fix backup file selection, support hasha link

fix backup, notification for android 33+
Update README.md
2024-01-15 19:01:30 -08:00 · 2024-01-14 14:30:17 -08:00 · 2022-07-20 09:05:47 -07:00 · 2022-07-20 09:04:35 -07:00 · 2022-07-20 09:04:23 -07:00 · 2022-07-19 20:31:42 -07:00
135 changed files with 5205 additions and 9895 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -1,20 +1,33 @@
+# Gradle files
+.gradle/
+build/
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Log/OS Files
+*.log
+
+# Android Studio generated files and folders
+captures/
+.externalNativeBuild/
+.cxx/
+*.apk
+output.json
+
+# IntelliJ
 *.iml
-.gradle
-/local.properties
-/.idea/caches
-/.idea/libraries
-/.idea/modules.xml
-/.idea/workspace.xml
-/.idea/navEditor.xml
-/.idea/assetWizardSettings.xml
-.DS_Store
-/build
-/captures
-.externalNativeBuild
+.idea/
+misc.xml
+deploymentTargetDropDown.xml
+render.experimental.xml

-#Github pages
-/gh-pages
+# Keystore files
+*.jks
+*.keystore

-#Private files
-**/google-services.json
-**/credentials.json
+# Google Services (e.g. APIs or Firebase)
+google-services.json
+
+# Android Profiling
+*.hprof
--- a/.idea/codeStyles/Project.xml
+++ b/.idea/codeStyles/Project.xml
@@ -1,139 +0,0 @@
-<component name="ProjectCodeStyleConfiguration">
-  <code_scheme name="Project" version="173">
-    <option name="RIGHT_MARGIN" value="120" />
-    <JetCodeStyleSettings>
-      <option name="PACKAGES_TO_USE_STAR_IMPORTS">
-        <value>
-          <package name="java.util" alias="false" withSubpackages="false" />
-          <package name="kotlinx.android.synthetic" alias="false" withSubpackages="true" />
-          <package name="io.ktor" alias="false" withSubpackages="true" />
-        </value>
-      </option>
-      <option name="PACKAGES_IMPORT_LAYOUT">
-        <value>
-          <package name="" alias="false" withSubpackages="true" />
-          <package name="java" alias="false" withSubpackages="true" />
-          <package name="javax" alias="false" withSubpackages="true" />
-          <package name="kotlin" alias="false" withSubpackages="true" />
-          <package name="" alias="true" withSubpackages="true" />
-        </value>
-      </option>
-      <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
-    </JetCodeStyleSettings>
-    <codeStyleSettings language="XML">
-      <indentOptions>
-        <option name="CONTINUATION_INDENT_SIZE" value="4" />
-      </indentOptions>
-      <arrangement>
-        <rules>
-          <section>
-            <rule>
-              <match>
-                <AND>
-                  <NAME>xmlns:android</NAME>
-                  <XML_ATTRIBUTE />
-                  <XML_NAMESPACE>^$</XML_NAMESPACE>
-                </AND>
-              </match>
-            </rule>
-          </section>
-          <section>
-            <rule>
-              <match>
-                <AND>
-                  <NAME>xmlns:.*</NAME>
-                  <XML_ATTRIBUTE />
-                  <XML_NAMESPACE>^$</XML_NAMESPACE>
-                </AND>
-              </match>
-              <order>BY_NAME</order>
-            </rule>
-          </section>
-          <section>
-            <rule>
-              <match>
-                <AND>
-                  <NAME>.*:id</NAME>
-                  <XML_ATTRIBUTE />
-                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                </AND>
-              </match>
-            </rule>
-          </section>
-          <section>
-            <rule>
-              <match>
-                <AND>
-                  <NAME>.*:name</NAME>
-                  <XML_ATTRIBUTE />
-                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                </AND>
-              </match>
-            </rule>
-          </section>
-          <section>
-            <rule>
-              <match>
-                <AND>
-                  <NAME>name</NAME>
-                  <XML_ATTRIBUTE />
-                  <XML_NAMESPACE>^$</XML_NAMESPACE>
-                </AND>
-              </match>
-            </rule>
-          </section>
-          <section>
-            <rule>
-              <match>
-                <AND>
-                  <NAME>style</NAME>
-                  <XML_ATTRIBUTE />
-                  <XML_NAMESPACE>^$</XML_NAMESPACE>
-                </AND>
-              </match>
-            </rule>
-          </section>
-          <section>
-            <rule>
-              <match>
-                <AND>
-                  <NAME>.*</NAME>
-                  <XML_ATTRIBUTE />
-                  <XML_NAMESPACE>^$</XML_NAMESPACE>
-                </AND>
-              </match>
-              <order>BY_NAME</order>
-            </rule>
-          </section>
-          <section>
-            <rule>
-              <match>
-                <AND>
-                  <NAME>.*</NAME>
-                  <XML_ATTRIBUTE />
-                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                </AND>
-              </match>
-              <order>ANDROID_ATTRIBUTE_ORDER</order>
-            </rule>
-          </section>
-          <section>
-            <rule>
-              <match>
-                <AND>
-                  <NAME>.*</NAME>
-                  <XML_ATTRIBUTE />
-                  <XML_NAMESPACE>.*</XML_NAMESPACE>
-                </AND>
-              </match>
-              <order>BY_NAME</order>
-            </rule>
-          </section>
-        </rules>
-      </arrangement>
-    </codeStyleSettings>
-    <codeStyleSettings language="kotlin">
-      <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
-    </codeStyleSettings>
-  </code_scheme>
-</component>
--- a/.idea/codeStyles/codeStyleConfig.xml
+++ b/.idea/codeStyles/codeStyleConfig.xml
@@ -1,5 +0,0 @@
-<component name="ProjectCodeStyleConfiguration">
-  <state>
-    <option name="USE_PER_PROJECT_SETTINGS" value="true" />
-  </state>
-</component>
--- a/.idea/copyright/GPL.xml
+++ b/.idea/copyright/GPL.xml
@@ -1,6 +0,0 @@
-<component name="CopyrightManager">
-  <copyright>
-    <option name="notice" value="    Pupil, Hitomi.la viewer for Android&#10;    Copyright (C) &amp;#36;today.year  tom5079&#10;&#10;    This program is free software: you can redistribute it and/or modify&#10;    it under the terms of the GNU General Public License as published by&#10;    the Free Software Foundation, either version 3 of the License, or&#10;    (at your option) any later version.&#10;&#10;    This program is distributed in the hope that it will be useful,&#10;    but WITHOUT ANY WARRANTY; without even the implied warranty of&#10;    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the&#10;    GNU General Public License for more details.&#10;&#10;    You should have received a copy of the GNU General Public License&#10;    along with this program.  If not, see &lt;http://www.gnu.org/licenses/&gt;." />
-    <option name="myName" value="GPL" />
-  </copyright>
-</component>
--- a/.idea/copyright/profiles_settings.xml
+++ b/.idea/copyright/profiles_settings.xml
@@ -1,7 +0,0 @@
-<component name="CopyrightManager">
-  <settings>
-    <module2copyright>
-      <element module="Pupil" copyright="GPL" />
-    </module2copyright>
-  </settings>
-</component>
--- a/.idea/dictionaries/tom50.xml
+++ b/.idea/dictionaries/tom50.xml
@@ -1,7 +0,0 @@
-<component name="ProjectDictionaryState">
-  <dictionary name="tom50">
-    <words>
-      <w>hitomi</w>
-    </words>
-  </dictionary>
-</component>
--- a/.idea/encodings.xml
+++ b/.idea/encodings.xml
@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="Encoding" addBOMForNewFiles="with NO BOM" />
-</project>
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -1,20 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="GradleMigrationSettings" migrationVersion="1" />
-  <component name="GradleSettings">
-    <option name="linkedExternalProjectsSettings">
-      <GradleProjectSettings>
-        <option name="testRunner" value="PLATFORM" />
-        <option name="distributionType" value="DEFAULT_WRAPPED" />
-        <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="modules">
-          <set>
-            <option value="$PROJECT_DIR$" />
-            <option value="$PROJECT_DIR$/app" />
-          </set>
-        </option>
-        <option name="resolveModulePerSourceSet" value="false" />
-      </GradleProjectSettings>
-    </option>
-  </component>
-</project>
--- a/.idea/jarRepositories.xml
+++ b/.idea/jarRepositories.xml
@@ -1,65 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="RemoteRepositoriesConfiguration">
-    <remote-repository>
-      <option name="id" value="central" />
-      <option name="name" value="Maven Central repository" />
-      <option name="url" value="https://repo1.maven.org/maven2" />
-    </remote-repository>
-    <remote-repository>
-      <option name="id" value="jboss.community" />
-      <option name="name" value="JBoss Community repository" />
-      <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
-    </remote-repository>
-    <remote-repository>
-      <option name="id" value="maven2" />
-      <option name="name" value="maven2" />
-      <option name="url" value="http://guardian.github.com/maven/repo-releases" />
-    </remote-repository>
-    <remote-repository>
-      <option name="id" value="BintrayJCenter" />
-      <option name="name" value="BintrayJCenter" />
-      <option name="url" value="https://jcenter.bintray.com/" />
-    </remote-repository>
-    <remote-repository>
-      <option name="id" value="maven" />
-      <option name="name" value="maven" />
-      <option name="url" value="https://jitpack.io" />
-    </remote-repository>
-    <remote-repository>
-      <option name="id" value="Google" />
-      <option name="name" value="Google" />
-      <option name="url" value="https://dl.google.com/dl/android/maven2/" />
-    </remote-repository>
-    <remote-repository>
-      <option name="id" value="MavenRepo" />
-      <option name="name" value="MavenRepo" />
-      <option name="url" value="https://repo.maven.apache.org/maven2/" />
-    </remote-repository>
-    <remote-repository>
-      <option name="id" value="maven2" />
-      <option name="name" value="maven2" />
-      <option name="url" value="https://guardian.github.com/maven/repo-releases" />
-    </remote-repository>
-    <remote-repository>
-      <option name="id" value="maven3" />
-      <option name="name" value="maven3" />
-      <option name="url" value="https://s3.amazonaws.com/fabric-artifacts-private/internal-snapshots" />
-    </remote-repository>
-    <remote-repository>
-      <option name="id" value="maven4" />
-      <option name="name" value="maven4" />
-      <option name="url" value="https://maven.fabric.io/public" />
-    </remote-repository>
-    <remote-repository>
-      <option name="id" value="MavenLocal" />
-      <option name="name" value="MavenLocal" />
-      <option name="url" value="file:/$USER_HOME$/.m2/repository/" />
-    </remote-repository>
-    <remote-repository>
-      <option name="id" value="MavenLocal" />
-      <option name="name" value="MavenLocal" />
-      <option name="url" value="file:/$USER_HOME$/.m2/repository" />
-    </remote-repository>
-  </component>
-</project>
--- a/.idea/kotlinCodeInsightSettings.xml
+++ b/.idea/kotlinCodeInsightSettings.xml
@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="KotlinCodeInsightWorkspaceSettings">
-    <option name="addUnambiguousImportsOnTheFly" value="true" />
-    <option name="optimizeImportsOnTheFly" value="true" />
-  </component>
-</project>
--- a/.idea/kotlinc.xml
+++ b/.idea/kotlinc.xml
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="Kotlin2JvmCompilerArguments">
-    <option name="jvmTarget" value="1.8" />
-  </component>
-</project>
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
-    <output url="file://$PROJECT_DIR$/build/classes" />
-  </component>
-  <component name="ProjectType">
-    <option name="id" value="Android" />
-  </component>
-</project>
--- a/.idea/runConfigurations.xml
+++ b/.idea/runConfigurations.xml
@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="RunConfigurationProducerService">
-    <option name="ignoredProducers">
-      <set>
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.AllInPackageGradleConfigurationProducer" />
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestClassGradleConfigurationProducer" />
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestMethodGradleConfigurationProducer" />
-      </set>
-    </option>
-  </component>
-</project>
--- a/.idea/scopes/Pupil.xml
+++ b/.idea/scopes/Pupil.xml
@@ -1,3 +0,0 @@
-<component name="DependencyValidationManager">
-  <scope name="Pupil" pattern="file[app]:*/" />
-</component>
--- a/.idea/vcs.xml
+++ b/.idea/vcs.xml
@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="" vcs="Git" />
-    <mapping directory="$PROJECT_DIR$/gh-pages" vcs="Git" />
-  </component>
-</project>
--- a/README.md
+++ b/README.md
@@ -1,18 +1,12 @@
-# Pupil
-
 ![Banner](https://github.com/tom5079/Pupil/blob/gh-pages/assets/images/pupil-banner.png?raw=true)
 *Pupil, Hitomi.la viewer for Android*  

-[![](https://discordapp.com/api/guilds/610452916612104194/embed.png?style=banner2)](https://discord.gg/Stj4b5v)  
+![](https://img.shields.io/github/downloads/tom5079/Pupil/total)  
+[![](https://img.shields.io/github/downloads/tom5079/Pupil/5.3.8-hotfix1/Pupil-v5.3.8-hotfix1.apk?color=%234fc3f7&label=DOWNLOAD%20APP&style=for-the-badge)](https://github.com/tom5079/Pupil/releases/download/5.3.8-hotfix1/Pupil-v5.3.8-hotfix1.apk)  
+[![](https://discordapp.com/api/guilds/610452916612104194/embed.png?style=banner2)](https://discord.gg/Stj4b5v)

-# Screenshot
-![Main Screen](https://github.com/tom5079/Pupil/blob/gh-pages/assets/images/main-screenshot.png?raw=true)
-*Main Screen*
-
-![Reader Screen](https://github.com/tom5079/Pupil/blob/gh-pages/assets/images/reader-screenshot.png?raw=true)
-*Reader Screen*
-
-Images are censored to be SFW
+# Features
+![Main Screen](https://github.com/tom5079/Pupil/blob/gh-pages/assets/images/main-screenshot.jpg?raw=true)

 # Installation

@@ -26,4 +20,7 @@ or Build app yourself

 # Contribution

-Any kind of contribution is appriciated. Feel free to leave PR! 
+Any kind of contribution is appreciated. Feel free to leave PR!
+
+## Tag Translation
+Head over to [tags branch](https://github.com/tom5079/Pupil/tree/tags)
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,42 +1,58 @@
-apply plugin: 'com.android.application'
-apply plugin: 'kotlin-android'
-apply plugin: 'kotlin-kapt'
-apply plugin: 'kotlin-android-extensions'
-apply plugin: 'kotlinx-serialization'
-apply plugin: 'com.google.android.gms.oss-licenses-plugin'
+apply plugin: "com.android.application"
+apply plugin: "kotlin-android"
+apply plugin: "kotlin-kapt"
+apply plugin: "kotlin-parcelize"
+apply plugin: "kotlinx-serialization"
+apply plugin: "com.google.android.gms.oss-licenses-plugin"

-if (file("google-services.json").exists() && file("src/debug/google-services.json").exists()) {
+if (file("google-services.json").exists()) {
    logger.lifecycle("Firebase Enabled")
-    apply plugin: 'com.google.gms.google-services'
-    apply plugin: 'com.google.firebase.crashlytics'
-    apply plugin: 'com.google.firebase.firebase-perf'
+    apply plugin: "com.google.gms.google-services"
+    apply plugin: "com.google.firebase.crashlytics"
+    apply plugin: "com.google.firebase.firebase-perf"
 } else {
    logger.lifecycle("Firebase Disabled")
 }

+ext {
+    okhttp_version = "3.12.12"
+}
+
+configurations {
+    all {
+        resolutionStrategy {
+            eachDependency { DependencyResolveDetails details ->
+                if (details.requested.group == "com.squareup.okhttp3" && details.requested.name == "okhttp") {
+                    // OkHttp drops support before 5.0 since 3.13.0
+                    details.useVersion okhttp_version
+                }
+            }
+        }
+    }
+}
+
 android {
-    compileSdkVersion 30
    defaultConfig {
        applicationId "xyz.quaver.pupil"
        minSdkVersion 16
-        targetSdkVersion 30
-        versionCode 59
-        versionName "5.0.1-hotfix1"
+        compileSdk 34
+        targetSdkVersion 34
+        versionCode 69
+        versionName "5.3.10"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        vectorDrawables.useSupportLibrary = true
    }
    buildTypes {
        debug {
-            minifyEnabled true
-            shrinkResources true
+            defaultConfig.minSdkVersion 21
+
+            minifyEnabled false
+            shrinkResources false

            debuggable true
            applicationIdSuffix ".debug"
            versionNameSuffix "-DEBUG"

-            buildConfigField('Boolean', 'CENSOR', 'false')
-            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
-
            ext.enableCrashlytics = false
            ext.alwaysUpdateBuildId = false
        }
@@ -44,72 +60,82 @@ android {
            minifyEnabled true
            shrinkResources true

-            buildConfigField('Boolean', 'CENSOR', 'false')
-            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            proguardFiles getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro"
        }
    }
+    buildFeatures {
+        viewBinding true
+    }
    kotlinOptions {
-        jvmTarget = JavaVersion.VERSION_1_8.toString()
-        freeCompilerArgs += '-Xuse-experimental=kotlin.Experimental'
+        jvmTarget = JavaVersion.VERSION_11.toString()
+        freeCompilerArgs += "-Xuse-experimental=kotlin.Experimental"
    }
    compileOptions {
-        sourceCompatibility JavaVersion.VERSION_1_8
-        targetCompatibility JavaVersion.VERSION_1_8
+        sourceCompatibility JavaVersion.VERSION_11
+        targetCompatibility JavaVersion.VERSION_11
    }
-    buildToolsVersion = '29.0.3'
 }

 dependencies {
-    implementation fileTree(dir: 'libs', include: ['*.jar', '*.aar'])
+    implementation fileTree(dir: "libs", include: ["*.jar", "*.aar"])
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
-    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.9"
-    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.9"
-    //implementation "org.jetbrains.kotlinx:kotlinx-serialization-core:1.0.0-RC"
-    implementation 'androidx.appcompat:appcompat:1.2.0'
-    implementation 'androidx.constraintlayout:constraintlayout:2.0.1'
-    implementation 'androidx.preference:preference:1.1.1'
-    implementation 'androidx.gridlayout:gridlayout:1.0.0'
-    implementation "androidx.biometric:biometric:1.0.1"
-    implementation 'androidx.fragment:fragment-ktx:1.2.5'
-    implementation "com.daimajia.swipelayout:library:1.2.0@aar"
-    implementation 'com.google.android.material:material:1.3.0-alpha02'
-    implementation 'com.google.firebase:firebase-core:17.5.0'
-    implementation 'com.google.firebase:firebase-analytics:17.5.0'
-    implementation 'com.google.firebase:firebase-crashlytics:17.2.1'
-    implementation 'com.google.firebase:firebase-perf:19.0.8'
-    implementation 'com.google.android.gms:play-services-oss-licenses:17.0.0'
-    implementation 'com.github.arimorty:floatingsearchview:2.1.1'
-    implementation 'com.github.clans:fab:1.6.4'
-    //implementation 'com.quiph.ui:recyclerviewfastscroller:0.2.1'
-    //noinspection GradleDependency
-    implementation 'com.squareup.okhttp3:okhttp:3.12.12'
-    implementation 'com.github.bumptech.glide:glide:4.11.0'
-    implementation ("com.github.bumptech.glide:okhttp3-integration:4.11.0") {
-        transitive = false
-    }
-    implementation 'com.github.bumptech.glide:annotations:4.11.0'
-    annotationProcessor 'com.github.bumptech.glide:compiler:4.11.0'
-    kapt 'com.github.bumptech.glide:compiler:4.11.0'
-    implementation ("com.github.bumptech.glide:recyclerview-integration:4.11.0") {
-        transitive = false
-    }
-    implementation 'com.tbuonomo.andrui:viewpagerdotsindicator:4.1.2'
-    implementation 'net.rdrei.android.dirchooser:library:3.2@aar'
-    implementation 'com.github.chrisbanes:PhotoView:2.3.0'
-    implementation 'com.andrognito.patternlockview:patternlockview:1.0.0'
-    //implementation 'com.andrognito.pinlockview:pinlockview:2.1.0'
-    implementation "ru.noties.markwon:core:3.1.0"
-    implementation ("xyz.quaver:libpupil:1.6") {
-        exclude group: 'org.jetbrains.kotlinx', module: 'kotlinx-serialization-core-jvm'
-    }
-    implementation "xyz.quaver:documentfilex:0.2.15"
-    testImplementation 'junit:junit:4.13'
-    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
-    androidTestImplementation 'androidx.test:rules:1.3.0'
-    androidTestImplementation 'androidx.test:runner:1.3.0'
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
-}
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.7.1"
+    implementation "org.jetbrains.kotlinx:kotlinx-serialization-json:1.3.2"
+    implementation "org.jetbrains.kotlinx:kotlinx-datetime:0.3.2"
+    
+    implementation "androidx.appcompat:appcompat:1.4.1"
+    implementation "androidx.activity:activity-ktx:1.4.0"
+    implementation "androidx.fragment:fragment-ktx:1.4.1"
+    implementation "androidx.preference:preference-ktx:1.2.0"
+    implementation "androidx.recyclerview:recyclerview:1.2.1"
+    implementation "androidx.constraintlayout:constraintlayout:2.1.3"
+    implementation "androidx.gridlayout:gridlayout:1.0.0"
+    implementation "androidx.biometric:biometric:1.1.0"
+    implementation "androidx.work:work-runtime-ktx:2.7.1"

-androidExtensions {
-    experimental = true
+    implementation "com.daimajia.swipelayout:library:1.2.0@aar"
+
+    implementation "com.google.android.material:material:1.11.0"
+
+    implementation platform('com.google.firebase:firebase-bom:32.7.0')
+    implementation "com.google.firebase:firebase-analytics-ktx"
+    implementation "com.google.firebase:firebase-crashlytics-ktx"
+    implementation "com.google.firebase:firebase-perf-ktx"
+
+    implementation "com.google.android.gms:play-services-oss-licenses:17.0.1"
+    implementation "com.google.android.gms:play-services-mlkit-face-detection:17.1.0"
+
+    implementation "com.github.clans:fab:1.6.4"
+
+    //implementation "com.quiph.ui:recyclerviewfastscroller:0.2.1"
+
+    implementation 'com.github.piasy:BigImageViewer:1.8.1'
+    implementation 'com.github.piasy:FrescoImageLoader:1.8.1'
+    implementation 'com.github.piasy:FrescoImageViewFactory:1.8.1'
+    implementation 'com.facebook.fresco:imagepipeline-okhttp3:2.6.0'
+
+    //noinspection GradleDependency
+    implementation "com.squareup.okhttp3:okhttp:$okhttp_version"
+
+    implementation "com.tbuonomo.andrui:viewpagerdotsindicator:4.1.2"
+
+    implementation "net.rdrei.android.dirchooser:library:3.2@aar"
+    implementation "com.gu:option:1.3"
+
+    implementation "com.andrognito.patternlockview:patternlockview:1.0.0"
+    //implementation "com.andrognito.pinlockview:pinlockview:2.1.0"
+
+    implementation "ru.noties.markwon:core:3.1.0"
+
+    implementation "org.jsoup:jsoup:1.14.3"
+
+    implementation "xyz.quaver:documentfilex:0.7.2"
+    implementation "xyz.quaver:floatingsearchview:1.1.7"
+
+    testImplementation "junit:junit:4.13.2"
+    testImplementation "org.jetbrains.kotlinx:kotlinx-coroutines-test:1.6.1"
+    androidTestImplementation "androidx.test.ext:junit:1.1.3"
+    androidTestImplementation "androidx.test:rules:1.4.0"
+    androidTestImplementation "androidx.test:runner:1.4.0"
+    androidTestImplementation "androidx.test.espresso:espresso-core:3.4.0"
 }
--- a/app/libs/kotlinx-serialization-core-1.0.0-RC.jar
+++ b/app/libs/kotlinx-serialization-core-1.0.0-RC.jar
--- a/app/libs/recyclerviewfastscroller-release.aar
+++ b/app/libs/recyclerviewfastscroller-release.aar
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -22,21 +22,6 @@

 -dontobfuscate

-keep public class * implements com.bumptech.glide.module.GlideModule
-keep class * extends com.bumptech.glide.module.AppGlideModule {
- <init>(...);
-}
-keep public enum com.bumptech.glide.load.ImageHeaderParser$** {
-  **[] $VALUES;
-  public *;
-}
-keep class com.bumptech.glide.load.data.ParcelFileDescriptorRewinder$InternalRewinder {
-  *** rewind();
-}
-
-keep public class * extends com.bumptech.glide.module.AppGlideModule
-keep class com.bumptech.glide.GeneratedAppGlideModuleImpl
-
 -keepattributes *Annotation*, InnerClasses
 -dontnote kotlinx.serialization.SerializationKt
 -keep,includedescriptorclasses class xyz.quaver.**$$serializer { *; } # <-- change package name to your app's
@@ -48,4 +33,5 @@
 }
 -keep class xyz.quaver.pupil.ui.fragment.ManageFavoritesFragment
 -keep class xyz.quaver.pupil.ui.fragment.ManageStorageFragment
-keep class xyz.quaver.pupil.util.Preferences
+-keep class xyz.quaver.pupil.** { *; }
+-keep class app.cash.zipline.** { *; }
--- a/app/release/output-metadata.json
+++ b/app/release/output-metadata.json
@@ -1,5 +1,5 @@
 {
-  "version": 1,
+  "version": 3,
  "artifactType": {
    "type": "APK",
    "kind": "Directory"
@@ -10,11 +10,11 @@
    {
      "type": "SINGLE",
      "filters": [],
-      "properties": [],
-      "versionCode": 59,
-      "versionName": "5.0.1-hotfix1",
-      "enabled": true,
+      "attributes": [],
+      "versionCode": 69,
+      "versionName": "5.3.10",
      "outputFile": "app-release.apk"
    }
-  ]
+  ],
+  "elementType": "File"
 }
--- a/app/src/androidTest/java/xyz/quaver/pupil/ExampleInstrumentedTest.kt
+++ b/app/src/androidTest/java/xyz/quaver/pupil/ExampleInstrumentedTest.kt
@@ -20,10 +20,18 @@

 package xyz.quaver.pupil

+import android.util.Log
 import androidx.test.ext.junit.runners.AndroidJUnit4
-import androidx.test.platform.app.InstrumentationRegistry
+import kotlinx.coroutines.runBlocking
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import org.junit.Assert.assertEquals
+import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
+import xyz.quaver.pupil.hitomi.*
+import java.util.*
+import java.util.concurrent.TimeUnit

 /**
 * Instrumented test, which will execute on an Android device.
@@ -32,10 +40,144 @@ import org.junit.runner.RunWith
 */
@RunWith(AndroidJUnit4::class)
 class ExampleInstrumentedTest {
+//    @Before
+//    fun init() {
+//        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+//    }
+
+    @Before
+    fun init() {
+        clientBuilder = OkHttpClient.Builder()
+            .readTimeout(0, TimeUnit.SECONDS)
+            .writeTimeout(0, TimeUnit.SECONDS)
+            .callTimeout(0, TimeUnit.SECONDS)
+            .connectTimeout(0, TimeUnit.SECONDS)
+            .addInterceptor { chain ->
+                val request = chain.request().newBuilder()
+                    .header("Referer", "https://hitomi.la/")
+                    .build()
+
+                chain.proceed(request)
+            }
+    }

    @Test
-    fun useAppContext() {
-        // Context of the app under test.
-        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+    fun test_empty() {
+        print(
+            "".trim()
+                .replace(Regex("""^\?"""), "")
+                .lowercase(Locale.getDefault())
+                .split(Regex("\\s+"))
+                .map {
+                    it.replace('_', ' ')
+                })
    }
+    @Test
+    fun test_nozomi() {
+        val nozomi = getGalleryIDsFromNozomi(null, "index", "all")
+
+        Log.d("PUPILD", nozomi.size.toString())
+    }
+
+    @Test
+    fun test_search() {
+        val ids = getGalleryIDsForQuery("language:korean").reversed()
+
+        print(ids.size)
+    }
+
+    @Test
+    fun test_suggestions() {
+        val suggestions = getSuggestionsForQuery("language:g")
+
+        print(suggestions)
+    }
+
+    @Test
+    fun test_doSearch() {
+        val r = runBlocking {
+            doSearch("language:korean")
+        }
+
+        Log.d("PUPILD", r.take(10).toString())
+    }
+
+//    @Test
+//    fun test_getBlock() {
+//        val galleryBlock = getGalleryBlock(2097576)
+//
+//        print(galleryBlock)
+//    }
+//
+//    @Test
+//    fun test_getGallery() {
+//        val gallery = getGallery(2097751)
+//
+//        print(gallery)
+//    }
+
+    @Test
+    fun test_getGalleryInfo() {
+        val info = getGalleryInfo(1469394)
+
+        print(info)
+    }
+
+    @Test
+    fun test_getReader() {
+        val reader = getGalleryInfo(2128654)
+
+        Log.d("PUPILD", reader.toString())
+    }
+
+    @Test
+    fun test_getImages() { runBlocking {
+        val galleryID = 2128654
+
+        val images = getGalleryInfo(galleryID).files.map {
+            imageUrlFromImage(galleryID, it,false)
+        }
+
+        Log.d("PUPILD", images.toString())
+
+//        images.forEachIndexed { index, image ->
+//            println("Testing $index/${images.size}: $image")
+//            val response = client.newCall(
+//                Request.Builder()
+//                    .url(image)
+//                    .header("Referer", "https://hitomi.la/")
+//                    .build()
+//            ).execute()
+//
+//            assertEquals(200, response.code())
+//
+//            println("$index/${images.size} Passed")
+//        }
+    } }
+
+//    @Test
+//    fun test_urlFromUrlFromHash() {
+//        val url = urlFromUrlFromHash(1531795, GalleryFiles(
+//            212, "719d46a7556be0d0021c5105878507129b5b3308b02cf67f18901b69dbb3b5ef", 1, "00.jpg", 300
+//        ), "webp")
+//
+//        print(url)
+//    }
+
+//    @Test
+//    suspend fun test_doSearch_extreme() {
+//        val query = "language:korean -tag:sample -female:humiliation -female:diaper -female:strap-on -female:squirting -female:lizard_girl -female:voyeurism -type:artistcg -female:blood -female:ryona -male:blood -male:ryona -female:crotch_tattoo -male:urethra_insertion -female:living_clothes -male:tentacles -female:slave -female:gag -male:gag -female:wooden_horse -male:exhibitionism -male:miniguy -female:mind_break -male:mind_break -male:unbirth -tag:scanmark -tag:no_penetration -tag:nudity_only -female:enema -female:brain_fuck -female:navel_fuck -tag:novel -tag:mosaic_censorship -tag:webtoon -male:rape -female:rape -female:yuri -male:anal -female:anal -female:futanari -female:huge_breasts -female:big_areolae -male:torture -male:stuck_in_wall -female:stuck_in_wall -female:torture -female:birth -female:pregnant -female:drugs -female:bdsm -female:body_writing -female:cbt -male:dark_skin -male:insect -female:insect -male:vore -female:vore -female:vomit -female:urination -female:urethra_insertion -tag:mmf_threesome -female:sex_toys -female:double_penetration -female:eggs -female:prolapse -male:smell -male:bestiality -female:bestiality -female:big_ass -female:milf -female:mother -male:dilf -male:netorare -female:netorare -female:cosplaying -female:filming -female:armpit_sex -female:armpit_licking -female:tickling -female:lactation -male:skinsuit -female:skinsuit -male:bbm -female:prostitution -female:double_penetration -female:females_only -male:males_only -female:tentacles -female:tentacles -female:stomach_deformation -female:hairy_armpits -female:large_insertions -female:mind_control -male:orc -female:dark_skin -male:yandere -female:yandere -female:scat -female:toddlercon -female:bbw -female:hairy -male:cuntboy -male:lactation -male:drugs -female:body_modification -female:monoeye -female:chikan -female:long_tongue -female:harness -female:fisting -female:glory_hole -female:latex -male:latex -female:unbirth -female:giantess -female:sole_dickgirl -female:robot -female:doll_joints -female:machine -tag:artbook -male:cbt -female:farting -male:farting -male:midget -female:midget -female:exhibitionism  -male:monster -female:big_nipples -female:big_clit -female:gyaru -female:piercing -female:necrophilia -female:snuff -female:smell -male:cheating -female:cheating -male:snuff -female:harem -male:harem"
+//        print(doSearch(query).size)
+//    }
+
+//    @Test
+//    suspend fun test_parse() {
+//        print(doSearch("-male:yaoi -female:yaoi -female:loli").size)
+//    }
+
+//    @Test
+//    fun test_subdomainFromUrl() {
+//        val galleryInfo = getGalleryInfo(1929109).files[2]
+//        print(urlFromUrlFromHash(1929109, galleryInfo, "webp", null, "a"))
+//    }
 }
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -6,10 +6,16 @@
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
    <uses-permission android:name="android.permission.USE_BIOMETRIC" />
-    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" android:maxSdkVersion="23"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" android:maxSdkVersion="23"/>
    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+    <uses-permission android:name="android.permission.CAMERA" />
+    <uses-permission android:name="android.permission.VIBRATE"/>
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE_SPECIAL_USE"/>
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>

+    <uses-feature android:name="android.hardware.camera" android:required="false" />
+    <uses-feature android:name="android.hardware.camera.autofocus" android:required="false" />

    <application
        android:name=".Pupil"
@@ -24,6 +30,10 @@
        tools:replace="android:theme"
        tools:ignore="UnusedAttribute">

+        <meta-data
+            android:name="com.google.mlkit.vision.DEPENDENCIES"
+            android:value="face" />
+
        <provider
            android:authorities="${applicationId}.provider"
            android:name="androidx.core.content.FileProvider"
@@ -37,7 +47,8 @@
        </provider>

        <service android:name=".services.DownloadService"
-            android:exported="false"/>
+            android:exported="false"
+            android:foregroundServiceType="specialUse" />

        <receiver
            android:name=".receiver.UpdateBroadcastReceiver"
@@ -51,188 +62,121 @@
        <activity
            android:name=".ui.ReaderActivity"
            android:configChanges="keyboardHidden|orientation|screenSize"
-            android:parentActivityName=".ui.MainActivity">
-            <intent-filter>
+            android:parentActivityName=".ui.MainActivity"
+            android:exported="true">
+            <intent-filter android:autoVerify="true">
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

-                <data
-                    android:host="hitomi.la"
-                    android:pathPrefix="/galleries"
-                    android:scheme="http" />
+                <data android:scheme="http" />
+                <data android:scheme="https" />
+                <data android:host="*.hasha.in"/>
+                <data android:pathPrefix="/reader"/>
            </intent-filter>
-            <intent-filter>
+            <intent-filter android:autoVerify="true">
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

-                <data
-                    android:host="hitomi.la"
-                    android:pathPrefix="/manga"
-                    android:scheme="http" />
+                <data android:scheme="http" />
+                <data android:scheme="https" />
+                <data android:host="hitomi.la"/>
+                <data android:pathPrefix="/galleries"/>
            </intent-filter>
-            <intent-filter>
+            <intent-filter android:autoVerify="true">
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

-                <data
-                    android:host="hitomi.la"
-                    android:pathPrefix="/doujinshi"
-                    android:scheme="http" />
+                <data android:scheme="http" />
+                <data android:scheme="https" />
+                <data android:host="hitomi.la" />
+                <data android:pathPrefix="/manga" />
            </intent-filter>
-            <intent-filter>
+            <intent-filter android:autoVerify="true">
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

-                <data
-                    android:host="hitomi.la"
-                    android:pathPrefix="/cg"
-                    android:scheme="http" />
+                <data android:scheme="http" />
+                <data android:scheme="https" />
+                <data android:host="hitomi.la" />
+                <data android:pathPrefix="/doujinshi" />
            </intent-filter>
-            <intent-filter>
+            <intent-filter android:autoVerify="true">
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

-                <data
-                    android:host="hitomi.la"
-                    android:pathPrefix="/reader"
-                    android:scheme="http" />
+                <data android:scheme="http" />
+                <data android:scheme="https" />
+                <data android:host="hitomi.la" />
+                <data android:pathPrefix="/cg" />
            </intent-filter>
-            <intent-filter>
+            <intent-filter android:autoVerify="true">
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

-                <data
-                    android:host="hitomi.la"
-                    android:pathPrefix="/galleries"
-                    android:scheme="https" />
+                <data android:scheme="http" />
+                <data android:scheme="https" />
+                <data android:host="hitomi.la" />
+                <data android:pathPrefix="/imageset" />
            </intent-filter>
-            <intent-filter>
+            <intent-filter android:autoVerify="true">
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

-                <data
-                    android:host="hitomi.la"
-                    android:pathPrefix="/manga"
-                    android:scheme="https" />
+                <data android:scheme="http" />
+                <data android:scheme="https" />
+                <data android:host="hitomi.la" />
+                <data android:pathPrefix="/reader" />
            </intent-filter>
-            <intent-filter>
+            <intent-filter android:autoVerify="true">
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

-                <data
-                    android:host="hitomi.la"
-                    android:pathPrefix="/doujinshi"
-                    android:scheme="https" />
+                <data android:scheme="http" />
+                <data android:host="e-hentai.org" />
+                <data android:pathPrefix="/g" />
            </intent-filter>
-            <intent-filter>
+            <intent-filter android:autoVerify="true">
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

-                <data
-                    android:host="hitomi.la"
-                    android:pathPrefix="/cg"
-                    android:scheme="https" />
-            </intent-filter>
-            <intent-filter>
-                <action android:name="android.intent.action.VIEW" />
-
-                <category android:name="android.intent.category.DEFAULT" />
-                <category android:name="android.intent.category.BROWSABLE" />
-
-                <data
-                    android:host="hitomi.la"
-                    android:pathPrefix="/reader"
-                    android:scheme="https" />
-            </intent-filter>
-            <intent-filter>
-                <action android:name="android.intent.action.VIEW" />
-
-                <category android:name="android.intent.category.DEFAULT" />
-                <category android:name="android.intent.category.BROWSABLE" />
-
-                <data
-                    android:host="hiyobi.me"
-                    android:scheme="http"
-                    android:pathPrefix="/reader" />
-            </intent-filter>
-            <intent-filter>
-                <action android:name="android.intent.action.VIEW" />
-
-                <category android:name="android.intent.category.DEFAULT" />
-                <category android:name="android.intent.category.BROWSABLE" />
-
-                <data
-                    android:host="hiyobi.me"
-                    android:pathPrefix="/reader"
-                    android:scheme="https" />
-            </intent-filter>
-            <intent-filter>
-                <action android:name="android.intent.action.VIEW" />
-
-                <category android:name="android.intent.category.DEFAULT" />
-                <category android:name="android.intent.category.BROWSABLE" />
-
-                <data
-                    android:host="e-hentai.org"
-                    android:pathPrefix="/g"
-                    android:scheme="http" />
-            </intent-filter>
-            <intent-filter>
-                <action android:name="android.intent.action.VIEW" />
-
-                <category android:name="android.intent.category.DEFAULT" />
-                <category android:name="android.intent.category.BROWSABLE" />
-
-                <data
-                    android:host="e-hentai.org"
-                    android:pathPrefix="/g"
-                    android:scheme="https" />
+                <data android:scheme="https" />
+                <data android:host="e-hentai.org" />
+                <data android:pathPrefix="/g" />
            </intent-filter>
        </activity>
        <activity
            android:name=".ui.SettingsActivity"
            android:label="@string/settings_title">
-            <tools:validation testUrl="http://ix.io/eer" />
        </activity>
        <activity
            android:name=".ui.MainActivity"
            android:configChanges="keyboardHidden|orientation|screenSize"
-            android:theme="@style/NoActionBarAppTheme">
+            android:theme="@style/NoActionBarAppTheme"
+            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
-            <intent-filter>
-                <action android:name="android.intent.action.VIEW" />
-
-                <category android:name="android.intent.category.DEFAULT" />
-                <category android:name="android.intent.category.BROWSABLE" />
-
-                <data
-                    android:scheme="http"
-                    android:host="ix.io"
-                    android:pathPattern="/..*" />
-            </intent-filter>
        </activity>
        <activity android:name="net.rdrei.android.dirchooser.DirectoryChooserActivity" />
    </application>
--- a/app/src/main/java/xyz/quaver/pupil/Pupil.kt
+++ b/app/src/main/java/xyz/quaver/pupil/Pupil.kt
@@ -18,32 +18,40 @@

 package xyz.quaver.pupil

-import android.app.*
+import android.app.Application
+import android.app.Notification
+import android.app.NotificationChannel
+import android.app.NotificationManager
 import android.content.Context
 import android.content.Intent
 import android.net.Uri
 import android.os.Build
+import android.util.Log
 import androidx.appcompat.app.AppCompatDelegate
 import androidx.core.content.ContextCompat
 import androidx.preference.PreferenceManager
+import com.facebook.imagepipeline.backends.okhttp3.OkHttpImagePipelineConfigFactory
+import com.github.piasy.biv.BigImageViewer
+import com.github.piasy.biv.loader.fresco.FrescoImageLoader
 import com.google.android.gms.common.GooglePlayServicesNotAvailableException
 import com.google.android.gms.common.GooglePlayServicesRepairableException
 import com.google.android.gms.security.ProviderInstaller
-import com.google.firebase.analytics.FirebaseAnalytics
+import com.google.firebase.FirebaseApp
 import com.google.firebase.crashlytics.FirebaseCrashlytics
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
+import kotlinx.coroutines.*
+import okhttp3.Dispatcher
 import okhttp3.Interceptor
 import okhttp3.OkHttpClient
 import okhttp3.Response
 import xyz.quaver.io.FileX
+import xyz.quaver.pupil.hitomi.evaluationContext
+import xyz.quaver.pupil.hitomi.readText
 import xyz.quaver.pupil.types.Tag
 import xyz.quaver.pupil.util.*
-import xyz.quaver.pupil.util.downloader.DownloadManager
-import xyz.quaver.setClient
 import java.io.File
+import java.net.URL
 import java.util.*
+import java.util.concurrent.Executors
 import java.util.concurrent.TimeUnit
 import kotlin.reflect.KClass

@@ -66,16 +74,19 @@ var clientHolder: OkHttpClient? = null
 val client: OkHttpClient
    get() = clientHolder ?: clientBuilder.build().also {
        clientHolder = it
-        setClient(it)
    }

 class Pupil : Application() {
-
-    init {
-        AppCompatDelegate.setCompatVectorFromResourcesEnabled(true)
+    companion object {
+        lateinit var instance: Pupil
+            private set
    }

    override fun onCreate() {
+        instance = this
+
+        AppCompatDelegate.setCompatVectorFromResourcesEnabled(true)
+
        preferences = PreferenceManager.getDefaultSharedPreferences(this)

        val userID = Preferences["user_id", ""].let {  userID ->
@@ -83,24 +94,34 @@ class Pupil : Application() {
            else userID
        }

+        FirebaseApp.initializeApp(this)
        FirebaseCrashlytics.getInstance().setUserId(userID)

        val proxyInfo = getProxyInfo()

        clientBuilder = OkHttpClient.Builder()
-            .connectTimeout(0, TimeUnit.SECONDS)
+//            .connectTimeout(0, TimeUnit.SECONDS)
            .readTimeout(0, TimeUnit.SECONDS)
            .proxyInfo(proxyInfo)
            .addInterceptor { chain ->
-                val request = chain.request()
+                val request = chain.request().newBuilder()
+                    .addHeader("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.81 Safari/537.36")
+                    .header("Referer", "https://hitomi.la/")
+                    .build()
+
                val tag = request.tag() ?: return@addInterceptor chain.proceed(request)

                interceptors[tag::class]?.invoke(chain) ?: chain.proceed(request)
+            }.apply {
+                (Preferences.get<String>("max_concurrent_download").toIntOrNull() ?: 0).let {
+                    if (it != 0)
+                        dispatcher(Dispatcher(Executors.newFixedThreadPool(it)))
+                }
            }

        try {
            Preferences.get<String>("download_folder").also {
-                if (it.startsWith("content") && Build.VERSION.SDK_INT > 19)
+                if (it.startsWith("content://"))
                    contentResolver.takePersistableUriPermission(
                        Uri.parse(it),
                        Intent.FLAG_GRANT_READ_URI_PERMISSION or Intent.FLAG_GRANT_WRITE_URI_PERMISSION
@@ -108,34 +129,28 @@ class Pupil : Application() {

                if (!FileX(this, it).canWrite())
                    throw Exception()
-
-                DownloadManager.getInstance(this).migrate()
            }
        } catch (e: Exception) {
            Preferences.remove("download_folder")
        }

+        if (!Preferences["reset_secure", false]) {
+            Preferences["security_mode"] = false
+            Preferences["reset_secure"] = true
+        }
+
        histories = SavedSet(File(ContextCompat.getDataDir(this), "histories.json"), 0)
        favorites = SavedSet(File(ContextCompat.getDataDir(this), "favorites.json"), 0)
        favoriteTags = SavedSet(File(ContextCompat.getDataDir(this), "favorites_tags.json"), Tag.parse(""))
        searchHistory = SavedSet(File(ContextCompat.getDataDir(this), "search_histories.json"), "")

-        if (Preferences["new_history"]) {
-            CoroutineScope(Dispatchers.IO).launch {
-                histories.reversed().let {
-                    histories.clear()
-                    histories.addAll(it)
-                }
-                favorites.reversed().let {
-                    favorites.clear()
-                    favorites.addAll(it)
-                }
-            }
-            Preferences["new_history"] = true
+        favoriteTags.filter { it.tag.contains('_') }.forEach {
+            favoriteTags.remove(it)
        }

+        /*
        if (BuildConfig.DEBUG)
-            FirebaseAnalytics.getInstance(this).setAnalyticsCollectionEnabled(false)
+            FirebaseAnalytics.getInstance(this).setAnalyticsCollectionEnabled(false)*/

        try {
            ProviderInstaller.installIfNeeded(this)
@@ -145,6 +160,15 @@ class Pupil : Application() {
            e.printStackTrace()
        }

+        BigImageViewer.initialize(
+            FrescoImageLoader.with(
+                this,
+                OkHttpImagePipelineConfigFactory
+                    .newBuilder(this, client)
+                    .build()
+            )
+        )
+
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            val manager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager

--- a/app/src/main/java/xyz/quaver/pupil/adapters/GalleryBlockAdapter.kt
+++ b/app/src/main/java/xyz/quaver/pupil/adapters/GalleryBlockAdapter.kt
@@ -18,342 +18,294 @@

 package xyz.quaver.pupil.adapters

+import android.content.ClipData
+import android.content.ClipboardManager
 import android.content.Context
 import android.graphics.drawable.Drawable
-import android.util.SparseBooleanArray
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import android.widget.LinearLayout
-import androidx.cardview.widget.CardView
+import android.widget.Toast
+import androidx.core.content.ContextCompat
 import androidx.recyclerview.widget.RecyclerView
-import androidx.swiperefreshlayout.widget.CircularProgressDrawable
 import androidx.vectordrawable.graphics.drawable.Animatable2Compat
 import androidx.vectordrawable.graphics.drawable.AnimatedVectorDrawableCompat
-import com.bumptech.glide.RequestManager
-import com.bumptech.glide.load.DataSource
-import com.bumptech.glide.load.engine.DiskCacheStrategy
-import com.bumptech.glide.load.engine.GlideException
-import com.bumptech.glide.request.RequestListener
-import com.bumptech.glide.request.target.Target
 import com.daimajia.swipe.SwipeLayout
 import com.daimajia.swipe.adapters.RecyclerSwipeAdapter
 import com.daimajia.swipe.interfaces.SwipeAdapterInterface
-import kotlinx.android.synthetic.main.item_galleryblock.view.*
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
-import kotlinx.coroutines.withContext
-import xyz.quaver.hitomi.getReader
+import com.github.piasy.biv.loader.ImageLoader
+import kotlinx.coroutines.*
 import xyz.quaver.io.util.getChild
-import xyz.quaver.pupil.BuildConfig
 import xyz.quaver.pupil.R
+import xyz.quaver.pupil.databinding.GalleryblockItemBinding
+import xyz.quaver.pupil.favoriteTags
 import xyz.quaver.pupil.favorites
+import xyz.quaver.pupil.hitomi.getGallery
+import xyz.quaver.pupil.hitomi.getGalleryInfo
 import xyz.quaver.pupil.types.Tag
-import xyz.quaver.pupil.ui.view.TagChip
+import xyz.quaver.pupil.ui.view.ProgressCard
 import xyz.quaver.pupil.util.Preferences
 import xyz.quaver.pupil.util.downloader.Cache
 import xyz.quaver.pupil.util.downloader.DownloadManager
 import xyz.quaver.pupil.util.wordCapitalize
-import java.util.*
-import kotlin.collections.ArrayList
-import kotlin.concurrent.schedule
+import java.io.File

-class GalleryBlockAdapter(private val glide: RequestManager, private val galleries: List<Int>) : RecyclerSwipeAdapter<RecyclerView.ViewHolder>(), SwipeAdapterInterface {
+class GalleryBlockAdapter(private val galleries: List<Int>) : RecyclerSwipeAdapter<RecyclerView.ViewHolder>(), SwipeAdapterInterface {

-    enum class ViewType {
-        NEXT,
-        GALLERY,
-        PREV
-    }
+    var updateAll = true
+    var thin: Boolean = Preferences["thin"]

-    val timer = Timer()
-
-    var isThin = false
-
-    inner class GalleryViewHolder(val view: View) : RecyclerView.ViewHolder(view) {
-        var timerTask: TimerTask? = null
-
-        private fun updateProgress(context: Context, galleryID: Int) {
-            val cache = Cache.getInstance(context, galleryID)
+    inner class GalleryViewHolder(val binding: GalleryblockItemBinding) : RecyclerView.ViewHolder(binding.root) {
+        private var galleryID: Int = 0

+        init {
            CoroutineScope(Dispatchers.Main).launch {
-                if (cache.metadata.reader == null || Preferences["cache_disable"]) {
-                    view.galleryblock_progressbar.visibility = View.GONE
-                    view.galleryblock_progress_complete.visibility = View.GONE
-                    return@launch
+                while (updateAll) {
+                    updateProgress(itemView.context)
+                    delay(1000)
+                }
+            }
+        }
+
+        private fun updateProgress(context: Context) = CoroutineScope(Dispatchers.Main).launch {
+            with(binding.galleryblockCard) {
+                val imageList = Cache.getInstance(context, galleryID).metadata.imageList
+
+                if (imageList == null) {
+                    max = 0
+                    return@with
                }

-                with(view.galleryblock_progressbar) {
-                    val imageList = cache.metadata.imageList!!
+                progress = imageList.count { it != null }
+                max = imageList.size

-                    progress = imageList.filterNotNull().size
-                    max = imageList.size
-
-                    if (visibility == View.GONE)
-                        visibility = View.VISIBLE
-
-                    if (progress == max) {
-                        val downloadManager = DownloadManager.getInstance(context)
-
-                        if (completeFlag.get(galleryID, false)) {
-                            with(view.galleryblock_progress_complete) {
-                                setImageResource(
-                                    if (downloadManager.getDownloadFolder(galleryID) != null)
-                                        R.drawable.ic_progressbar
-                                    else R.drawable.ic_progressbar_cache
-                                )
-                                visibility = View.VISIBLE
-                            }
-                        } else {
-                            with(view.galleryblock_progress_complete) {
-                                setImageDrawable(AnimatedVectorDrawableCompat.create(context,
-                                    if (downloadManager.getDownloadFolder(galleryID) != null)
-                                        R.drawable.ic_progressbar_complete
-                                    else R.drawable.ic_progressbar_complete_cache
-                                ).apply {
-                                    this?.start()
-                                })
-                                visibility = View.VISIBLE
-                            }
-                            completeFlag.put(galleryID, true)
-                        }
-                    } else
-                        view.galleryblock_progress_complete.visibility = View.INVISIBLE
+                this@GalleryViewHolder.binding.galleryblockId.setOnClickListener {
+                    (context.getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager).setPrimaryClip(
+                        ClipData.newPlainText("gallery_id", galleryID.toString())
+                    )
+                    Toast.makeText(context, R.string.copied_to_clipboard, Toast.LENGTH_SHORT).show()
                }
+
+                type = if (!imageList.contains(null)) {
+                    val downloadManager = DownloadManager.getInstance(context)
+
+                    if (downloadManager.getDownloadFolder(galleryID) == null)
+                        ProgressCard.Type.CACHE
+                    else
+                        ProgressCard.Type.DOWNLOAD
+                } else
+                    ProgressCard.Type.LOADING
            }
        }

        fun bind(galleryID: Int) {
-            val cache = Cache.getInstance(view.context, galleryID)
+            this.galleryID = galleryID
+            updateProgress(itemView.context)

-            val galleryBlock = cache.metadata.galleryBlock ?: return
+            val cache = Cache.getInstance(itemView.context, galleryID)

-            with(view) {
-                val resources = context.resources
-                val languages = resources.getStringArray(R.array.languages).map {
-                    it.split("|").let { split ->
-                        Pair(split[0], split[1])
-                    }
-                }.toMap()
+            CoroutineScope(Dispatchers.IO).launch {
+                val galleryBlock = cache.getGalleryBlock() ?: return@launch

-                val artists = galleryBlock.artists
-                val series = galleryBlock.series
+                launch(Dispatchers.Main) {
+                    val resources = itemView.context.resources
+                    val languages = resources.getStringArray(R.array.languages).map {
+                        it.split("|").let { split ->
+                            Pair(split[0], split[1])
+                        }
+                    }.toMap()

-                if (isThin)
-                    galleryblock_thumbnail.layoutParams.width = context.resources.getDimensionPixelSize(
-                        R.dimen.galleryblock_thumbnail_thin
-                    )
+                    val artists = galleryBlock.artists
+                    val series = galleryBlock.series

-                galleryblock_thumbnail.setImageDrawable(CircularProgressDrawable(context).also {
-                    it.start()
-                })
-
-                CoroutineScope(Dispatchers.IO).launch {
-                    val thumbnail = cache.getThumbnail()
-
-                    glide
-                        .load(thumbnail)
-                        .skipMemoryCache(true)
-                        .diskCacheStrategy(DiskCacheStrategy.NONE)
-                        .error(R.drawable.image_broken_variant)
-                        .listener(object: RequestListener<Drawable> {
-                            override fun onLoadFailed(
-                                e: GlideException?,
-                                model: Any?,
-                                target: Target<Drawable>?,
-                                isFirstResource: Boolean
-                            ): Boolean {
-                                Cache.getInstance(context, galleryID).let {
-                                    it.cacheFolder.getChild(".thumbnail").let { if (it.exists()) it.delete() }
-                                    it.downloadFolder?.getChild(".thumbnail")?.let { if (it.exists()) it.delete() }
-                                }
-                                return false
+                    binding.galleryblockThumbnail.apply {
+                        setOnClickListener {
+                            itemView.performClick()
+                        }
+                        setOnLongClickListener {
+                            itemView.performLongClick()
+                        }
+                        setFailureImage(ContextCompat.getDrawable(context, R.drawable.image_broken_variant))
+                        setImageLoaderCallback(object: ImageLoader.Callback {
+                            override fun onFail(error: Exception?) {
+                                Cache.delete(context, galleryID)
                            }

-                            override fun onResourceReady(
-                                resource: Drawable?,
-                                model: Any?,
-                                target: Target<Drawable>?,
-                                dataSource: DataSource?,
-                                isFirstResource: Boolean
-                            ): Boolean = false
+                            override fun onCacheHit(imageType: Int, image: File?) {}
+                            override fun onCacheMiss(imageType: Int, image: File?) {}
+                            override fun onFinish() {}
+                            override fun onProgress(progress: Int) {}
+                            override fun onStart() {}
+                            override fun onSuccess(image: File?) {}
                        })
-                        .apply {
-                            if (BuildConfig.CENSOR)
-                                override(5, 8)
-                        }.let { launch(Dispatchers.Main) { it.into(galleryblock_thumbnail) } }
-                }
-
-                if (timerTask == null)
-                    timerTask = timer.schedule(0, 1000) {
-                        updateProgress(context, galleryID)
-                    }
-
-                galleryblock_title.text = galleryBlock.title
-                with(galleryblock_artist) {
-                    text = artists.joinToString(", ") { it.wordCapitalize() }
-                    visibility = when {
-                        artists.isNotEmpty() -> View.VISIBLE
-                        else -> View.GONE
-                    }
-                }
-                with(galleryblock_series) {
-                    text =
-                        resources.getString(
-                            R.string.galleryblock_series,
-                            series.joinToString(", ") { it.wordCapitalize() })
-                    visibility = when {
-                        series.isNotEmpty() -> View.VISIBLE
-                        else -> View.GONE
-                    }
-                }
-                galleryblock_type.text = resources.getString(R.string.galleryblock_type, galleryBlock.type).wordCapitalize()
-                with(galleryblock_language) {
-                    text =
-                        resources.getString(R.string.galleryblock_language, languages[galleryBlock.language])
-                    visibility = when {
-                        galleryBlock.language.isNotEmpty() -> View.VISIBLE
-                        else -> View.GONE
-                    }
-                }
-
-                galleryblock_tag_group.removeAllViews()
-                galleryBlock.relatedTags.forEach {
-                    galleryblock_tag_group.addView(TagChip(context, Tag.parse(it)).apply {
-                        setOnClickListener { view ->
-                            for (callback in onChipClickedHandler)
-                                callback.invoke((view as TagChip).tag)
+                        ssiv?.recycle()
+                        CoroutineScope(Dispatchers.IO).launch {
+                            cache.getThumbnail().let { launch(Dispatchers.Main) {
+                                showImage(it)
+                            } }
                        }
-                    })
-                }
-
-                galleryblock_id.text = galleryBlock.id.toString()
-                galleryblock_pagecount.text = "-"
-                CoroutineScope(Dispatchers.IO).launch {
-                    val pageCount = kotlin.runCatching {
-                        getReader(galleryBlock.id).galleryInfo.files.size
-                    }.getOrNull() ?: return@launch
-                    withContext(Dispatchers.Main) {
-                        galleryblock_pagecount.text = context.getString(R.string.galleryblock_pagecount, pageCount)
                    }
-                }

-                with(galleryblock_favorite) {
-                    setImageResource(if (favorites.contains(galleryBlock.id)) R.drawable.ic_star_filled else R.drawable.ic_star_empty)
-                    setOnClickListener {
-                        when {
-                            favorites.contains(galleryBlock.id) -> {
-                                favorites.remove(galleryBlock.id)
+                    binding.galleryblockTitle.text = galleryBlock.title
+                    with(binding.galleryblockArtist) {
+                        text = artists.joinToString { it.wordCapitalize() }
+                        visibility = when {
+                            artists.isNotEmpty() -> View.VISIBLE
+                            else -> View.GONE
+                        }

-                                setImageResource(R.drawable.ic_star_empty)
+                        CoroutineScope(Dispatchers.IO).launch {
+                            val gallery = runCatching {
+                                getGallery(galleryID)
+                            }.getOrNull()
+
+                            if (gallery?.groups?.isNotEmpty() != true)
+                                return@launch
+
+                            launch(Dispatchers.Main) {
+                                text = context.getString(
+                                    R.string.galleryblock_artist_with_group,
+                                    artists.joinToString { it.wordCapitalize() },
+                                    gallery.groups.joinToString { it.wordCapitalize() }
+                                )
                            }
-                            else -> {
-                                favorites.add(galleryBlock.id)
+                        }
+                    }
+                    with(binding.galleryblockSeries) {
+                        text =
+                            resources.getString(
+                                R.string.galleryblock_series,
+                                series.joinToString(", ") { it.wordCapitalize() })
+                        visibility = when {
+                            series.isNotEmpty() -> View.VISIBLE
+                            else -> View.GONE
+                        }
+                    }
+                    binding.galleryblockType.text = resources.getString(R.string.galleryblock_type, galleryBlock.type).wordCapitalize()
+                    with(binding.galleryblockLanguage) {
+                        text =
+                            resources.getString(R.string.galleryblock_language, languages[galleryBlock.language])
+                        visibility = when {
+                            !galleryBlock.language.isNullOrEmpty() -> View.VISIBLE
+                            else -> View.GONE
+                        }
+                    }

-                                setImageDrawable(AnimatedVectorDrawableCompat.create(context, R.drawable.avd_star).apply {
-                                    this ?: return@apply
+                    with(binding.galleryblockTagGroup) {
+                        onClickListener = {
+                            onChipClickedHandler.forEach { callback ->
+                                callback.invoke(it)
+                            }
+                        }

-                                    registerAnimationCallback(object: Animatable2Compat.AnimationCallback() {
-                                        override fun onAnimationEnd(drawable: Drawable?) {
-                                            setImageResource(R.drawable.ic_star_filled)
+                        tags.clear()
+
+                        CoroutineScope(Dispatchers.IO).launch {
+                            tags.addAll(
+                                galleryBlock.relatedTags.sortedBy {
+                                    val tag = Tag.parse(it)
+
+                                    if (favoriteTags.contains(tag))
+                                        -1
+                                    else
+                                        when(Tag.parse(it).area) {
+                                            "female" -> 0
+                                            "male" -> 1
+                                            else -> 2
                                        }
-                                    })
-                                    start()
-                                })
+                                }.map {
+                                    Tag.parse(it)
+                                }
+                            )
+
+                            launch(Dispatchers.Main) {
+                                refresh()
+                            }
+                        }
+                    }
+
+                    binding.galleryblockId.text = galleryBlock.id.toString()
+                    binding.galleryblockPagecount.text = "-"
+                    CoroutineScope(Dispatchers.IO).launch {
+                        val pageCount = kotlin.runCatching {
+                            getGalleryInfo(galleryBlock.id).files.size
+                        }.getOrNull() ?: return@launch
+                        withContext(Dispatchers.Main) {
+                            binding.galleryblockPagecount.text = itemView.context.getString(R.string.galleryblock_pagecount, pageCount)
+                        }
+                    }
+
+                    with(binding.galleryblockFavorite) {
+                        setImageResource(if (favorites.contains(galleryBlock.id)) R.drawable.ic_star_filled else R.drawable.ic_star_empty)
+                        setOnClickListener {
+                            when {
+                                favorites.contains(galleryBlock.id) -> {
+                                    favorites.remove(galleryBlock.id)
+
+                                    setImageResource(R.drawable.ic_star_empty)
+                                }
+                                else -> {
+                                    favorites.add(galleryBlock.id)
+
+                                    setImageDrawable(AnimatedVectorDrawableCompat.create(context, R.drawable.avd_star).apply {
+                                        this ?: return@apply
+
+                                        registerAnimationCallback(object: Animatable2Compat.AnimationCallback() {
+                                            override fun onAnimationEnd(drawable: Drawable?) {
+                                                setImageResource(R.drawable.ic_star_filled)
+                                            }
+                                        })
+                                        start()
+                                    })
+                                }
                            }
                        }
                    }
-                }


-                // Make some views invisible to make it thinner
-                if (isThin) {
-                    galleryblock_language.visibility = View.GONE
-                    galleryblock_type.visibility = View.GONE
-                    galleryblock_tag_group.visibility = View.GONE
                }
            }
+
+            // Make some views invisible to make it thinner
+            if (thin) {
+                binding.galleryblockTagGroup.visibility = View.GONE
+            }
        }
    }
-    class NextViewHolder(view: LinearLayout) : RecyclerView.ViewHolder(view)
-    class PrevViewHolder(view: LinearLayout) : RecyclerView.ViewHolder(view)
-
-    class ViewHolderFactory {
-        companion object {
-            fun getLayoutID(type: Int): Int {
-                return when(ViewType.values()[type]) {
-                    ViewType.NEXT -> R.layout.item_next
-                    ViewType.PREV -> R.layout.item_prev
-                    ViewType.GALLERY -> R.layout.item_galleryblock
-                }
-            }
-        }
-    }
-
-    val completeFlag = SparseBooleanArray()

    val onChipClickedHandler = ArrayList<((Tag) -> Unit)>()
    var onDownloadClickedHandler: ((Int) -> Unit)? = null
    var onDeleteClickedHandler: ((Int) -> Unit)? = null

-    var showNext = false
-    var showPrev = false
-
    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
-
-        fun getViewHolder(type: Int, view: View): RecyclerView.ViewHolder {
-            return when(ViewType.values()[type]) {
-                ViewType.NEXT -> NextViewHolder(view as LinearLayout)
-                ViewType.PREV -> PrevViewHolder(view as LinearLayout)
-                ViewType.GALLERY -> GalleryViewHolder(view as CardView)
-            }
-        }
-
-        return getViewHolder(
-            viewType,
-            LayoutInflater.from(parent.context).inflate(
-                ViewHolderFactory.getLayoutID(viewType),
-                parent,
-                false
-            )
-        )
+        return GalleryViewHolder(GalleryblockItemBinding.inflate(LayoutInflater.from(parent.context), parent, false))
    }

    override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
        if (holder is GalleryViewHolder) {
-            val galleryID = galleries[position-(if (showPrev) 1 else 0)]
+            val galleryID = galleries[position]

            holder.bind(galleryID)

-            with(holder.view.galleryblock_primary) {
-                setOnClickListener {
-                    holder.view.performClick()
-                }
-                setOnLongClickListener {
-                    holder.view.performLongClick()
-                }
-            }
-
-            holder.view.galleryblock_download.setOnClickListener {
+            holder.binding.galleryblockCard.binding.download.setOnClickListener {
                onDownloadClickedHandler?.invoke(position)
            }

-            holder.view.galleryblock_delete.setOnClickListener {
+            holder.binding.galleryblockCard.binding.delete.setOnClickListener {
                onDeleteClickedHandler?.invoke(position)
            }

-            mItemManger.bindView(holder.view, position)
+            mItemManger.bindView(holder.binding.root, position)

-            holder.view.galleryblock_swipe_layout.addSwipeListener(object: SwipeLayout.SwipeListener {
+            holder.binding.galleryblockCard.binding.swipeLayout.addSwipeListener(object: SwipeLayout.SwipeListener {
                override fun onStartOpen(layout: SwipeLayout?) {
                    mItemManger.closeAllExcept(layout)

-                    holder.view.galleryblock_download.text =
-                        if (DownloadManager.getInstance(holder.view.context).isDownloading(galleryID))
-                            holder.view.context.getString(android.R.string.cancel)
+                    holder.binding.galleryblockCard.binding.download.text =
+                        if (DownloadManager.getInstance(holder.binding.root.context).isDownloading(galleryID))
+                            holder.binding.root.context.getString(android.R.string.cancel)
                        else
-                            holder.view.context.getString(R.string.main_download)
+                            holder.binding.root.context.getString(R.string.main_download)
                }

                override fun onClose(layout: SwipeLayout?) {}
@@ -365,27 +317,7 @@ class GalleryBlockAdapter(private val glide: RequestManager, private val galleri
        }
    }

-    override fun onViewDetachedFromWindow(holder: RecyclerView.ViewHolder) {
-        super.onViewDetachedFromWindow(holder)
+    override fun getItemCount() = galleries.size

-        if (holder is GalleryViewHolder) {
-            holder.timerTask?.cancel()
-            holder.timerTask = null
-        }
-    }
-
-    override fun getItemCount() =
-        galleries.size +
-        (if (showNext) 1 else 0) +
-        (if (showPrev) 1 else 0)
-
-    override fun getItemViewType(position: Int): Int {
-        return when {
-            showPrev && position == 0 -> ViewType.PREV
-            showNext && position == galleries.size+(if (showPrev) 1 else 0) -> ViewType.NEXT
-            else -> ViewType.GALLERY
-        }.ordinal
-    }
-
-    override fun getSwipeLayoutResourceId(position: Int) = R.id.galleryblock_swipe_layout
+    override fun getSwipeLayoutResourceId(position: Int) = R.id.swipe_layout
 }
--- a/app/src/main/java/xyz/quaver/pupil/adapters/MirrorAdapter.kt
+++ b/app/src/main/java/xyz/quaver/pupil/adapters/MirrorAdapter.kt
@@ -1,86 +0,0 @@
-/*
- *     Pupil, Hitomi.la viewer for Android
- *     Copyright (C) 2020  tom5079
- *
- *     This program is free software: you can redistribute it and/or modify
- *     it under the terms of the GNU General Public License as published by
- *     the Free Software Foundation, either version 3 of the License, or
- *     (at your option) any later version.
- *
- *     This program is distributed in the hope that it will be useful,
- *     but WITHOUT ANY WARRANTY; without even the implied warranty of
- *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *     GNU General Public License for more details.
- *
- *     You should have received a copy of the GNU General Public License
- *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package xyz.quaver.pupil.adapters
-
-import android.annotation.SuppressLint
-import android.content.Context
-import android.view.LayoutInflater
-import android.view.MotionEvent
-import android.view.View
-import android.view.ViewGroup
-import androidx.recyclerview.widget.RecyclerView
-import kotlinx.android.synthetic.main.item_mirrors.view.*
-import xyz.quaver.pupil.R
-import xyz.quaver.pupil.util.Preferences
-import java.util.*
-
-class MirrorAdapter(context: Context) : RecyclerView.Adapter<MirrorAdapter.ViewHolder>() {
-
-    class ViewHolder(val view: View) : RecyclerView.ViewHolder(view)
-
-    val mirrors = context.resources.getStringArray(R.array.mirrors).map {
-        it.split('|').let { split ->
-            Pair(split.first(), split.last())
-        }
-    }.toMap()
-
-    val list = mirrors.keys.toMutableList().apply {
-        Preferences.get<String>("mirrors")
-            .split(">")
-            .reversed()
-            .forEach {
-                if (this.contains(it)) {
-                    this.remove(it)
-                    this.add(0, it)
-                }
-            }
-    }
-
-    val onItemMove : ((Int, Int) -> Unit) = { from, to ->
-        Collections.swap(list, from, to)
-        notifyItemMoved(from, to)
-        onItemMoved?.invoke(list)
-    }
-    var onStartDrag : ((ViewHolder) -> Unit)? = null
-    var onItemMoved : ((List<String>) -> (Unit))? = null
-
-    @SuppressLint("ClickableViewAccessibility")
-    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
-        with(holder.view) {
-            mirror_name.text = mirrors[list.elementAt(position)]
-            mirror_button.setOnTouchListener { _, event ->
-                if (event.action == MotionEvent.ACTION_DOWN)
-                    onStartDrag?.invoke(holder)
-
-                true
-            }
-        }
-    }
-
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
-        return LayoutInflater.from(parent.context).inflate(
-            R.layout.item_mirrors, parent, false
-        ).let {
-            ViewHolder(it)
-        }
-    }
-
-    override fun getItemCount() = mirrors.size
-
-}
--- a/app/src/main/java/xyz/quaver/pupil/adapters/ReaderAdapter.kt
+++ b/app/src/main/java/xyz/quaver/pupil/adapters/ReaderAdapter.kt
@@ -18,189 +18,233 @@

 package xyz.quaver.pupil.adapters

-import android.graphics.drawable.Drawable
+import android.content.Context
+import android.graphics.drawable.Animatable
+import android.net.Uri
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.widget.ImageView
 import androidx.constraintlayout.widget.ConstraintLayout
+import androidx.core.content.ContextCompat
+import androidx.core.view.updateLayoutParams
 import androidx.recyclerview.widget.RecyclerView
-import com.bumptech.glide.Glide
-import com.bumptech.glide.load.DataSource
-import com.bumptech.glide.load.engine.DiskCacheStrategy
-import com.bumptech.glide.load.engine.GlideException
-import com.bumptech.glide.load.model.GlideUrl
-import com.bumptech.glide.load.model.LazyHeaders
-import com.bumptech.glide.request.RequestListener
-import com.bumptech.glide.request.target.Target
-import kotlinx.android.synthetic.main.item_reader.view.*
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
-import xyz.quaver.Code
-import xyz.quaver.hitomi.Reader
-import xyz.quaver.hitomi.getReferer
-import xyz.quaver.hitomi.imageUrlFromImage
-import xyz.quaver.hiyobi.createImgList
-import xyz.quaver.io.util.readBytes
-import xyz.quaver.pupil.BuildConfig
+import com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView
+import com.facebook.drawee.backends.pipeline.Fresco
+import com.facebook.drawee.controller.BaseControllerListener
+import com.facebook.drawee.drawable.ScalingUtils
+import com.facebook.drawee.interfaces.DraweeController
+import com.facebook.drawee.view.SimpleDraweeView
+import com.facebook.imagepipeline.image.ImageInfo
+import com.github.piasy.biv.view.BigImageView
+import com.github.piasy.biv.view.ImageShownCallback
+import com.github.piasy.biv.view.ImageViewFactory
+import kotlinx.coroutines.*
 import xyz.quaver.pupil.R
-import xyz.quaver.pupil.services.DownloadService
+import xyz.quaver.pupil.databinding.ReaderItemBinding
+import xyz.quaver.pupil.hitomi.GalleryInfo
 import xyz.quaver.pupil.ui.ReaderActivity
-import xyz.quaver.pupil.util.Preferences
 import xyz.quaver.pupil.util.downloader.Cache
-import java.util.*
-import kotlin.concurrent.schedule
+import java.io.File
 import kotlin.math.roundToInt

-class ReaderAdapter(private val activity: ReaderActivity,
-                    private val galleryID: Int) : RecyclerView.Adapter<ReaderAdapter.ViewHolder>() {
-
-    var reader: Reader? = null
-    val timer = Timer()
-
-    private val glide = Glide.with(activity)
+class ReaderAdapter(
+    private val activity: ReaderActivity,
+    private val galleryID: Int
+) : RecyclerView.Adapter<ReaderAdapter.ViewHolder>() {
+    var galleryInfo: GalleryInfo? = null

    var isFullScreen = false

-    var onItemClickListener : ((Int) -> (Unit))? = null
+    var onItemClickListener : (() -> (Unit))? = null

-    class ViewHolder(val view: View) : RecyclerView.ViewHolder(view)
-
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
-        return LayoutInflater.from(parent.context).inflate(
-            R.layout.item_reader, parent, false
-        ).let {
-            ViewHolder(it)
-        }
-    }
-
-    private var cache: Cache? = null
-    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
-        holder.view as ConstraintLayout
-
-        if (cache == null)
-            cache = Cache.getInstance(holder.view.context, galleryID)
-
-        if (isFullScreen) {
-            holder.view.layoutParams.height = ConstraintLayout.LayoutParams.MATCH_PARENT
-        } else {
-            holder.view.layoutParams.height = ConstraintLayout.LayoutParams.WRAP_CONTENT
-
-            (holder.view.progress_layout.layoutParams as ConstraintLayout.LayoutParams)
-                .dimensionRatio = "${reader!!.galleryInfo.files[position].width}:${reader!!.galleryInfo.files[position].height}"
-        }
-
-        holder.view.image.setOnPhotoTapListener { _, _, _ ->
-            onItemClickListener?.invoke(position)
-        }
-
-        holder.view.setOnClickListener {
-            onItemClickListener?.invoke(position)
-        }
-
-        holder.view.reader_index.text = (position+1).toString()
-
-        if (Preferences["cache_disable"]) {
-            val lowQuality: Boolean = Preferences["low_quality"]
-
-            val url = when (reader!!.code) {
-                Code.HITOMI ->
-                    GlideUrl(
-                        imageUrlFromImage(
-                            galleryID,
-                            reader!!.galleryInfo.files[position],
-                            !lowQuality
-                        )
-                    , LazyHeaders.Builder().addHeader("Referer", getReferer(galleryID)).build())
-                Code.HIYOBI ->
-                    GlideUrl(createImgList(galleryID, reader!!, lowQuality)[position].path)
-                else -> null
-            }
-            holder.view.image.post {
-                glide
-                    .load(url!!)
-                    .diskCacheStrategy(DiskCacheStrategy.NONE)
-                    .skipMemoryCache(false)
-                    .error(R.drawable.image_broken_variant)
-                    .apply {
-                        if (BuildConfig.CENSOR)
-                            override(5, 8)
-                        else
-                            override(
-                                holder.view.context.resources.displayMetrics.widthPixels,
-                                holder.view.context.resources.getDimensionPixelSize(R.dimen.reader_max_height)
-                            )
+    inner class ViewHolder(private val binding: ReaderItemBinding) : RecyclerView.ViewHolder(binding.root) {
+        init {
+            with (binding.image) {
+                setImageViewFactory(FrescoImageViewFactory().apply {
+                    updateView = { imageInfo ->
+                        binding.image.updateLayoutParams<ConstraintLayout.LayoutParams> {
+                            dimensionRatio = "${imageInfo.width}:${imageInfo.height}"
+                        }
                    }
-                    .error(R.drawable.image_broken_variant)
-                    .into(holder.view.image)
+                })
+                setImageShownCallback(object : ImageShownCallback {
+                    override fun onMainImageShown() {
+                        binding.image.mainView.let { v ->
+                            when (v) {
+                                is SubsamplingScaleImageView ->
+                                    if (!isFullScreen) binding.image.layoutParams.height = ViewGroup.LayoutParams.WRAP_CONTENT
+                            }
+                        }
+                    }
+
+                    override fun onThumbnailShown() {}
+                })
+
+                setFailureImage(ContextCompat.getDrawable(itemView.context, R.drawable.image_broken_variant))
+                setOnClickListener {
+                    onItemClickListener?.invoke()
+                }
            }
-        } else {
+
+            binding.root.setOnClickListener {
+                onItemClickListener?.invoke()
+            }
+        }
+
+        fun bind(position: Int) {
+            if (cache == null)
+                cache = Cache.getInstance(itemView.context, galleryID)
+
+            if (!isFullScreen) {
+                binding.root.setBackgroundResource(R.drawable.reader_item_boundary)
+                binding.image.updateLayoutParams<ConstraintLayout.LayoutParams> {
+                    height = 0
+                    dimensionRatio =
+                        "${galleryInfo!!.files[position].width}:${galleryInfo!!.files[position].height}"
+                }
+            } else {
+                binding.root.layoutParams.height = ViewGroup.LayoutParams.MATCH_PARENT
+                binding.image.updateLayoutParams<ConstraintLayout.LayoutParams> {
+                    height = ConstraintLayout.LayoutParams.MATCH_PARENT
+                    dimensionRatio = null
+                }
+                binding.root.background = null
+            }
+
+            binding.readerIndex.text = (position+1).toString()
+
            val image = cache!!.getImage(position)
            val progress = activity.downloader?.progress?.get(galleryID)?.get(position)

            if (progress?.isInfinite() == true && image != null) {
-                holder.view.reader_item_progressbar.visibility = View.INVISIBLE
-
-                CoroutineScope(Dispatchers.IO).launch {
-                    glide
-                        .load(image.readBytes())
-                        .diskCacheStrategy(DiskCacheStrategy.NONE)
-                        .skipMemoryCache(true)
-                        .apply {
-                            if (BuildConfig.CENSOR)
-                                override(5, 8)
-                            else
-                                override(
-                                    holder.view.context.resources.displayMetrics.widthPixels,
-                                    holder.view.context.resources.getDimensionPixelSize(R.dimen.reader_max_height)
-                                )
-                        }
-                        .error(R.drawable.image_broken_variant)
-                        .listener(object: RequestListener<Drawable> {
-                            override fun onLoadFailed(
-                                e: GlideException?,
-                                model: Any?,
-                                target: Target<Drawable>?,
-                                isFirstResource: Boolean
-                            ): Boolean {
-                                cache!!.metadata.imageList?.set(position, null)
-                                image.delete()
-                                DownloadService.cancel(holder.view.context, galleryID)
-                                DownloadService.download(holder.view.context, galleryID, true)
-                                return true
-                            }
-
-                            override fun onResourceReady(
-                                resource: Drawable?,
-                                model: Any?,
-                                target: Target<Drawable>?,
-                                dataSource: DataSource?,
-                                isFirstResource: Boolean
-                            ) = false
-                        }).let { launch(Dispatchers.Main) { it.into(holder.view.image) } }
-                }
+                binding.progressGroup.visibility = View.INVISIBLE
+                binding.image.showImage(image.uri)
            } else {
-                holder.view.reader_item_progressbar.visibility = View.VISIBLE
-
-                glide.clear(holder.view.image)
-
-                holder.view.reader_item_progressbar.progress =
+                binding.progressGroup.visibility = View.VISIBLE
+                binding.readerItemProgressbar.progress =
                    if (progress?.isInfinite() == true)
                        100
                    else
                        progress?.roundToInt() ?: 0

-                holder.view.image.setImageDrawable(null)
+                clear()

-                timer.schedule(1000) {
-                    CoroutineScope(Dispatchers.Main).launch {
-                        notifyItemChanged(position)
-                    }
+                CoroutineScope(Dispatchers.Main).launch {
+                    delay(1000)
+                    notifyItemChanged(position)
+                }
+            }
+        }
+
+        fun clear() {
+            binding.image.mainView.let {
+                when (it) {
+                    is SubsamplingScaleImageView ->
+                        it.recycle()
+                    is SimpleDraweeView ->
+                        it.controller = null
                }
            }
        }
    }

-    override fun getItemCount() = reader?.galleryInfo?.files?.size ?: 0
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        return ViewHolder(ReaderItemBinding.inflate(LayoutInflater.from(parent.context), parent, false))
+    }

+    private var cache: Cache? = null
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        holder.bind(position)
+    }
+
+    override fun getItemCount() = galleryInfo?.files?.size ?: 0
+
+    override fun onViewRecycled(holder: ViewHolder) {
+        holder.clear()
+    }
+
+}
+
+class FrescoImageViewFactory : ImageViewFactory() {
+    var updateView: ((ImageInfo) -> Unit)? = null
+
+    override fun createAnimatedImageView(
+        context: Context, imageType: Int,
+        initScaleType: Int
+    ): View {
+        val view = SimpleDraweeView(context)
+        view.hierarchy.actualImageScaleType = scaleType(initScaleType)
+        return view
+    }
+
+    override fun loadAnimatedContent(
+        view: View, imageType: Int,
+        imageFile: File
+    ) {
+        if (view is SimpleDraweeView) {
+            val controller: DraweeController = Fresco.newDraweeControllerBuilder()
+                .setUri(Uri.parse("file://" + imageFile.absolutePath))
+                .setAutoPlayAnimations(true)
+                .setControllerListener(object: BaseControllerListener<ImageInfo>() {
+                    override fun onIntermediateImageSet(id: String?, imageInfo: ImageInfo?) {
+                        imageInfo?.let { updateView?.invoke(it) }
+                    }
+
+                    override fun onFinalImageSet(id: String?, imageInfo: ImageInfo?, animatable: Animatable?) {
+                        imageInfo?.let { updateView?.invoke(it) }
+                    }
+                })
+                .build()
+            view.controller = controller
+        }
+    }
+
+    override fun createThumbnailView(
+        context: Context,
+        scaleType: ImageView.ScaleType, willLoadFromNetwork: Boolean
+    ): View {
+        return if (willLoadFromNetwork) {
+            val thumbnailView = SimpleDraweeView(context)
+            thumbnailView.hierarchy.actualImageScaleType = scaleType(scaleType)
+            thumbnailView
+        } else {
+            super.createThumbnailView(context, scaleType, false)
+        }
+    }
+
+    override fun loadThumbnailContent(view: View, thumbnail: Uri) {
+        if (view is SimpleDraweeView) {
+            val controller: DraweeController = Fresco.newDraweeControllerBuilder()
+                .setUri(thumbnail)
+                .build()
+            view.controller = controller
+        }
+    }
+
+    private fun scaleType(value: Int): ScalingUtils.ScaleType {
+        return when (value) {
+            BigImageView.INIT_SCALE_TYPE_CENTER -> ScalingUtils.ScaleType.CENTER
+            BigImageView.INIT_SCALE_TYPE_CENTER_CROP -> ScalingUtils.ScaleType.CENTER_CROP
+            BigImageView.INIT_SCALE_TYPE_CENTER_INSIDE -> ScalingUtils.ScaleType.CENTER_INSIDE
+            BigImageView.INIT_SCALE_TYPE_FIT_END -> ScalingUtils.ScaleType.FIT_END
+            BigImageView.INIT_SCALE_TYPE_FIT_START -> ScalingUtils.ScaleType.FIT_START
+            BigImageView.INIT_SCALE_TYPE_FIT_XY -> ScalingUtils.ScaleType.FIT_XY
+            BigImageView.INIT_SCALE_TYPE_FIT_CENTER -> ScalingUtils.ScaleType.FIT_CENTER
+            else -> ScalingUtils.ScaleType.FIT_CENTER
+        }
+    }
+
+    private fun scaleType(scaleType: ImageView.ScaleType): ScalingUtils.ScaleType {
+        return when (scaleType) {
+            ImageView.ScaleType.CENTER -> ScalingUtils.ScaleType.CENTER
+            ImageView.ScaleType.CENTER_CROP -> ScalingUtils.ScaleType.CENTER_CROP
+            ImageView.ScaleType.CENTER_INSIDE -> ScalingUtils.ScaleType.CENTER_INSIDE
+            ImageView.ScaleType.FIT_END -> ScalingUtils.ScaleType.FIT_END
+            ImageView.ScaleType.FIT_START -> ScalingUtils.ScaleType.FIT_START
+            ImageView.ScaleType.FIT_XY -> ScalingUtils.ScaleType.FIT_XY
+            ImageView.ScaleType.FIT_CENTER -> ScalingUtils.ScaleType.FIT_CENTER
+            else -> ScalingUtils.ScaleType.FIT_CENTER
+        }
+    }
 }
--- a/app/src/main/java/xyz/quaver/pupil/adapters/ThumbnailAdapter.kt
+++ b/app/src/main/java/xyz/quaver/pupil/adapters/ThumbnailAdapter.kt
@@ -18,32 +18,35 @@

 package xyz.quaver.pupil.adapters

+import android.net.Uri
 import android.view.ViewGroup
-import android.widget.ImageView
+import androidx.core.content.ContextCompat
 import androidx.recyclerview.widget.RecyclerView
-import com.bumptech.glide.RequestManager
-import com.bumptech.glide.load.engine.DiskCacheStrategy
-import xyz.quaver.pupil.BuildConfig
+import com.github.piasy.biv.view.BigImageView
+import xyz.quaver.pupil.R

-class ThumbnailAdapter(private val glide: RequestManager, var thumbnails: List<String>) : RecyclerView.Adapter<ThumbnailAdapter.ViewHolder>() {
+class ThumbnailAdapter(var thumbnails: List<String>) : RecyclerView.Adapter<ThumbnailAdapter.ViewHolder>() {

-    class ViewHolder(val view: ImageView) : RecyclerView.ViewHolder(view)
+    class ViewHolder(val view: BigImageView) : RecyclerView.ViewHolder(view) {
+        fun clear() {
+            view.ssiv?.recycle()
+        }
+    }

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
-        return ViewHolder(ImageView(parent.context))
+        return ViewHolder(BigImageView(parent.context).apply {
+            setFailureImage(ContextCompat.getDrawable(context, R.drawable.image_broken_variant))
+        })
    }

    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
-        glide
-            .load(thumbnails[position])
-            .diskCacheStrategy(DiskCacheStrategy.NONE)
-            .apply {
-                if (BuildConfig.CENSOR)
-                    override(5, 8)
-            }
-            .into(holder.view)
+        holder.view.showImage(Uri.parse(thumbnails[position]))
    }

    override fun getItemCount() = thumbnails.size

+    override fun onViewRecycled(holder: ViewHolder) {
+        holder.clear()
+    }
+
 }
--- a/app/src/main/java/xyz/quaver/pupil/adapters/ThumbnailPageAdapter.kt
+++ b/app/src/main/java/xyz/quaver/pupil/adapters/ThumbnailPageAdapter.kt
@@ -21,17 +21,19 @@ package xyz.quaver.pupil.adapters
 import android.view.ViewGroup
 import androidx.recyclerview.widget.GridLayoutManager
 import androidx.recyclerview.widget.RecyclerView
-import com.bumptech.glide.RequestManager
 import kotlin.math.min

-class ThumbnailPageAdapter(private val glide: RequestManager, private val thumbnails: List<String>) : RecyclerView.Adapter<ThumbnailPageAdapter.ViewHolder>() {
+class ThumbnailPageAdapter(private val thumbnails: List<String>) : RecyclerView.Adapter<ThumbnailPageAdapter.ViewHolder>() {

    class ViewHolder(val view: RecyclerView) : RecyclerView.ViewHolder(view)

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
        return ViewHolder(RecyclerView(parent.context).apply {
-            layoutManager = GridLayoutManager(parent.context, 3)
-            adapter = ThumbnailAdapter(glide, listOf())
+            val layoutManager = GridLayoutManager(parent.context, 3)
+            val adapter = ThumbnailAdapter(listOf())
+
+            this.layoutManager = layoutManager
+            this.adapter = adapter
            layoutParams = ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)
        })
    }
@@ -41,7 +43,7 @@ class ThumbnailPageAdapter(private val glide: RequestManager, private val thumbn
            thumbnails = this@ThumbnailPageAdapter.thumbnails.slice(9*position until min(9*position+9, this@ThumbnailPageAdapter.thumbnails.size))
            notifyDataSetChanged()

-            holder.view.layoutManager?.scrollToPosition(itemCount-1)
+            (holder.view.layoutManager as GridLayoutManager).scrollToPosition(8)
        }
    }

--- a/app/src/main/java/xyz/quaver/pupil/hitomi/common.kt
+++ b/app/src/main/java/xyz/quaver/pupil/hitomi/common.kt
@@ -0,0 +1,273 @@
+/*
+ *    Copyright 2019 tom5079
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+package xyz.quaver.pupil.hitomi
+
+import kotlinx.coroutines.*
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+import kotlinx.datetime.Clock.System.now
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.decodeFromString
+import kotlinx.serialization.json.Json
+import okhttp3.Call
+import okhttp3.Callback
+import okhttp3.Request
+import okhttp3.Response
+import xyz.quaver.pupil.client
+import java.io.IOException
+import java.net.URL
+import java.util.concurrent.Executors
+import kotlin.coroutines.resumeWithException
+import kotlin.time.Duration.Companion.minutes
+import kotlin.time.ExperimentalTime
+
+const val protocol = "https:"
+
+@Serializable
+data class Artist(
+    val artist: String,
+    val url: String
+)
+
+@Serializable
+data class Group(
+    val group: String,
+    val url: String
+)
+
+@Serializable
+data class Parody(
+    val parody: String,
+    val url: String
+)
+
+@Serializable
+data class Character(
+    val character: String,
+    val url: String
+)
+
+@Serializable
+data class Tag(
+    val tag: String,
+    val url: String,
+    val female: String? = null,
+    val male: String? = null
+)
+
+@Serializable
+data class Language(
+    val galleryid: String,
+    val url: String,
+    val language_localname: String,
+    val name: String
+)
+
+@Serializable
+data class GalleryInfo(
+    val id: String,
+    val title: String,
+    val japanese_title: String? = null,
+    val language: String? = null,
+    val type: String,
+    val date: String,
+    val artists: List<Artist>? = null,
+    val groups: List<Group>? = null,
+    val parodys: List<Parody>? = null,
+    val tags: List<Tag>? = null,
+    val related: List<Int> = emptyList(),
+    val languages: List<Language> = emptyList(),
+    val characters: List<Character>? = null,
+    val scene_indexes: List<Int>? = emptyList(),
+    val files: List<GalleryFiles> = emptyList()
+)
+
+val json = Json {
+    isLenient = true
+    ignoreUnknownKeys = true
+    allowSpecialFloatingPointValues = true
+    useArrayPolymorphism = true
+}
+
+typealias HeaderSetter = (Request.Builder) -> Request.Builder
+fun URL.readText(settings: HeaderSetter? = null): String {
+    val request = Request.Builder()
+        .url(this).let {
+            settings?.invoke(it) ?: it
+        }.build()
+
+    return client.newCall(request).execute().also{ if (it.code() != 200) throw IOException("CODE ${it.code()}") }.body()?.use { it.string() } ?: throw IOException()
+}
+
+fun URL.readBytes(settings: HeaderSetter? = null): ByteArray {
+    val request = Request.Builder()
+        .url(this).let {
+            settings?.invoke(it) ?: it
+        }.build()
+
+    return client.newCall(request).execute().also { if (it.code() != 200) throw IOException("CODE ${it.code()}") }.body()?.use { it.bytes() } ?: throw IOException()
+}
+
+@Suppress("EXPERIMENTAL_API_USAGE")
+fun getGalleryInfo(galleryID: Int) =
+    json.decodeFromString<GalleryInfo>(
+        URL("$protocol//$domain/galleries/$galleryID.js").readText()
+            .replace("var galleryinfo = ", "")
+    )
+
+//common.js
+const val domain = "ltn.hitomi.la"
+const val galleryblockextension = ".html"
+const val galleryblockdir = "galleryblock"
+const val nozomiextension = ".nozomi"
+
+val evaluationContext = Dispatchers.Main + Job()
+
+object gg {
+    private var lastRetrieval: Long? = null
+
+    private val mutex = Mutex()
+
+    private var mDefault = 0
+    private val mMap = mutableMapOf<Int, Int>()
+
+    private var b = ""
+
+    @OptIn(ExperimentalTime::class, ExperimentalCoroutinesApi::class)
+    private suspend fun refresh() = withContext(Dispatchers.IO) {
+        mutex.withLock {
+            if (lastRetrieval == null || (lastRetrieval!! + 60000) < System.currentTimeMillis()) {
+                val ggjs: String = suspendCancellableCoroutine { continuation ->
+                    val call = client.newCall(Request.Builder().url("https://ltn.hitomi.la/gg.js").build())
+
+                    call.enqueue(object: Callback {
+                        override fun onFailure(call: Call, e: IOException) {
+                            if (continuation.isCancelled) return
+                            continuation.resumeWithException(e)
+                        }
+
+                        override fun onResponse(call: Call, response: Response) {
+                            if (!call.isCanceled) {
+                                response.body()?.use {
+                                    continuation.resume(it.string()) {
+                                        call.cancel()
+                                    }
+                                }
+                            }
+                        }
+                    })
+
+                    continuation.invokeOnCancellation {
+                        call.cancel()
+                    }
+                }
+
+                mDefault = Regex("var o = (\\d)").find(ggjs)!!.groupValues[1].toInt()
+                val o = Regex("o = (\\d); break;").find(ggjs)!!.groupValues[1].toInt()
+
+                mMap.clear()
+                Regex("case (\\d+):").findAll(ggjs).forEach {
+                    val case = it.groupValues[1].toInt()
+                    mMap[case] = o
+                }
+
+                b = Regex("b: '(.+)'").find(ggjs)!!.groupValues[1]
+
+                lastRetrieval = System.currentTimeMillis()
+            }
+        }
+    }
+
+    suspend fun m(g: Int): Int {
+        refresh()
+
+        return mMap[g] ?: mDefault
+    }
+
+    suspend fun b(): String {
+        refresh()
+        return b
+    }
+    fun s(h: String): String {
+        val m = Regex("(..)(.)$").find(h)
+        return m!!.groupValues.let { it[2]+it[1] }.toInt(16).toString(10)
+    }
+}
+
+suspend fun subdomainFromURL(url: String, base: String? = null) : String {
+    var retval = "b"
+
+    if (!base.isNullOrBlank())
+        retval = base
+
+    val b = 16
+
+    val r = Regex("""/[0-9a-f]{61}([0-9a-f]{2})([0-9a-f])""")
+    val m = r.find(url) ?: return "a"
+
+    val g = m.groupValues.let { it[2]+it[1] }.toIntOrNull(b)
+
+    if (g != null) {
+        retval = (97+ gg.m(g)).toChar().toString() + retval
+    }
+
+    return retval
+}
+
+suspend fun urlFromUrl(url: String, base: String? = null) : String {
+    return url.replace(Regex("""//..?\.hitomi\.la/"""), "//${subdomainFromURL(url, base)}.hitomi.la/")
+}
+
+suspend fun fullPathFromHash(hash: String) : String =
+    "${gg.b()}${gg.s(hash)}/$hash"
+
+fun realFullPathFromHash(hash: String): String =
+    hash.replace(Regex("""^.*(..)(.)$"""), "$2/$1/$hash")
+
+suspend fun urlFromHash(galleryID: Int, image: GalleryFiles, dir: String? = null, ext: String? = null) : String {
+    val ext = ext ?: dir ?: image.name.takeLastWhile { it != '.' }
+    val dir = dir ?: "images"
+    return "https://a.hitomi.la/$dir/${fullPathFromHash(image.hash)}.$ext"
+}
+
+suspend fun urlFromUrlFromHash(galleryID: Int, image: GalleryFiles, dir: String? = null, ext: String? = null, base: String? = null) =
+    if (base == "tn")
+        urlFromUrl("https://a.hitomi.la/$dir/${realFullPathFromHash(image.hash)}.$ext", base)
+    else
+        urlFromUrl(urlFromHash(galleryID, image, dir, ext), base)
+
+suspend fun rewriteTnPaths(html: String) {
+    html.replace(Regex("""//tn\.hitomi\.la/[^/]+/[0-9a-f]/[0-9a-f]{2}/[0-9a-f]{64}""")) { url ->
+        runBlocking {
+            urlFromUrl(url.value, "tn")
+        }
+    }
+}
+
+suspend fun imageUrlFromImage(galleryID: Int, image: GalleryFiles, noWebp: Boolean) : String {
+    return urlFromUrlFromHash(galleryID, image, "webp", null, "a")
+//    return when {
+//        noWebp ->
+//            urlFromUrlFromHash(galleryID, image)
+////        image.hasavif != 0 ->
+////            urlFromUrlFromHash(galleryID, image, "avif", null, "a")
+//        image.haswebp != 0 ->
+//            urlFromUrlFromHash(galleryID, image, "webp", null, "a")
+//        else ->
+//            urlFromUrlFromHash(galleryID, image)
+//    }
+}
--- a/app/src/main/java/xyz/quaver/pupil/hitomi/galleries.kt
+++ b/app/src/main/java/xyz/quaver/pupil/hitomi/galleries.kt
@@ -0,0 +1,54 @@
+/*
+ *    Copyright 2019 tom5079
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+package xyz.quaver.pupil.hitomi
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class Gallery(
+    val related: List<Int>,
+    val langList: List<Pair<String, String>>,
+    val cover: String,
+    val title: String,
+    val artists: List<String>,
+    val groups: List<String>,
+    val type: String,
+    val language: String,
+    val series: List<String>,
+    val characters: List<String>,
+    val tags: List<String>,
+    val thumbnails: List<String>
+)
+
+suspend fun getGallery(galleryID: Int) : Gallery {
+    val info = getGalleryInfo(galleryID)
+
+    return Gallery(
+        info.related,
+        info.languages.map { it.name to it.galleryid },
+        urlFromUrlFromHash(galleryID, info.files.first(), "webpbigtn", "webp", "tn"),
+        info.title,
+        info.artists?.map { it.artist }.orEmpty(),
+        info.groups?.map { it.group }.orEmpty(),
+        info.type,
+        info.language.orEmpty(),
+        info.parodys?.map { it.parody }.orEmpty(),
+        info.characters?.map { it.character }.orEmpty(),
+        info.tags?.map { "${if (it.female.isNullOrEmpty()) "" else "female:"}${if (it.male.isNullOrEmpty()) "" else "male:"}${it.tag}" }.orEmpty(),
+        info.files.map { urlFromUrlFromHash(galleryID, it, "webpsmalltn", "webp", "tn") }
+    )
+}
--- a/app/src/main/java/xyz/quaver/pupil/hitomi/galleryblock.kt
+++ b/app/src/main/java/xyz/quaver/pupil/hitomi/galleryblock.kt
@@ -0,0 +1,92 @@
+/*
+ *    Copyright 2019 tom5079
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+package xyz.quaver.pupil.hitomi
+
+import kotlinx.serialization.Serializable
+import org.jsoup.Jsoup
+import java.net.URL
+import java.net.URLDecoder
+import java.nio.ByteBuffer
+import java.nio.ByteOrder
+import javax.net.ssl.HttpsURLConnection
+import kotlin.io.readText
+
+//galleryblock.js
+fun fetchNozomi(area: String? = null, tag: String = "index", language: String = "all", start: Int = -1, count: Int = -1) : Pair<List<Int>, Int> {
+    val url = when(area) {
+        null -> "$protocol//$domain/$tag-$language$nozomiextension"
+        else -> "$protocol//$domain/$area/$tag-$language$nozomiextension"
+    }
+
+    with(URL(url).openConnection() as HttpsURLConnection) {
+        requestMethod = "GET"
+
+        if (start != -1 && count != -1) {
+            val startByte = start*4
+            val endByte = (start+count)*4-1
+
+            setRequestProperty("Range", "bytes=$startByte-$endByte")
+        }
+
+        connect()
+
+        val totalItems = getHeaderField("Content-Range")
+            .replace(Regex("^[Bb]ytes \\d+-\\d+/"), "").toInt() / 4
+
+        val nozomi = ArrayList<Int>()
+
+        val arrayBuffer = ByteBuffer
+            .wrap(inputStream.readBytes())
+            .order(ByteOrder.BIG_ENDIAN)
+
+        while (arrayBuffer.hasRemaining())
+            nozomi.add(arrayBuffer.int)
+
+        return Pair(nozomi, totalItems)
+    }
+}
+
+@Serializable
+data class GalleryBlock(
+    val id: Int,
+    val galleryUrl: String,
+    val thumbnails: List<String>,
+    val title: String,
+    val artists: List<String>,
+    val series: List<String>,
+    val type: String,
+    val language: String,
+    val relatedTags: List<String>,
+    val groups: List<String> = emptyList()
+)
+
+suspend fun getGalleryBlock(galleryID: Int) : GalleryBlock {
+    val info = getGalleryInfo(galleryID)
+
+    return GalleryBlock(
+        galleryID,
+        "",
+        listOf(urlFromUrlFromHash(galleryID, info.files.first(), "webpbigtn", "webp", "tn")),
+        info.title,
+        info.artists?.map { it.artist }.orEmpty(),
+        info.parodys?.map { it.parody }.orEmpty(),
+        info.type,
+        info.language.orEmpty(),
+        info.tags?.map { "${if (it.female.isNullOrEmpty()) "" else "female:"}${if (it.male.isNullOrEmpty()) "" else "male:"}${it.tag}" }.orEmpty(),
+        info.groups?.map { it.group }.orEmpty()
+    )
+}
--- a/app/src/main/java/xyz/quaver/pupil/hitomi/reader.kt
+++ b/app/src/main/java/xyz/quaver/pupil/hitomi/reader.kt
@@ -0,0 +1,38 @@
+/*
+ *    Copyright 2019 tom5079
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+package xyz.quaver.pupil.hitomi
+
+import kotlinx.serialization.Serializable
+import xyz.quaver.pupil.hitomi.GalleryInfo
+import xyz.quaver.pupil.hitomi.getGalleryInfo
+
+@Serializable
+data class GalleryFiles(
+    val width: Int,
+    val hash: String,
+    val haswebp: Int = 0,
+    val name: String,
+    val height: Int,
+    val hasavif: Int = 0,
+    val hasavifsmalltn: Int? = 0
+)
+
+//Set header `Referer` to reader url to avoid 403 error
+@Deprecated("", replaceWith = ReplaceWith("getGalleryInfo"))
+fun getReader(galleryID: Int) : GalleryInfo {
+   return getGalleryInfo(galleryID)
+}
--- a/app/src/main/java/xyz/quaver/pupil/hitomi/results.kt
+++ b/app/src/main/java/xyz/quaver/pupil/hitomi/results.kt
@@ -0,0 +1,87 @@
+/*
+ *    Copyright 2019 tom5079
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+package xyz.quaver.pupil.hitomi
+
+import kotlinx.coroutines.async
+import kotlinx.coroutines.coroutineScope
+import java.util.*
+
+suspend fun doSearch(query: String, sortByPopularity: Boolean = false) : Set<Int> = coroutineScope {
+    val terms = query
+        .trim()
+        .replace(Regex("""^\?"""), "")
+        .lowercase()
+        .split(Regex("\\s+"))
+        .map {
+            it.replace('_', ' ')
+        }
+
+    val positiveTerms = LinkedList<String>()
+    val negativeTerms = LinkedList<String>()
+
+    for (term in terms) {
+        if (term.matches(Regex("^-.+")))
+            negativeTerms.push(term.replace(Regex("^-"), ""))
+        else if (term.isNotBlank())
+            positiveTerms.push(term)
+    }
+
+    val positiveResults = positiveTerms.map {
+        async {
+            runCatching {
+                getGalleryIDsForQuery(it)
+            }.getOrElse { emptySet() }
+        }
+    }
+
+    val negativeResults = negativeTerms.mapIndexed { index, it ->
+        async {
+            runCatching {
+                getGalleryIDsForQuery(it)
+            }.getOrElse { emptySet() }
+        }
+    }
+
+    val results = when {
+        sortByPopularity -> getGalleryIDsFromNozomi(null, "popular", "all")
+        positiveTerms.isEmpty() -> getGalleryIDsFromNozomi(null, "index", "all")
+        else -> emptySet()
+    }.toMutableSet()
+
+    fun filterPositive(newResults: Set<Int>) {
+        when {
+            results.isEmpty() -> results.addAll(newResults)
+            else -> results.retainAll(newResults)
+        }
+    }
+
+    fun filterNegative(newResults: Set<Int>) {
+        results.removeAll(newResults)
+    }
+
+    //positive results
+    positiveResults.forEach {
+        filterPositive(it.await())
+    }
+
+    //negative results
+    negativeResults.forEachIndexed { index, it ->
+        filterNegative(it.await())
+    }
+
+    results
+}
--- a/app/src/main/java/xyz/quaver/pupil/hitomi/search.kt
+++ b/app/src/main/java/xyz/quaver/pupil/hitomi/search.kt
@@ -0,0 +1,328 @@
+/*
+ *    Copyright 2019 tom5079
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+package xyz.quaver.pupil.hitomi
+
+import okhttp3.Request
+import xyz.quaver.pupil.client
+import java.net.URL
+import java.nio.ByteBuffer
+import java.nio.ByteOrder
+import java.security.MessageDigest
+import kotlin.math.min
+
+//searchlib.js
+const val separator = "-"
+const val extension = ".html"
+const val index_dir = "tagindex"
+const val galleries_index_dir = "galleriesindex"
+const val max_node_size = 464
+const val B = 16
+const val compressed_nozomi_prefix = "n"
+
+val tag_index_version: String by lazy { getIndexVersion("tagindex") }
+val galleries_index_version: String by lazy { getIndexVersion("galleriesindex") }
+
+fun sha256(data: ByteArray) : ByteArray {
+    return MessageDigest.getInstance("SHA-256").digest(data)
+}
+
+@OptIn(ExperimentalUnsignedTypes::class)
+fun hashTerm(term: String) : UByteArray {
+    return sha256(term.toByteArray()).toUByteArray().sliceArray(0 until 4)
+}
+
+fun sanitize(input: String) : String {
+    return input.replace(Regex("[/#]"), "")
+}
+
+fun getIndexVersion(name: String) =
+        URL("$protocol//$domain/$name/version?_=${System.currentTimeMillis()}").readText()
+
+//search.js
+fun getGalleryIDsForQuery(query: String) : Set<Int> {
+    query.replace("_", " ").let {
+        if (it.indexOf(':') > -1) {
+            val sides = it.split(":")
+            val ns = sides[0]
+            var tag = sides[1]
+
+            var area : String? = ns
+            var language = "all"
+            when (ns) {
+                "female", "male" -> {
+                    area = "tag"
+                    tag = it
+                }
+                "language" -> {
+                    area = null
+                    language = tag
+                    tag = "index"
+                }
+            }
+
+            return getGalleryIDsFromNozomi(area, tag, language)
+        }
+
+        val key = hashTerm(it)
+        val field = "galleries"
+
+        val node = getNodeAtAddress(field, 0) ?: return emptySet()
+
+        val data = bSearch(field, key, node)
+
+        if (data != null)
+            return getGalleryIDsFromData(data)
+
+        return emptySet()
+    }
+}
+
+fun getSuggestionsForQuery(query: String) : List<Suggestion> {
+    query.replace('_', ' ').let {
+        var field = "global"
+        var term = it
+
+        if (term.indexOf(':') > -1) {
+            val sides = it.split(':')
+            field = sides[0]
+            term = sides[1]
+        }
+
+        val key = hashTerm(term)
+        val node = getNodeAtAddress(field, 0) ?: return emptyList()
+        val data = bSearch(field, key, node)
+
+        if (data != null)
+            return getSuggestionsFromData(field, data)
+
+        return emptyList()
+    }
+}
+
+data class Suggestion(val s: String, val t: Int, val u: String, val n: String)
+fun getSuggestionsFromData(field: String, data: Pair<Long, Int>) : List<Suggestion> {
+    val url = "$protocol//$domain/$index_dir/$field.$tag_index_version.data"
+    val (offset, length) = data
+    if (length > 10000 || length <= 0)
+        throw Exception("length $length is too long")
+
+    val inbuf = getURLAtRange(url, offset.until(offset+length))
+
+    val suggestions = ArrayList<Suggestion>()
+
+    val buffer = ByteBuffer
+        .wrap(inbuf)
+        .order(ByteOrder.BIG_ENDIAN)
+    val numberOfSuggestions = buffer.int
+
+    if (numberOfSuggestions > 100 || numberOfSuggestions <= 0)
+        throw Exception("number of suggestions $numberOfSuggestions is too long")
+
+    for (i in 0.until(numberOfSuggestions)) {
+        var top = buffer.int
+
+        val ns = inbuf.sliceArray(buffer.position().until(buffer.position()+top)).toString(charset("UTF-8"))
+        buffer.position(buffer.position()+top)
+
+        top = buffer.int
+
+        val tag = inbuf.sliceArray(buffer.position().until(buffer.position()+top)).toString(charset("UTF-8"))
+        buffer.position(buffer.position()+top)
+
+        val count = buffer.int
+
+        val tagname = sanitize(tag)
+        val u =
+                when(ns) {
+                    "female", "male" -> "/tag/$ns:$tagname${separator}1$extension"
+                    "language" -> "/index-$tagname${separator}1$extension"
+                    else -> "/$ns/$tagname${separator}all${separator}1$extension"
+                }
+
+        suggestions.add(Suggestion(tag, count, u, ns))
+    }
+
+    return suggestions
+}
+
+fun getGalleryIDsFromNozomi(area: String?, tag: String, language: String) : Set<Int> {
+    val nozomiAddress =
+            when(area) {
+                null -> "$protocol//$domain/$compressed_nozomi_prefix/$tag-$language$nozomiextension"
+                else -> "$protocol//$domain/$compressed_nozomi_prefix/$area/$tag-$language$nozomiextension"
+            }
+
+    val bytes = try {
+        URL(nozomiAddress).readBytes()
+    } catch (e: Exception) {
+        return emptySet()
+    }
+
+    val nozomi = mutableSetOf<Int>()
+
+    val arrayBuffer = ByteBuffer
+        .wrap(bytes)
+        .order(ByteOrder.BIG_ENDIAN)
+
+    while (arrayBuffer.hasRemaining())
+        nozomi.add(arrayBuffer.int)
+
+    return nozomi
+}
+
+fun getGalleryIDsFromData(data: Pair<Long, Int>) : Set<Int> {
+    val url = "$protocol//$domain/$galleries_index_dir/galleries.$galleries_index_version.data"
+    val (offset, length) = data
+    if (length > 100000000 || length <= 0)
+        throw Exception("length $length is too long")
+
+    val inbuf = getURLAtRange(url, offset.until(offset+length))
+
+    val galleryIDs = mutableSetOf<Int>()
+
+    val buffer = ByteBuffer
+        .wrap(inbuf)
+        .order(ByteOrder.BIG_ENDIAN)
+
+    val numberOfGalleryIDs = buffer.int
+
+    val expectedLength = numberOfGalleryIDs*4+4
+
+    if (numberOfGalleryIDs > 10000000 || numberOfGalleryIDs <= 0)
+        throw Exception("number_of_galleryids $numberOfGalleryIDs is too long")
+    else if (inbuf.size != expectedLength)
+        throw Exception("inbuf.byteLength ${inbuf.size} != expected_length $expectedLength")
+
+    for (i in 0.until(numberOfGalleryIDs))
+        galleryIDs.add(buffer.int)
+
+    return galleryIDs
+}
+
+fun getNodeAtAddress(field: String, address: Long) : Node? {
+    val url =
+            when(field) {
+                "galleries" -> "$protocol//$domain/$galleries_index_dir/galleries.$galleries_index_version.index"
+                "languages" -> "$protocol//$domain/$galleries_index_dir/languages.$galleries_index_version.index"
+                "nozomiurl" -> "$protocol//$domain/$galleries_index_dir/nozomiurl.$galleries_index_version.index"
+                else -> "$protocol//$domain/$index_dir/$field.$tag_index_version.index"
+            }
+
+    val nodedata = getURLAtRange(url, address.until(address+ max_node_size))
+
+    return decodeNode(nodedata)
+}
+
+fun getURLAtRange(url: String, range: LongRange) : ByteArray {
+    val request = Request.Builder()
+        .url(url)
+        .header("Range", "bytes=${range.first}-${range.last}")
+        .build()
+    
+    return client.newCall(request).execute().body()?.use { it.bytes() } ?: byteArrayOf()
+}
+
+@OptIn(ExperimentalUnsignedTypes::class)
+data class Node(val keys: List<UByteArray>, val datas: List<Pair<Long, Int>>, val subNodeAddresses: List<Long>)
+@OptIn(ExperimentalUnsignedTypes::class)
+fun decodeNode(data: ByteArray) : Node {
+    val buffer = ByteBuffer
+        .wrap(data)
+        .order(ByteOrder.BIG_ENDIAN)
+
+    val uData = data.toUByteArray()
+
+    val numberOfKeys = buffer.int
+    val keys = ArrayList<UByteArray>()
+
+    for (i in 0.until(numberOfKeys)) {
+        val keySize = buffer.int
+
+        if (keySize == 0 || keySize > 32)
+            throw Exception("fatal: !keySize || keySize > 32")
+
+        keys.add(uData.sliceArray(buffer.position().until(buffer.position()+keySize)))
+        buffer.position(buffer.position()+keySize)
+    }
+
+    val numberOfDatas = buffer.int
+    val datas = ArrayList<Pair<Long, Int>>()
+
+    for (i in 0.until(numberOfDatas)) {
+        val offset = buffer.long
+        val length = buffer.int
+
+        datas.add(Pair(offset, length))
+    }
+
+    val numberOfSubNodeAddresses = B +1
+    val subNodeAddresses = ArrayList<Long>()
+
+    for (i in 0.until(numberOfSubNodeAddresses)) {
+        val subNodeAddress = buffer.long
+        subNodeAddresses.add(subNodeAddress)
+    }
+
+    return Node(keys, datas, subNodeAddresses)
+}
+
+@OptIn(ExperimentalUnsignedTypes::class)
+fun bSearch(field: String, key: UByteArray, node: Node) : Pair<Long, Int>? {
+    fun compareArrayBuffers(dv1: UByteArray, dv2: UByteArray) : Int {
+        val top = min(dv1.size, dv2.size)
+
+        for (i in 0.until(top)) {
+            if (dv1[i] < dv2[i])
+                return -1
+            else if (dv1[i] > dv2[i])
+                return 1
+        }
+
+        return 0
+    }
+
+    fun locateKey(key: UByteArray, node: Node) : Pair<Boolean, Int> {
+        for (i in node.keys.indices) {
+            val cmpResult = compareArrayBuffers(key, node.keys[i])
+
+            if (cmpResult <= 0)
+                return Pair(cmpResult==0, i)
+        }
+
+        return Pair(false, node.keys.size)
+    }
+
+    fun isLeaf(node: Node) : Boolean {
+        for (subnode in node.subNodeAddresses)
+            if (subnode != 0L)
+                return false
+
+        return true
+    }
+
+    if (node.keys.isEmpty())
+        return null
+
+    val (there, where) = locateKey(key, node)
+    if (there)
+        return node.datas[where]
+    else if (isLeaf(node))
+        return null
+
+    val nextNode = getNodeAtAddress(field, node.subNodeAddresses[where]) ?: return null
+    return bSearch(field, key, nextNode)
+}
--- a/app/src/main/java/xyz/quaver/pupil/receiver/UpdateBroadcastReceiver.kt
+++ b/app/src/main/java/xyz/quaver/pupil/receiver/UpdateBroadcastReceiver.kt
@@ -24,6 +24,7 @@ import android.content.BroadcastReceiver
 import android.content.Context
 import android.content.Intent
 import android.net.Uri
+import android.os.Build
 import android.webkit.MimeTypeMap
 import androidx.core.app.NotificationCompat
 import androidx.core.app.NotificationManagerCompat
@@ -54,13 +55,15 @@ class UpdateBroadcastReceiver : BroadcastReceiver() {

                val uri = downloadManager.query(query).use { cursor ->
                    if (cursor.moveToFirst()) {
-                        cursor.getString(cursor.getColumnIndex(DownloadManager.COLUMN_LOCAL_URI)).let {
+                        cursor.getString(cursor.getColumnIndex(DownloadManager.COLUMN_LOCAL_URI))?.let {
                            val uri = Uri.parse(it)

                            when (uri.scheme) {
                                "file" ->
-                                    FileProvider.getUriForFile(context, context.applicationContext.packageName + ".provider", File(uri.path!!)
-                                    )
+                                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
+                                        FileProvider.getUriForFile(context, context.applicationContext.packageName + ".provider", File(uri.path!!))
+                                    else
+                                        uri
                                "content" -> uri
                                else -> null
                            }
@@ -73,10 +76,10 @@ class UpdateBroadcastReceiver : BroadcastReceiver() {

                val notificationManager = NotificationManagerCompat.from(context)

-                val pendingIntent = PendingIntent.getActivity(context, 0, Intent(Intent.ACTION_VIEW).apply {
+                val pendingIntent = PendingIntent.getActivity(context, System.currentTimeMillis().toInt(), Intent(Intent.ACTION_VIEW).apply {
                    flags = Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_GRANT_READ_URI_PERMISSION or Intent.FLAG_ACTIVITY_NEW_TASK
                    setDataAndType(uri, MimeTypeMap.getSingleton().getMimeTypeFromExtension("apk"))
-                }, 0)
+                }, if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) PendingIntent.FLAG_IMMUTABLE else 0)

                val notification = NotificationCompat.Builder(context, "update")
                    .setSmallIcon(android.R.drawable.stat_sys_download_done)
--- a/app/src/main/java/xyz/quaver/pupil/services/DownloadService.kt
+++ b/app/src/main/java/xyz/quaver/pupil/services/DownloadService.kt
@@ -23,11 +23,14 @@ import android.app.PendingIntent
 import android.app.Service
 import android.content.Context
 import android.content.Intent
-import android.util.SparseArray
+import android.content.pm.ServiceInfo
+import android.os.Build
+import android.util.Log
 import androidx.core.app.NotificationCompat
 import androidx.core.app.NotificationManagerCompat
 import androidx.core.app.TaskStackBuilder
 import androidx.core.content.ContextCompat
+import com.google.firebase.crashlytics.FirebaseCrashlytics
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
@@ -37,17 +40,15 @@ import okhttp3.Callback
 import okhttp3.Response
 import okhttp3.ResponseBody
 import okio.*
-import xyz.quaver.pupil.PupilInterceptor
-import xyz.quaver.pupil.R
-import xyz.quaver.pupil.client
-import xyz.quaver.pupil.interceptors
+import xyz.quaver.pupil.*
 import xyz.quaver.pupil.ui.ReaderActivity
+import xyz.quaver.pupil.util.*
 import xyz.quaver.pupil.util.downloader.Cache
 import xyz.quaver.pupil.util.downloader.DownloadManager
-import xyz.quaver.pupil.util.ellipsize
-import xyz.quaver.pupil.util.normalizeID
-import xyz.quaver.pupil.util.requestBuilders
 import java.io.IOException
+import java.util.concurrent.ConcurrentHashMap
+import kotlin.math.ceil
+import kotlin.math.log10

 private typealias ProgressListener = (DownloadService.Tag, Long, Long, Boolean) -> Unit
 class DownloadService : Service() {
@@ -66,7 +67,7 @@ class DownloadService : Service() {
            .setOngoing(true)
    }

-    private val notification = SparseArray<NotificationCompat.Builder?>()
+    private val notification = ConcurrentHashMap<Int, NotificationCompat.Builder?>()

    private fun initNotification(galleryID: Int) {
        val intent = Intent(this, ReaderActivity::class.java)
@@ -74,7 +75,7 @@ class DownloadService : Service() {

        val pendingIntent = TaskStackBuilder.create(this).run {
            addNextIntentWithParentStack(intent)
-            getPendingIntent(galleryID, PendingIntent.FLAG_UPDATE_CURRENT)
+            getPendingIntent(galleryID, PendingIntent.FLAG_UPDATE_CURRENT or if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) PendingIntent.FLAG_MUTABLE else 0)
        }
        val action =
            NotificationCompat.Action.Builder(0, getText(android.R.string.cancel),
@@ -84,10 +85,10 @@ class DownloadService : Service() {
                    Intent(this, DownloadService::class.java)
                        .putExtra(KEY_COMMAND, COMMAND_CANCEL)
                        .putExtra(KEY_ID, galleryID),
-                    PendingIntent.FLAG_UPDATE_CURRENT),
+                    PendingIntent.FLAG_UPDATE_CURRENT or if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) PendingIntent.FLAG_MUTABLE else 0),
            ).build()

-        notification.put(galleryID, NotificationCompat.Builder(this, "download").apply {
+        notification[galleryID] = NotificationCompat.Builder(this, "download").apply {
            setContentTitle(getString(R.string.reader_loading))
            setContentText(getString(R.string.reader_notification_text))
            setSmallIcon(R.drawable.ic_notification)
@@ -95,18 +96,20 @@ class DownloadService : Service() {
            addAction(action)
            setProgress(0, 0, true)
            setOngoing(true)
-        })
+        }

        notify(galleryID)
    }

-    @SuppressLint("RestrictedApi")
+    @SuppressLint("RestrictedApi", "MissingPermission")
    private fun notify(galleryID: Int) {
        val max = progress[galleryID]?.size ?: 0
        val progress = progress[galleryID]?.count { it == Float.POSITIVE_INFINITY } ?: 0

        val notification = notification[galleryID] ?: return

+        if (!checkNotificationEnabled(this)) return
+
        if (isCompleted(galleryID)) {
            notification
                .setContentText(getString(R.string.reader_notification_complete))
@@ -120,7 +123,7 @@ class DownloadService : Service() {
                .setProgress(max, progress, false)
                .setContentText("$progress/$max")

-        if (DownloadManager.getInstance(this).getDownloadFolder(galleryID) != null)
+        if (DownloadManager.getInstance(this).getDownloadFolder(galleryID) != null || galleryID == priority)
            notification.let { notificationManager.notify(galleryID, it.build()) }
        else
            notificationManager.cancel(galleryID)
@@ -167,15 +170,27 @@ class DownloadService : Service() {

    private val interceptor: PupilInterceptor = { chain ->
        val request = chain.request()
-        var response = chain.proceed(request)

-        var retry = 5
-        while (!response.isSuccessful && retry > 0) {
-            response = chain.proceed(request)
-            retry--
+        var response = kotlin.runCatching {
+            chain.proceed(request)
+        }.getOrNull()
+        var limit = 10
+
+        while (response?.isSuccessful != true) {
+            if (response?.code() == 503) {
+                Thread.sleep(200)
+            } else if (--limit < 0)
+                break
+
+            response = kotlin.runCatching {
+                chain.proceed(request)
+            }.getOrNull()
        }

-        response.newBuilder()
+        if (response == null)
+            response = chain.proceed(request)
+
+        response!!.newBuilder()
            .body(response.body()?.let {
                ProgressResponseBody(request.tag(), it, progressListener)
            }).build()
@@ -194,47 +209,48 @@ class DownloadService : Service() {
    *  0 <= value < 100 -> Download in progress
    *  Float.POSITIVE_INFINITY -> Download completed
    */
-    val progress = SparseArray<MutableList<Float>?>()
+    val progress = ConcurrentHashMap<Int, MutableList<Float>>()
+    var priority = 0

    fun isCompleted(galleryID: Int) = progress[galleryID]?.toList()?.all { it == Float.POSITIVE_INFINITY } == true

    private val callback = object: Callback {

        override fun onFailure(call: Call, e: IOException) {
+            Log.d("PUPILD", "ONFAILURE ${call.request().tag()}, ${e}")
+            FirebaseCrashlytics.getInstance().recordException(e)
+
            if (e.message?.contains("cancel", true) == false) {
                val galleryID = (call.request().tag() as Tag).galleryID
-
-                // Retry
-                cancel(galleryID)
-                download(galleryID)
            }
        }

        override fun onResponse(call: Call, response: Response) {
+            Log.d("PUPILD", "ONRESPONSE ${call.request().tag()}")
            val (galleryID, index, startId) = call.request().tag() as Tag
            val ext = call.request().url().encodedPath().split('.').last()

-            kotlin.runCatching {
-                val image = response.also { if (it.code() != 200) throw IOException() }.body()?.use { it.bytes() } ?: throw Exception()
+            CoroutineScope(Dispatchers.IO).launch {
+                runCatching {
+                    val image = response.also { if (it.code() != 200) throw IOException( "$galleryID $index ${response.request().url()} CODE ${it.code()}" ) }.body()?.use { it.bytes() } ?: throw Exception("Response null")
+                    val padding = ceil(progress[galleryID]?.size?.let { log10(it.toFloat()) } ?: 0F).toInt()

-                CoroutineScope(Dispatchers.IO).launch {
-                    kotlin.runCatching {
-                        Cache.getInstance(this@DownloadService, galleryID).putImage(index, "$index.$ext", image)
-                    }.onSuccess {
-                        progress[galleryID]?.set(index, Float.POSITIVE_INFINITY)
-                        notify(galleryID)
+                    Cache.getInstance(this@DownloadService, galleryID)
+                        .putImage(index, "${index.toString().padStart(padding, '0')}.$ext", image)

-                        if (isCompleted(galleryID)) {
-                            if (DownloadManager.getInstance(this@DownloadService)
-                                    .getDownloadFolder(galleryID) != null)
-                                Cache.getInstance(this@DownloadService, galleryID).moveToDownload()
+                    progress[galleryID]?.set(index, Float.POSITIVE_INFINITY)
+                    notify(galleryID)

-                            startId?.let { stopSelf(it) }
-                        }
-                    }.onFailure {
-                        cancel(galleryID)
-                        download(galleryID)
+                    if (isCompleted(galleryID)) {
+                        if (DownloadManager.getInstance(this@DownloadService)
+                                .getDownloadFolder(galleryID) != null
+                        )
+                            Cache.getInstance(this@DownloadService, galleryID).moveToDownload()
+
+                        startId?.let { stopSelf(it) }
                    }
+                }.onFailure {
+                    FirebaseCrashlytics.getInstance().recordException(it)
                }
            }
        }
@@ -285,41 +301,50 @@ class DownloadService : Service() {
    fun delete(galleryID: Int, startId: Int? = null) = CoroutineScope(Dispatchers.IO).launch {
        cancel(galleryID)
        DownloadManager.getInstance(this@DownloadService).deleteDownloadFolder(galleryID)
-        Cache.delete(galleryID)
+        Cache.delete(this@DownloadService, galleryID)

        startId?.let { stopSelf(it) }
    }

    fun download(galleryID: Int, priority: Boolean = false, startId: Int? = null): Job = CoroutineScope(Dispatchers.IO).launch {
-        if (progress.indexOfKey(galleryID) >= 0)
-            cancel(galleryID)
+        if (DownloadManager.getInstance(this@DownloadService).isDownloading(galleryID))
+            return@launch
+
+        cleanCache(this@DownloadService)

        val cache = Cache.getInstance(this@DownloadService, galleryID)

        initNotification(galleryID)

-        val reader = cache.getReader()
+        val galleryInfo = cache.getGalleryInfo()

        // Gallery doesn't exist
-        if (reader == null) {
+        if (galleryInfo == null) {
            delete(galleryID)
-            progress.put(galleryID, null)
+            progress[galleryID] = mutableListOf()
            return@launch
        }

-        progress.put(galleryID, MutableList(reader.galleryInfo.files.size) { 0F })
+        histories.add(galleryID)

-        cache.metadata.imageList?.forEachIndexed { index, image ->
-            progress[galleryID]?.set(index, if (image != null) Float.POSITIVE_INFINITY else 0F)
+        progress[galleryID] = MutableList(galleryInfo.files.size) { 0F }
+
+        cache.metadata.imageList?.let {
+            it.forEachIndexed { index, image ->
+                progress[galleryID]?.set(index, if (image != null) Float.POSITIVE_INFINITY else 0F)
+            }
        }

        if (isCompleted(galleryID)) {
+            if (DownloadManager.getInstance(this@DownloadService).getDownloadFolder(galleryID) != null)
+                Cache.getInstance(this@DownloadService, galleryID).moveToDownload()
+
            notificationManager.cancel(galleryID)
            startId?.let { stopSelf(it) }
            return@launch
        }

-        notification[galleryID]?.setContentTitle(reader.galleryInfo.title?.ellipsize(30))
+        notification[galleryID]?.setContentTitle(galleryInfo.title?.ellipsize(30))
        notify(galleryID)

        val queued = mutableSetOf<Int>()
@@ -333,8 +358,8 @@ class DownloadService : Service() {
            }
        }

-        reader.requestBuilders.forEachIndexed { index, it ->
-            if (progress[galleryID]?.get(index)?.isInfinite() != true) {
+        galleryInfo.getRequestBuilders().forEachIndexed { index, it ->
+            if (progress[galleryID]?.get(index)?.isInfinite() == false) {
                val request = it.tag(Tag(galleryID, index, startId)).build()
                client.newCall(request).enqueue(callback)
            }
@@ -381,7 +406,11 @@ class DownloadService : Service() {
    }

    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
-        startForeground(R.id.downloader_notification_id, serviceNotification.build())
+        if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.TIRAMISU) {
+            startForeground(R.id.downloader_notification_id, serviceNotification.build())
+        } else {
+            startForeground(R.id.downloader_notification_id, serviceNotification.build(), ServiceInfo.FOREGROUND_SERVICE_TYPE_SPECIAL_USE)
+        }

        when (intent?.getStringExtra(KEY_COMMAND)) {
            COMMAND_DOWNLOAD -> intent.getIntExtra(KEY_ID, -1).let { if (it > 0)
@@ -402,7 +431,11 @@ class DownloadService : Service() {
    override fun onBind(p0: Intent?) = binder

    override fun onCreate() {
-        startForeground(R.id.downloader_notification_id, serviceNotification.build())
+        if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.TIRAMISU) {
+            startForeground(R.id.downloader_notification_id, serviceNotification.build())
+        } else {
+            startForeground(R.id.downloader_notification_id, serviceNotification.build(), ServiceInfo.FOREGROUND_SERVICE_TYPE_SPECIAL_USE)
+        }
        interceptors[Tag::class] = interceptor
    }

--- a/app/src/main/java/xyz/quaver/pupil/types/SendLogException.kt
+++ b/app/src/main/java/xyz/quaver/pupil/types/SendLogException.kt
@@ -1,6 +1,6 @@
 /*
 *     Pupil, Hitomi.la viewer for Android
- *     Copyright (C) 2020  tom5079
+ *     Copyright (C) 2022  tom5079
 *
 *     This program is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
@@ -16,26 +16,7 @@
 *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

-package xyz.quaver.pupil
+package xyz.quaver.pupil.types

-import android.content.Context
-import com.bumptech.glide.Glide
-import com.bumptech.glide.Registry
-import com.bumptech.glide.annotation.GlideModule
-import com.bumptech.glide.integration.okhttp3.OkHttpUrlLoader
-import com.bumptech.glide.load.model.GlideUrl
-import com.bumptech.glide.module.AppGlideModule
-import java.io.InputStream
-
-@GlideModule
-class PupilGlideModule : AppGlideModule() {
-
-    override fun registerComponents(context: Context, glide: Glide, registry: Registry) {
-        registry.append(
-            GlideUrl::class.java,
-            InputStream::class.java,
-            OkHttpUrlLoader.Factory(client)
-        )
-    }
-
-}
+class SendLogException : Exception()
+class JavascriptException(message: String?) : Exception(message)
--- a/app/src/main/java/xyz/quaver/pupil/types/Suggestions.kt
+++ b/app/src/main/java/xyz/quaver/pupil/types/Suggestions.kt
@@ -18,36 +18,33 @@

 package xyz.quaver.pupil.types

-import com.arlib.floatingsearchview.suggestions.model.SearchSuggestion
-import kotlinx.android.parcel.Parcelize
-import xyz.quaver.hitomi.Suggestion
+import kotlinx.parcelize.IgnoredOnParcel
+import kotlinx.parcelize.Parcelize
+import xyz.quaver.floatingsearchview.suggestions.model.SearchSuggestion
+import xyz.quaver.pupil.hitomi.Suggestion
+import xyz.quaver.pupil.util.translations

@Parcelize
 data class TagSuggestion(val s: String, val t: Int, val u: String, val n: String) : SearchSuggestion {
    constructor(s: Suggestion) : this(s.s, s.t, s.u, s.n)

-    override fun getBody(): String {
-        return s
-    }
+    @IgnoredOnParcel
+    override val body =
+        if (translations[s] != null)
+            "${translations[s]} ($s)"
+        else
+            s
 }

@Parcelize
-class Suggestion(val str: String) : SearchSuggestion {
-    override fun getBody() = str
-}
+class Suggestion(override val body: String) : SearchSuggestion

@Parcelize
-class NoResultSuggestion(val str: String) : SearchSuggestion {
-    override fun getBody() = str
-}
+class NoResultSuggestion(override val body: String) : SearchSuggestion

@Parcelize
-class LoadingSuggestion(val str: String) : SearchSuggestion {
-    override fun getBody() = str
-}
+class LoadingSuggestion(override val body: String) : SearchSuggestion

@Parcelize
@Suppress("PARCELABLE_PRIMARY_CONSTRUCTOR_IS_EMPTY")
-class FavoriteHistorySwitch(private val body: String) : SearchSuggestion {
-    override fun getBody() = body
-}
+class FavoriteHistorySwitch(override val body: String) : SearchSuggestion
--- a/app/src/main/java/xyz/quaver/pupil/ui/BaseActivity.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/BaseActivity.kt
@@ -23,6 +23,7 @@ import android.content.Intent
 import android.os.Bundle
 import android.os.PersistableBundle
 import android.view.WindowManager
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.annotation.CallSuper
 import androidx.appcompat.app.AppCompatActivity
 import xyz.quaver.pupil.R
@@ -34,6 +35,13 @@ open class BaseActivity : AppCompatActivity() {

    private var locked: Boolean = true

+    private val lockLauncher = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) {
+        if (it.resultCode == Activity.RESULT_OK)
+            locked = false
+        else
+            finish()
+    }
+
    @CallSuper
    override fun onCreate(savedInstanceState: Bundle?, persistentState: PersistableBundle?) {
        super.onCreate(savedInstanceState, persistentState)
@@ -53,20 +61,7 @@ open class BaseActivity : AppCompatActivity() {
            window.clearFlags(WindowManager.LayoutParams.FLAG_SECURE)

        if (locked)
-            startActivityForResult(Intent(this, LockActivity::class.java), R.id.request_lock.normalizeID())
-    }
-
-    @CallSuper
-    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
-        when(requestCode) {
-            R.id.request_lock.normalizeID() -> {
-                if (resultCode == Activity.RESULT_OK)
-                    locked = false
-                else
-                    finish()
-            }
-            else -> super.onActivityResult(requestCode, resultCode, data)
-        }
+            lockLauncher.launch(Intent(this, LockActivity::class.java))
    }

 }
--- a/app/src/main/java/xyz/quaver/pupil/ui/LockActivity.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/LockActivity.kt
@@ -29,10 +29,8 @@ import androidx.biometric.BiometricPrompt
 import androidx.core.content.ContextCompat
 import com.andrognito.patternlockview.PatternLockView
 import com.google.android.material.snackbar.Snackbar
-import kotlinx.android.synthetic.main.activity_lock.*
-import kotlinx.android.synthetic.main.fragment_pattern_lock.*
-import kotlinx.android.synthetic.main.fragment_pin_lock.*
 import xyz.quaver.pupil.R
+import xyz.quaver.pupil.databinding.LockActivityBinding
 import xyz.quaver.pupil.ui.fragment.PINLockFragment
 import xyz.quaver.pupil.ui.fragment.PatternLockFragment
 import xyz.quaver.pupil.util.Lock
@@ -45,6 +43,8 @@ class LockActivity : AppCompatActivity() {
    private lateinit var lockManager: LockManager
    private var mode: String? = null

+    private lateinit var binding: LockActivityBinding
+
    private val patternLockFragment = PatternLockFragment().apply {
        var lastPass = ""
        onPatternDrawn = {
@@ -57,7 +57,7 @@ class LockActivity : AppCompatActivity() {
                        setResult(Activity.RESULT_OK)
                        finish()
                    } else
-                        lock_pattern_view.setViewMode(PatternLockView.PatternViewMode.WRONG)
+                        binding.patternLockView.setViewMode(PatternLockView.PatternViewMode.WRONG)
                }
                "add_lock" -> {
                    if (lastPass.isEmpty()) {
@@ -69,7 +69,7 @@ class LockActivity : AppCompatActivity() {
                            LockManager(context!!).add(Lock.generate(Lock.Type.PATTERN, it))
                            finish()
                        } else {
-                            lock_pattern_view.setViewMode(PatternLockView.PatternViewMode.WRONG)
+                            binding.patternLockView.setViewMode(PatternLockView.PatternViewMode.WRONG)
                            lastPass = ""

                            Snackbar.make(view!!, R.string.settings_lock_wrong_confirm, Snackbar.LENGTH_LONG).show()
@@ -92,15 +92,15 @@ class LockActivity : AppCompatActivity() {
                        setResult(Activity.RESULT_OK)
                        finish()
                    } else {
-                        indicator_dots.startAnimation(AnimationUtils.loadAnimation(context, R.anim.shake).apply {
+                        binding.indicatorDots.startAnimation(AnimationUtils.loadAnimation(context, R.anim.shake).apply {
                            setAnimationListener(object: Animation.AnimationListener {
                                override fun onAnimationEnd(animation: Animation?) {
-                                    pin_lock_view.resetPinLockView()
-                                    pin_lock_view.isEnabled = true
+                                    binding.pinLockView.resetPinLockView()
+                                    binding.pinLockView.isEnabled = true
                                }

                                override fun onAnimationStart(animation: Animation?) {
-                                    pin_lock_view.isEnabled = false
+                                    binding.pinLockView.isEnabled = false
                                }

                                override fun onAnimationRepeat(animation: Animation?) {
@@ -114,22 +114,22 @@ class LockActivity : AppCompatActivity() {
                    if (lastPass.isEmpty()) {
                        lastPass = it

-                        pin_lock_view.resetPinLockView()
+                        binding.pinLockView.resetPinLockView()
                        Snackbar.make(view!!, R.string.settings_lock_confirm, Snackbar.LENGTH_LONG).show()
                    } else {
                        if (lastPass == it) {
                            LockManager(context!!).add(Lock.generate(Lock.Type.PIN, it))
                            finish()
                        } else {
-                            indicator_dots.startAnimation(AnimationUtils.loadAnimation(context, R.anim.shake).apply {
+                            binding.indicatorDots.startAnimation(AnimationUtils.loadAnimation(context, R.anim.shake).apply {
                                setAnimationListener(object: Animation.AnimationListener {
                                    override fun onAnimationEnd(animation: Animation?) {
-                                        pin_lock_view.resetPinLockView()
-                                        pin_lock_view.isEnabled = true
+                                        binding.pinLockView.resetPinLockView()
+                                        binding.pinLockView.isEnabled = true
                                    }

                                    override fun onAnimationStart(animation: Animation?) {
-                                        pin_lock_view.isEnabled = false
+                                        binding.pinLockView.isEnabled = false
                                    }

                                    override fun onAnimationRepeat(animation: Animation?) {
@@ -173,7 +173,8 @@ class LockActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_lock)
+        binding = LockActivityBinding.inflate(layoutInflater)
+        setContentView(binding.root)

        lockManager = try {
            LockManager(this)
@@ -210,7 +211,7 @@ class LockActivity : AppCompatActivity() {
                    Preferences["lock_fingerprint"]
                    && BiometricManager.from(this).canAuthenticate() == BiometricManager.BIOMETRIC_SUCCESS
                ) {
-                    lock_fingerprint.apply {
+                    binding.fingerprintBtn.apply {
                        isEnabled = true
                        setOnClickListener {
                            showBiometricPrompt()
@@ -219,7 +220,7 @@ class LockActivity : AppCompatActivity() {
                    showBiometricPrompt()
                }

-                lock_pattern.apply {
+                binding.patternBtn.apply {
                    isEnabled = lockManager.contains(Lock.Type.PATTERN)
                    setOnClickListener {
                        supportFragmentManager.beginTransaction().replace(
@@ -227,7 +228,7 @@ class LockActivity : AppCompatActivity() {
                        ).commit()
                    }
                }
-                lock_pin.apply {
+                binding.pinBtn.apply {
                    isEnabled = lockManager.contains(Lock.Type.PIN)
                    setOnClickListener {
                        supportFragmentManager.beginTransaction().replace(
@@ -235,7 +236,7 @@ class LockActivity : AppCompatActivity() {
                        ).commit()
                    }
                }
-                lock_password.isEnabled = false
+                binding.passwordBtn.isEnabled = false

                when (lockManager.locks!!.first().type) {
                    Lock.Type.PIN -> {
@@ -253,20 +254,20 @@ class LockActivity : AppCompatActivity() {
                }
            }
            "add_lock" -> {
-                lock_pattern.isEnabled = false
-                lock_pin.isEnabled = false
-                lock_fingerprint.isEnabled = false
-                lock_password.isEnabled = false
+                binding.patternBtn.isEnabled = false
+                binding.pinBtn.isEnabled = false
+                binding.fingerprintBtn.isEnabled = false
+                binding.passwordBtn.isEnabled = false

                when(intent.getStringExtra("type")!!) {
                    "pattern" -> {
-                        lock_pattern.isEnabled = true
+                        binding.patternBtn.isEnabled = true
                        supportFragmentManager.beginTransaction().add(
                            R.id.lock_content, patternLockFragment
                        ).commit()
                    }
                    "pin" -> {
-                        lock_pin.isEnabled = true
+                        binding.pinBtn.isEnabled = true
                        supportFragmentManager.beginTransaction().add(
                            R.id.lock_content, pinLockFragment
                        ).commit()
--- a/app/src/main/java/xyz/quaver/pupil/ui/MainActivity.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/MainActivity.kt
@@ -18,48 +18,64 @@

 package xyz.quaver.pupil.ui

+import android.Manifest
 import android.annotation.SuppressLint
 import android.content.Intent
+import android.content.pm.PackageManager
 import android.net.Uri
+import android.os.Build
 import android.os.Bundle
 import android.text.InputType
-import android.view.*
-import android.widget.*
+import android.text.util.Linkify
+import android.view.KeyEvent
+import android.view.MenuItem
+import android.view.View
+import android.view.animation.DecelerateInterpolator
+import android.widget.EditText
+import android.widget.TextView
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.appcompat.app.AlertDialog
-import androidx.cardview.widget.CardView
+import androidx.core.app.ActivityCompat
+import androidx.core.content.ContextCompat
 import androidx.core.view.GravityCompat
-import com.arlib.floatingsearchview.FloatingSearchView
-import com.arlib.floatingsearchview.FloatingSearchViewDayNight
-import com.arlib.floatingsearchview.suggestions.model.SearchSuggestion
-import com.arlib.floatingsearchview.util.view.SearchInputView
-import com.bumptech.glide.Glide
-import com.google.android.material.appbar.AppBarLayout
+import androidx.core.view.ViewCompat
+import androidx.recyclerview.widget.RecyclerView
 import com.google.android.material.navigation.NavigationView
 import com.google.android.material.snackbar.Snackbar
 import com.google.firebase.crashlytics.FirebaseCrashlytics
-import kotlinx.android.synthetic.main.activity_main.*
-import kotlinx.android.synthetic.main.activity_main_content.*
 import kotlinx.coroutines.*
-import xyz.quaver.hitomi.doSearch
-import xyz.quaver.hitomi.getGalleryIDsFromNozomi
-import xyz.quaver.hitomi.getSuggestionsForQuery
+import xyz.quaver.floatingsearchview.FloatingSearchView
+import xyz.quaver.floatingsearchview.suggestions.model.SearchSuggestion
+import xyz.quaver.floatingsearchview.util.view.MenuView
+import xyz.quaver.floatingsearchview.util.view.SearchInputView
 import xyz.quaver.pupil.*
 import xyz.quaver.pupil.adapters.GalleryBlockAdapter
+import xyz.quaver.pupil.databinding.MainActivityBinding
+import xyz.quaver.pupil.hitomi.doSearch
+import xyz.quaver.pupil.hitomi.getGalleryIDsFromNozomi
+import xyz.quaver.pupil.hitomi.getSuggestionsForQuery
 import xyz.quaver.pupil.services.DownloadService
 import xyz.quaver.pupil.types.*
 import xyz.quaver.pupil.ui.dialog.DownloadLocationDialogFragment
 import xyz.quaver.pupil.ui.dialog.GalleryDialog
-import xyz.quaver.pupil.util.*
+import xyz.quaver.pupil.ui.view.MainView
+import xyz.quaver.pupil.ui.view.ProgressCard
+import xyz.quaver.pupil.util.ItemClickSupport
+import xyz.quaver.pupil.util.Preferences
+import xyz.quaver.pupil.util.requestNotificationPermission
+import xyz.quaver.pupil.util.checkUpdate
 import xyz.quaver.pupil.util.downloader.Cache
 import xyz.quaver.pupil.util.downloader.DownloadManager
-import kotlin.math.abs
+import xyz.quaver.pupil.util.restore
+import xyz.quaver.pupil.util.showNotificationPermissionExplanationDialog
+import java.util.regex.Pattern
 import kotlin.math.ceil
+import kotlin.math.max
 import kotlin.math.min
 import kotlin.math.roundToInt

 class MainActivity :
    BaseActivity(),
-    FloatingSearchView.OnMenuItemClickListener,
    NavigationView.OnNavigationItemSelectedListener
 {

@@ -95,36 +111,63 @@ class MainActivity :
    private var loadingJob: Job? = null
    private var currentPage = 0

+    private lateinit var binding: MainActivityBinding
+
+    private val requestNotificationPermssionLauncher = registerForActivityResult(ActivityResultContracts.RequestPermission()) { isGranted ->
+        if (!isGranted) {
+            showNotificationPermissionExplanationDialog(this)
+        }
+    }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
+        binding = MainActivityBinding.inflate(layoutInflater)
+        setContentView(binding.root)

        if (intent.action == Intent.ACTION_VIEW) {
            intent.dataString?.let { url ->
                restore(url,
                    onFailure = {
-                        Snackbar.make(this.main_recyclerview, R.string.settings_backup_failed, Snackbar.LENGTH_LONG).show()
+                        Snackbar.make(binding.contents.recyclerview, R.string.settings_backup_failed, Snackbar.LENGTH_LONG).show()
                    }, onSuccess = {
-                        Snackbar.make(this.main_recyclerview, getString(R.string.settings_restore_success, it.size), Snackbar.LENGTH_LONG).show()
+                        Snackbar.make(binding.contents.recyclerview, getString(R.string.settings_restore_success, it), Snackbar.LENGTH_LONG).show()
                    }
                )
            }
        }

-        setContentView(R.layout.activity_main)
+        requestNotificationPermission(this, requestNotificationPermssionLauncher, false) {}

        if (Preferences["download_folder", ""].isEmpty())
            DownloadLocationDialogFragment().show(supportFragmentManager, "Download Location Dialog")

-        checkUpdate(this)
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R && !Preferences["download_folder_ignore_warning", false] &&
+            ContextCompat.getExternalFilesDirs(this, null).filterNotNull().map { Uri.fromFile(it).toString() }
+                .contains(Preferences["download_folder", ""])
+        ) {
+            AlertDialog.Builder(this)
+                .setTitle(R.string.warning)
+                .setMessage(R.string.unaccessible_download_folder)
+                .setPositiveButton(android.R.string.ok) { _, _ ->
+                    DownloadLocationDialogFragment().show(supportFragmentManager, "Download Location Dialog")
+                }.setNegativeButton(R.string.ignore) { _, _ ->
+                    Preferences["download_folder_ignore_warning"] = true
+                }.show()
+        }

        initView()
    }

+    override fun onResume() {
+        super.onResume()
+
+        checkUpdate(this)
+    }
+
    @OptIn(ExperimentalStdlibApi::class)
    override fun onBackPressed() {
        when {
-            main_drawer_layout.isDrawerOpen(GravityCompat.START) -> main_drawer_layout.closeDrawer(GravityCompat.START)
+            binding.drawer.isDrawerOpen(GravityCompat.START) -> binding.drawer.closeDrawer(GravityCompat.START)
            queryStack.removeLastOrNull() != null && queryStack.isNotEmpty() -> runOnUiThread {
                query = queryStack.last()

@@ -140,7 +183,7 @@ class MainActivity :
    override fun onDestroy() {
        super.onDestroy()

-        (main_recyclerview?.adapter as? GalleryBlockAdapter)?.timer?.cancel()
+        (binding.contents.recyclerview.adapter as? GalleryBlockAdapter)?.updateAll = false
    }

    override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean {
@@ -180,49 +223,37 @@ class MainActivity :
        }
    }

-    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
-        when(requestCode) {
-            R.id.request_settings.normalizeID() -> {
-                runOnUiThread {
-                    cancelFetch()
-                    clearGalleries()
-                    fetchGalleries(query, sortMode)
-                    loadBlocks()
-                }
-            }
-            else -> super.onActivityResult(requestCode, resultCode, data)
-        }
-    }
-
    private fun initView() {
-        var prevP1 = 0
-        main_appbar_layout.addOnOffsetChangedListener(
-            AppBarLayout.OnOffsetChangedListener { _, p1 ->
-                main_searchview.translationY = p1.toFloat()
-                main_recyclerview.scrollBy(0, prevP1 - p1)
+        binding.contents.recyclerview.addOnScrollListener(object: RecyclerView.OnScrollListener() {
+            override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
+                // -height of the search view < translationY < 0
+                binding.contents.searchview.translationY =
+                    min(
+                        max(
+                        binding.contents.searchview.translationY - dy,
+                        -binding.contents.searchview.binding.querySection.root.height.toFloat()
+                    ), 0F)

-                with(main_fab) {
-                    if (prevP1 > p1)
-                        hideMenuButton(true)
-                    else if (prevP1 < p1)
-                        showMenuButton(true)
-                }
-
-                prevP1 = p1
+                if (dy > 0)
+                    binding.contents.fab.hideMenuButton(true)
+                else if (dy < 0)
+                    binding.contents.fab.showMenuButton(true)
            }
-        )
+        })
+
+        Linkify.addLinks(binding.contents.noresult, Pattern.compile(getString(R.string.https_text)), null, null, { _, _ -> getString(R.string.https) })

        //NavigationView
-        main_nav_view.setNavigationItemSelectedListener(this)
+        binding.navView.setNavigationItemSelectedListener(this)

-        with(main_fab_cancel) {
+        with(binding.contents.cancelFab) {
            setImageResource(R.drawable.cancel)
            setOnClickListener {
                DownloadService.cancel(this@MainActivity)
            }
        }

-        with(main_fab_jump) {
+        with(binding.contents.jumpFab) {
            setImageResource(R.drawable.ic_jump)
            setOnClickListener {
                val perPage = Preferences["per_page", "25"].toInt()
@@ -250,7 +281,7 @@ class MainActivity :
            }
        }

-        with(main_fab_random) {
+        with(binding.contents.randomFab) {
            setImageResource(R.drawable.shuffle_variant)
            setOnClickListener {
                runBlocking {
@@ -261,11 +292,7 @@ class MainActivity :
                    if (it?.isEmpty() == false) {
                        val galleryID = it.random()

-                        GalleryDialog(
-                            this@MainActivity,
-                            Glide.with(this@MainActivity),
-                            galleryID
-                        ).apply {
+                        GalleryDialog(this@MainActivity, galleryID).apply {
                            onChipClickedHandler.add {
                                runOnUiThread {
                                    query = it.toQuery()
@@ -284,7 +311,7 @@ class MainActivity :
            }
        }

-        with(main_fab_id) {
+        with(binding.contents.idFab) {
            setImageResource(R.drawable.numeric)
            setOnClickListener {
                val editText = EditText(context).apply {
@@ -296,17 +323,65 @@ class MainActivity :
                    setTitle(R.string.main_open_gallery_by_id)

                    setPositiveButton(android.R.string.ok) { _, _ ->
-                            val galleryID = editText.text.toString().toIntOrNull() ?: return@setPositiveButton
-                            val intent = Intent(this@MainActivity, ReaderActivity::class.java).apply {
-                                putExtra("galleryID", galleryID)
-                            }
+                        val galleryID = editText.text.toString().toIntOrNull() ?: return@setPositiveButton

-                            startActivity(intent)
+                        GalleryDialog(this@MainActivity, galleryID).apply {
+                            onChipClickedHandler.add {
+                                runOnUiThread {
+                                    query = it.toQuery()
+                                    currentPage = 0
+
+                                    cancelFetch()
+                                    clearGalleries()
+                                    fetchGalleries(query, sortMode)
+                                    loadBlocks()
+                                }
+                                dismiss()
+                            }
+                        }.show()
                    }
                }.show()
            }
        }

+        with(binding.contents.view) {
+            setOnPageTurnListener(object: MainView.OnPageTurnListener {
+                override fun onPrev(page: Int) {
+                    currentPage--
+
+                    // disable pageturn until the contents are loaded
+                    setCurrentPage(1, false)
+
+                    ViewCompat.animate(binding.contents.searchview)
+                        .setDuration(100)
+                        .setInterpolator(DecelerateInterpolator())
+                        .translationY(0F)
+
+                    cancelFetch()
+                    clearGalleries()
+                    fetchGalleries(query, sortMode)
+                    loadBlocks()
+                }
+
+                override fun onNext(page: Int) {
+                    currentPage++
+
+                    // disable pageturn until the contents are loaded
+                    setCurrentPage(1, false)
+
+                    ViewCompat.animate(binding.contents.searchview)
+                        .setDuration(100)
+                        .setInterpolator(DecelerateInterpolator())
+                        .translationY(0F)
+
+                    cancelFetch()
+                    clearGalleries()
+                    fetchGalleries(query, sortMode)
+                    loadBlocks()
+                }
+            })
+        }
+
        setupSearchBar()
        setupRecyclerView()
        fetchGalleries(query, sortMode)
@@ -315,8 +390,8 @@ class MainActivity :

    @SuppressLint("ClickableViewAccessibility")
    private fun setupRecyclerView() {
-        with(main_recyclerview) {
-            adapter = GalleryBlockAdapter(Glide.with(this@MainActivity), galleries).apply {
+        with(binding.contents.recyclerview) {
+            adapter = GalleryBlockAdapter(galleries).apply {
                onChipClickedHandler.add {
                    runOnUiThread {
                        query = it.toQuery()
@@ -330,9 +405,11 @@ class MainActivity :
                }
                onDownloadClickedHandler = { position ->
                    val galleryID = galleries[position]
-                    if (Preferences["cache_disable"])
-                        Toast.makeText(context, R.string.settings_download_when_cache_disable_warning, Toast.LENGTH_SHORT).show()
-                    else {
+
+                    requestNotificationPermission(
+                        this@MainActivity,
+                        requestNotificationPermssionLauncher
+                    ) {
                        if (DownloadManager.getInstance(context).isDownloading(galleryID)) {     //download in progress
                            DownloadService.cancel(this@MainActivity, galleryID)
                        }
@@ -359,14 +436,12 @@ class MainActivity :
                            loadBlocks()
                        }

-                    completeFlag.put(galleryID, false)
-
                    closeAllItems()
                }
            }
            ItemClickSupport.addTo(this).apply {
                onItemClickListener = listener@{ _, position, v ->
-                    if (v !is CardView)
+                    if (v !is ProgressCard)
                        return@listener

                    val intent = Intent(this@MainActivity, ReaderActivity::class.java)
@@ -377,16 +452,12 @@ class MainActivity :
                }

                onItemLongClickListener = listener@{ _, position, v ->
-                    if (v !is CardView)
+                    if (v !is ProgressCard)
                        return@listener false

-                    val galleryID = galleries[position]
+                    val galleryID = galleries.getOrNull(position) ?: return@listener true

-                    GalleryDialog(
-                        this@MainActivity,
-                        Glide.with(this@MainActivity),
-                        galleryID
-                    ).apply {
+                    GalleryDialog(this@MainActivity, galleryID).apply {
                        onChipClickedHandler.add {
                            runOnUiThread {
                                query = it.toQuery()
@@ -404,207 +475,6 @@ class MainActivity :
                    true
                }
            }
-
-            var origin = 0f
-            var target = -1
-            val perPage = Preferences["per_page", "25"].toInt()
-            setOnTouchListener { _, event ->
-                when(event.action) {
-                    MotionEvent.ACTION_UP -> {
-                        origin = 0f
-
-                        with(main_recyclerview.adapter as GalleryBlockAdapter) {
-                            if(showPrev) {
-                                showPrev = false
-
-                                val prev = main_recyclerview.layoutManager?.getChildAt(0)
-
-                                if (prev is LinearLayout) {
-                                    val icon = prev.findViewById<ImageView>(R.id.icon_prev)
-                                    prev.layoutParams.height = 1
-                                    icon.layoutParams.height = 1
-                                    icon.rotation = 180f
-                                }
-
-                                prev?.requestLayout()
-
-                                notifyItemRemoved(0)
-                            }
-
-                            if(showNext) {
-                                showNext = false
-
-                                val next = main_recyclerview.layoutManager?.let {
-                                    getChildAt(childCount-1)
-                                }
-
-                                if (next is LinearLayout) {
-                                    val icon = next.findViewById<ImageView>(R.id.icon_next)
-                                    next.layoutParams.height = 1
-                                    icon.layoutParams.height = 1
-                                    icon.rotation = 0f
-                                }
-
-                                next?.requestLayout()
-
-                                notifyItemRemoved(itemCount)
-                            }
-                        }
-
-                        if (target != -1) {
-                            currentPage = target
-
-                            runOnUiThread {
-                                cancelFetch()
-                                clearGalleries()
-                                loadBlocks()
-                            }
-
-                            target = -1
-                        }
-                    }
-                    MotionEvent.ACTION_DOWN -> origin = event.y
-                    MotionEvent.ACTION_MOVE -> {
-                        if (origin == 0f)
-                            origin = event.y
-
-                        val dist = event.y - origin
-
-                        when {
-                            !canScrollVertically(-1) -> {
-                                //TOP
-
-                                //Scrolling UP
-                                if (dist > 0 && currentPage != 0) {
-                                    with(main_recyclerview.adapter as GalleryBlockAdapter) {
-                                        if(!showPrev) {
-                                            showPrev = true
-                                            notifyItemInserted(0)
-                                        }
-                                    }
-
-                                    val prev = main_recyclerview.layoutManager?.getChildAt(0)
-
-                                    if (prev is LinearLayout) {
-                                        val icon = prev.findViewById<ImageView>(R.id.icon_prev)
-                                        val text = prev.findViewById<TextView>(R.id.text_prev).apply {
-                                            text = getString(R.string.main_move, currentPage)
-                                        }
-                                        if (dist < 360) {
-                                            prev.layoutParams.height = (dist/2).roundToInt()
-                                            icon.layoutParams.height = (dist/2).roundToInt()
-                                            icon.rotation = dist+180
-                                            text.layoutParams.width = dist.roundToInt()
-
-                                            target = -1
-                                        }
-                                        else {
-                                            prev.layoutParams.height = 180
-                                            icon.layoutParams.height = 180
-                                            icon.rotation = 180f
-                                            text.layoutParams.width = LinearLayout.LayoutParams.WRAP_CONTENT
-
-                                            target = currentPage-1
-                                        }
-                                    }
-
-                                    prev?.requestLayout()
-
-                                    return@setOnTouchListener true
-                                } else {
-                                    with(main_recyclerview.adapter as GalleryBlockAdapter) {
-                                        if(showPrev) {
-                                            showPrev = false
-
-                                            val prev = main_recyclerview.layoutManager?.getChildAt(0)
-
-                                            if (prev is LinearLayout) {
-                                                val icon = prev.findViewById<ImageView>(R.id.icon_prev)
-                                                prev.layoutParams.height = 1
-                                                icon.layoutParams.height = 1
-                                                icon.rotation = 180f
-                                            }
-
-                                            prev?.requestLayout()
-
-                                            notifyItemRemoved(0)
-                                        }
-                                    }
-                                }
-                            }
-                            !canScrollVertically(1) -> {
-                                //BOTTOM
-
-                                //Scrolling DOWN
-                                if (dist < 0 && currentPage != ceil(totalItems.toDouble()/perPage).roundToInt()-1) {
-                                    with(main_recyclerview.adapter as GalleryBlockAdapter) {
-                                        if(!showNext) {
-                                            showNext = true
-                                            notifyItemInserted(itemCount-1)
-                                        }
-                                    }
-
-                                    val next = main_recyclerview.layoutManager?.let {
-                                        getChildAt(childCount-1)
-                                    }
-
-                                    val absDist = abs(dist)
-
-                                    if (next is LinearLayout) {
-                                        val icon = next.findViewById<ImageView>(R.id.icon_next)
-                                        val text = next.findViewById<TextView>(R.id.text_next).apply {
-                                            text = getString(R.string.main_move, currentPage+2)
-                                        }
-
-                                        if (absDist < 360) {
-                                            next.layoutParams.height = (absDist/2).roundToInt()
-                                            icon.layoutParams.height = (absDist/2).roundToInt()
-                                            icon.rotation = -absDist
-                                            text.layoutParams.width = absDist.roundToInt()
-
-                                            target = -1
-                                        } else {
-                                            next.layoutParams.height = 180
-                                            icon.layoutParams.height = 180
-                                            icon.rotation = 0f
-                                            text.layoutParams.width = LinearLayout.LayoutParams.WRAP_CONTENT
-
-                                            target = currentPage+1
-                                        }
-                                    }
-
-                                    next?.requestLayout()
-
-                                    return@setOnTouchListener true
-                                } else {
-                                    with(main_recyclerview.adapter as GalleryBlockAdapter) {
-                                        if(showNext) {
-                                            showNext = false
-
-                                            val next = main_recyclerview.layoutManager?.let {
-                                                getChildAt(childCount-1)
-                                            }
-
-                                            if (next is LinearLayout) {
-                                                val icon = next.findViewById<ImageView>(R.id.icon_next)
-                                                next.layoutParams.height = 1
-                                                icon.layoutParams.height = 1
-                                                icon.rotation = 180f
-                                            }
-
-                                            next?.requestLayout()
-
-                                            notifyItemRemoved(itemCount)
-                                        }
-                                    }
-                                }
-                            }
-                        }
-                    }
-                }
-
-                false
-            }
        }
    }

@@ -619,22 +489,30 @@ class MainActivity :
            else -> {
                searchHistory.map {
                    Suggestion(it)
-                }.takeLast(20) + FavoriteHistorySwitch(getString(R.string.search_show_tags))
+                }.takeLast(10) + FavoriteHistorySwitch(getString(R.string.search_show_tags))
            }
        }.reversed()

    private var suggestionJob : Job? = null
    private fun setupSearchBar() {
-        with(main_searchview as FloatingSearchViewDayNight) {
-            setOnLeftMenuClickListener(object: FloatingSearchView.OnLeftMenuClickListener {
+        with(binding.contents.searchview) {
+            onMenuStatusChangeListener = object: FloatingSearchView.OnMenuStatusChangeListener {
                override fun onMenuOpened() {
-                    (this@MainActivity.main_recyclerview.adapter as GalleryBlockAdapter).closeAllItems()
+                    (this@MainActivity.binding.contents.recyclerview.adapter as GalleryBlockAdapter).closeAllItems()
                }

                override fun onMenuClosed() {
                    //Do Nothing
                }
-            })
+            }
+
+            post {
+                findViewById<MenuView>(R.id.menu_view).menuItems.firstOrNull {
+                    (it as MenuItem).itemId == R.id.main_menu_thin
+                }?.let {
+                    (it as MenuItem).isChecked = Preferences["thin"]
+                }
+            }

            onHistoryDeleteClickedListener = {
                searchHistory.remove(it)
@@ -645,9 +523,11 @@ class MainActivity :
                swapSuggestions(defaultSuggestions)
            }

-            setOnMenuItemClickListener(this@MainActivity)
+            onMenuItemClickListener = {
+                onActionMenuItemSelected(it)
+            }

-            setOnQueryChangeListener { _, query ->
+            onQueryChangeListener = lambda@{ _, query ->
                this@MainActivity.query = query

                suggestionJob?.cancel()
@@ -655,12 +535,14 @@ class MainActivity :
                if (query.isEmpty() or query.endsWith(' ')) {
                    swapSuggestions(defaultSuggestions)

-                    return@setOnQueryChangeListener
+                    return@lambda
                }

                swapSuggestions(listOf(LoadingSuggestion(getText(R.string.reader_loading).toString())))

-                val currentQuery = query.split(" ").last().replace('_', ' ')
+                val currentQuery = query.split(" ").last()
+                    .replace(Regex("^-"), "")
+                    .replace('_', ' ')

                suggestionJob = CoroutineScope(Dispatchers.IO).launch {
                    val suggestions = kotlin.runCatching {
@@ -681,7 +563,7 @@ class MainActivity :
                }
            }

-            setOnFocusChangeListener(object: FloatingSearchView.OnFocusChangeListener {
+            onFocusChangeListener = object: FloatingSearchView.OnFocusChangeListener {
                override fun onFocus() {
                    if (query.isEmpty() or query.endsWith(' '))
                        swapSuggestions(defaultSuggestions)
@@ -698,19 +580,24 @@ class MainActivity :
                        loadBlocks()
                    }
                }
-            })
+            }

-            attachNavigationDrawerToMenuButton(main_drawer_layout)
+            attachNavigationDrawerToMenuButton(this@MainActivity.binding.drawer)
        }
    }

-    override fun onActionMenuItemSelected(item: MenuItem?) {
+    fun onActionMenuItemSelected(item: MenuItem?) {
        when(item?.itemId) {
-            R.id.main_menu_settings -> startActivityForResult(Intent(this@MainActivity, SettingsActivity::class.java), R.id.request_settings.normalizeID())
+            R.id.main_menu_settings -> startActivity(Intent(this@MainActivity, SettingsActivity::class.java))
            R.id.main_menu_thin -> {
-                main_recyclerview.apply {
+                val thin = !item.isChecked
+
+                item.isChecked = thin
+                binding.contents.recyclerview.apply {
                    (adapter as GalleryBlockAdapter).apply {
-                        isThin = !isThin
+                        this.thin = thin
+
+                        Preferences["thin"] = thin
                    }

                    adapter = adapter       // Force to redraw
@@ -747,7 +634,7 @@ class MainActivity :

    override fun onNavigationItemSelected(item: MenuItem): Boolean {
        runOnUiThread {
-            main_drawer_layout.closeDrawers()
+            binding.drawer.closeDrawers()

            when(item.itemId) {
                R.id.main_drawer_home -> {
@@ -816,19 +703,17 @@ class MainActivity :
        loadingJob?.cancel()
    }

-    private fun clearGalleries() {
+    private fun clearGalleries() = CoroutineScope(Dispatchers.Main).launch {
        galleries.clear()

-        with(main_recyclerview.adapter as GalleryBlockAdapter?) {
+        with(binding.contents.recyclerview.adapter as GalleryBlockAdapter?) {
            this ?: return@with

-            this.completeFlag.clear()
            this.notifyDataSetChanged()
        }

-        main_appbar_layout.setExpanded(true)
-        main_noresult.visibility = View.INVISIBLE
-        main_progressbar.show()
+        binding.contents.noresult.visibility = View.INVISIBLE
+        binding.contents.progressbar.show()
    }

    private fun fetchGalleries(query: String, sortMode: SortMode) {
@@ -843,7 +728,7 @@ class MainActivity :
        }

        if (query.isNotEmpty() && mode != Mode.SEARCH) {
-            Snackbar.make(this@MainActivity.main_recyclerview, R.string.search_all, Snackbar.LENGTH_SHORT).apply {
+            Snackbar.make(binding.contents.recyclerview, R.string.search_all, Snackbar.LENGTH_SHORT).apply {
                setAction(android.R.string.ok) {
                    cancelFetch()
                    clearGalleries()
@@ -921,7 +806,7 @@ class MainActivity :
                        }
                    }
                }
-            }
+            }.toList()
        }
    }

@@ -935,18 +820,21 @@ class MainActivity :
                        throw Exception("No result")
                }
            } catch (e: Exception) {
-
-                if (e.message != "No result")
+                if (e !is CancellationException)
                    FirebaseCrashlytics.getInstance().recordException(e)

                withContext(Dispatchers.Main) {
-                    main_noresult.visibility = View.VISIBLE
-                    main_progressbar.hide()
+                    binding.contents.noresult.visibility = View.VISIBLE
+                    binding.contents.progressbar.hide()
                }

                return@launch
            }

+            launch(Dispatchers.Main) {
+                binding.contents.view.setCurrentPage(currentPage + 1, galleryIDs.size > (currentPage+1)*perPage)
+            }
+
            galleryIDs.slice(currentPage*perPage until min(currentPage*perPage+perPage, galleryIDs.size)).chunked(5).let { chunks ->
                for (chunk in chunks)
                    chunk.map { galleryID ->
@@ -958,24 +846,14 @@ class MainActivity :
                    }.forEach {
                        it.await()?.also {
                            withContext(Dispatchers.Main) {
-                                main_progressbar.hide()
+                                binding.contents.progressbar.hide()

                                galleries.add(it)
-                                main_recyclerview.adapter!!.notifyItemInserted(galleries.size - 1)
+                                binding.contents.recyclerview.adapter!!.notifyItemInserted(galleries.size - 1)
                            }
                        }
                    }
            }
        }
    }
-
-    override fun onLowMemory() {
-        super.onLowMemory()
-        Glide.get(this).onLowMemory()
-    }
-
-    override fun onTrimMemory(level: Int) {
-        super.onTrimMemory(level)
-        Glide.get(this).onTrimMemory(level)
-    }
 }
--- a/app/src/main/java/xyz/quaver/pupil/ui/ReaderActivity.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/ReaderActivity.kt
@@ -18,45 +18,52 @@

 package xyz.quaver.pupil.ui

+import android.Manifest
 import android.content.ComponentName
 import android.content.Intent
 import android.content.ServiceConnection
+import android.content.pm.PackageManager
 import android.graphics.drawable.Animatable
 import android.graphics.drawable.Drawable
+import android.os.Build
 import android.os.Bundle
 import android.os.IBinder
 import android.view.*
-import android.widget.Toast
+import android.view.animation.Animation
+import android.view.animation.AnticipateInterpolator
+import android.view.animation.OvershootInterpolator
+import android.view.animation.TranslateAnimation
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.appcompat.app.AlertDialog
 import androidx.core.content.ContextCompat
-import androidx.preference.PreferenceManager
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.PagerSnapHelper
 import androidx.recyclerview.widget.RecyclerView
 import androidx.vectordrawable.graphics.drawable.Animatable2Compat
 import androidx.vectordrawable.graphics.drawable.AnimatedVectorDrawableCompat
-import com.bumptech.glide.Glide
 import com.google.android.material.snackbar.Snackbar
 import com.google.firebase.crashlytics.FirebaseCrashlytics
+import com.google.mlkit.vision.face.Face
 import com.qtalk.recyclerviewfastscroller.RecyclerViewFastScroller
-import kotlinx.android.synthetic.main.activity_reader.*
-import kotlinx.android.synthetic.main.activity_reader.view.*
-import kotlinx.android.synthetic.main.dialog_numberpicker.view.*
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
-import xyz.quaver.Code
 import xyz.quaver.pupil.R
 import xyz.quaver.pupil.adapters.ReaderAdapter
+import xyz.quaver.pupil.databinding.NumberpickerDialogBinding
+import xyz.quaver.pupil.databinding.ReaderActivityBinding
 import xyz.quaver.pupil.favorites
-import xyz.quaver.pupil.histories
 import xyz.quaver.pupil.services.DownloadService
 import xyz.quaver.pupil.util.Preferences
+import xyz.quaver.pupil.util.camera
+import xyz.quaver.pupil.util.checkNotificationEnabled
+import xyz.quaver.pupil.util.closeCamera
 import xyz.quaver.pupil.util.downloader.Cache
 import xyz.quaver.pupil.util.downloader.DownloadManager
-import java.util.*
-import kotlin.concurrent.schedule
-import kotlin.concurrent.timer
+import xyz.quaver.pupil.util.requestNotificationPermission
+import xyz.quaver.pupil.util.showNotificationPermissionExplanationDialog
+import xyz.quaver.pupil.util.startCamera

 class ReaderActivity : BaseActivity() {

@@ -68,19 +75,19 @@ class ReaderActivity : BaseActivity() {
    set(value) {
        field = value

-        (reader_recyclerview.adapter as ReaderAdapter).isFullScreen = value
-
-        reader_progressbar.visibility = when {
-            value -> View.VISIBLE
-            else -> View.GONE
-        }
+        (binding.recyclerview.adapter as ReaderAdapter).isFullScreen = value
    }

    private lateinit var cache: Cache
    var downloader: DownloadService? = null
    private val conn = object: ServiceConnection {
        override fun onServiceConnected(name: ComponentName?, service: IBinder?) {
-            downloader = (service as DownloadService.Binder).service
+            downloader = (service as DownloadService.Binder).service.also {
+                it.priority = 0
+
+                if (!it.progress.containsKey(galleryID))
+                    DownloadService.download(this@ReaderActivity, galleryID, true)
+            }
        }

        override fun onServiceDisconnected(name: ComponentName?) {
@@ -88,16 +95,41 @@ class ReaderActivity : BaseActivity() {
        }
    }

-    private val timer = Timer()
-    private var autoTimer: Timer? = null
-
    private val snapHelper = PagerSnapHelper()
-
    private var menu: Menu? = null

+    private val requestPermissionLauncher = registerForActivityResult(ActivityResultContracts.RequestPermission()) { isGranted ->
+        if (isGranted)
+            toggleCamera()
+        else
+            AlertDialog.Builder(this)
+                .setTitle(R.string.error)
+                .setMessage(R.string.camera_denied)
+                .setPositiveButton(android.R.string.ok) { _, _ ->}
+                .show()
+    }
+
+    enum class Eye {
+        LEFT,
+        RIGHT
+    }
+
+    private var cameraEnabled = false
+    private var eyeType: Eye? = null
+    private var eyeTime: Long = 0L
+
+    private lateinit var binding: ReaderActivityBinding
+
+    private val requestNotificationPermssionLauncher = registerForActivityResult(ActivityResultContracts.RequestPermission()) { isGranted ->
+        if (!isGranted) {
+            showNotificationPermissionExplanationDialog(this)
+        }
+    }
+
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_reader)
+        binding = ReaderActivityBinding.inflate(layoutInflater)
+        setContentView(binding.root)

        title = getString(R.string.reader_loading)
        supportActionBar?.setDisplayHomeAsUpEnabled(false)
@@ -111,38 +143,7 @@ class ReaderActivity : BaseActivity() {
            return
        }

-        if (Preferences["cache_disable"]) {
-            reader_download_progressbar.visibility = View.GONE
-            CoroutineScope(Dispatchers.IO).launch {
-                val reader = cache.getReader()
-
-                launch(Dispatchers.Main) initDownloader@{
-                    if (reader == null) {
-                        Snackbar
-                            .make(reader_layout, R.string.reader_failed_to_find_gallery, Snackbar.LENGTH_INDEFINITE)
-                            .show()
-                        return@initDownloader
-                    }
-
-                    histories.add(galleryID)
-                    (reader_recyclerview.adapter as ReaderAdapter).apply {
-                        this.reader = reader
-                        notifyDataSetChanged()
-                    }
-                    title = reader.galleryInfo.title ?: ""
-                    menu?.findItem(R.id.reader_menu_page_indicator)?.title = "$currentPage/${reader.galleryInfo.files.size}"
-
-                    menu?.findItem(R.id.reader_type)?.icon = ContextCompat.getDrawable(this@ReaderActivity,
-                        when (reader.code) {
-                            Code.HITOMI -> R.drawable.hitomi
-                            Code.HIYOBI -> R.drawable.ic_hiyobi
-                            else -> android.R.color.transparent
-                        })
-                }
-            }
-        } else
-            initDownloader()
-
+        initDownloadListener()
        initView()
    }

@@ -156,10 +157,11 @@ class ReaderActivity : BaseActivity() {
            val uri = intent.data
            val lastPathSegment = uri?.lastPathSegment
            if (uri != null && lastPathSegment != null) {
-                galleryID = when (uri.host) {
+                galleryID = if (uri.host?.endsWith("hasha.in") == true) {
+                    lastPathSegment?.toInt() ?: 0
+                } else when (uri.host) {
                    "hitomi.la" ->
                        Regex("([0-9]+).html").find(lastPathSegment)?.groupValues?.get(1)?.toIntOrNull() ?: 0
-                    "hiyobi.me" -> lastPathSegment.toInt()
                    "e-hentai.org" -> uri.pathSegments[1].toInt()
                    else -> 0
                }
@@ -169,12 +171,10 @@ class ReaderActivity : BaseActivity() {
        }
    }

-    override fun onCreateOptionsMenu(menu: Menu?): Boolean {
+    override fun onCreateOptionsMenu(menu: Menu): Boolean {
        menuInflater.inflate(R.menu.reader, menu)

-        with(menu?.findItem(R.id.reader_menu_favorite)) {
-            this ?: return@with
-
+        with(menu.findItem(R.id.reader_menu_favorite)) {
            if (favorites.contains(galleryID))
                (icon as Animatable).start()
        }
@@ -186,17 +186,19 @@ class ReaderActivity : BaseActivity() {
    override fun onOptionsItemSelected(item: MenuItem): Boolean {
        when(item.itemId) {
            R.id.reader_menu_page_indicator -> {
-                val view = LayoutInflater.from(this).inflate(R.layout.dialog_numberpicker, reader_layout, false)
-                with(view.dialog_number_picker) {
+                // TODO: Switch to DialogFragment
+                val binding = NumberpickerDialogBinding.inflate(layoutInflater, binding.root, false)
+
+                with(binding.numberPicker) {
                    minValue = 1
-                    maxValue = cache.metadata.reader?.galleryInfo?.files?.size ?: 0
+                    maxValue = cache.metadata.galleryInfo?.files?.size ?: 0
                    value = currentPage
                }
                val dialog = AlertDialog.Builder(this).apply {
-                    setView(view)
+                    setView(binding.root)
                }.create()
-                view.dialog_ok.setOnClickListener {
-                    (reader_recyclerview.layoutManager as LinearLayoutManager?)?.scrollToPositionWithOffset(view.dialog_number_picker.value-1, 0)
+                binding.okButton.setOnClickListener {
+                    (this@ReaderActivity.binding.recyclerview.layoutManager as LinearLayoutManager).scrollToPositionWithOffset(binding.numberPicker.value-1, 0)
                    dialog.dismiss()
                }

@@ -219,17 +221,32 @@ class ReaderActivity : BaseActivity() {
        return true
    }

-    override fun onDestroy() {
-        super.onDestroy()
+    override fun onResume() {
+        super.onResume()

-        timer.cancel()
-        (reader_recyclerview?.adapter as? ReaderAdapter)?.timer?.cancel()
+        bindService(Intent(this, DownloadService::class.java), conn, BIND_AUTO_CREATE)

-        if (!DownloadManager.getInstance(this).isDownloading(galleryID))
-            DownloadService.cancel(this, galleryID)
+        if (cameraEnabled)
+            startCamera(this, cameraCallback)
+    }
+
+    override fun onPause() {
+        super.onPause()
+        closeCamera()

        if (downloader != null)
            unbindService(conn)
+
+        downloader?.priority = galleryID
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+
+        update = false
+
+        if (!DownloadManager.getInstance(this).isDownloading(galleryID))
+            DownloadService.cancel(this, galleryID)
    }

    override fun onBackPressed() {
@@ -251,12 +268,12 @@ class ReaderActivity : BaseActivity() {
        //currentPage is 1-based
        return when(keyCode) {
            KeyEvent.KEYCODE_VOLUME_UP -> {
-                (reader_recyclerview.layoutManager as LinearLayoutManager?)?.scrollToPositionWithOffset(currentPage-2, 0)
+                (binding.recyclerview.layoutManager as LinearLayoutManager).scrollToPositionWithOffset(currentPage-2, 0)

                true
            }
            KeyEvent.KEYCODE_VOLUME_DOWN -> {
-                (reader_recyclerview.layoutManager as LinearLayoutManager?)?.scrollToPositionWithOffset(currentPage, 0)
+                (binding.recyclerview.layoutManager as LinearLayoutManager?)?.scrollToPositionWithOffset(currentPage, 0)

                true
            }
@@ -264,53 +281,49 @@ class ReaderActivity : BaseActivity() {
        }
    }

-    private fun initDownloader() {
-        DownloadService.download(this, galleryID, true)
-        bindService(Intent(this, DownloadService::class.java), conn, BIND_AUTO_CREATE)
+    private var update = true
+    private fun initDownloadListener() {
+        CoroutineScope(Dispatchers.Main).launch {
+            while (update) {
+                delay(1000)

-        timer.schedule(1000, 1000) {
-            val downloader = downloader ?: return@schedule
+                val downloader = downloader ?: continue

-            if (downloader.progress.indexOfKey(galleryID) < 0)  //loading
-                return@schedule
+                if (!downloader.progress.containsKey(galleryID))  //loading
+                    continue

-            if (downloader.progress[galleryID] == null) {      //Gallery not found
-                timer.cancel()
-                Snackbar
-                    .make(reader_layout, R.string.reader_failed_to_find_gallery, Snackbar.LENGTH_INDEFINITE)
-                    .show()
-            }
+                if (downloader.progress[galleryID]?.isEmpty() == true) {      //Gallery not found
+                    update = false
+                    Snackbar
+                        .make(binding.root, R.string.reader_failed_to_find_gallery, Snackbar.LENGTH_INDEFINITE)
+                        .show()

-            histories.add(galleryID)
+                    return@launch
+                }

-            runOnUiThread {
-                reader_download_progressbar.max = reader_recyclerview.adapter?.itemCount ?: 0
-                reader_download_progressbar.progress = downloader.progress[galleryID]?.count { it.isInfinite() } ?: 0
-                reader_progressbar.max = reader_recyclerview.adapter?.itemCount ?: 0
+                binding.downloadProgressbar.max = binding.recyclerview.adapter?.itemCount ?: 0
+                binding.downloadProgressbar.progress =
+                    downloader.progress[galleryID]?.count { it.isInfinite() } ?: 0

                if (title == getString(R.string.reader_loading)) {
-                    val reader = cache.metadata.reader
+                    val galleryInfo = cache.metadata.galleryInfo

-                    if (reader != null) {
-                        with (reader_recyclerview.adapter as ReaderAdapter) {
-                            this.reader = reader
+                    if (galleryInfo != null) {
+                        with(binding.recyclerview.adapter as ReaderAdapter) {
+                            this.galleryInfo = galleryInfo
                            notifyDataSetChanged()
                        }

-                        title = reader.galleryInfo.title
-                        menu?.findItem(R.id.reader_menu_page_indicator)?.title = "$currentPage/${reader.galleryInfo.files.size}"
+                        title = galleryInfo.title
+                        menu?.findItem(R.id.reader_menu_page_indicator)?.title =
+                            "$currentPage/${galleryInfo.files.size}"

-                        menu?.findItem(R.id.reader_type)?.icon = ContextCompat.getDrawable(this@ReaderActivity,
-                            when (reader.code) {
-                                Code.HITOMI -> R.drawable.hitomi
-                                Code.HIYOBI -> R.drawable.ic_hiyobi
-                                else -> android.R.color.transparent
-                            })
+                        menu?.findItem(R.id.reader_type)?.icon = ContextCompat.getDrawable(this@ReaderActivity, R.drawable.hitomi)
                    }
                }

                if (downloader.isCompleted(galleryID)) {   //Download finished
-                    reader_download_progressbar.visibility = View.GONE
+                    binding.downloadProgressbar.visibility = View.GONE

                    animateDownloadFAB(false)
                }
@@ -319,7 +332,7 @@ class ReaderActivity : BaseActivity() {
    }

    private fun initView() {
-        with(reader_recyclerview) {
+        with(binding.recyclerview) {
            adapter = ReaderAdapter(this@ReaderActivity, galleryID).apply {
                onItemClickListener = {
                    if (isScroll) {
@@ -329,7 +342,7 @@ class ReaderActivity : BaseActivity() {
                        scrollMode(false)
                        fullscreen(true)
                    } else {
-                        (reader_recyclerview.layoutManager as LinearLayoutManager?)?.scrollToPosition(currentPage) //Moves to next page because currentPage is 1-based indexing
+                        (binding.recyclerview.layoutManager as LinearLayoutManager).scrollToPositionWithOffset(currentPage, 0) //Moves to next page because currentPage is 1-based indexing
                    }
                }
            }
@@ -339,9 +352,9 @@ class ReaderActivity : BaseActivity() {
                    super.onScrolled(recyclerView, dx, dy)

                    if (dy < 0)
-                        this@ReaderActivity.reader_fab.showMenuButton(true)
+                        binding.fab.showMenuButton(true)
                    else if (dy > 0)
-                        this@ReaderActivity.reader_fab.hideMenuButton(true)
+                        binding.fab.hideMenuButton(true)

                    val layoutManager = recyclerView.layoutManager as LinearLayoutManager

@@ -349,18 +362,18 @@ class ReaderActivity : BaseActivity() {
                        return
                    currentPage = layoutManager.findFirstVisibleItemPosition()+1
                    menu?.findItem(R.id.reader_menu_page_indicator)?.title = "$currentPage/${recyclerView.adapter!!.itemCount}"
-                    this@ReaderActivity.reader_progressbar.progress = currentPage
                }
            })
        }

-        with(reader_fab_download) {
+        with(binding.downloadFab) {
            animateDownloadFAB(DownloadManager.getInstance(this@ReaderActivity).getDownloadFolder(galleryID) != null) //If download in progress, animate button

            setOnClickListener {
-                if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean("cache_disable", false))
-                    Toast.makeText(context, R.string.settings_download_when_cache_disable_warning, Toast.LENGTH_SHORT).show()
-                else {
+                requestNotificationPermission(
+                    this@ReaderActivity,
+                    requestNotificationPermssionLauncher
+                ) {
                    val downloadManager = DownloadManager.getInstance(this@ReaderActivity)

                    if (downloadManager.isDownloading(galleryID)) {
@@ -368,51 +381,47 @@ class ReaderActivity : BaseActivity() {
                        animateDownloadFAB(false)
                    } else {
                        downloadManager.addDownloadFolder(galleryID)
+                        DownloadService.download(context, galleryID, true)
                        animateDownloadFAB(true)
                    }
                }
            }
        }

-        with(reader_fab_retry) {
+        with(binding.retryFab) {
            setImageResource(R.drawable.refresh)
            setOnClickListener {
-                downloader?.cancel(galleryID)
-                downloader?.download(galleryID)
+                DownloadService.download(context, galleryID)
            }
        }

-        with(reader_fab_auto) {
-            setImageResource(R.drawable.clock_start)
+        with(binding.autoFab) {
+            setImageResource(R.drawable.eye_white)
            setOnClickListener {
-                if (autoTimer == null) {
-                    autoTimer = timer(initialDelay = 10000L, period = 10000L) {
-                        CoroutineScope(Dispatchers.Main).launch {
-                            with(this@ReaderActivity.reader_recyclerview) {
-                                val lastItem =
-                                    (layoutManager as LinearLayoutManager).findLastCompletelyVisibleItemPosition()
-
-                                if (lastItem < adapter!!.itemCount - 1)
-                                    (layoutManager as LinearLayoutManager).scrollToPosition(lastItem + 1)
-                            }
-                        }
+                when {
+                    ContextCompat.checkSelfPermission(context, Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED -> {
+                        toggleCamera()
                    }
-                    setImageResource(R.drawable.clock_end)
-                } else {
-                    autoTimer?.cancel()
-                    autoTimer = null
-                    setImageResource(R.drawable.clock_start)
+                    Build.VERSION.SDK_INT >= 23 && shouldShowRequestPermissionRationale(Manifest.permission.CAMERA) -> {
+                        AlertDialog.Builder(this@ReaderActivity)
+                            .setTitle(R.string.warning)
+                            .setMessage(R.string.camera_denied)
+                            .setPositiveButton(android.R.string.ok) { _, _ ->}
+                            .show()
+                    }
+                    else ->
+                        requestPermissionLauncher.launch(Manifest.permission.CAMERA)
                }
            }
        }

-        with(reader_fab_fullscreen) {
+        with(binding.fullscreenFab) {
            setImageResource(R.drawable.ic_fullscreen)
            setOnClickListener {
                isFullscreen = true
                fullscreen(isFullscreen)

-                this@ReaderActivity.reader_fab.close(true)
+                binding.fab.close(true)
            }
        }
    }
@@ -422,8 +431,8 @@ class ReaderActivity : BaseActivity() {
            if (isFullscreen) {
                flags = flags or WindowManager.LayoutParams.FLAG_FULLSCREEN
                supportActionBar?.hide()
-                this@ReaderActivity.reader_fab.visibility = View.INVISIBLE
-                this@ReaderActivity.scroller.let {
+                binding.fab.visibility = View.INVISIBLE
+                binding.scroller.let {
                    it.handleWidth = resources.getDimensionPixelSize(R.dimen.thumb_height)
                    it.handleHeight = resources.getDimensionPixelSize(R.dimen.thumb_width)
                    it.handleDrawable = ContextCompat.getDrawable(this@ReaderActivity, R.drawable.thumb_horizontal)
@@ -432,8 +441,8 @@ class ReaderActivity : BaseActivity() {
            } else {
                flags = flags and WindowManager.LayoutParams.FLAG_FULLSCREEN.inv()
                supportActionBar?.show()
-                this@ReaderActivity.reader_fab.visibility = View.VISIBLE
-                this@ReaderActivity.scroller.let {
+                binding.fab.visibility = View.VISIBLE
+                binding.scroller.let {
                    it.handleWidth = resources.getDimensionPixelSize(R.dimen.thumb_width)
                    it.handleHeight = resources.getDimensionPixelSize(R.dimen.thumb_height)
                    it.handleDrawable = ContextCompat.getDrawable(this@ReaderActivity, R.drawable.thumb)
@@ -444,23 +453,27 @@ class ReaderActivity : BaseActivity() {
            window.attributes = this
        }

-        reader_recyclerview.adapter = reader_recyclerview.adapter   // Force to redraw
+        binding.recyclerview.adapter = binding.recyclerview.adapter   // Force to redraw
    }

    private fun scrollMode(isScroll: Boolean) {
        if (isScroll) {
            snapHelper.attachToRecyclerView(null)
-            reader_recyclerview.layoutManager = LinearLayoutManager(this)
+            binding.recyclerview.layoutManager = LinearLayoutManager(this)
        } else {
-            snapHelper.attachToRecyclerView(reader_recyclerview)
-            reader_recyclerview.layoutManager = LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL, Preferences["rtl", false])
+            snapHelper.attachToRecyclerView(binding.recyclerview)
+            binding.recyclerview.layoutManager = object: LinearLayoutManager(this, HORIZONTAL, Preferences["rtl", false]) {
+                override fun calculateExtraLayoutSpace(state: RecyclerView.State, extraLayoutSpace: IntArray) {
+                    extraLayoutSpace.fill(600)
+                }
+            }
        }

-        (reader_recyclerview.layoutManager as LinearLayoutManager).scrollToPositionWithOffset(currentPage-1, 0)
+        (binding.recyclerview.layoutManager as LinearLayoutManager).scrollToPositionWithOffset(currentPage-1, 0)
    }

    private fun animateDownloadFAB(animate: Boolean) {
-        with(reader_fab_download) {
+        with(binding.downloadFab) {
            if (animate) {
                val icon = AnimatedVectorDrawableCompat.create(context, R.drawable.ic_downloading)

@@ -488,13 +501,119 @@ class ReaderActivity : BaseActivity() {
        }
    }

-    override fun onLowMemory() {
-        super.onLowMemory()
-        Glide.get(this).onLowMemory()
+    val cameraCallback: (List<Face>) -> Unit = callback@{ faces ->
+        binding.eyeCard.dot.let {
+            it.visibility = View.VISIBLE
+            CoroutineScope(Dispatchers.Main).launch {
+                delay(50)
+                it.visibility = View.INVISIBLE
+            }
+        }
+
+        if (faces.size != 1)
+            ContextCompat.getDrawable(this, R.drawable.eye_off).let {
+                with(binding.eyeCard) {
+                    leftEye.setImageDrawable(it)
+                    rightEye.setImageDrawable(it)
+                }
+
+                return@callback
+            }
+
+        val (left, right) = Pair(
+            faces[0].rightEyeOpenProbability?.let { it > 0.4 } == true,
+            faces[0].leftEyeOpenProbability?.let { it > 0.4 } == true
+        )
+
+        with(binding.eyeCard) {
+            leftEye.setImageDrawable(
+                ContextCompat.getDrawable(
+                    leftEye.context,
+                    if (left) R.drawable.eye else R.drawable.eye_closed
+                )
+            )
+            rightEye.setImageDrawable(
+                ContextCompat.getDrawable(
+                    rightEye.context,
+                    if (right) R.drawable.eye else R.drawable.eye_closed
+                )
+            )
+        }
+
+        when {
+            // Both closed / opened
+            !left.xor(right) -> {
+                eyeType = null
+                eyeTime = 0L
+            }
+            !left -> {
+                if (eyeType != Eye.LEFT) {
+                    eyeType = Eye.LEFT
+                    eyeTime = System.currentTimeMillis()
+                }
+            }
+            !right -> {
+                if (eyeType != Eye.RIGHT) {
+                    eyeType = Eye.RIGHT
+                    eyeTime = System.currentTimeMillis()
+                }
+            }
+        }
+
+        if (eyeType != null && System.currentTimeMillis() - eyeTime > 100) {
+            (binding.recyclerview.layoutManager as LinearLayoutManager).let {
+                it.scrollToPositionWithOffset(when(eyeType!!) {
+                    Eye.RIGHT -> {
+                        if (it.reverseLayout) currentPage - 2 else currentPage
+                    }
+                    Eye.LEFT -> {
+                        if (it.reverseLayout) currentPage else currentPage - 2
+                    }
+                }, 0)
+            }
+
+            eyeTime = System.currentTimeMillis() + 500
+        }
    }

-    override fun onTrimMemory(level: Int) {
-        super.onTrimMemory(level)
-        Glide.get(this).onTrimMemory(level)
+    private fun toggleCamera() {
+        val eyes = binding.eyeCard.root
+        when (camera) {
+            null -> {
+                binding.autoFab.labelText = getString(R.string.reader_fab_auto_cancel)
+                binding.autoFab.setImageResource(R.drawable.eye_off_white)
+                eyes.apply {
+                    visibility = View.VISIBLE
+                    TranslateAnimation(0F, 0F, -100F, 0F).apply {
+                        duration = 500
+                        fillAfter = false
+                        interpolator = OvershootInterpolator()
+                    }.let { startAnimation(it) }
+                }
+                startCamera(this, cameraCallback)
+                cameraEnabled = true
+            }
+            else -> {
+                binding.autoFab.labelText = getString(R.string.reader_fab_auto)
+                binding.autoFab.setImageResource(R.drawable.eye_white)
+                eyes.apply {
+                    TranslateAnimation(0F, 0F, 0F, -100F).apply {
+                        duration = 500
+                        fillAfter = false
+                        interpolator = AnticipateInterpolator()
+                        setAnimationListener(object: Animation.AnimationListener {
+                            override fun onAnimationStart(p0: Animation?) {}
+                            override fun onAnimationRepeat(p0: Animation?) {}
+
+                            override fun onAnimationEnd(p0: Animation?) {
+                                eyes.visibility = View.GONE
+                            }
+                        })
+                    }.let { startAnimation(it) }
+                }
+                closeCamera()
+                cameraEnabled = false
+            }
+        }
    }
 }
--- a/app/src/main/java/xyz/quaver/pupil/ui/SettingsActivity.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/SettingsActivity.kt
@@ -18,24 +18,10 @@

 package xyz.quaver.pupil.ui

-import android.annotation.SuppressLint
-import android.app.Activity
-import android.content.Intent
-import android.content.pm.PackageManager
 import android.os.Bundle
 import android.view.MenuItem
-import android.view.WindowManager
-import androidx.appcompat.app.AppCompatActivity
-import com.google.android.material.snackbar.Snackbar
-import kotlinx.serialization.decodeFromString
-import kotlinx.serialization.json.Json
 import xyz.quaver.pupil.R
-import xyz.quaver.pupil.favorites
-import xyz.quaver.pupil.ui.fragment.LockSettingsFragment
 import xyz.quaver.pupil.ui.fragment.SettingsFragment
-import xyz.quaver.pupil.util.Preferences
-import xyz.quaver.pupil.util.normalizeID
-import java.nio.charset.Charset

 class SettingsActivity : BaseActivity() {

@@ -56,19 +42,4 @@ class SettingsActivity : BaseActivity() {

        return true
    }
-
-    @SuppressLint("InlinedApi")
-    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
-        when (requestCode) {
-            R.id.request_write_permission_and_saf.normalizeID() -> {
-                if (grantResults.firstOrNull() == PackageManager.PERMISSION_GRANTED) {
-                    val intent = Intent(Intent.ACTION_OPEN_DOCUMENT_TREE).apply {
-                        putExtra("android.content.extra.SHOW_ADVANCED", true)
-                    }
-
-                    startActivityForResult(intent, R.id.request_download_folder.normalizeID())
-                }
-            }
-        }
-    }
 }
--- a/app/src/main/java/xyz/quaver/pupil/ui/dialog/DefaultQueryDialog.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/dialog/DefaultQueryDialog.kt
@@ -18,30 +18,30 @@

 package xyz.quaver.pupil.ui.dialog

-import android.annotation.SuppressLint
 import android.app.Dialog
-import android.content.Context
 import android.os.Bundle
 import android.text.Editable
 import android.text.TextWatcher
-import android.view.LayoutInflater
-import android.view.View
 import android.widget.ArrayAdapter
 import androidx.appcompat.app.AlertDialog
-import kotlinx.android.synthetic.main.dialog_default_query.*
-import kotlinx.android.synthetic.main.dialog_default_query.view.*
+import androidx.fragment.app.DialogFragment
 import xyz.quaver.pupil.R
+import xyz.quaver.pupil.databinding.DefaultQueryDialogBinding
 import xyz.quaver.pupil.types.Tags
 import xyz.quaver.pupil.util.Preferences

-class DefaultQueryDialog(context : Context) : AlertDialog(context) {
+class DefaultQueryDialog : DialogFragment() {

-    private val languages = context.resources.getStringArray(R.array.languages).map {
-        it.split("|").let { split ->
-            Pair(split[0], split[1])
-        }
-    }.toMap()
-    private val reverseLanguages = languages.entries.associate { (k, v) -> v to k }
+    private val languages: Map<String, String> by lazy {
+        requireContext().resources.getStringArray(R.array.languages).map {
+            it.split("|").let { split ->
+                Pair(split[0], split[1])
+            }
+        }.toMap()
+    }
+    private val reverseLanguages: Map<String, String> by lazy {
+        languages.entries.associate { (k, v) -> v to k }
+    }

    private val excludeBL = "-male:yaoi"
    private val excludeGuro = listOf("-female:guro", "-male:guro")
@@ -49,46 +49,15 @@ class DefaultQueryDialog(context : Context) : AlertDialog(context) {

    var onPositiveButtonClickListener : ((Tags) -> (Unit))? = null

-    @SuppressLint("InflateParams")
-    override fun onCreate(savedInstanceState: Bundle?) {
-        setTitle(R.string.default_query_dialog_title)
-        setView(build())
-        setButton(Dialog.BUTTON_POSITIVE, context.getString(android.R.string.ok)) { _, _ ->
-            val newTags = Tags.parse(default_query_dialog_edittext.text.toString())
+    private var _binding: DefaultQueryDialogBinding? = null
+    private val binding get() = _binding!!

-            with(default_query_dialog_language_selector) {
-                if (selectedItemPosition != 0)
-                    newTags.add("language:${reverseLanguages[selectedItem]}")
-            }
-
-            if (default_query_dialog_BL_checkbox.isChecked)
-                newTags.add(excludeBL)
-
-            if (default_query_dialog_guro_checkbox.isChecked)
-                excludeGuro.forEach { tag ->
-                    newTags.add(tag)
-                }
-
-            if (default_query_dialog_loli_checkbox.isChecked)
-                excludeLoli.forEach { tag ->
-                    newTags.add(tag)
-                }
-
-            onPositiveButtonClickListener?.invoke(newTags)
-        }
-
-        super.onCreate(savedInstanceState)
-    }
-
-    @SuppressLint("InflateParams")
-    private fun build() : View {
+    private fun initView() {
        val tags = Tags.parse(
            Preferences["default_query"]
        )

-        val view = LayoutInflater.from(context).inflate(R.layout.dialog_default_query, null)
-
-        with(view.default_query_dialog_language_selector) {
+        with(binding.languageSelector) {
            adapter =
                ArrayAdapter(
                    context,
@@ -111,13 +80,13 @@ class DefaultQueryDialog(context : Context) : AlertDialog(context) {
            }
        }

-        with(view.default_query_dialog_BL_checkbox) {
+        with(binding.BLCheckbox) {
            isChecked = tags.contains(excludeBL)
            if (tags.contains(excludeBL))
                tags.remove(excludeBL)
        }

-        with(view.default_query_dialog_guro_checkbox) {
+        with(binding.guroCheckbox) {
            isChecked = excludeGuro.all { tags.contains(it) }
            if (excludeGuro.all { tags.contains(it) })
                excludeGuro.forEach {
@@ -125,7 +94,7 @@ class DefaultQueryDialog(context : Context) : AlertDialog(context) {
                }
        }

-        with(view.default_query_dialog_loli_checkbox) {
+        with(binding.loliCheckbox) {
            isChecked = excludeLoli.all { tags.contains(it) }
            if (excludeLoli.all { tags.contains(it) })
                excludeLoli.forEach {
@@ -133,7 +102,7 @@ class DefaultQueryDialog(context : Context) : AlertDialog(context) {
                }
        }

-        with(view.default_query_dialog_edittext) {
+        with(binding.edittext) {
            setText(tags.toString(), android.widget.TextView.BufferType.EDITABLE)
            addTextChangedListener(object : TextWatcher {
                override fun beforeTextChanged(
@@ -158,8 +127,45 @@ class DefaultQueryDialog(context : Context) : AlertDialog(context) {
                }
            })
        }
+    }

-        return view
+    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+        _binding = DefaultQueryDialogBinding.inflate(layoutInflater)
+
+        initView()
+
+        return AlertDialog.Builder(requireContext()).apply {
+            setTitle(R.string.default_query_dialog_title)
+            setView(binding.root)
+            setPositiveButton(android.R.string.ok) { _, _ ->
+                val newTags = Tags.parse(binding.edittext.text.toString())
+
+                with(binding.languageSelector) {
+                    if (selectedItemPosition != 0)
+                        newTags.add("language:${reverseLanguages[selectedItem]}")
+                }
+
+                if (binding.BLCheckbox.isChecked)
+                    newTags.add(excludeBL)
+
+                if (binding.guroCheckbox.isChecked)
+                    excludeGuro.forEach { tag ->
+                        newTags.add(tag)
+                    }
+
+                if (binding.loliCheckbox.isChecked)
+                    excludeLoli.forEach { tag ->
+                        newTags.add(tag)
+                    }
+
+                onPositiveButtonClickListener?.invoke(newTags)
+            }
+        }.create()
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        _binding = null
    }

 }
--- a/app/src/main/java/xyz/quaver/pupil/ui/dialog/DownloadFolderNameDialogFragment.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/dialog/DownloadFolderNameDialogFragment.kt
@@ -18,17 +18,17 @@

 package xyz.quaver.pupil.ui.dialog

-import android.annotation.SuppressLint
 import android.app.Dialog
 import android.os.Bundle
-import android.view.View
 import android.view.ViewGroup
 import androidx.core.widget.addTextChangedListener
 import androidx.fragment.app.DialogFragment
 import com.google.android.material.snackbar.Snackbar
-import kotlinx.android.synthetic.main.dialog_download_folder_name.view.*
-import kotlinx.coroutines.runBlocking
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
 import xyz.quaver.pupil.R
+import xyz.quaver.pupil.databinding.DownloadFolderNameDialogBinding
 import xyz.quaver.pupil.util.Preferences
 import xyz.quaver.pupil.util.downloader.Cache
 import xyz.quaver.pupil.util.formatDownloadFolder
@@ -37,38 +37,49 @@ import xyz.quaver.pupil.util.formatMap

 class DownloadFolderNameDialogFragment : DialogFragment() {

-    @SuppressLint("InflateParams")
-    private fun build(): View {
-        val galleryID = Cache.instances.let { if (it.size() == 0) 1199708 else it.keyAt((0 until it.size()).random()) }
-        val galleryBlock = runBlocking {
-            Cache.getInstance(requireContext(), galleryID).getGalleryBlock()
-        }
+    private var _binding: DownloadFolderNameDialogBinding? = null
+    private val binding get() = _binding!!

-        return layoutInflater.inflate(R.layout.dialog_download_folder_name, null).apply {
-            message.text = getString(R.string.settings_download_folder_name_message, formatMap.keys.toString(), galleryBlock?.formatDownloadFolder() ?: "")
-            edittext.setText(Preferences["download_folder_name", "[-id-] -title-"])
-            edittext.addTextChangedListener {
-                message.text = getString(R.string.settings_download_folder_name_message, formatMap.keys.toString(), galleryBlock?.formatDownloadFolderTest(it.toString()) ?: "")
-            }
-            ok_button.setOnClickListener {
-                val newValue = edittext.text.toString()
+    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+        _binding = DownloadFolderNameDialogBinding.inflate(layoutInflater)

-                if ((newValue as? String)?.contains("/") != false) {
-                    Snackbar.make(this, R.string.settings_invalid_download_folder_name, Snackbar.LENGTH_SHORT).show()
-                    return@setOnClickListener
-                }
+        initView()

-                Preferences["download_folder_name"] = edittext.text.toString()
-
-                dismiss()
-            }
+        return Dialog(requireContext()).apply {
+            setContentView(binding.root)
+            window?.attributes?.width = ViewGroup.LayoutParams.MATCH_PARENT
        }
    }

-    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog =
-       Dialog(requireContext()).apply {
-           setContentView(build())
-           window?.attributes?.width = ViewGroup.LayoutParams.MATCH_PARENT
-       }
+    override fun onDestroy() {
+        super.onDestroy()
+        _binding = null
+    }
+
+    private fun initView() {
+        val galleryID = Cache.instances.let { if (it.size == 0) 1199708 else it.keys.elementAt((0 until it.size).random()) }
+        CoroutineScope(Dispatchers.IO).launch {
+            val galleryBlock = Cache.getInstance(requireContext(), galleryID).getGalleryBlock()
+
+            binding.message.text = getString(R.string.settings_download_folder_name_message, formatMap.keys.toString(), galleryBlock?.formatDownloadFolder() ?: "")
+            binding.edittext.addTextChangedListener {
+                binding.message.text = requireContext().getString(R.string.settings_download_folder_name_message, formatMap.keys.toString(), galleryBlock?.formatDownloadFolderTest(it.toString()) ?: "")
+            }
+        }
+
+        binding.edittext.setText(Preferences["download_folder_name", "[-id-] -title-"])
+        binding.okButton.setOnClickListener {
+            val newValue = binding.edittext.text.toString()
+
+            if ((newValue as? String)?.contains("/") != false) {
+                Snackbar.make(binding.root, R.string.settings_invalid_download_folder_name, Snackbar.LENGTH_SHORT).show()
+                return@setOnClickListener
+            }
+
+            Preferences["download_folder_name"] = binding.edittext.text.toString()
+
+            dismiss()
+        }
+    }

 }
--- a/app/src/main/java/xyz/quaver/pupil/ui/dialog/DownloadLocationDialogFragment.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/dialog/DownloadLocationDialogFragment.kt
@@ -18,70 +18,132 @@

 package xyz.quaver.pupil.ui.dialog

-import android.annotation.SuppressLint
 import android.app.Activity
 import android.app.Dialog
 import android.content.Intent
 import android.os.Build
 import android.os.Bundle
-import android.view.View
-import android.widget.LinearLayout
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.appcompat.app.AlertDialog
 import androidx.core.content.ContextCompat
 import androidx.core.net.toUri
 import androidx.fragment.app.DialogFragment
 import com.google.android.material.snackbar.Snackbar
-import kotlinx.android.synthetic.main.item_download_folder.view.*
 import net.rdrei.android.dirchooser.DirectoryChooserActivity
 import net.rdrei.android.dirchooser.DirectoryChooserConfig
 import xyz.quaver.io.FileX
+import xyz.quaver.io.util.toFile
 import xyz.quaver.pupil.R
+import xyz.quaver.pupil.databinding.DownloadLocationDialogBinding
+import xyz.quaver.pupil.databinding.DownloadLocationItemBinding
 import xyz.quaver.pupil.util.Preferences
 import xyz.quaver.pupil.util.byteToString
 import xyz.quaver.pupil.util.downloader.DownloadManager
-import xyz.quaver.pupil.util.migrate
-import xyz.quaver.pupil.util.normalizeID
 import java.io.File

 class DownloadLocationDialogFragment : DialogFragment() {
-    private val entries = mutableMapOf<File?, View>()

-    @SuppressLint("InflateParams")
-    private fun build() : View? {
-        val context = context ?: return null
+    private var _binding: DownloadLocationDialogBinding? = null
+    private val binding get() = _binding!!

-        val view = layoutInflater.inflate(R.layout.dialog_download_folder, null) as LinearLayout
+    private val entries = mutableMapOf<File?, DownloadLocationItemBinding>()

-        val externalFilesDirs = ContextCompat.getExternalFilesDirs(context, null)
+    private val requestDownloadFolderLauncher = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) {
+        if (it.resultCode == Activity.RESULT_OK) {
+            val context = context ?: return@registerForActivityResult
+            val dialog = dialog ?: return@registerForActivityResult
+
+            it.data?.data?.also { uri ->
+                val takeFlags: Int = Intent.FLAG_GRANT_READ_URI_PERMISSION or Intent.FLAG_GRANT_WRITE_URI_PERMISSION
+
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT)
+                    context.contentResolver.takePersistableUriPermission(uri, takeFlags)
+
+                if (kotlin.runCatching { FileX(context, uri).canWrite() }.getOrDefault(false)) {
+                    entries[null]?.locationAvailable?.text = uri.toFile(context)?.canonicalPath
+                    Preferences["download_folder"] = uri.toString()
+                } else {
+                    Snackbar.make(
+                        dialog.window!!.decorView.rootView,
+                        R.string.settings_download_folder_not_writable,
+                        Snackbar.LENGTH_LONG
+                    ).show()
+
+                    val downloadFolder = DownloadManager.getInstance(context).downloadFolder.canonicalPath
+                    val key = entries.keys.firstOrNull { it?.canonicalPath == downloadFolder }
+                    entries[key]!!.button.isChecked = true
+                    if (key == null) entries[key]!!.locationAvailable.text = downloadFolder
+                }
+            }
+        } else {
+            val downloadFolder = DownloadManager.getInstance(context ?: return@registerForActivityResult).downloadFolder.canonicalPath
+            val key = entries.keys.firstOrNull { it?.canonicalPath == downloadFolder }
+            if (key == null)
+                entries[key]!!.locationAvailable.text = downloadFolder
+            else {
+                entries[null]!!.button.isChecked = false
+                entries[key]!!.button.isChecked = true
+            }
+        }
+    }
+
+    private val requestDownloadFolderOldLauncher = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) {
+        val context = context ?: return@registerForActivityResult
+        val dialog = dialog ?: return@registerForActivityResult
+
+        if (it.resultCode == DirectoryChooserActivity.RESULT_CODE_DIR_SELECTED) {
+            val directory = it.data?.getStringExtra(DirectoryChooserActivity.RESULT_SELECTED_DIR)!!
+
+            if (!File(directory).canWrite()) {
+                Snackbar.make(
+                    dialog.window!!.decorView.rootView,
+                    R.string.settings_download_folder_not_writable,
+                    Snackbar.LENGTH_LONG
+                ).show()
+
+                val downloadFolder = DownloadManager.getInstance(context).downloadFolder.canonicalPath
+                val key = entries.keys.firstOrNull { it?.canonicalPath == downloadFolder }
+                entries[key]!!.button.isChecked = true
+                if (key == null) entries[key]!!.locationAvailable.text = downloadFolder
+            }
+            else {
+                entries[null]?.locationAvailable?.text = directory
+                Preferences["download_folder"] = File(directory).toURI().toString()
+            }
+        }
+    }
+
+    private fun initView() {
+        val externalFilesDirs = ContextCompat.getExternalFilesDirs(requireContext(), null)

        externalFilesDirs.forEachIndexed { index, dir ->
            dir ?: return@forEachIndexed

-            view.addView(layoutInflater.inflate(R.layout.item_download_folder, view, false).apply {
-                location_type.text = context.getString(when (index) {
+            DownloadLocationItemBinding.inflate(layoutInflater, binding.root, true).apply {
+                locationType.text = requireContext().getString(when (index) {
                    0 -> R.string.settings_download_folder_internal
                    else -> R.string.settings_download_folder_removable
                })
-                location_available.text = context.getString(
+                locationAvailable.text = requireContext().getString(
                    R.string.settings_download_folder_available,
                    byteToString(dir.freeSpace)
                )
-                setOnClickListener {
-                    entries.values.forEach {
-                        it.button.isChecked = false
+                root.setOnClickListener {
+                    entries.values.forEach { entry ->
+                        entry.button.isChecked = false
                    }
                    button.performClick()
                    Preferences["download_folder"] = dir.toUri().toString()
                }
                entries[dir] = this
-            })
+            }
        }

-        view.addView(layoutInflater.inflate(R.layout.item_download_folder, view, false).apply {
-            location_type.text = context.getString(R.string.settings_download_folder_custom)
-            setOnClickListener {
-                entries.values.forEach {
-                    it.button.isChecked = false
+        DownloadLocationItemBinding.inflate(layoutInflater, binding.root, true).apply {
+            locationType.text = requireContext().getString(R.string.settings_download_folder_custom)
+            root.setOnClickListener {
+                entries.values.forEach { entry ->
+                    entry.button.isChecked = false
                }
                button.performClick()

@@ -90,7 +152,7 @@ class DownloadLocationDialogFragment : DialogFragment() {
                        putExtra("android.content.extra.SHOW_ADVANCED", true)
                    }

-                    startActivityForResult(intent, R.id.request_download_folder.normalizeID())
+                    requestDownloadFolderLauncher.launch(intent)
                } else {    // Can't use SAF on old Androids!
                    val config = DirectoryChooserConfig.builder()
                        .newDirectoryName("Pupil")
@@ -101,96 +163,37 @@ class DownloadLocationDialogFragment : DialogFragment() {
                        putExtra(DirectoryChooserActivity.EXTRA_CONFIG, config)
                    }

-                    startActivityForResult(intent, R.id.request_download_folder_old.normalizeID())
+                    requestDownloadFolderOldLauncher.launch(intent)
                }
            }
            entries[null] = this
-        })
+        }

-        val downloadFolder = DownloadManager.getInstance(context).downloadFolder.canonicalPath
+        val downloadFolder = DownloadManager.getInstance(requireContext()).downloadFolder.canonicalPath
        val key = entries.keys.firstOrNull { it?.canonicalPath == downloadFolder }
        entries[key]!!.button.isChecked = true
-        if (key == null) entries[key]!!.location_available.text = downloadFolder
-
-        return view
+        if (key == null) entries[key]!!.locationAvailable.text = downloadFolder
    }

    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
-        val builder = AlertDialog.Builder(requireContext())
+        _binding = DownloadLocationDialogBinding.inflate(layoutInflater)

-        builder
-            .setTitle(R.string.settings_download_folder)
-            .setView(build())
-            .setPositiveButton(requireContext().getText(android.R.string.ok)) { _, _ ->
+        initView()
+
+        return AlertDialog.Builder(requireContext()).apply {
+            setTitle(R.string.settings_download_folder)
+            setView(binding.root)
+            setPositiveButton(requireContext().getText(android.R.string.ok)) { _, _ ->
                if (Preferences["download_folder", ""].isEmpty())
-                    Preferences["download_folder"] = context?.getExternalFilesDir(null)?.toUri()?.toString() ?: ""
-
-                DownloadManager.getInstance(requireContext()).migrate()
+                    Preferences["download_folder"] = context.getExternalFilesDir(null)?.toUri()?.toString() ?: ""
            }

-        isCancelable = false
-
-        return builder.create()
+            isCancelable = false
+        }.create()
    }

-    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
-        when (requestCode) {
-            R.id.request_download_folder.normalizeID() -> {
-                if (resultCode == Activity.RESULT_OK) {
-                    val activity = activity ?: return
-                    val context = context ?: return
-                    val dialog = dialog ?: return
-
-                    data?.data?.also { uri ->
-                        val takeFlags: Int =
-                            activity.intent.flags and
-                                    (Intent.FLAG_GRANT_READ_URI_PERMISSION or Intent.FLAG_GRANT_WRITE_URI_PERMISSION)
-
-                        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT)
-                            context.contentResolver.takePersistableUriPermission(uri, takeFlags)
-
-                        if (kotlin.runCatching { FileX(context, uri).canWrite() }.getOrDefault(false))
-                            Preferences["download_folder"] = uri.toString()
-                        else {
-                            Snackbar.make(
-                                dialog.window!!.decorView.rootView,
-                                R.string.settings_download_folder_not_writable,
-                                Snackbar.LENGTH_LONG
-                            ).show()
-
-                            val downloadFolder = DownloadManager.getInstance(context).downloadFolder.canonicalPath
-                            val key = entries.keys.firstOrNull { it?.canonicalPath == downloadFolder }
-                            entries[key]!!.button.isChecked = true
-                            if (key == null) entries[key]!!.location_available.text = downloadFolder
-                        }
-                    }
-                }
-            }
-            R.id.request_download_folder_old.normalizeID() -> {
-                val context = context ?: return
-                val dialog = dialog ?: return
-
-                if (resultCode == DirectoryChooserActivity.RESULT_CODE_DIR_SELECTED) {
-                    val directory = data?.getStringExtra(DirectoryChooserActivity.RESULT_SELECTED_DIR)!!
-
-                    if (!File(directory).canWrite()) {
-                        Snackbar.make(
-                            dialog.window!!.decorView.rootView,
-                            R.string.settings_download_folder_not_writable,
-                            Snackbar.LENGTH_LONG
-                        ).show()
-
-                        val downloadFolder = DownloadManager.getInstance(context).downloadFolder.canonicalPath
-                        val key = entries.keys.firstOrNull { it?.canonicalPath == downloadFolder }
-                        entries[key]!!.button.isChecked = true
-                        if (key == null) entries[key]!!.location_available.text = downloadFolder
-                    }
-                    else
-                        Preferences["download_folder"] = File(directory).canonicalPath
-                }
-            }
-            else -> super.onActivityResult(requestCode, resultCode, data)
-        }
+    override fun onDestroy() {
+        super.onDestroy()
+        _binding = null
    }
-
 }
--- a/app/src/main/java/xyz/quaver/pupil/ui/dialog/GalleryDialog.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/dialog/GalleryDialog.kt
@@ -18,48 +18,49 @@

 package xyz.quaver.pupil.ui.dialog

-import android.app.Dialog
 import android.content.Context
 import android.content.Intent
+import android.net.Uri
 import android.os.Bundle
-import android.view.LayoutInflater
 import android.view.View
+import android.view.ViewGroup
 import android.widget.LinearLayout.LayoutParams
+import androidx.appcompat.app.AlertDialog
 import androidx.core.content.ContextCompat
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import androidx.viewpager2.widget.ViewPager2
-import com.bumptech.glide.RequestManager
 import com.google.android.material.snackbar.Snackbar
-import kotlinx.android.synthetic.main.dialog_gallery.*
-import kotlinx.android.synthetic.main.dialog_gallery_details.view.*
-import kotlinx.android.synthetic.main.dialog_gallery_dotindicator.view.*
-import kotlinx.android.synthetic.main.item_gallery_details.view.*
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
-import xyz.quaver.hitomi.Gallery
-import xyz.quaver.hitomi.getGallery
-import xyz.quaver.pupil.BuildConfig
+import xyz.quaver.pupil.hitomi.Gallery
+import xyz.quaver.pupil.hitomi.getGallery
 import xyz.quaver.pupil.R
 import xyz.quaver.pupil.adapters.GalleryBlockAdapter
 import xyz.quaver.pupil.adapters.ThumbnailPageAdapter
-import xyz.quaver.pupil.histories
+import xyz.quaver.pupil.databinding.*
+import xyz.quaver.pupil.favoriteTags
 import xyz.quaver.pupil.types.Tag
 import xyz.quaver.pupil.ui.ReaderActivity
 import xyz.quaver.pupil.ui.view.TagChip
 import xyz.quaver.pupil.util.ItemClickSupport
 import xyz.quaver.pupil.util.downloader.Cache
 import xyz.quaver.pupil.util.wordCapitalize
+import java.util.*
+import kotlin.collections.ArrayList

-class GalleryDialog(context: Context, private val glide: RequestManager, private val galleryID: Int) : Dialog(context) {
+class GalleryDialog(context: Context, private val galleryID: Int) : AlertDialog(context) {

    val onChipClickedHandler = ArrayList<((Tag) -> (Unit))>()

+    private lateinit var binding: GalleryDialogBinding
+
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
-        setContentView(R.layout.dialog_gallery)
+        binding = GalleryDialogBinding.inflate(layoutInflater)
+        setContentView(binding.root)

        window?.attributes.apply {
            this ?: return@apply
@@ -68,13 +69,12 @@ class GalleryDialog(context: Context, private val glide: RequestManager, private
            height = LayoutParams.MATCH_PARENT
        }

-        with(gallery_fab) {
+        with(binding.fab) {
            setImageDrawable(ContextCompat.getDrawable(context, R.drawable.arrow_right))
            setOnClickListener {
                context.startActivity(Intent(context, ReaderActivity::class.java).apply {
                    putExtra("galleryID", galleryID)
                })
-                histories.add(galleryID)
            }
        }

@@ -82,12 +82,12 @@ class GalleryDialog(context: Context, private val glide: RequestManager, private
            try {
                val gallery = getGallery(galleryID)

-                gallery_cover.post {
-                    gallery_progressbar.visibility = View.GONE
-                    gallery_title.text = gallery.title
-                    gallery_artist.text = gallery.artists.joinToString(", ") { it.wordCapitalize() }
+                launch (Dispatchers.Main) {
+                    binding.progressbar.visibility = View.GONE
+                    binding.title.text = gallery.title
+                    binding.artist.text = gallery.artists.joinToString(", ") { it.wordCapitalize() }

-                    with(gallery_type) {
+                    with(binding.type) {
                        text = gallery.type.wordCapitalize()
                        setOnClickListener {
                            gallery.type.let {
@@ -104,28 +104,26 @@ class GalleryDialog(context: Context, private val glide: RequestManager, private
                        }
                    }

-                    glide
-                        .load(gallery.cover)
-                        .apply {
-                            if (BuildConfig.CENSOR)
-                                override(5, 8)
-                        }.into(gallery_cover)
+                    binding.cover.showImage(Uri.parse(gallery.cover))

                    addDetails(gallery)
                    addThumbnails(gallery)
                    addRelated(gallery)
                }
            } catch (e: Exception) {
-                Snackbar.make(gallery_layout, R.string.unable_to_connect, Snackbar.LENGTH_INDEFINITE).show()
+                Snackbar.make(binding.root, R.string.unable_to_connect, Snackbar.LENGTH_INDEFINITE).apply {
+                    if (Locale.getDefault().language == "ko")
+                        setAction(context.getText(R.string.https_text)) {
+                            context.startActivity(Intent(Intent.ACTION_VIEW, Uri.parse(context.getString(R.string.https))))
+                        }
+                }.show()
            }
        }
    }

    private fun addDetails(gallery: Gallery) {
-        val inflater = LayoutInflater.from(context)
-
-        inflater.inflate(R.layout.dialog_gallery_details, gallery_contents, false).apply {
-            gallery_details.setText(R.string.gallery_details)
+        GalleryDialogDetailsBinding.inflate(layoutInflater, binding.contents, true).apply {
+            type.setText(R.string.gallery_details)

            listOf(
                R.string.gallery_artists,
@@ -141,7 +139,18 @@ class GalleryDialog(context: Context, private val glide: RequestManager, private
                    listOf(gallery.language).map { Tag("language", it) },
                    gallery.series.map { Tag("series", it) },
                    gallery.characters.map { Tag("character", it) },
-                    gallery.tags.map {
+                    gallery.tags.sortedBy {
+                        val tag = Tag.parse(it)
+
+                        if (favoriteTags.contains(tag))
+                            -1
+                        else
+                            when(Tag.parse(it).area) {
+                                "female" -> 0
+                                "male" -> 1
+                                else -> 2
+                            }
+                    }.map {
                        Tag.parse(it).let { tag ->
                            when {
                                tag.area != null -> tag
@@ -151,13 +160,13 @@ class GalleryDialog(context: Context, private val glide: RequestManager, private
                    }
                )
            ).filter {
-                (_, content) -> content.isNotEmpty()
+                    (_, content) -> content.isNotEmpty()
            }.forEach { (title, content) ->
-                inflater.inflate(R.layout.item_gallery_details, gallery_details_contents, false).apply {
-                    gallery_details_type.setText(title)
+                GalleryDialogTagsBinding.inflate(layoutInflater, contents, true).apply {
+                    type.setText(title)

                    content.forEach { tag ->
-                        gallery_details_tags.addView(
+                        tags.addView(
                            TagChip(context, tag).apply {
                                setOnClickListener {
                                    onChipClickedHandler.forEach { handler ->
@@ -167,43 +176,36 @@ class GalleryDialog(context: Context, private val glide: RequestManager, private
                            }
                        )
                    }
-                }.let {
-                    gallery_details_contents.addView(it)
                }
            }
-        }.let {
-            gallery_contents.addView(it)
        }
    }

    private fun addThumbnails(gallery: Gallery) {
-        val inflater = LayoutInflater.from(context)
-
-        inflater.inflate(R.layout.dialog_gallery_details, gallery_contents, false).apply {
-            gallery_details.setText(R.string.gallery_thumbnails)
+        GalleryDialogDetailsBinding.inflate(layoutInflater, binding.contents, true).apply {
+            type.setText(R.string.gallery_thumbnails)

            val pager = ViewPager2(context).apply {
-                adapter = ThumbnailPageAdapter(glide, gallery.thumbnails)
+                adapter = ThumbnailPageAdapter(gallery.thumbnails)
+                layoutParams = ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT)
            }

-            gallery_details_contents.addView(
+            contents.addView(
                pager,
                LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT)
            )

-            LayoutInflater.from(context).inflate(R.layout.dialog_gallery_dotindicator, gallery_details_contents)
-
-            gallery_dotindicator.setViewPager2(pager)
-        }.let {
-            gallery_contents.addView(it)
+            // TODO: Change to direct allocation
+            GalleryDialogDotindicatorBinding.inflate(layoutInflater, contents, true).apply {
+                dotindicator.setViewPager2(pager)
+            }
        }
    }

    private fun addRelated(gallery: Gallery) {
-        val inflater = LayoutInflater.from(context)
-        val galleries = ArrayList<Int>()
+        val galleries = mutableListOf<Int>()

-        val adapter = GalleryBlockAdapter(glide, galleries).apply {
+        val adapter = GalleryBlockAdapter(galleries).apply {
            onChipClickedHandler.add { tag ->
                this@GalleryDialog.onChipClickedHandler.forEach { handler ->
                    handler.invoke(tag)
@@ -211,10 +213,10 @@ class GalleryDialog(context: Context, private val glide: RequestManager, private
            }
        }

-        inflater.inflate(R.layout.dialog_gallery_details, gallery_contents, false).apply {
-            gallery_details.setText(R.string.gallery_related)
+        GalleryDialogDetailsBinding.inflate(layoutInflater, binding.contents, true).apply {
+            type.setText(R.string.gallery_related)

-            RecyclerView(context).apply {
+            contents.addView(RecyclerView(context).apply {
                layoutManager = LinearLayoutManager(context)
                this.adapter = adapter

@@ -223,14 +225,9 @@ class GalleryDialog(context: Context, private val glide: RequestManager, private
                        context.startActivity(Intent(context, ReaderActivity::class.java).apply {
                            putExtra("galleryID", galleries[position])
                        })
-                        histories.add(galleries[position])
                    }
                    onItemLongClickListener = { _, position, _ ->
-                        GalleryDialog(
-                            context,
-                            glide,
-                            galleries[position]
-                        ).apply {
+                        GalleryDialog(context, galleries[position]).apply {
                            onChipClickedHandler.add { tag ->
                                this@GalleryDialog.onChipClickedHandler.forEach { it.invoke(tag) }
                            }
@@ -239,22 +236,18 @@ class GalleryDialog(context: Context, private val glide: RequestManager, private
                        true
                    }
                }
-            }.let {
-                gallery_details_contents.addView(it, LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT))
-            }
-        }.let {
-            gallery_contents.addView(it)
-        }
+            })

-        CoroutineScope(Dispatchers.IO).launch {
-            gallery.related.forEach { galleryID ->
-                Cache.getInstance(context, galleryID).getGalleryBlock()?.let {
-                    galleries.add(galleryID)
+            CoroutineScope(Dispatchers.IO).launch {
+                gallery.related.forEach { galleryID ->
+                    Cache.getInstance(context, galleryID).getGalleryBlock()?.let {
+                        galleries.add(galleryID)
+                    }
                }
-            }

-            withContext(Dispatchers.Main) {
-                adapter.notifyDataSetChanged()
+                withContext(Dispatchers.Main) {
+                    adapter.notifyDataSetChanged()
+                }
            }
        }
    }
--- a/app/src/main/java/xyz/quaver/pupil/ui/dialog/MirrorDialog.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/dialog/MirrorDialog.kt
@@ -1,91 +0,0 @@
-/*
- *     Pupil, Hitomi.la viewer for Android
- *     Copyright (C) 2020  tom5079
- *
- *     This program is free software: you can redistribute it and/or modify
- *     it under the terms of the GNU General Public License as published by
- *     the Free Software Foundation, either version 3 of the License, or
- *     (at your option) any later version.
- *
- *     This program is distributed in the hope that it will be useful,
- *     but WITHOUT ANY WARRANTY; without even the implied warranty of
- *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *     GNU General Public License for more details.
- *
- *     You should have received a copy of the GNU General Public License
- *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package xyz.quaver.pupil.ui.dialog
-
-import android.annotation.SuppressLint
-import android.app.Dialog
-import android.content.Context
-import android.os.Bundle
-import android.view.View
-import androidx.appcompat.app.AlertDialog
-import androidx.recyclerview.widget.DividerItemDecoration
-import androidx.recyclerview.widget.ItemTouchHelper
-import androidx.recyclerview.widget.LinearLayoutManager
-import androidx.recyclerview.widget.RecyclerView
-import xyz.quaver.pupil.R
-import xyz.quaver.pupil.adapters.MirrorAdapter
-import xyz.quaver.pupil.util.Preferences
-
-class MirrorDialog(context: Context) : AlertDialog(context) {
-
-    class ItemTouchHelperCallback : ItemTouchHelper.Callback() {
-
-        var onMoveItem : ((Int, Int) -> (Unit))? = null
-
-        override fun getMovementFlags(
-            recyclerView: RecyclerView,
-            viewHolder: RecyclerView.ViewHolder
-        ) = makeMovementFlags(ItemTouchHelper.UP or ItemTouchHelper.DOWN, 0)
-
-        override fun onMove(
-            recyclerView: RecyclerView,
-            viewHolder: RecyclerView.ViewHolder,
-            target: RecyclerView.ViewHolder
-        ): Boolean {
-            onMoveItem?.invoke(viewHolder.adapterPosition, target.adapterPosition)
-            return true
-        }
-
-        override fun onSwiped(viewHolder: RecyclerView.ViewHolder, direction: Int) {
-
-        }
-    }
-
-    @SuppressLint("InflateParams")
-    override fun onCreate(savedInstanceState: Bundle?) {
-        setTitle(R.string.settings_mirror_title)
-        setView(build())
-        setButton(Dialog.BUTTON_POSITIVE, context.getString(android.R.string.ok)) { _, _ -> }
-
-        super.onCreate(savedInstanceState)
-    }
-
-    private fun build() : View {
-        return RecyclerView(context).apply recyclerview@{
-            addItemDecoration(DividerItemDecoration(context, DividerItemDecoration.VERTICAL))
-            layoutManager = LinearLayoutManager(context)
-            adapter = MirrorAdapter(context).apply adapter@{
-                val itemTouchHelper = ItemTouchHelper(ItemTouchHelperCallback().apply {
-                    onMoveItem = this@adapter.onItemMove
-                }).apply {
-                    attachToRecyclerView(this@recyclerview)
-                }
-
-                onStartDrag = {
-                    itemTouchHelper.startDrag(it)
-                }
-
-                onItemMoved = {
-                    Preferences["mirrors"] = it.joinToString(">")
-                }
-            }
-        }
-    }
-
-}
--- a/app/src/main/java/xyz/quaver/pupil/ui/dialog/ProxyDialogFragment.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/dialog/ProxyDialogFragment.kt
@@ -18,58 +18,60 @@

 package xyz.quaver.pupil.ui.dialog

-import android.annotation.SuppressLint
 import android.app.Dialog
 import android.content.Context
 import android.os.Bundle
-import android.view.LayoutInflater
 import android.view.View
-import android.view.ViewGroup
 import android.widget.AdapterView
 import android.widget.ArrayAdapter
-import kotlinx.android.synthetic.main.dialog_proxy.view.*
+import androidx.appcompat.app.AlertDialog
+import androidx.fragment.app.DialogFragment
 import kotlinx.serialization.encodeToString
 import kotlinx.serialization.json.Json
 import xyz.quaver.pupil.R
 import xyz.quaver.pupil.client
 import xyz.quaver.pupil.clientBuilder
 import xyz.quaver.pupil.clientHolder
+import xyz.quaver.pupil.databinding.ProxyDialogBinding
 import xyz.quaver.pupil.util.Preferences
 import xyz.quaver.pupil.util.ProxyInfo
 import xyz.quaver.pupil.util.getProxyInfo
 import xyz.quaver.pupil.util.proxyInfo
 import java.net.Proxy

-class ProxyDialog(context: Context) : Dialog(context) {
+class ProxyDialogFragment : DialogFragment() {

-    override fun onCreate(savedInstanceState: Bundle?) {
-        setContentView(build())
-        window?.attributes?.width = ViewGroup.LayoutParams.MATCH_PARENT
+    private var _binding: ProxyDialogBinding? = null
+    private val binding get() = _binding!!

-        super.onCreate(savedInstanceState)
+    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+        _binding = ProxyDialogBinding.inflate(layoutInflater)
+
+        initView()
+
+        return AlertDialog.Builder(requireContext()).apply {
+            setView(binding.root)
+        }.create()
    }

-    @SuppressLint("InflateParams")
-    private fun build() : View {
+    private fun initView() {
        val proxyInfo = getProxyInfo()

-        val view = LayoutInflater.from(context).inflate(R.layout.dialog_proxy, null)
-
        val enabler = { enable: Boolean ->
-            view?.proxy_addr?.isEnabled = enable
-            view?.proxy_port?.isEnabled = enable
-            view?.proxy_username?.isEnabled = enable
-            view?.proxy_password?.isEnabled = enable
+            binding.addr.isEnabled = enable
+            binding.port.isEnabled = enable
+            binding.username.isEnabled = enable
+            binding.password.isEnabled = enable

            if (!enable) {
-                view?.proxy_addr?.text = null
-                view?.proxy_port?.text = null
-                view?.proxy_username?.text = null
-                view?.proxy_password?.text = null
+                binding.addr.text = null
+                binding.port.text = null
+                binding.username.text = null
+                binding.password.text = null
            }
        }

-        with(view.proxy_type_selector) {
+        with(binding.typeSelector) {
            adapter = ArrayAdapter(
                context,
                android.R.layout.simple_spinner_dropdown_item,
@@ -87,29 +89,29 @@ class ProxyDialog(context: Context) : Dialog(context) {
            }
        }

-        view.proxy_addr.setText(proxyInfo.host)
-        view.proxy_port.setText(proxyInfo.port?.toString())
-        view.proxy_username.setText(proxyInfo.username)
-        view.proxy_password.setText(proxyInfo.password)
+        binding.addr.setText(proxyInfo.host)
+        binding.port.setText(proxyInfo.port?.toString())
+        binding.username.setText(proxyInfo.username)
+        binding.password.setText(proxyInfo.password)

        enabler.invoke(proxyInfo.type != Proxy.Type.DIRECT)

-        view.proxy_cancel.setOnClickListener {
+        binding.cancelButton.setOnClickListener {
            dismiss()
        }

-        view.proxy_ok.setOnClickListener {
-            val type = Proxy.Type.values()[view.proxy_type_selector.selectedItemPosition]
-            val addr = view.proxy_addr.text?.toString()
-            val port = view.proxy_port.text?.toString()?.toIntOrNull()
-            val username = view.proxy_username.text?.toString()
-            val password = view.proxy_password.text?.toString()
+        binding.okButton.setOnClickListener {
+            val type = Proxy.Type.values()[binding.typeSelector.selectedItemPosition]
+            val addr = binding.addr.text?.toString()
+            val port = binding.port.text?.toString()?.toIntOrNull()
+            val username = binding.username.text?.toString()
+            val password = binding.password.text?.toString()

            if (type != Proxy.Type.DIRECT) {
                if (addr == null || addr.isEmpty())
-                    view.proxy_addr.error = context.getText(R.string.proxy_dialog_error)
+                    binding.addr.error = requireContext().getText(R.string.proxy_dialog_error)
                if (port == null)
-                    view.proxy_port.error = context.getText(R.string.proxy_dialog_error)
+                    binding.port.error = requireContext().getText(R.string.proxy_dialog_error)

                if (addr == null || addr.isEmpty() || port == null)
                    return@setOnClickListener
@@ -126,8 +128,6 @@ class ProxyDialog(context: Context) : Dialog(context) {

            dismiss()
        }
-
-        return view
    }

 }
--- a/app/src/main/java/xyz/quaver/pupil/ui/fragment/ManageFavoritesFragment.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/fragment/ManageFavoritesFragment.kt
@@ -18,25 +18,72 @@

 package xyz.quaver.pupil.ui.fragment

+import android.app.Activity
 import android.content.Intent
+import android.content.res.Resources
+import android.graphics.PorterDuff
+import android.graphics.PorterDuffColorFilter
 import android.os.Bundle
+import android.util.Log
 import android.widget.EditText
 import android.widget.TextView
+import android.widget.Toast
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.appcompat.app.AlertDialog
 import androidx.core.content.ContextCompat
+import androidx.core.content.FileProvider
+import androidx.core.graphics.drawable.DrawableCompat
 import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
+import androidx.swiperefreshlayout.widget.CircularProgressDrawable
 import com.google.android.material.snackbar.Snackbar
+import kotlinx.coroutines.MainScope
+import kotlinx.coroutines.launch
+import kotlinx.datetime.LocalDate
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.buildJsonObject
+import kotlinx.serialization.json.decodeFromJsonElement
 import okhttp3.*
+import xyz.quaver.io.FileX
+import xyz.quaver.io.util.readText
 import xyz.quaver.pupil.R
 import xyz.quaver.pupil.client
+import xyz.quaver.pupil.favoriteTags
 import xyz.quaver.pupil.favorites
+import xyz.quaver.pupil.types.Tag
+import xyz.quaver.pupil.util.get
 import xyz.quaver.pupil.util.restore
 import java.io.File
 import java.io.IOException
+import kotlin.math.roundToInt

 class ManageFavoritesFragment : PreferenceFragmentCompat() {

+    private val requestBackupFileLauncher = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->
+        if (result.resultCode != Activity.RESULT_OK) {
+            return@registerForActivityResult
+        }
+
+        val uri = result.data?.data ?: return@registerForActivityResult
+        val context = context ?: return@registerForActivityResult
+        val view = view ?: return@registerForActivityResult
+
+        val backupData = runCatching {
+            FileX(context, uri).readText()?.let { Json.parseToJsonElement(it) }
+        }.getOrNull() ?: run{
+            Snackbar.make(view, context.getString(R.string.error), Toast.LENGTH_LONG).show()
+            return@registerForActivityResult
+        }
+
+        val newFavorites = backupData["favorites"]?.let { Json.decodeFromJsonElement<List<Int>>(it) }.orEmpty()
+        val newFavoriteTags = backupData["favorite_tags"]?.let { Json.decodeFromJsonElement<List<Tag>>(it) }.orEmpty()
+
+        favorites.addAll(newFavorites)
+        favoriteTags.addAll(newFavoriteTags)
+
+        Snackbar.make(view, context.getString(R.string.settings_restore_success, newFavorites.size + newFavoriteTags.size), Snackbar.LENGTH_LONG).show()
+    }
+
    override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
        setPreferencesFromResource(R.xml.manage_favorites_preferences, rootKey)

@@ -47,57 +94,44 @@ class ManageFavoritesFragment : PreferenceFragmentCompat() {
        val context = context ?: return

        findPreference<Preference>("backup")?.setOnPreferenceClickListener {
-            val request = Request.Builder()
-                .url(context.getString(R.string.backup_url))
-                .post(
-                    FormBody.Builder()
-                        .add("f:1", File(ContextCompat.getDataDir(context), "favorites.json").readText())
-                        .build()
-                ).build()
+            val favorites = runCatching {
+                Json.parseToJsonElement(File(ContextCompat.getDataDir(context), "favorites.json").readText())
+            }.getOrNull()
+            val favoriteTags = kotlin.runCatching {
+                Json.parseToJsonElement(File(ContextCompat.getDataDir(context), "favorites_tags.json").readText())
+            }.getOrNull()

-            client.newCall(request).enqueue(object: Callback {
-                override fun onFailure(call: Call, e: IOException) {
-                    val view = view ?: return
-                    Snackbar.make(view, R.string.settings_backup_failed, Snackbar.LENGTH_LONG).show()
+            val favoriteJson = buildJsonObject {
+                favorites?.let {
+                    put("favorites", it)
                }
-
-                override fun onResponse(call: Call, response: Response) {
-                    if (response.code() != 200) {
-                        response.close()
-                        return
-                    }
-
-                    Intent(Intent.ACTION_SEND).apply {
-                        type = "text/plain"
-                        putExtra(Intent.EXTRA_TEXT, response.body()?.use { it.string() }?.replace("\n", ""))
-                    }.let {
-                        getContext()?.startActivity(Intent.createChooser(it, getString(R.string.settings_backup_share)))
-                    }
+                favoriteTags?.let {
+                    put("favorite_tags", it)
                }
-            })
+            }
+
+            val backupFile = File(context.filesDir, "pupil-backup.json").also {
+                it.writeText(favoriteJson.toString())
+            }
+
+            Intent(Intent.ACTION_SEND).apply {
+                val uri = FileProvider.getUriForFile(context, "${context.packageName}.provider", backupFile)
+                setDataAndType(uri, "application/json")
+                addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
+                putExtra(Intent.EXTRA_STREAM, uri)
+            }.let {
+                context.startActivity(Intent.createChooser(it, getString(R.string.settings_backup_share)))
+            }

            true
        }
        findPreference<Preference>("restore")?.setOnPreferenceClickListener {
-            val editText = EditText(context).apply {
-                setText(context.getString(R.string.backup_url), TextView.BufferType.EDITABLE)
+            val intent = Intent(Intent.ACTION_OPEN_DOCUMENT).apply {
+                addCategory(Intent.CATEGORY_OPENABLE)
+                type = "*/*"
            }

-            AlertDialog.Builder(context)
-                .setTitle(R.string.settings_restore_title)
-                .setView(editText)
-                .setPositiveButton(android.R.string.ok) { _, _ ->
-                    restore(editText.text.toString(),
-                        onFailure = onFailure@{
-                            val view = view ?: return@onFailure
-                            Snackbar.make(view, R.string.settings_restore_failed, Snackbar.LENGTH_LONG).show()
-                        }, onSuccess = onSuccess@{
-                            val view = view ?: return@onSuccess
-                            Snackbar.make(view, context.getString(R.string.settings_restore_success, it.size), Snackbar.LENGTH_LONG).show()
-                        })
-                }.setNegativeButton(android.R.string.cancel) { _, _ ->
-                    // Do Nothing
-                }.show()
+            requestBackupFileLauncher.launch(intent)

            true
        }
--- a/app/src/main/java/xyz/quaver/pupil/ui/fragment/ManageStorageFragment.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/fragment/ManageStorageFragment.kt
@@ -18,21 +18,38 @@

 package xyz.quaver.pupil.ui.fragment

+import android.graphics.ColorFilter
+import android.graphics.PorterDuff
+import android.graphics.PorterDuffColorFilter
 import android.os.Bundle
+import android.widget.Toast
 import androidx.appcompat.app.AlertDialog
+import androidx.core.content.ContextCompat
 import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
+import androidx.swiperefreshlayout.widget.CircularProgressDrawable
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.launch
+import kotlinx.serialization.decodeFromString
+import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.Json
 import xyz.quaver.io.FileX
+import xyz.quaver.io.SAFileX
 import xyz.quaver.io.util.deleteRecursively
+import xyz.quaver.io.util.getChild
+import xyz.quaver.io.util.readText
+import xyz.quaver.io.util.writeText
 import xyz.quaver.pupil.R
 import xyz.quaver.pupil.histories
+import xyz.quaver.pupil.hitomi.json
 import xyz.quaver.pupil.util.byteToString
+import xyz.quaver.pupil.util.downloader.Cache
 import xyz.quaver.pupil.util.downloader.DownloadManager
+import xyz.quaver.pupil.util.downloader.Metadata
 import java.io.File
+import kotlin.math.roundToInt

 class ManageStorageFragment : PreferenceFragmentCompat(), Preference.OnPreferenceClickListener {

@@ -44,12 +61,10 @@ class ManageStorageFragment : PreferenceFragmentCompat(), Preference.OnPreferenc
        initPreferences()
    }

-    override fun onPreferenceClick(preference: Preference?): Boolean {
+    override fun onPreferenceClick(preference: Preference): Boolean {
        val context = context ?: return false

        with(preference) {
-            this ?: return false
-
            when (key) {
                "delete_cache" -> {
                    val dir = File(context.cacheDir, "imageCache")
@@ -61,6 +76,8 @@ class ManageStorageFragment : PreferenceFragmentCompat(), Preference.OnPreferenc
                            if (dir.exists())
                                dir.deleteRecursively()

+                            Cache.instances.clear()
+
                            summary = context.getString(R.string.settings_storage_usage, byteToString(0))
                            CoroutineScope(Dispatchers.IO).launch {
                                var size = 0L
@@ -77,6 +94,48 @@ class ManageStorageFragment : PreferenceFragmentCompat(), Preference.OnPreferenc
                        setNegativeButton(android.R.string.cancel) { _, _ -> }
                    }.show()
                }
+                "recover_downloads" -> {
+                    val density = context.resources.displayMetrics.density
+                    this.icon = object: CircularProgressDrawable(context) {
+                        override fun getIntrinsicHeight() = (24*density).roundToInt()
+                        override fun getIntrinsicWidth() = (24*density).roundToInt()
+                    }.apply {
+                        setStyle(CircularProgressDrawable.DEFAULT)
+                        colorFilter = PorterDuffColorFilter(ContextCompat.getColor(context, R.color.colorAccent), PorterDuff.Mode.SRC_IN)
+                        start()
+                    }
+
+                    val downloadManager = DownloadManager.getInstance(context)
+
+                    val downloadFolderMap = downloadManager.downloadFolderMap
+
+                    downloadFolderMap.clear()
+
+                    downloadManager.downloadFolder.listFiles { file -> file.isDirectory }?.forEach { folder ->
+                        val metadataFile = FileX(context, folder, ".metadata")
+
+                        if (!metadataFile.exists()) return@forEach
+
+                        val metadata = metadataFile.readText()?.let {
+                            runCatching {
+                                json.decodeFromString<Metadata>(it)
+                            }.getOrNull()
+                        } ?: return@forEach
+
+                        val galleryID = metadata.galleryBlock?.id ?: metadata.galleryInfo?.id?.toIntOrNull() ?: return@forEach
+
+                        downloadFolderMap[galleryID] = folder.name
+                    }
+
+                    downloadManager.downloadFolderMap.putAll(downloadFolderMap)
+                    val downloads = FileX(context, downloadManager.downloadFolder, ".download")
+
+                    if (!downloads.exists()) downloads.createNewFile()
+                    downloads.writeText(Json.encodeToString(downloadFolderMap))
+
+                    this.icon = null
+                    Toast.makeText(context, android.R.string.ok, Toast.LENGTH_SHORT).show()
+                }
                "delete_downloads" -> {
                    val dir = DownloadManager.getInstance(context).downloadFolder

@@ -91,7 +150,12 @@ class ManageStorageFragment : PreferenceFragmentCompat(), Preference.OnPreferenc
                                }

                                if (dir.exists())
-                                    dir.listFiles()?.forEach { (it as? FileX)?.deleteRecursively() }
+                                    dir.listFiles()?.forEach {
+                                        when (it) {
+                                            is FileX -> it.deleteRecursively()
+                                            else -> it.deleteRecursively()
+                                        }
+                                    }

                                job = launch {
                                    var size = 0L
@@ -183,6 +247,12 @@ class ManageStorageFragment : PreferenceFragmentCompat(), Preference.OnPreferenc

            onPreferenceClickListener = this@ManageStorageFragment
        }
+
+        with(findPreference<Preference>("recover_downloads")) {
+            this ?: return@with
+
+            onPreferenceClickListener = this@ManageStorageFragment
+        }
    }

    override fun onDestroy() {
--- a/app/src/main/java/xyz/quaver/pupil/ui/fragment/PINLockFragment.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/fragment/PINLockFragment.kt
@@ -24,30 +24,34 @@ import android.view.View
 import android.view.ViewGroup
 import androidx.fragment.app.Fragment
 import com.andrognito.pinlockview.PinLockListener
-import kotlinx.android.synthetic.main.fragment_pin_lock.view.*
-import xyz.quaver.pupil.R
+import xyz.quaver.pupil.databinding.PinLockFragmentBinding

-class PINLockFragment : Fragment(), PinLockListener {
+class PINLockFragment : Fragment() {
+
+    private var _binding: PinLockFragmentBinding? = null
+    val binding get() = _binding!!

    var onPINEntered: ((String) -> Unit)? = null

-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        return inflater.inflate(R.layout.fragment_pin_lock, container, false).apply {
-            pin_lock_view.attachIndicatorDots(indicator_dots)
-            pin_lock_view.setPinLockListener(this@PINLockFragment)
-        }
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View {
+        _binding = PinLockFragmentBinding.inflate(inflater, container, false)
+
+        binding.pinLockView.attachIndicatorDots(binding.indicatorDots)
+        binding.pinLockView.setPinLockListener(object: PinLockListener {
+            override fun onComplete(p0: String?) {
+                onPINEntered?.invoke(p0 ?: "")
+            }
+
+            override fun onEmpty() {}
+            override fun onPinChange(p0: Int, p1: String?) {}
+        })
+
+        return binding.root
    }

-    override fun onComplete(pin: String?) {
-        onPINEntered?.invoke(pin!!)
-    }
-
-    override fun onEmpty() {
-
-    }
-
-    override fun onPinChange(pinLength: Int, intermediatePin: String?) {
-
+    override fun onDestroy() {
+        super.onDestroy()
+        _binding = null
    }

 }
--- a/app/src/main/java/xyz/quaver/pupil/ui/fragment/PatternLockFragment.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/fragment/PatternLockFragment.kt
@@ -26,38 +26,36 @@ import androidx.fragment.app.Fragment
 import com.andrognito.patternlockview.PatternLockView
 import com.andrognito.patternlockview.listener.PatternLockViewListener
 import com.andrognito.patternlockview.utils.PatternLockUtils
-import kotlinx.android.synthetic.main.fragment_pattern_lock.*
-import kotlinx.android.synthetic.main.fragment_pattern_lock.view.*
-import xyz.quaver.pupil.R
+import xyz.quaver.pupil.databinding.PatternLockFragmentBinding

-class PatternLockFragment : Fragment(), PatternLockViewListener {
+class PatternLockFragment : Fragment() {
+
+    private var _binding: PatternLockFragmentBinding? = null
+    val binding get() = _binding!!

    var onPatternDrawn: ((String) -> Unit)? = null

    override fun onCreateView(
        inflater: LayoutInflater, container: ViewGroup?,
        savedInstanceState: Bundle?
-    ): View? {
-        return inflater.inflate(R.layout.fragment_pattern_lock, container, false).apply {
-            lock_pattern_view.addPatternLockListener(this@PatternLockFragment)
-        }
+    ): View {
+        _binding = PatternLockFragmentBinding.inflate(inflater, container, false)
+        binding.patternLockView.addPatternLockListener(object: PatternLockViewListener {
+            override fun onComplete(pattern: MutableList<PatternLockView.Dot>?) {
+                val password = PatternLockUtils.patternToMD5(binding.patternLockView, pattern)
+                onPatternDrawn?.invoke(password)
+            }
+
+            override fun onCleared() {}
+            override fun onProgress(progressPattern: MutableList<PatternLockView.Dot>?) {}
+            override fun onStarted() {}
+        })
+        return binding.root
    }

-    override fun onCleared() {
-
-    }
-
-    override fun onComplete(pattern: MutableList<PatternLockView.Dot>?) {
-        val password = PatternLockUtils.patternToMD5(lock_pattern_view, pattern)
-        onPatternDrawn?.invoke(password)
-    }
-
-    override fun onProgress(progressPattern: MutableList<PatternLockView.Dot>?) {
-
-    }
-
-    override fun onStarted() {
-
+    override fun onDestroy() {
+        super.onDestroy()
+        _binding = null
    }

 }
--- a/app/src/main/java/xyz/quaver/pupil/ui/fragment/SettingsFragment.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/fragment/SettingsFragment.kt
@@ -22,25 +22,29 @@ import android.app.Activity
 import android.content.*
 import android.os.Bundle
 import android.widget.Toast
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.appcompat.app.AppCompatDelegate
-import androidx.preference.Preference
-import androidx.preference.PreferenceCategory
-import androidx.preference.PreferenceFragmentCompat
-import androidx.preference.SwitchPreferenceCompat
+import androidx.preference.*
 import com.google.android.gms.oss.licenses.OssLicensesMenuActivity
-import com.google.android.material.snackbar.Snackbar
-import kotlinx.serialization.decodeFromString
-import kotlinx.serialization.json.Json
+import com.google.firebase.crashlytics.FirebaseCrashlytics
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import okhttp3.Dispatcher
 import xyz.quaver.io.FileX
 import xyz.quaver.io.util.getChild
 import xyz.quaver.pupil.R
-import xyz.quaver.pupil.favorites
+import xyz.quaver.pupil.client
+import xyz.quaver.pupil.clientBuilder
+import xyz.quaver.pupil.clientHolder
+import xyz.quaver.pupil.types.SendLogException
 import xyz.quaver.pupil.ui.LockActivity
 import xyz.quaver.pupil.ui.SettingsActivity
 import xyz.quaver.pupil.ui.dialog.*
 import xyz.quaver.pupil.util.*
 import xyz.quaver.pupil.util.downloader.DownloadManager
-import java.nio.charset.Charset
+import java.util.*
+import java.util.concurrent.Executors

 class SettingsFragment :
    PreferenceFragmentCompat(),
@@ -48,6 +52,16 @@ class SettingsFragment :
    Preference.OnPreferenceChangeListener,
    SharedPreferences.OnSharedPreferenceChangeListener {

+    private val lockLauncher = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) {
+        if (it.resultCode == Activity.RESULT_OK) {
+            parentFragmentManager
+                .beginTransaction()
+                .replace(R.id.settings, LockSettingsFragment())
+                .addToBackStack("Lock")
+                .commitAllowingStateLoss()
+        }
+    }
+
    override fun onResume() {
        super.onResume()

@@ -66,10 +80,8 @@ class SettingsFragment :
        }
    }

-    override fun onPreferenceClick(preference: Preference?): Boolean {
+    override fun onPreferenceClick(preference: Preference): Boolean {
        with (preference) {
-            this ?: return false
-
            when (key) {
                "app_version" -> {
                    checkUpdate(activity as SettingsActivity, true)
@@ -78,32 +90,28 @@ class SettingsFragment :
                    DownloadLocationDialogFragment().show(parentFragmentManager, "Download Location Dialog")
                }
                "default_query" -> {
-                    DefaultQueryDialog(requireContext()).apply {
+                    DefaultQueryDialog().apply {
                        onPositiveButtonClickListener = { newTags ->
                            Preferences["default_query"] = newTags.toString()
                            summary = newTags.toString()
                        }
-                    }.show()
+                    }.show(parentFragmentManager, "Default Query Dialog")
                }
                "app_lock" -> {
                    val intent = Intent(requireContext(), LockActivity::class.java).apply {
                        putExtra("force", true)
                    }
-                    startActivityForResult(intent, R.id.request_lock.normalizeID())
-                }
-                "mirrors" -> {
-                    MirrorDialog(requireContext())
-                        .show()
+                    lockLauncher.launch(intent)
                }
                "proxy" -> {
-                    ProxyDialog(requireContext())
-                        .show()
+                    ProxyDialogFragment().show(parentFragmentManager, "Proxy Dialog")
                }
                "user_id" -> {
+                    FirebaseCrashlytics.getInstance().recordException(SendLogException())
                    (context.getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager).setPrimaryClip(
                        ClipData.newPlainText("user_id", Preferences.get<String>("user_id"))
                    )
-                    Toast.makeText(context, R.string.settings_user_id_toast, Toast.LENGTH_SHORT).show()
+                    Toast.makeText(context, R.string.copied_to_clipboard, Toast.LENGTH_SHORT).show()
                }
                else -> return false
            }
@@ -112,11 +120,12 @@ class SettingsFragment :
        return true
    }

-    override fun onPreferenceChange(preference: Preference?, newValue: Any?): Boolean {
+    override fun onPreferenceChange(preference: Preference, newValue: Any?): Boolean {
        with (preference) {
-            this ?: return false
-
            when (key) {
+                "tag_translation" -> {
+                    updateTranslations()
+                }
                "nomedia" -> {
                    val create = (newValue as? Boolean) ?: return false

@@ -150,7 +159,7 @@ class SettingsFragment :

            when (key) {
                "proxy" -> {
-                    summary = context?.let { getProxyInfo().type.name }
+                    summary = context.let { getProxyInfo().type.name }
                }
                "download_folder" -> {
                    summary = FileX(context, Preferences.get<String>("download_folder")).canonicalPath
@@ -158,6 +167,18 @@ class SettingsFragment :
                "download_folder_name" -> {
                    summary = Preferences["download_folder_name", "[-id-] -title-"]
                }
+                "max_concurrent_download" -> {
+                    val newValue = Preferences.get<String>(key).toIntOrNull() ?: 0
+
+                    if (newValue == 0)
+                        clientBuilder.dispatcher(Dispatcher())
+                    else
+                        clientBuilder.dispatcher((Dispatcher(Executors.newFixedThreadPool(newValue))))
+
+                    clientHolder = null
+                    client
+                }
+                else -> return
            }
        }
    }
@@ -237,14 +258,32 @@ class SettingsFragment :

                            onPreferenceClickListener = this@SettingsFragment
                        }
-                        "mirrors" -> {
-                            onPreferenceClickListener = this@SettingsFragment
-                        }
                        "proxy" -> {
                            summary = getProxyInfo().type.name

                            onPreferenceClickListener = this@SettingsFragment
                        }
+                        "tag_translation" -> {
+                            this as ListPreference
+
+                            isEnabled = false
+
+                            CoroutineScope(Dispatchers.IO).launch {
+                                kotlin.runCatching {
+                                    val languages = getAvailableLanguages().distinct().toTypedArray()
+
+                                    entries = languages.map { Locale(it).let { loc -> loc.getDisplayLanguage(loc) } }.toTypedArray()
+                                    entryValues = languages
+
+                                    launch(Dispatchers.Main) {
+                                        isEnabled = true
+                                    }
+                                }
+                            }
+
+                            onPreferenceChangeListener = this@SettingsFragment
+
+                        }
                        "dark_mode" -> {
                            onPreferenceChangeListener = this@SettingsFragment
                        }
@@ -257,7 +296,7 @@ class SettingsFragment :
                        }
                        "oss" -> {
                            setOnPreferenceClickListener {
-                                context?.startActivity(Intent(context, OssLicensesMenuActivity::class.java))
+                                context.startActivity(Intent(context, OssLicensesMenuActivity::class.java))
                                true
                            }
                        }
@@ -267,19 +306,4 @@ class SettingsFragment :
            }
        }
    }
-
-    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
-        when(requestCode) {
-            R.id.request_lock.normalizeID() -> {
-                if (resultCode == Activity.RESULT_OK) {
-                    parentFragmentManager
-                        .beginTransaction()
-                        .replace(R.id.settings, LockSettingsFragment())
-                        .addToBackStack("Lock")
-                        .commitAllowingStateLoss()
-                }
-            }
-            else -> super.onActivityResult(requestCode, resultCode, data)
-        }
-    }
 }
--- a/app/src/main/java/com/arlib/floatingsearchview/FloatingSearchViewDayNight.kt
+++ b/app/src/main/java/com/arlib/floatingsearchview/FloatingSearchViewDayNight.kt
@@ -16,16 +16,16 @@
 *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

-package com.arlib.floatingsearchview
+package xyz.quaver.pupil.ui.view

 import android.content.Context
 import android.graphics.PorterDuff
 import android.graphics.PorterDuffColorFilter
 import android.graphics.drawable.Animatable
-import android.os.Parcelable
 import android.text.Editable
 import android.text.TextWatcher
 import android.util.AttributeSet
+import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.inputmethod.EditorInfo
@@ -36,32 +36,32 @@ import androidx.core.content.ContextCompat
 import androidx.core.content.res.ResourcesCompat
 import androidx.swiperefreshlayout.widget.CircularProgressDrawable
 import androidx.vectordrawable.graphics.drawable.AnimatedVectorDrawableCompat
-import com.arlib.floatingsearchview.suggestions.SearchSuggestionsAdapter
-import com.arlib.floatingsearchview.suggestions.model.SearchSuggestion
-import com.arlib.floatingsearchview.util.view.SearchInputView
+import xyz.quaver.floatingsearchview.FloatingSearchView
+import xyz.quaver.floatingsearchview.suggestions.model.SearchSuggestion
+import xyz.quaver.floatingsearchview.util.view.SearchInputView
 import xyz.quaver.pupil.R
 import xyz.quaver.pupil.favoriteTags
 import xyz.quaver.pupil.types.*
 import java.util.*

-class FloatingSearchViewDayNight @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null) :
+class FloatingSearchView @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null) :
    FloatingSearchView(context, attrs),
    FloatingSearchView.OnSearchListener,
-    SearchSuggestionsAdapter.OnBindSuggestionCallback,
    TextWatcher
 {
-
    private val searchInputView = findViewById<SearchInputView>(R.id.search_bar_text)

    var onHistoryDeleteClickedListener: ((String) -> Unit)? = null
    var onFavoriteHistorySwitchClickListener: (() -> Unit)? = null

    init {
-        searchInputView.imeOptions = EditorInfo.IME_FLAG_NO_EXTRACT_UI
+        searchInputView.imeOptions = EditorInfo.IME_FLAG_NO_EXTRACT_UI or searchInputView.imeOptions

        searchInputView.addTextChangedListener(this)
-        setOnSearchListener(this)
-        setOnBindSuggestionCallback(this)
+        onSearchListener = this
+        onBindSuggestionCallback = { binding, item, itemPosition ->
+            onBindSuggestion(binding.root, binding.leftIcon, binding.body, item, itemPosition)
+        }
    }

    override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {
@@ -82,15 +82,18 @@ class FloatingSearchViewDayNight @JvmOverloads constructor(context: Context, att
    override fun onSuggestionClicked(searchSuggestion: SearchSuggestion?) {
        when (searchSuggestion) {
            is TagSuggestion -> {
-                with(searchInputView.text) {
-                    delete(if (lastIndexOf(' ') == -1) 0 else lastIndexOf(' ')+1, length)
-                    append("${searchSuggestion.n}:${searchSuggestion.s.replace(Regex("\\s"), "_")} ")
+                val tag = "${searchSuggestion.n}:${searchSuggestion.s.replace(Regex("\\s"), "_")}"
+                with(searchInputView.text!!) {
+                    delete(if (lastIndexOf(' ') == -1) 0 else lastIndexOf(' ') + 1, length)
+
+                    if (!this.contains(tag))
+                        append("$tag ")
                }
            }
            is Suggestion -> {
-                with(searchInputView.text) {
+                with(searchInputView.text!!) {
                    clear()
-                    append(searchSuggestion.str)
+                    append(searchSuggestion.body)
                }
            }
            is FavoriteHistorySwitch -> onFavoriteHistorySwitchClickListener?.invoke()
@@ -99,16 +102,16 @@ class FloatingSearchViewDayNight @JvmOverloads constructor(context: Context, att

    override fun onSearchAction(currentQuery: String?) {}

-    override fun onBindSuggestion(
+    fun onBindSuggestion(
        suggestionView: View?,
        leftIcon: ImageView?,
        textView: TextView?,
        item: SearchSuggestion?,
        itemPosition: Int
    ) {
-        when(item) {
+      when(item) {
            is TagSuggestion -> {
-                val tag = "${item.n}:${item.s.replace(Regex("\\s"), "_")}"
+                val tag = "${item.n}:${item.s}"

                leftIcon?.setImageDrawable(
                    ResourcesCompat.getDrawable(
@@ -159,9 +162,7 @@ class FloatingSearchViewDayNight @JvmOverloads constructor(context: Context, att
                    }
                }

-                if (item.t == -1) {
-                    textView?.text = item.s
-                } else {
+                if (item.t > 0) {
                    (suggestionView as? LinearLayout)?.let {
                        val count = it.findViewById<TextView>(R.id.count)
                        if (count == null)
@@ -196,7 +197,7 @@ class FloatingSearchViewDayNight @JvmOverloads constructor(context: Context, att
                    isClickable = true

                    setOnClickListener {
-                        onHistoryDeleteClickedListener?.invoke(item.str)
+                        onHistoryDeleteClickedListener?.invoke(item.body)
                    }
                }
            }
@@ -212,10 +213,4 @@ class FloatingSearchViewDayNight @JvmOverloads constructor(context: Context, att
            }
        }
    }
-
-    // hack to remove color attributes which should not be reused
-    override fun onSaveInstanceState(): Parcelable? {
-        super.onSaveInstanceState()
-        return null
-    }
-}
+}
--- a/app/src/main/java/xyz/quaver/pupil/ui/view/MainView.java
+++ b/app/src/main/java/xyz/quaver/pupil/ui/view/MainView.java
@@ -0,0 +1,462 @@
+/*
+ *     Pupil, Hitomi.la viewer for Android
+ *     Copyright (C) 2020  tom5079
+ *
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ *
+ *     This program is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package xyz.quaver.pupil.ui.view;
+
+import android.animation.ValueAnimator;
+import android.content.Context;
+import android.content.res.Configuration;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.Rect;
+import android.os.Vibrator;
+import android.util.AttributeSet;
+import android.util.DisplayMetrics;
+import android.view.Gravity;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.animation.DecelerateInterpolator;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatDelegate;
+import androidx.appcompat.content.res.AppCompatResources;
+import androidx.core.content.ContextCompat;
+import androidx.core.view.NestedScrollingChild;
+import androidx.core.view.NestedScrollingChildHelper;
+import androidx.core.view.NestedScrollingParent;
+import androidx.core.view.NestedScrollingParentHelper;
+import androidx.core.view.ViewCompat;
+import androidx.core.widget.TextViewCompat;
+
+import xyz.quaver.pupil.R;
+
+@SuppressWarnings("NullableProblems")
+public class MainView extends ViewGroup implements NestedScrollingChild, NestedScrollingParent {
+
+    private static final int PAGE_TURN_LAYOUT_SIZE = 48;
+    private static final int PAGE_TURN_ANIM_DURATION = 500;
+    private static final int PREV_OFFSET = 64;
+    private static final int RIPPLE_GIVE = 4;
+
+    private final float adjustedPageTurnLayoutSize;
+    private final float adjustedPrevOffset;
+    private final float adjustedRippleGive;
+    
+    final private NestedScrollingParentHelper mNestedScrollingParentHelper;
+    final private NestedScrollingChildHelper mNestedScrollingChildHelper;
+
+    final private Vibrator mVibrator;
+
+    private View mTarget;
+
+    private TextView mPrev;
+    private TextView mNext;
+
+    private final Paint mRipplePaint = new Paint();
+    private final Rect mRippleBound = new Rect();
+
+    private int mRippleSize = 0;
+    private final int mRippleTargetSize;
+    private final ValueAnimator mRippleAnimator = new ValueAnimator();
+
+    private int mCurrentOverScroll = 0;
+
+    private int mCurrentPage = 1;
+    private boolean mShowPrev;
+    private boolean mShowNext;
+
+    private OnPageTurnListener mOnPageTurnListener;
+
+    public MainView(@NonNull Context context) {
+        this(context, null);
+    }
+
+    public MainView(@NonNull Context context, AttributeSet attr) {
+        this(context, attr, 0);
+    }
+
+    public MainView(@NonNull Context context, AttributeSet attr, int defStyle) {
+        super(context, attr, defStyle);
+
+        setWillNotDraw(false);
+
+        DisplayMetrics metrics = getResources().getDisplayMetrics();
+
+        adjustedPageTurnLayoutSize = PAGE_TURN_LAYOUT_SIZE * metrics.density;
+        adjustedPrevOffset = PREV_OFFSET * metrics.density;
+        adjustedRippleGive = RIPPLE_GIVE * metrics.density;
+
+        mRippleTargetSize = metrics.widthPixels;
+
+        mNestedScrollingParentHelper = new NestedScrollingParentHelper(this);
+        mNestedScrollingChildHelper = new NestedScrollingChildHelper(this);
+
+        mVibrator = (Vibrator) getContext().getSystemService(Context.VIBRATOR_SERVICE);
+
+        mRippleAnimator.addUpdateListener(animation -> {
+            mRippleSize = (int) animation.getAnimatedValue();
+            invalidate();
+        });
+        mRippleAnimator.setDuration(PAGE_TURN_ANIM_DURATION);
+
+        initPageTurnView();
+    }
+
+    public void setCurrentPage(int currentPage, boolean showNext) {
+        mCurrentPage = currentPage;
+
+        mShowPrev = currentPage > 1;
+        mShowNext = showNext;
+
+        mPrev.setText(getContext().getString(R.string.main_move_to_page, mCurrentPage-1));
+        mNext.setText(getContext().getString(R.string.main_move_to_page, mCurrentPage+1));
+    }
+
+    public void setOnPageTurnListener(OnPageTurnListener listener) {
+        mOnPageTurnListener = listener;
+    }
+
+    private void initPageTurnView() {
+        TextView prev = new TextView(getContext());
+        TextView next = new TextView(getContext());
+
+        prev.setGravity(Gravity.CENTER_VERTICAL);
+        next.setGravity(Gravity.CENTER_VERTICAL);
+
+        prev.setCompoundDrawablesWithIntrinsicBounds(R.drawable.navigate_prev, 0, 0, 0);
+        next.setCompoundDrawablesWithIntrinsicBounds(0, 0, R.drawable.navigate_next, 0);
+
+        TextViewCompat.setCompoundDrawableTintList(prev, AppCompatResources.getColorStateList(getContext(), R.color.colorAccent));
+        TextViewCompat.setCompoundDrawableTintList(next, AppCompatResources.getColorStateList(getContext(), R.color.colorAccent));
+
+        prev.setVisibility(View.INVISIBLE);
+        next.setVisibility(View.INVISIBLE);
+
+        mPrev = prev;
+        mNext = next;
+
+        addView(mPrev);
+        addView(mNext);
+
+        setCurrentPage(1, false);
+    }
+
+    private void ensureTarget() {
+        if (mTarget == null) {
+            for (int i = 0; i < getChildCount(); i++) {
+                View child = getChildAt(i);
+
+                if (!child.equals(mNext) && !child.equals(mPrev)) {
+                    mTarget = child;
+                    break;
+                }
+            }
+        }
+    }
+
+    @Override
+    protected void onLayout(boolean changed, int l, int t, int r, int b) {
+        final int width = getMeasuredWidth();
+        final int height = getMeasuredHeight();
+
+        if (getChildCount() == 0)
+            return;
+        if (mTarget == null)
+            ensureTarget();
+        if (mTarget == null)
+            return;
+
+        mTarget.layout(
+            getPaddingLeft(),
+            getPaddingTop(),
+            width - getPaddingRight(),
+            height - getPaddingBottom()
+        );
+
+        final int prevWidth = mPrev.getMeasuredWidth();
+        mPrev.layout(
+            width / 2 - prevWidth / 2,
+            getPaddingTop() + (int) adjustedPrevOffset,
+            width / 2 + prevWidth / 2,
+            getPaddingTop() + (int) adjustedPrevOffset + mPrev.getMeasuredHeight()
+        );
+
+        final int nextWidth = mNext.getMeasuredWidth();
+        mNext.layout(
+            width / 2 - nextWidth / 2,
+            height - getPaddingBottom() - mNext.getMeasuredHeight(),
+            width / 2 + nextWidth / 2,
+            height - getPaddingBottom()
+        );
+    }
+
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+        if (mTarget == null)
+            ensureTarget();
+        if (mTarget == null)
+            return;
+
+        mTarget.measure(
+            MeasureSpec.makeMeasureSpec(getMeasuredWidth() - getPaddingLeft() - getPaddingRight(), MeasureSpec.EXACTLY),
+            MeasureSpec.makeMeasureSpec(getMeasuredHeight() - getPaddingTop() - getPaddingBottom(), MeasureSpec.EXACTLY)
+        );
+
+        mPrev.measure(
+            MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST),
+            MeasureSpec.makeMeasureSpec((int) adjustedPageTurnLayoutSize, MeasureSpec.EXACTLY)
+        );
+
+        mNext.measure(
+            MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST),
+            MeasureSpec.makeMeasureSpec((int) adjustedPageTurnLayoutSize, MeasureSpec.EXACTLY)
+        );
+    }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        super.onDraw(canvas);
+
+        if (mCurrentOverScroll == 0)
+            return;
+
+        if (mCurrentOverScroll > 0) {
+            mRippleBound.set(
+                getPaddingLeft(),
+                (int) (getPaddingTop() - adjustedRippleGive),
+                getMeasuredWidth() - getPaddingRight(),
+                (int) (getPaddingTop() + adjustedPrevOffset + mPrev.getMeasuredHeight() + adjustedRippleGive)
+            );
+        }
+
+        if (mCurrentOverScroll < 0) {
+            final int height = getMeasuredHeight();
+            mRippleBound.set(
+                getPaddingLeft(),
+                (int) (height - getPaddingBottom() - mNext.getMeasuredHeight() - adjustedRippleGive),
+                getMeasuredWidth() - getPaddingRight(),
+                height - getPaddingBottom()
+            );
+        }
+
+        mRipplePaint.reset();
+        mRipplePaint.setStyle(Paint.Style.FILL);
+
+        int currentNightMode = getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
+
+        switch (currentNightMode) {
+            case Configuration.UI_MODE_NIGHT_YES:
+                mRipplePaint.setColor(ContextCompat.getColor(getContext(), R.color.material_light_blue_700));
+                break;
+            case Configuration.UI_MODE_NIGHT_NO:
+                mRipplePaint.setColor(ContextCompat.getColor(getContext(), R.color.material_light_blue_300));
+                break;
+        }
+
+        canvas.drawCircle(
+            (mRippleBound.left + mRippleBound.right) / 2F,
+            mCurrentOverScroll > 0 ? mRippleBound.bottom : mRippleBound.top,
+            mRippleSize,
+            mRipplePaint
+        );
+    }
+
+    private void onOverscroll(int overscroll) {
+        if (mTarget == null)
+            ensureTarget();
+        if (mTarget == null)
+            return;
+
+        mCurrentOverScroll = overscroll;
+
+        if (overscroll > 0) {
+            mPrev.setVisibility(View.VISIBLE);
+            mNext.setVisibility(View.INVISIBLE);
+        } else if (overscroll < 0) {
+            mPrev.setVisibility(View.INVISIBLE);
+            mNext.setVisibility(View.VISIBLE);
+        } else {
+            mPrev.setVisibility(View.INVISIBLE);
+            mNext.setVisibility(View.INVISIBLE);
+        }
+
+        if (Math.abs(overscroll) >= adjustedPageTurnLayoutSize) {
+            if (!mRippleAnimator.isStarted() && mRippleSize != mRippleTargetSize) {
+                mVibrator.vibrate(10);
+
+                mRippleAnimator.setIntValues(mRippleSize, mRippleTargetSize);
+                mRippleAnimator.start();
+            }
+        } else {
+            if (!mRippleAnimator.isStarted() && mRippleSize != 0) {
+                mRippleAnimator.setIntValues(mRippleSize, 0);
+                mRippleAnimator.start();
+            }
+        }
+
+        float clippedOverScrollTop = (overscroll > 0 ? 1 : -1) * Math.min(Math.abs(overscroll), adjustedPageTurnLayoutSize);
+        mTarget.setTranslationY(clippedOverScrollTop);
+    }
+
+    private void onOverscrollEnd(int overscroll) {
+        if (mTarget == null)
+            ensureTarget();
+        if (mTarget == null)
+            return;
+
+        mRippleAnimator.cancel();
+        mRippleAnimator.setIntValues(mRippleSize, 0);
+        mRippleAnimator.start();
+
+        mPrev.setVisibility(View.INVISIBLE);
+        mNext.setVisibility(View.INVISIBLE);
+
+        ViewCompat.animate(mTarget)
+            .setDuration(PAGE_TURN_ANIM_DURATION)
+            .setInterpolator(new DecelerateInterpolator())
+            .translationY(0);
+
+        if (Math.abs(overscroll) > adjustedPageTurnLayoutSize && mOnPageTurnListener != null) {
+            if (overscroll > 0)
+                mOnPageTurnListener.onPrev(mCurrentPage-1);
+            if (overscroll < 0)
+                mOnPageTurnListener.onNext(mCurrentPage+1);
+        }
+    }
+
+    // NestedScrollingParent
+
+    private int mTotalUnconsumed = 0;
+
+    @Override
+    public boolean onStartNestedScroll(View child, View target, int nestedScrollAxes) {
+        return isEnabled() && (nestedScrollAxes & ViewCompat.SCROLL_AXIS_VERTICAL) != 0;
+    }
+
+    @Override
+    public void onNestedScrollAccepted(View child, View target, int axes) {
+        mNestedScrollingParentHelper.onNestedScrollAccepted(child, target, axes);
+        startNestedScroll(axes & ViewCompat.SCROLL_AXIS_VERTICAL);
+
+        mTotalUnconsumed = 0;
+    }
+
+    @Override
+    public void onNestedPreScroll(View target, int dx, int dy, int[] consumed) {
+        if (mTotalUnconsumed != 0 && dy > 0 == mTotalUnconsumed > 0) {
+            if (Math.abs(dy) > Math.abs(mTotalUnconsumed)) {
+                consumed[1] = dy - mTotalUnconsumed;
+                mTotalUnconsumed = 0;
+            } else {
+                mTotalUnconsumed -= dy;
+                consumed[1] = dy;
+            }
+
+            onOverscroll(mTotalUnconsumed);
+        }
+
+        final int[] parentConsumed = new int[2];
+        if (dispatchNestedPreScroll(dx - consumed[0], dy - consumed[1], parentConsumed, null)) {
+            consumed[0] += parentConsumed[0];
+            consumed[1] += parentConsumed[1];
+        }
+    }
+
+    @Override
+    public void onNestedScroll(View target, int dxConsumed, int dyConsumed, int dxUnconsumed, int dyUnconsumed) {
+        final int[] mParentOffsetInWindow = new int[2];
+        dispatchNestedScroll(dxConsumed, dyConsumed, dxUnconsumed, dyUnconsumed, mParentOffsetInWindow);
+
+        final int dy = dyUnconsumed + mParentOffsetInWindow[1];
+
+        if (mTotalUnconsumed == 0 && ((dy < 0 && !mShowPrev) || (dy > 0 && !mShowNext)))
+            return;
+
+        if (dy != 0) {
+            mTotalUnconsumed -= dy;
+            onOverscroll(mTotalUnconsumed);
+        }
+    }
+
+    @Override
+    public void onStopNestedScroll(View child) {
+        mNestedScrollingParentHelper.onStopNestedScroll(child);
+
+        if (Math.abs(mTotalUnconsumed) > 0) {
+            onOverscrollEnd(mTotalUnconsumed);
+            mTotalUnconsumed = 0;
+        }
+
+        stopNestedScroll();
+    }
+
+    // NestedScrollingChild
+
+    @Override
+    public void setNestedScrollingEnabled(boolean enabled) {
+        mNestedScrollingChildHelper.setNestedScrollingEnabled(enabled);
+    }
+
+    @Override
+    public boolean isNestedScrollingEnabled() {
+        return mNestedScrollingChildHelper.isNestedScrollingEnabled();
+    }
+
+    @Override
+    public boolean startNestedScroll(int axes) {
+        return mNestedScrollingChildHelper.startNestedScroll(axes);
+    }
+
+    @Override
+    public void stopNestedScroll() {
+        mNestedScrollingChildHelper.stopNestedScroll();
+    }
+
+    @Override
+    public boolean hasNestedScrollingParent() {
+        return mNestedScrollingChildHelper.hasNestedScrollingParent();
+    }
+
+    @Override
+    public boolean dispatchNestedScroll(int dxConsumed, int dyConsumed, int dxUnconsumed, int dyUnconsumed, @Nullable int[] offsetInWindow) {
+        return mNestedScrollingChildHelper.dispatchNestedScroll(dxConsumed, dyConsumed, dxUnconsumed, dyUnconsumed, offsetInWindow);
+    }
+
+    @Override
+    public boolean dispatchNestedPreScroll(int dx, int dy, @Nullable int[] consumed, @Nullable int[] offsetInWindow) {
+        return mNestedScrollingChildHelper.dispatchNestedPreScroll(dx, dy, consumed, offsetInWindow);
+    }
+
+    @Override
+    public boolean dispatchNestedFling(float velocityX, float velocityY, boolean consumed) {
+        return mNestedScrollingChildHelper.dispatchNestedFling(velocityX, velocityY, consumed);
+    }
+
+    @Override
+    public boolean dispatchNestedPreFling(float velocityX, float velocityY) {
+        return mNestedScrollingChildHelper.dispatchNestedPreFling(velocityX, velocityY);
+    }
+
+    public interface OnPageTurnListener {
+        void onPrev(int page);
+        void onNext(int page);
+    }
+}
--- a/app/src/main/java/xyz/quaver/pupil/ui/view/ProgressCard.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/view/ProgressCard.kt
@@ -0,0 +1,72 @@
+package xyz.quaver.pupil.ui.view
+
+import android.content.Context
+import android.util.AttributeSet
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.cardview.widget.CardView
+import androidx.core.content.ContextCompat
+import androidx.core.graphics.drawable.DrawableCompat
+import xyz.quaver.pupil.R
+import xyz.quaver.pupil.databinding.ProgressCardViewBinding
+
+class ProgressCard @JvmOverloads constructor(context: Context, attr: AttributeSet? = null, defStyle: Int = R.attr.cardViewStyle) : CardView(context, attr, defStyle) {
+
+    enum class Type {
+        LOADING,
+        CACHE,
+        DOWNLOAD
+    }
+
+    var type: Type = Type.LOADING
+        set(value) {
+            field = value
+
+            when (field) {
+                Type.LOADING -> R.color.colorAccent
+                Type.CACHE -> R.color.material_blue_700
+                Type.DOWNLOAD -> R.color.material_green_a700
+            }.let {
+                val color = ContextCompat.getColor(context, it)
+                DrawableCompat.setTint(binding.progressbar.progressDrawable, color)
+            }
+        }
+
+    var progress: Int
+        get() = binding.progressbar.progress
+        set(value) {
+            binding.progressbar.progress = value
+        }
+    var max: Int
+        get() = binding.progressbar.max
+        set(value) {
+            binding.progressbar.max = value
+
+            binding.progressbar.visibility =
+                if (value == 0)
+                    GONE
+                else
+                    VISIBLE
+        }
+
+    val binding = ProgressCardViewBinding.inflate(LayoutInflater.from(context), this)
+
+    init {
+        binding.content.setOnClickListener {
+            performClick()
+        }
+
+        binding.content.setOnLongClickListener {
+            performLongClick()
+        }
+    }
+
+    override fun addView(child: View?, index: Int, params: ViewGroup.LayoutParams?) {
+        if (childCount == 0)
+            super.addView(child, index, params)
+        else
+            binding.content.addView(child, index, params)
+    }
+
+}
--- a/app/src/main/java/xyz/quaver/pupil/ui/view/TagChip.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/view/TagChip.kt
@@ -23,17 +23,19 @@ import android.content.Context
 import androidx.core.content.ContextCompat
 import com.google.android.material.chip.Chip
 import xyz.quaver.pupil.R
+import xyz.quaver.pupil.favoriteTags
 import xyz.quaver.pupil.types.Tag
+import xyz.quaver.pupil.util.translations
 import xyz.quaver.pupil.util.wordCapitalize

@SuppressLint("ViewConstructor")
-class TagChip(context: Context, tag: Tag) : Chip(context) {
+class TagChip(context: Context, _tag: Tag) : Chip(context) {

    val tag: Tag =
-        tag.let {
+        _tag.let {
            when {
                it.area != null -> it
-                else -> Tag("tag", tag.tag)
+                else -> Tag("tag", _tag.tag)
            }
        }

@@ -44,23 +46,52 @@ class TagChip(context: Context, tag: Tag) : Chip(context) {
    }.toMap()

    init {
-        chipIcon = when(tag.area) {
+        when(tag.area) {
            "male" -> {
                setChipBackgroundColorResource(R.color.material_blue_700)
                setTextColor(ContextCompat.getColor(context, android.R.color.white))
-                ContextCompat.getDrawable(context, R.drawable.gender_male_white)
+                setCloseIconTintResource(android.R.color.white)
+                chipIcon = ContextCompat.getDrawable(context, R.drawable.gender_male_white)
            }
            "female" -> {
                setChipBackgroundColorResource(R.color.material_pink_600)
                setTextColor(ContextCompat.getColor(context, android.R.color.white))
-                ContextCompat.getDrawable(context, R.drawable.gender_female_white)
+                setCloseIconTintResource(android.R.color.white)
+                chipIcon = ContextCompat.getDrawable(context, R.drawable.gender_female_white)
+            }
+        }
+
+        if (favoriteTags.contains(tag))
+            setChipBackgroundColorResource(R.color.material_orange_500)
+
+        isCloseIconVisible = true
+        closeIcon = ContextCompat.getDrawable(context,
+            if (favoriteTags.contains(tag))
+                R.drawable.ic_star_filled
+            else
+                R.drawable.ic_star_empty
+        )
+
+        setOnCloseIconClickListener {
+            if (favoriteTags.contains(tag)) {
+                favoriteTags.remove(tag)
+                closeIcon = ContextCompat.getDrawable(context, R.drawable.ic_star_empty)
+
+                when(tag.area) {
+                    "male" -> setChipBackgroundColorResource(R.color.material_blue_700)
+                    "female" -> setChipBackgroundColorResource(R.color.material_pink_600)
+                    else -> chipBackgroundColor = null
+                }
+            } else {
+                favoriteTags.add(tag)
+                closeIcon = ContextCompat.getDrawable(context, R.drawable.ic_star_filled)
+                setChipBackgroundColorResource(R.color.material_orange_500)
            }
-            else -> null
        }

        text = when (tag.area) {
            "language" -> languages[tag.tag]
-            else -> tag.tag.wordCapitalize()
+            else -> (translations[tag.tag] ?: tag.tag).wordCapitalize()
        }

        setEnsureMinTouchTargetSize(false)
--- a/app/src/main/java/xyz/quaver/pupil/ui/view/TagChipGroup.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/view/TagChipGroup.kt
@@ -0,0 +1,100 @@
+/*
+ *     Pupil, Hitomi.la viewer for Android
+ *     Copyright (C) 2020  tom5079
+ *
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ *
+ *     This program is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package xyz.quaver.pupil.ui.view
+
+import android.content.Context
+import android.content.res.TypedArray
+import android.util.AttributeSet
+import android.util.Log
+import com.google.android.material.chip.Chip
+import com.google.android.material.chip.ChipGroup
+import kotlinx.coroutines.*
+import xyz.quaver.pupil.R
+import xyz.quaver.pupil.types.Tag
+import xyz.quaver.pupil.types.Tags
+
+class TagChipGroup @JvmOverloads constructor(context: Context, attr: AttributeSet? = null, attrStyle: Int = R.attr.chipGroupStyle, val tags: Tags = Tags()) : ChipGroup(context, attr, attrStyle), MutableSet<Tag> by tags {
+
+    object Defaults {
+        const val maxChipSize = 10
+    }
+
+    var maxChipSize: Int = Defaults.maxChipSize
+        set(value) {
+            field = value
+
+            refresh()
+        }
+
+    private val moreView = Chip(context).apply {
+        text = "…"
+
+        setEnsureMinTouchTargetSize(false)
+
+        setOnClickListener {
+            removeView(this)
+
+            for (i in maxChipSize until tags.size) {
+                val tag = tags.elementAt(i)
+
+                addView(TagChip(context, tag).apply {
+                    setOnClickListener {
+                        onClickListener?.invoke(tag)
+                    }
+                })
+            }
+        }
+    }
+
+    var onClickListener: ((Tag) -> Unit)? = null
+
+    private fun applyAttributes(attr: TypedArray) {
+        maxChipSize = attr.getInt(R.styleable.TagChipGroup_maxTag, Defaults.maxChipSize)
+    }
+
+    private var refreshJob: Job? = null
+    fun refresh() {
+        refreshJob?.cancel()
+        this.removeAllViews()
+
+        refreshJob = CoroutineScope(Dispatchers.Main).launch {
+            tags.take(maxChipSize).map {
+                CoroutineScope(Dispatchers.Default).async {
+                    TagChip(context, it).apply {
+                        setOnClickListener {
+                            onClickListener?.invoke(this.tag)
+                        }
+                    }
+                }
+            }.forEach {
+                addView(it.await())
+            }
+
+            if (maxChipSize > 0 && tags.size > maxChipSize)
+                addView(moreView)
+        }
+    }
+
+    init {
+        applyAttributes(context.obtainStyledAttributes(attr, R.styleable.TagChipGroup))
+
+        refresh()
+    }
+
+}
--- a/app/src/main/java/xyz/quaver/pupil/util/SavedSet.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/SavedSet.kt
@@ -18,9 +18,12 @@

 package xyz.quaver.pupil.util

-import kotlinx.serialization.*
+import com.google.firebase.crashlytics.FirebaseCrashlytics
+import kotlinx.serialization.ExperimentalSerializationApi
+import kotlinx.serialization.KSerializer
 import kotlinx.serialization.builtins.ListSerializer
 import kotlinx.serialization.json.Json
+import kotlinx.serialization.serializer
 import java.io.File

 class SavedSet <T: Any> (private val file: File, private val any: T, private val set: MutableSet<T> = mutableSetOf()) : MutableSet<T> by set {
@@ -38,48 +41,50 @@ class SavedSet <T: Any> (private val file: File, private val any: T, private val
        load()
    }

+    @Synchronized
    fun load() {
-        synchronized(this) {
-            set.clear()
-            kotlin.runCatching {
-                Json.decodeFromString(serializer, file.readText())
-            }.onSuccess {
-                set.addAll(it)
-            }
+        set.clear()
+        kotlin.runCatching {
+            Json.decodeFromString(serializer, file.readText())
+        }.onSuccess {
+            set.addAll(it)
+        }.onFailure {
+            FirebaseCrashlytics.getInstance().recordException(it)
        }
    }

+    @Synchronized
    @OptIn(ExperimentalSerializationApi::class)
    fun save() {
-        synchronized(this) {
-            file.writeText(Json.encodeToString(serializer, set.toList()))
-        }
+        file.writeText(Json.encodeToString(serializer, set.toList()))
    }

+    @Synchronized
    override fun add(element: T): Boolean {
-        load()
+        set.remove(element)

        return set.add(element).also {
            save()
        }
    }

+    @Synchronized
    override fun addAll(elements: Collection<T>): Boolean {
-        load()
+        set.removeAll(elements)

        return set.addAll(elements).also {
            save()
        }
    }

+    @Synchronized
    override fun remove(element: T): Boolean {
-        load()
-
        return set.remove(element).also {
            save()
        }
    }

+    @Synchronized
    override fun clear() {
        set.clear()
        save()
--- a/app/src/main/java/xyz/quaver/pupil/util/SetLineOverlap.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/SetLineOverlap.kt
@@ -1,37 +0,0 @@
-package xyz.quaver.pupil.util
-
-import android.graphics.Paint
-import android.text.style.LineHeightSpan
-
-class SetLineOverlap(private val overlap: Boolean) : LineHeightSpan {
-    companion object {
-        private var originalBottom = 15
-        private var originalDescent = 13
-        private var overlapSaved = false
-    }
-
-    override fun chooseHeight(
-        text: CharSequence?,
-        start: Int,
-        end: Int,
-        spanstartv: Int,
-        lineHeight: Int,
-        fm: Paint.FontMetricsInt?
-    ) {
-        fm ?: return
-
-        if (overlap) {
-            if (overlapSaved) {
-                originalBottom = fm.bottom
-                originalDescent = fm.descent
-                overlapSaved = true
-            }
-            fm.bottom += fm.top
-            fm.descent += fm.top
-        } else {
-            fm.bottom = originalBottom
-            fm.descent = originalDescent
-            overlapSaved = false
-        }
-    }
-}
--- a/app/src/main/java/xyz/quaver/pupil/util/camera.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/camera.kt
@@ -0,0 +1,119 @@
+/*
+ *     Pupil, Hitomi.la viewer for Android
+ *     Copyright (C) 2020  tom5079
+ *
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ *
+ *     This program is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+@file:Suppress("DEPRECATION", "Recycle")
+
+package xyz.quaver.pupil.util
+
+import android.content.Context
+import android.content.pm.PackageManager
+import android.graphics.ImageFormat
+import android.graphics.SurfaceTexture
+import android.hardware.Camera
+import android.view.Surface
+import android.view.WindowManager
+import com.google.android.gms.tasks.Task
+import com.google.mlkit.vision.common.InputImage
+import com.google.mlkit.vision.face.Face
+import com.google.mlkit.vision.face.FaceDetection
+import com.google.mlkit.vision.face.FaceDetectorOptions
+
+/** Check if this device has a camera */
+private fun Context.checkCameraHardware() =
+    this.packageManager.hasSystemFeature(PackageManager.FEATURE_CAMERA)
+
+private fun openFrontCamera() : Pair<Camera?, Int> {
+    var camera: Camera? = null
+    var cameraID: Int = -1
+
+    val cameraInfo = Camera.CameraInfo()
+
+    for (i in 0 until Camera.getNumberOfCameras()) {
+        Camera.getCameraInfo(i, cameraInfo)
+        if (cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT)
+            runCatching { Camera.open(i) }.getOrNull()?.let { camera = it; cameraID = i }
+
+        if (camera != null) break
+    }
+
+    return Pair(camera, cameraID)
+}
+
+val orientations = mapOf(
+    Surface.ROTATION_0 to 0,
+    Surface.ROTATION_90 to 90,
+    Surface.ROTATION_180 to 180,
+    Surface.ROTATION_270 to 270,
+)
+
+private fun getRotation(context: Context, cameraID: Int): Int {
+    val cameraRotation = Camera.CameraInfo().also { Camera.getCameraInfo(cameraID, it) }.orientation
+    val rotation = orientations[(context.getSystemService(Context.WINDOW_SERVICE) as WindowManager).defaultDisplay.rotation] ?: error("")
+
+    return (cameraRotation + rotation) % 360
+}
+
+var camera: Camera? = null
+var surfaceTexture: SurfaceTexture? = null
+private val detector = FaceDetection.getClient(
+    FaceDetectorOptions.Builder()
+        .setClassificationMode(FaceDetectorOptions.CLASSIFICATION_MODE_ALL)
+        .build()
+)
+private var process: Task<List<Face>>? = null
+
+fun startCamera(context: Context, callback: (List<Face>) -> Unit) {
+    if (camera != null) closeCamera()
+
+    val cameraID = openFrontCamera().let { (cam, cameraID) ->
+        cam ?: return
+        camera = cam
+        cameraID
+    }
+
+    with (camera!!) {
+        parameters = parameters.apply {
+            setPreviewSize(640, 480)
+            previewFormat = ImageFormat.NV21
+        }
+
+        setPreviewTexture(surfaceTexture ?: SurfaceTexture(0).also {
+            surfaceTexture = it
+        })
+        startPreview()
+        setPreviewCallback { bytes, _ ->
+            if (process?.isComplete == false)
+                return@setPreviewCallback
+
+            val rotation = getRotation(context, cameraID)
+
+            val image = InputImage.fromByteArray(bytes, 640, 480, rotation, InputImage.IMAGE_FORMAT_NV21)
+            process = detector.process(image)
+                .addOnSuccessListener(callback)
+        }
+    }
+}
+
+fun closeCamera() {
+    camera?.setPreviewCallback(null)
+    camera?.stopPreview()
+    surfaceTexture?.release()
+    surfaceTexture = null
+    camera?.release()
+    camera = null
+}
--- a/app/src/main/java/xyz/quaver/pupil/util/download/Cache.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/download/Cache.kt
@@ -1,297 +0,0 @@
-/*
- *     Pupil, Hitomi.la viewer for Android
- *     Copyright (C) 2020  tom5079
- *
- *     This program is free software: you can redistribute it and/or modify
- *     it under the terms of the GNU General Public License as published by
- *     the Free Software Foundation, either version 3 of the License, or
- *     (at your option) any later version.
- *
- *     This program is distributed in the hope that it will be useful,
- *     but WITHOUT ANY WARRANTY; without even the implied warranty of
- *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *     GNU General Public License for more details.
- *
- *     You should have received a copy of the GNU General Public License
- *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package xyz.quaver.pupil.util.download
-
-import android.content.Context
-import android.content.ContextWrapper
-import android.util.Base64
-import android.util.SparseArray
-import androidx.preference.PreferenceManager
-import com.google.firebase.crashlytics.FirebaseCrashlytics
-import kotlinx.coroutines.*
-import kotlinx.serialization.decodeFromString
-import kotlinx.serialization.encodeToString
-import kotlinx.serialization.json.Json
-import xyz.quaver.Code
-import xyz.quaver.hitomi.GalleryBlock
-import xyz.quaver.hitomi.Reader
-import xyz.quaver.pupil.util.getCachedGallery
-import xyz.quaver.pupil.util.getDownloadDirectory
-import xyz.quaver.pupil.util.isParentOf
-import xyz.quaver.readBytes
-import java.io.BufferedInputStream
-import java.io.File
-import java.io.FileOutputStream
-import java.io.InputStream
-import java.net.URL
-
-@Suppress("DEPRECATION")
-@Deprecated("Use downloader.Cache instead")
-class Cache(context: Context) : ContextWrapper(context) {
-
-    companion object {
-        private val moving = mutableListOf<Int>()
-        private val readers = SparseArray<Reader?>()
-    }
-
-    private val preference = PreferenceManager.getDefaultSharedPreferences(this)
-
-    // Search in this order
-    // Download -> Cache
-    fun getCachedGallery(galleryID: Int) = getCachedGallery(this, galleryID).also {
-        if (!it.exists())
-            it.mkdirs()
-    }
-
-    fun getCachedMetadata(galleryID: Int) : Metadata? {
-        val file = File(getCachedGallery(galleryID), ".metadata")
-
-        if (!file.exists())
-            return null
-
-        return try {
-            Json.decodeFromString(file.readText())
-        } catch (e: Exception) {
-            //File corrupted
-            file.delete()
-            null
-        }
-    }
-
-    fun setCachedMetadata(galleryID: Int, metadata: Metadata) {
-        if (preference.getBoolean("cache_disable", false))
-            return
-
-        val file = File(getCachedGallery(galleryID), ".metadata").also {
-            if (!it.exists())
-                it.createNewFile()
-        }
-
-        file.writeText(Json.encodeToString(metadata))
-    }
-
-    suspend fun getThumbnail(galleryID: Int): String? {
-        val metadata = Cache(this).getCachedMetadata(galleryID)
-
-        @Suppress("BlockingMethodInNonBlockingContext")
-        val thumbnail = if (metadata?.thumbnail == null)
-            withContext(Dispatchers.IO) {
-                val thumbnail = getGalleryBlock(galleryID)?.thumbnails?.firstOrNull() ?: return@withContext null
-                try {
-                    val data = URL(thumbnail).readBytes().apply {
-                        if (isEmpty()) return@withContext null
-                    }
-                    Base64.encodeToString(data, Base64.DEFAULT)
-                } catch (e: Exception) {
-                    null
-                }
-            }
-        else
-            metadata.thumbnail
-
-        setCachedMetadata(
-            galleryID,
-            Metadata(Cache(this).getCachedMetadata(galleryID), thumbnail = thumbnail)
-        )
-
-        return thumbnail
-    }
-
-    suspend fun getGalleryBlock(galleryID: Int): GalleryBlock? {
-        val metadata = Cache(this).getCachedMetadata(galleryID)
-
-        val sources = listOf(
-            { xyz.quaver.hitomi.getGalleryBlock(galleryID) },
-            { xyz.quaver.hiyobi.getGalleryBlock(galleryID) }
-        )
-
-        val galleryBlock = if (metadata?.galleryBlock == null) {
-            withContext(Dispatchers.IO) {
-                var galleryBlock: GalleryBlock? = null
-
-                for (source in sources) {
-                    galleryBlock = try {
-                        source.invoke()
-                    } catch (e: Exception) {
-                        null
-                    }
-
-                    if (galleryBlock != null)
-                        break
-                }
-
-                galleryBlock
-            } ?: return null
-        }
-        else
-            metadata.galleryBlock
-
-        setCachedMetadata(
-            galleryID,
-            Metadata(Cache(this).getCachedMetadata(galleryID), galleryBlock = galleryBlock)
-        )
-
-        return galleryBlock
-    }
-
-    fun getReaderOrNull(galleryID: Int): Reader? {
-        return readers[galleryID] ?: getCachedMetadata(galleryID)?.reader
-    }
-
-    suspend fun getReader(galleryID: Int): Reader? {
-        val metadata = getCachedMetadata(galleryID)
-        val mirrors = preference.getString("mirrors", null)?.split('>') ?: listOf()
-
-        val sources = mapOf(
-            Code.HITOMI to { xyz.quaver.hitomi.getReader(galleryID) },
-            Code.HIYOBI to { xyz.quaver.hiyobi.getReader(galleryID) }
-        ).let {
-            if (mirrors.isNotEmpty())
-                it.toSortedMap{ o1, o2 ->
-                    mirrors.indexOf(o1.name) - mirrors.indexOf(o2.name)
-                }
-            else
-                it
-        }
-
-        val reader =
-            if (readers[galleryID] != null)
-                return readers[galleryID]
-            else if (metadata?.reader == null) {
-                var retval: Reader? = null
-
-                for (source in sources) {
-                    retval = try {
-                        withContext(Dispatchers.IO) {
-                            withTimeoutOrNull(1000) {
-                                source.value.invoke()
-                            }
-                        }
-                    } catch (e: Exception) {
-                        FirebaseCrashlytics.getInstance().recordException(e)
-                        null
-                    }
-
-                    if (retval != null)
-                        break
-                }
-
-                retval
-            } else
-                metadata.reader
-
-        readers.put(galleryID, reader)
-
-        setCachedMetadata(
-            galleryID,
-            Metadata(Cache(this).getCachedMetadata(galleryID), readers = reader)
-        )
-
-        return reader
-    }
-
-    val imageNameRegex = Regex("""^\d+\..+$""")
-    fun getImages(galleryID: Int): List<File?>? {
-        val gallery = getCachedGallery(galleryID)
-
-        return gallery.list { _, name ->
-            imageNameRegex.matches(name)
-        }?.map {
-            File(gallery, it)
-        }
-    }
-
-    val imageExtensions = listOf(
-        "png",
-        "jpg",
-        "webp",
-        "gif"
-    )
-    fun getImage(galleryID: Int, index: Int): File? {
-        val gallery = getCachedGallery(galleryID)
-
-        for (ext in imageExtensions) {
-            File(gallery, "%05d.$ext".format(index)).let {
-                if (it.exists())
-                    return it
-            }
-        }
-
-        return null
-    }
-
-
-    fun putImage(galleryID: Int, index: Int, ext: String, data: InputStream) {
-        if (preference.getBoolean("cache_disable", false))
-            return
-
-        val cache = File(getCachedGallery(galleryID), "%05d.$ext".format(index)).also {
-            if (!it.exists())
-                it.createNewFile()
-        }
-
-        try {
-            BufferedInputStream(data).use { inputStream ->
-                FileOutputStream(cache).use { outputStream ->
-                    inputStream.copyTo(outputStream)
-                }
-            }
-        } catch (e: Exception) {
-            cache.delete()
-        }
-    }
-
-    fun moveToDownload(galleryID: Int) {
-        if (preference.getBoolean("cache_disable", false))
-            return
-
-        if (moving.contains(galleryID))
-            return
-
-        CoroutineScope(Dispatchers.IO).launch {
-            val cache = getCachedGallery(galleryID).also {
-                if (!it.exists())
-                    return@launch
-            }
-            val download = File(getDownloadDirectory(this@Cache), galleryID.toString())
-
-            if (download.isParentOf(cache))
-                return@launch
-
-            FirebaseCrashlytics.getInstance().log("MOVING ${cache.canonicalPath} --> ${download.canonicalPath}")
-
-            cache.copyRecursively(download, true) { file, err ->
-                FirebaseCrashlytics.getInstance().log("MOVING ERROR ${file.canonicalPath} ${err.message}")
-                OnErrorAction.SKIP
-            }
-            FirebaseCrashlytics.getInstance().log("MOVED ${cache.canonicalPath}")
-
-            FirebaseCrashlytics.getInstance().log("DELETING ${cache.canonicalPath}")
-            cache.deleteRecursively()
-            FirebaseCrashlytics.getInstance().log("DELETED ${cache.canonicalPath}")
-        }
-    }
-
-    fun isDownloading(galleryID: Int) = getCachedMetadata(galleryID)?.isDownloading == true
-
-    fun setDownloading(galleryID: Int, isDownloading: Boolean) {
-        setCachedMetadata(galleryID, Metadata(getCachedMetadata(galleryID), isDownloading = isDownloading))
-    }
-
-}
--- a/app/src/main/java/xyz/quaver/pupil/util/download/DownloadWorker.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/download/DownloadWorker.kt
@@ -1,389 +0,0 @@
-/*
- *     Pupil, Hitomi.la viewer for Android
- *     Copyright (C) 2020  tom5079
- *
- *     This program is free software: you can redistribute it and/or modify
- *     it under the terms of the GNU General Public License as published by
- *     the Free Software Foundation, either version 3 of the License, or
- *     (at your option) any later version.
- *
- *     This program is distributed in the hope that it will be useful,
- *     but WITHOUT ANY WARRANTY; without even the implied warranty of
- *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *     GNU General Public License for more details.
- *
- *     You should have received a copy of the GNU General Public License
- *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package xyz.quaver.pupil.util.download
-
-import android.app.PendingIntent
-import android.content.Context
-import android.content.ContextWrapper
-import android.content.Intent
-import android.content.SharedPreferences
-import android.util.Log
-import android.util.SparseArray
-import androidx.core.app.NotificationCompat
-import androidx.core.app.NotificationManagerCompat
-import androidx.core.app.TaskStackBuilder
-import androidx.preference.PreferenceManager
-import com.google.firebase.crashlytics.FirebaseCrashlytics
-import kotlinx.coroutines.*
-import okhttp3.*
-import okio.*
-import xyz.quaver.Code
-import xyz.quaver.hitomi.Reader
-import xyz.quaver.hitomi.getReferer
-import xyz.quaver.hitomi.imageUrlFromImage
-import xyz.quaver.hiyobi.createImgList
-import xyz.quaver.pupil.R
-import xyz.quaver.pupil.client
-import xyz.quaver.pupil.interceptors
-import xyz.quaver.pupil.ui.ReaderActivity
-import java.io.File
-import java.io.IOException
-import java.util.concurrent.LinkedBlockingQueue
-
-@Suppress("DEPRECATION")
-@Deprecated("Use DownloadService instead")
-@OptIn(ExperimentalCoroutinesApi::class)
-class DownloadWorker private constructor(context: Context) : ContextWrapper(context) {
-
-    private val preferences : SharedPreferences = PreferenceManager.getDefaultSharedPreferences(this)
-
-    //region ProgressListener
-    @Suppress("UNCHECKED_CAST")
-    private val progressListener = object: ProgressListener {
-        override fun update(tag: Any?, bytesRead: Long, contentLength: Long, done: Boolean) {
-            val (galleryID, index) = (tag as? Pair<Int, Int>) ?: return
-
-            if (!done && progress[galleryID]?.get(index)?.isFinite() == true)
-                progress[galleryID]?.set(index, bytesRead * 100F / contentLength)
-        }
-    }
-
-    interface ProgressListener {
-        fun update(tag: Any?, bytesRead : Long, contentLength: Long, done: Boolean)
-    }
-
-    class ProgressResponseBody(
-        val tag: Any?,
-        val responseBody: ResponseBody,
-        val progressListener : ProgressListener
-    ) : ResponseBody() {
-        private var bufferedSource : BufferedSource? = null
-
-        override fun contentLength() = responseBody.contentLength()
-        override fun contentType() = responseBody.contentType()
-
-        override fun source(): BufferedSource {
-            if (bufferedSource == null)
-                bufferedSource = Okio.buffer(source(responseBody.source()))
-
-            return bufferedSource!!
-        }
-
-        private fun source(source: Source) = object: ForwardingSource(source) {
-            var totalBytesRead = 0L
-
-            override fun read(sink: Buffer, byteCount: Long): Long {
-                val bytesRead = super.read(sink, byteCount)
-
-                totalBytesRead += if (bytesRead == -1L) 0L else bytesRead
-                progressListener.update(tag, totalBytesRead, responseBody.contentLength(), bytesRead == -1L)
-
-                return bytesRead
-            }
-
-        }
-    }
-
-    init {
-        interceptors[Pair::class] =  { chain ->
-            val request = chain.request()
-            var response = chain.proceed(request)
-
-            var retry = 5
-            while (!response.isSuccessful && retry > 0) {
-                response = chain.proceed(request)
-                retry--
-            }
-
-            response.newBuilder()
-                .body(response.body()?.let {
-                    ProgressResponseBody(request.tag(), it, progressListener)
-                }).build()
-        }
-    }
-    //endregion
-
-    //region Singleton
-    companion object {
-
-        @Volatile private var instance: DownloadWorker? = null
-
-        fun getInstance(context: Context) =
-            instance ?: synchronized(this) {
-                instance ?: DownloadWorker(context).also { instance = it }
-            }
-    }
-    //endregion
-
-    val notificationManager = NotificationManagerCompat.from(context)
-
-    val queue = LinkedBlockingQueue<Int>()
-
-    /*
-    * KEY
-    *  primary galleryID
-    *  secondary index
-    * PRIMARY VALUE
-    *  MutableList -> Download in progress
-    *  null -> Loading / Gallery doesn't exist
-    * SECONDARY VALUE
-    *  0 <= value < 100 -> Download in progress
-    *  Float.POSITIVE_INFINITY -> Download completed
-    */
-    val progress = SparseArray<MutableList<Float>?>()
-    val notification = SparseArray<NotificationCompat.Builder?>()
-
-    private val loop = loop()
-    private val worker = SparseArray<Job?>()
-
-    fun stop() {
-        queue.clear()
-
-        loop.cancel()
-        for (i in 0 until worker.size()) {
-            val galleryID = worker.keyAt(i)
-
-            Cache(this@DownloadWorker).setDownloading(galleryID, false)
-            worker[galleryID]?.cancel()
-        }
-
-        client.dispatcher().queuedCalls().filter {
-            it.request().tag() is Pair<*, *>
-        }.forEach {
-            it.cancel()
-        }
-        client.dispatcher().runningCalls().filter {
-            it.request().tag() is Pair<*, *>
-        }.forEach {
-            it.cancel()
-        }
-
-        progress.clear()
-        notification.clear()
-        notificationManager.cancelAll()
-    }
-
-    fun cancel(galleryID: Int) {
-        queue.remove(galleryID)
-        worker[galleryID]?.cancel()
-
-        client.dispatcher().queuedCalls().filter {
-            ((it.request().tag() as Pair<*, *>).first as Int) == galleryID
-        }.forEach {
-            it.cancel()
-        }
-        client.dispatcher().runningCalls().filter {
-            ((it.request().tag() as Pair<*, *>).first as Int) == galleryID
-        }.forEach {
-            it.cancel()
-        }
-
-        progress.remove(galleryID)
-        notification.remove(galleryID)
-        notificationManager.cancel(galleryID)
-    }
-
-    fun isCompleted(galleryID: Int) = progress[galleryID]?.all { it.isInfinite() } == true
-
-    private fun queueDownload(galleryID: Int, reader: Reader, index: Int, callback: Callback) {
-        val lowQuality = preferences.getBoolean("low_quality", false)
-
-        val request = Request.Builder().apply {
-            when (reader.code) {
-                Code.HITOMI -> {
-                    url(
-                        imageUrlFromImage(
-                            galleryID,
-                            reader.galleryInfo.files[index],
-                            !lowQuality
-                        )
-                    )
-                    addHeader("Referer", getReferer(galleryID))
-                }
-                Code.HIYOBI -> {
-                    url(createImgList(galleryID, reader, lowQuality)[index].path)
-                }
-                else -> {
-                    //shouldn't be called anyway
-                }
-            }
-            tag(galleryID to index)
-        }.build()
-
-        client.newCall(request).enqueue(callback)
-    }
-
-    private fun download(galleryID: Int) = CoroutineScope(Dispatchers.IO).launch {
-        val reader = Cache(this@DownloadWorker).getReader(galleryID)
-
-        //gallery doesn't exist
-        if (reader == null) {
-            progress.put(galleryID, null)
-
-            Cache(this@DownloadWorker).setDownloading(galleryID, false)
-            return@launch
-        }
-
-        val cache = Cache(this@DownloadWorker).getImages(galleryID)
-
-        progress.put(galleryID, reader.galleryInfo.files.indices.map { index ->
-            if (cache?.firstOrNull { it?.nameWithoutExtension?.toIntOrNull()  == index } != null)
-                Float.POSITIVE_INFINITY
-            else
-                0F
-        }.toMutableList())
-
-        if (notification[galleryID] == null)
-            initNotification(galleryID)
-
-        notification[galleryID]?.setContentTitle(reader.galleryInfo.title)
-        notify(galleryID)
-
-        if (isCompleted(galleryID)) {
-            with(Cache(this@DownloadWorker)) {
-                if (isDownloading(galleryID)) {
-                    moveToDownload(galleryID)
-                    setDownloading(galleryID, false)
-                }
-            }
-
-            return@launch
-        }
-
-        for (i in reader.galleryInfo.files.indices) {
-            val callback = object : Callback {
-                override fun onFailure(call: Call, e: IOException) {
-                    if (e.message?.contains("cancel", true) != false)
-                        return
-
-                    cancel(galleryID)
-                    queue.add(galleryID)
-                }
-
-                override fun onResponse(call: Call, response: Response) {
-                    if (response.code() != 200) {
-                        response.close()
-                        onFailure(call, IOException())
-                        return
-                    }
-
-                    val ext = call.request().url().encodedPath().split('.').last()
-
-                    try {
-                        response.body()!!.use {
-                            Cache(this@DownloadWorker).putImage(galleryID, i, ext, it.byteStream())
-                        }
-                        progress[galleryID]?.set(i, Float.POSITIVE_INFINITY)
-
-                        notify(galleryID)
-
-                        CoroutineScope(Dispatchers.IO).launch {
-                            if (isCompleted(galleryID)) {
-                                with(Cache(this@DownloadWorker)) {
-                                    if (isDownloading(galleryID)) {
-                                        moveToDownload(galleryID)
-                                        setDownloading(galleryID, false)
-                                    }
-                                }
-                            }
-                        }
-                    } catch (e: Exception) {
-                        FirebaseCrashlytics.getInstance().apply {
-                            log("FAIL ON OK ${call.request().tag()} (${e.message})")
-                            setCustomKey("POS", "FAIL ON OK")
-                            recordException(e)
-                        }
-
-                        File(Cache(this@DownloadWorker).getCachedGallery(galleryID), "%05d.$ext".format(i)).delete()
-
-                        cancel(galleryID)
-                        queue.add(galleryID)
-                    }
-                }
-            }
-
-            if (progress[galleryID]?.get(i)?.isFinite() == true)
-                queueDownload(galleryID, reader, i, callback)
-        }
-    }
-
-    private fun notify(galleryID: Int) {
-        val max = progress[galleryID]?.size ?: 0
-        val progress = progress[galleryID]?.count { it.isInfinite() } ?: 0
-
-        if (isCompleted(galleryID)) {
-            notification[galleryID]
-                ?.setContentText(getString(R.string.reader_notification_complete))
-                ?.setSmallIcon(android.R.drawable.stat_sys_download_done)
-                ?.setProgress(0, 0, false)
-                ?.setOngoing(false)
-
-            notificationManager.cancel(galleryID)
-        } else
-            notification[galleryID]
-                ?.setProgress(max, progress, false)
-                ?.setContentText("$progress/$max")
-
-        if (Cache(this).isDownloading(galleryID) && notification[galleryID] != null)
-            notification[galleryID]?.let { notificationManager.notify(galleryID, it.build()) }
-        else
-            notificationManager.cancel(galleryID)
-    }
-
-    private fun initNotification(galleryID: Int) {
-        val intent = Intent(this, ReaderActivity::class.java).apply {
-            putExtra("galleryID", galleryID)
-        }
-        val pendingIntent = TaskStackBuilder.create(this).run {
-            addNextIntentWithParentStack(intent)
-            getPendingIntent(galleryID, PendingIntent.FLAG_UPDATE_CURRENT)
-        }
-
-        notification.put(galleryID, NotificationCompat.Builder(this, "download").apply {
-            setContentTitle(getString(R.string.reader_loading))
-            setContentText(getString(R.string.reader_notification_text))
-            setSmallIcon(android.R.drawable.stat_sys_download)                                  // had to use this because old android doesn't support VectorDrawable on Notification :P
-            setContentIntent(pendingIntent)
-            setProgress(0, 0, true)
-            setOngoing(true)
-        })
-    }
-
-    private fun loop() = CoroutineScope(Dispatchers.Default).launch {
-        while (true) {
-            if (queue.isEmpty())
-                continue
-
-            val galleryID = queue.peek() ?: continue
-
-            if (progress.indexOfKey(galleryID) >= 0)    // Gallery already downloading!
-                cancel(galleryID)
-
-            if (notification[galleryID] == null)
-                initNotification(galleryID)
-
-            if (Cache(this@DownloadWorker).isDownloading(galleryID))
-                notification[galleryID]?.let { notificationManager.notify(galleryID, it.build()) }
-
-            worker.put(galleryID, download(galleryID))
-            queue.poll()
-        }
-    }
-
-}
--- a/app/src/main/java/xyz/quaver/pupil/util/download/Metadata.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/download/Metadata.kt
@@ -1,46 +0,0 @@
-/*
- *     Pupil, Hitomi.la viewer for Android
- *     Copyright (C) 2020  tom5079
- *
- *     This program is free software: you can redistribute it and/or modify
- *     it under the terms of the GNU General Public License as published by
- *     the Free Software Foundation, either version 3 of the License, or
- *     (at your option) any later version.
- *
- *     This program is distributed in the hope that it will be useful,
- *     but WITHOUT ANY WARRANTY; without even the implied warranty of
- *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *     GNU General Public License for more details.
- *
- *     You should have received a copy of the GNU General Public License
- *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package xyz.quaver.pupil.util.download
-
-import kotlinx.serialization.Serializable
-import xyz.quaver.hitomi.GalleryBlock
-import xyz.quaver.hitomi.Reader
-
-@Suppress("DEPRECATION")
-@Deprecated("Use downloader.Cache.Metadata instead")
-@Serializable
-data class Metadata(
-    var thumbnail: String? = null,
-    var galleryBlock: GalleryBlock? = null,
-    var reader: Reader? = null,
-    var isDownloading: Boolean? = null
-) {
-    constructor(
-        metadata: Metadata?,
-        thumbnail: String? = null,
-        galleryBlock: GalleryBlock? = null,
-        readers: Reader? = null,
-        isDownloading: Boolean? = null
-    ) : this(
-        thumbnail ?: metadata?.thumbnail,
-        galleryBlock ?: metadata?.galleryBlock,
-        readers ?: metadata?.reader,
-        isDownloading ?: metadata?.isDownloading
-    )
-}
--- a/app/src/main/java/xyz/quaver/pupil/util/downloader/Cache.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/downloader/Cache.kt
@@ -20,38 +20,98 @@ package xyz.quaver.pupil.util.downloader

 import android.content.Context
 import android.content.ContextWrapper
-import android.util.SparseArray
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
-import kotlinx.coroutines.withContext
+import android.net.Uri
+import kotlinx.coroutines.*
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.decodeFromString
 import kotlinx.serialization.encodeToString
 import kotlinx.serialization.json.Json
 import okhttp3.Request
-import xyz.quaver.Code
-import xyz.quaver.hitomi.GalleryBlock
-import xyz.quaver.hitomi.Reader
 import xyz.quaver.io.FileX
 import xyz.quaver.io.util.*
 import xyz.quaver.pupil.client
-import xyz.quaver.pupil.util.Preferences
+import xyz.quaver.pupil.hitomi.*
+import java.io.File
 import java.io.IOException
+import java.util.concurrent.ConcurrentHashMap
+
+@Serializable
+data class OldReader(
+    val code: String,
+    val galleryInfo: OldGalleryInfo
+)
+
+@Serializable
+data class OldGalleryInfo(
+    val language_localname: String? = null,
+    val language: String? = null,
+    val date: String? = null,
+    val files: List<OldGalleryFiles>,
+    val id: Int? = null,
+    val type: String? = null,
+    val title: String? = null
+)
+
+@Serializable
+data class OldGalleryFiles(
+    val width: Int,
+    val hash: String,
+    val haswebp: Int = 0,
+    val name: String,
+    val height: Int,
+    val hasavif: Int = 0,
+    val hasavifsmalltn: Int? = 0
+)
+
+@Serializable
+data class OldMetadata(
+    var galleryBlock: GalleryBlock? = null,
+    var reader: OldReader? = null,
+    var imageList: MutableList<String?>? = null
+) {
+    fun copy(): OldMetadata = OldMetadata(galleryBlock, reader, imageList?.let { MutableList(it.size) { i -> it[i] } })
+}

@Serializable
 data class Metadata(
    var galleryBlock: GalleryBlock? = null,
-    var reader: Reader? = null,
+    var galleryInfo: GalleryInfo? = null,
    var imageList: MutableList<String?>? = null
 ) {
-    fun copy(): Metadata = Metadata(galleryBlock, reader, imageList?.let { MutableList(it.size) { i -> it[i] } })
+    constructor(old: OldMetadata) : this(
+        old.galleryBlock,
+        old.reader?.galleryInfo?.let { oldGalleryInfo ->
+            GalleryInfo(
+                oldGalleryInfo.id.toString(),
+                oldGalleryInfo.title ?: "",
+                null,
+                oldGalleryInfo.language,
+                oldGalleryInfo.type ?: "",
+                oldGalleryInfo.date ?: "",
+                files = oldGalleryInfo.files.map {
+                    GalleryFiles(
+                        it.width,
+                        it.hash,
+                        it.haswebp,
+                        it.name,
+                        it.height,
+                        it.hasavif,
+                        it.hasavifsmalltn
+                    )
+                }
+            )
+        },
+        old.imageList
+    )
+
+    fun copy(): Metadata = Metadata(galleryBlock, galleryInfo, imageList?.let { MutableList(it.size) { i -> it[i] } })
 }

 class Cache private constructor(context: Context, val galleryID: Int) : ContextWrapper(context) {
-
    companion object {
-        val instances = SparseArray<Cache>()
+        val instances = ConcurrentHashMap<Int, Cache>()

        fun getInstance(context: Context, galleryID: Int) =
            instances[galleryID] ?: synchronized(this) {
@@ -59,9 +119,9 @@ class Cache private constructor(context: Context, val galleryID: Int) : ContextW
            }

        @Synchronized
-        fun delete(galleryID: Int) {
-            instances[galleryID]?.cacheFolder?.deleteRecursively()
-            instances.delete(galleryID)
+        fun delete(context: Context, galleryID: Int) {
+            File(context.cacheDir, "imageCache/$galleryID").deleteRecursively()
+            instances.remove(galleryID)
        }
    }

@@ -70,10 +130,14 @@ class Cache private constructor(context: Context, val galleryID: Int) : ContextW
    }

    var metadata = kotlin.runCatching {
-        findFile(".metadata")?.readText()?.let {
-            Json.decodeFromString<Metadata>(it)
+        findFile(".metadata")?.readText()?.let { metadata ->
+            kotlin.runCatching {
+                Json.decodeFromString<Metadata>(metadata)
+            }.getOrElse {
+                Metadata(json.decodeFromString<OldMetadata>(metadata))
+            }
        }
-    }.getOrNull() ?: Metadata()
+    }.onFailure { it.printStackTrace() }.getOrNull() ?: Metadata()

    val downloadFolder: FileX?
        get() = DownloadManager.getInstance(this).getDownloadFolder(galleryID)
@@ -106,125 +170,128 @@ class Cache private constructor(context: Context, val galleryID: Int) : ContextW
    }

    suspend fun getGalleryBlock(): GalleryBlock? {
-        val sources = listOf(
-            { xyz.quaver.hitomi.getGalleryBlock(galleryID) },
-            { xyz.quaver.hiyobi.getGalleryBlock(galleryID) }
-        )
-
        return metadata.galleryBlock
            ?: withContext(Dispatchers.IO) {
-                var galleryBlock: GalleryBlock? = null
-
-                for (source in sources) {
-                    galleryBlock = try {
-                        source.invoke()
-                    } catch (e: Exception) { null }
-
-                    if (galleryBlock != null)
-                        break
-                }
-
-                galleryBlock?.also {
-                    setMetadata { metadata -> metadata.galleryBlock = it }
-                }
+                try {
+                    getGalleryBlock(galleryID).also {
+                        setMetadata { metadata -> metadata.galleryBlock = it }
+                    }
+                } catch (e: Exception) { return@withContext null }
            }
    }

    @Suppress("BlockingMethodInNonBlockingContext")
-    suspend fun getThumbnail(): ByteArray? =
-        findFile(".thumbnail")?.readBytes()
+    suspend fun getThumbnail(): Uri =
+        findFile(".thumbnail")?.uri
            ?: getGalleryBlock()?.thumbnails?.firstOrNull()?.let { withContext(Dispatchers.IO) {
                kotlin.runCatching {
                    val request = Request.Builder()
                        .url(it)
+                        .header("Referer", "https://hitomi.la/")
                        .build()

                    client.newCall(request).execute().also { if (it.code() != 200) throw IOException() }.body()?.use { it.bytes() }
-                }.getOrNull()?.also { kotlin.run {
-                    cacheFolder.getChild(".thumbnail").writeBytes(it)
-                } }
-            } }
+                }.getOrNull()?.let { thumbnail -> kotlin.runCatching {
+                    cacheFolder.getChild(".thumbnail").also {
+                        if (!it.exists())
+                            it.createNewFile()

-    suspend fun getReader(): Reader? {
-        val mirrors = Preferences.get<String>("mirrors").let { if (it.isEmpty()) emptyList() else it.split('>') }
+                        it.writeBytes(thumbnail)
+                    }
+                }.getOrNull()?.uri }
+            } } ?: Uri.EMPTY

-        val sources = mapOf(
-            Code.HITOMI to { xyz.quaver.hitomi.getReader(galleryID) },
-            Code.HIYOBI to { xyz.quaver.hiyobi.getReader(galleryID) }
-        ).let {
-            if (mirrors.isNotEmpty())
-                it.toSortedMap{ o1, o2 -> mirrors.indexOf(o1.name) - mirrors.indexOf(o2.name) }
-            else
-                it
-        }
+    suspend fun getGalleryInfo(): GalleryInfo? {

-        return metadata.reader
+        return metadata.galleryInfo
            ?: withContext(Dispatchers.IO) {
-                var reader: Reader? = null
+                try {
+                    getGalleryInfo(galleryID).also {
+                        setMetadata { metadata ->
+                            metadata.galleryInfo = it

-                for (source in sources) {
-                    reader = try {
-                        source.value.invoke()
-                    } catch (e: Exception) {
-                        null
-                    }
-
-                   if (reader != null)
-                       break
-                }
-
-                reader?.also {
-                    setMetadata { metadata ->
-                        metadata.reader = it
-
-                        if (metadata.imageList == null)
-                            metadata.imageList = MutableList(reader.galleryInfo.files.size) { null }
+                            if (metadata.imageList == null)
+                                metadata.imageList = MutableList(it.files.size) { null }
+                        }
                    }
+                } catch (e: Exception) {
+                    null
                }
            }
    }

    fun getImage(index: Int): FileX? =
-        metadata.imageList?.get(index)?.let { findFile(it) }
+        metadata.imageList?.getOrNull(index)?.let { findFile(it) }

    @Suppress("BlockingMethodInNonBlockingContext")
-    fun putImage(index: Int, fileName: String, data: ByteArray) {
+    suspend fun putImage(index: Int, fileName: String, data: ByteArray) = coroutineScope {
        val file = cacheFolder.getChild(fileName)

-        file.createNewFile()
+        if (!file.exists())
+            file.createNewFile()
+
        file.writeBytes(data)
        setMetadata { metadata -> metadata.imageList!![index] = fileName }
    }

+    private val lock = ConcurrentHashMap<Int, Mutex>()
    @Suppress("BlockingMethodInNonBlockingContext")
    fun moveToDownload() = CoroutineScope(Dispatchers.IO).launch {
        val downloadFolder = downloadFolder ?: return@launch

-        metadata.imageList?.forEach { imageName ->
-            imageName ?: return@forEach
-            val target = downloadFolder.getChild(imageName)
-            val source = cacheFolder.getChild(imageName)
+        if (lock[galleryID]?.isLocked == true)
+            return@launch

-            if (!source.exists())
-                return@forEach
+        (lock[galleryID] ?: Mutex().also { lock[galleryID] = it }).withLock {
+            val cacheMetadata = cacheFolder.getChild(".metadata")
+            val downloadMetadata = downloadFolder.getChild(".metadata")

-            kotlin.runCatching {
-                target.createNewFile()
-                source.readBytes()?.let { target.writeBytes(it) }
+            if (!cacheMetadata.exists())
+                return@launch
+
+            if (cacheMetadata.exists()) {
+                kotlin.runCatching {
+                    if (!downloadMetadata.exists())
+                        downloadMetadata.createNewFile()
+
+                    downloadMetadata.writeText(Json.encodeToString(metadata))
+                }
            }
-        }

-        val cacheMetadata = cacheFolder.getChild(".metadata")
-        val downloadMetadata = downloadFolder.getChild(".metadata")
+            val cacheThumbnail = cacheFolder.getChild(".thumbnail")
+            val downloadThumbnail = downloadFolder.getChild(".thumbnail")

-        if (cacheMetadata.exists()) {
-            kotlin.runCatching {
-                downloadMetadata.createNewFile()
-                downloadMetadata.writeText(Json.encodeToString(metadata))
-                cacheMetadata.delete()
+            if (cacheThumbnail.exists()) {
+                kotlin.runCatching {
+                    if (!downloadThumbnail.exists())
+                        downloadThumbnail.createNewFile()
+
+                    downloadThumbnail.outputStream()?.use { target -> target.channel.truncate(0L); cacheThumbnail.inputStream()?.use { source ->
+                        source.copyTo(target)
+                    } }
+                    cacheThumbnail.delete()
+                }
            }
-        }

-        cacheFolder.delete()
+            metadata.imageList?.forEach { imageName ->
+                imageName ?: return@forEach
+                val target = downloadFolder.getChild(imageName)
+                val source = cacheFolder.getChild(imageName)
+
+                if (!source.exists())
+                    return@forEach
+
+                kotlin.runCatching {
+                    if (!target.exists())
+                        target.createNewFile()
+
+                    target.outputStream()?.use { target -> target.channel.truncate(0L); source.inputStream()?.use { source ->
+                        source.copyTo(target)
+                    } }
+                }
+            }
+
+            cacheFolder.deleteRecursively()
+        }
    }
 }
--- a/app/src/main/java/xyz/quaver/pupil/util/downloader/DownloadManager.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/downloader/DownloadManager.kt
@@ -20,8 +20,9 @@ package xyz.quaver.pupil.util.downloader

 import android.content.Context
 import android.content.ContextWrapper
-import android.util.Log
-import kotlinx.coroutines.runBlocking
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
 import kotlinx.serialization.decodeFromString
 import kotlinx.serialization.encodeToString
 import kotlinx.serialization.json.Json
@@ -47,14 +48,12 @@ class DownloadManager private constructor(context: Context) : ContextWrapper(con
    val defaultDownloadFolder = FileX(this, getExternalFilesDir(null)!!)

    val downloadFolder: FileX
-        get() = {
-            kotlin.runCatching {
-                FileX(this, Preferences.get<String>("download_folder"))
-            }.getOrElse {
-                Preferences["download_folder"] = defaultDownloadFolder.uri.toString()
-                defaultDownloadFolder
-            }
-        }.invoke()
+        get() = kotlin.runCatching {
+            FileX(this, Preferences.get<String>("download_folder"))
+        }.getOrElse {
+            Preferences["download_folder"] = defaultDownloadFolder.uri.toString()
+            defaultDownloadFolder
+        }

    private var prevDownloadFolder: FileX? = null
    private var downloadFolderMapInstance: MutableMap<Int, String>? = null
@@ -63,30 +62,28 @@ class DownloadManager private constructor(context: Context) : ContextWrapper(con
        get() {
            if (prevDownloadFolder != downloadFolder) {
                prevDownloadFolder = downloadFolder
-                downloadFolderMapInstance = {
+                downloadFolderMapInstance = run {
                    val file = downloadFolder.getChild(".download")
-
                    val data = if (file.exists())
                        kotlin.runCatching {
-                            file.readText()?.let { Json.decodeFromString<MutableMap<Int, String>>(it) }
+                            file.readText()?.let{ Json.decodeFromString<MutableMap<Int, String>>(it) }
                        }.onFailure { file.delete() }.getOrNull()
                    else
                        null
-
-                    data ?: {
+                    data ?: run {
                        file.createNewFile()
-                        mutableMapOf<Int, String>()
-                    }.invoke()
-                }.invoke()
+                        mutableMapOf()
+                    }
+                }
            }

-            return downloadFolderMapInstance!!
+            return downloadFolderMapInstance ?: mutableMapOf()
        }


    @Synchronized
    fun isDownloading(galleryID: Int): Boolean {
-        val isThisGallery: (Call) -> Boolean = { (it.request().tag() as? DownloadService.Tag)?.galleryID == galleryID }
+        val isThisGallery: (Call) -> Boolean = { !it.isCanceled && (it.request().tag() as? DownloadService.Tag)?.galleryID == galleryID }

        return downloadFolderMap.containsKey(galleryID)
                && client.dispatcher().let { it.queuedCalls().any(isThisGallery) || it.runningCalls().any(isThisGallery) }
@@ -96,21 +93,19 @@ class DownloadManager private constructor(context: Context) : ContextWrapper(con
    fun getDownloadFolder(galleryID: Int): FileX? =
        downloadFolderMap[galleryID]?.let { downloadFolder.getChild(it) }

-    @Synchronized
-    fun addDownloadFolder(galleryID: Int) {
-        val name = runBlocking {
-            Cache.getInstance(this@DownloadManager, galleryID).getGalleryBlock()
-        }?.formatDownloadFolder() ?: return
+    fun addDownloadFolder(galleryID: Int) = CoroutineScope(Dispatchers.IO).launch {
+        val name = Cache.getInstance(this@DownloadManager, galleryID).getGalleryBlock()
+            ?.formatDownloadFolder() ?: return@launch

        val folder = downloadFolder.getChild(name)

-        if (!folder.exists())
-            folder.mkdir()
-
-        downloadFolderMap[galleryID] = folder.name
+        downloadFolderMap[galleryID] = name

        downloadFolder.getChild(".download").let { if (!it.exists()) it.createNewFile() }
        downloadFolder.getChild(".download").writeText(Json.encodeToString(downloadFolderMap))
+
+        if (folder.exists()) return@launch
+        folder.mkdir()
    }

    @Synchronized
--- a/app/src/main/java/xyz/quaver/pupil/util/file.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/file.kt
@@ -19,35 +19,49 @@
 package xyz.quaver.pupil.util

 import android.content.Context
-import android.os.storage.StorageManager
-import androidx.core.content.ContextCompat
-import androidx.core.net.toUri
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+import xyz.quaver.pupil.histories
+import xyz.quaver.pupil.util.downloader.Cache
+import xyz.quaver.pupil.util.downloader.DownloadManager
 import java.io.File
-import java.io.FileOutputStream
-import java.lang.reflect.Array
-import java.net.URL

-@Suppress("DEPRECATION")
-@Deprecated("Use downloader.Cache instead")
-fun getCachedGallery(context: Context, galleryID: Int) =
-    File(getDownloadDirectory(context), galleryID.toString()).let {
-        if (it.exists())
-            it
-        else
-            File(context.cacheDir, "imageCache/$galleryID")
+val mutex = Mutex()
+fun cleanCache(context: Context) = CoroutineScope(Dispatchers.IO).launch {
+    if (mutex.isLocked) return@launch
+
+    mutex.withLock {
+        val cacheFolder = File(context.cacheDir, "imageCache")
+        val downloadManager = DownloadManager.getInstance(context)
+
+        val limit = (Preferences.get<String>("cache_limit").toLongOrNull() ?: 0L)*1024*1024*1024
+
+        if (limit == 0L) return@withLock
+
+        val cacheSize = {
+            var size = 0L
+
+            cacheFolder.walk().forEach {
+                size += it.length()
+            }
+
+            size
+        }
+
+        if (cacheSize.invoke() > limit)
+            while (cacheSize.invoke() > limit/2) {
+                val caches = cacheFolder.list() ?: return@withLock
+
+                synchronized(histories) {
+                    (histories.firstOrNull {
+                        caches.contains(it.toString()) && !downloadManager.isDownloading(it)
+                    } ?: return@withLock).let {
+                        Cache.delete(context, it)
+                    }
+                }
+            }
    }
-
-@Suppress("DEPRECATION")
-@Deprecated("Use downloader.Cache instead")
-fun getDownloadDirectory(context: Context) =
-    Preferences.get<String>("dl_location").let {
-        if (it.isNotEmpty() && !it.startsWith("content"))
-            File(it)
-        else
-            context.getExternalFilesDir(null)!!
-    }
-
-@Suppress("DEPRECATION")
-@Deprecated("Use FileX instead")
-fun File.isParentOf(another: File) =
-    another.absolutePath.startsWith(this.absolutePath)
+}
--- a/app/src/main/java/xyz/quaver/pupil/util/misc.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/misc.kt
@@ -18,19 +18,24 @@

 package xyz.quaver.pupil.util

+import android.Manifest
 import android.annotation.SuppressLint
+import android.app.Activity
 import android.content.Context
-import android.content.Intent
+import android.content.pm.PackageManager
 import android.os.Build
+import androidx.activity.result.ActivityResultLauncher
+import androidx.appcompat.app.AlertDialog
+import androidx.core.app.ActivityCompat
 import androidx.core.content.ContextCompat
+import com.google.firebase.crashlytics.FirebaseCrashlytics
+import kotlinx.serialization.json.*
 import okhttp3.OkHttpClient
 import okhttp3.Request
-import xyz.quaver.Code
-import xyz.quaver.hitomi.GalleryBlock
-import xyz.quaver.hitomi.Reader
-import xyz.quaver.hitomi.getReferer
-import xyz.quaver.hitomi.imageUrlFromImage
-import xyz.quaver.hiyobi.createImgList
+import xyz.quaver.pupil.R
+import xyz.quaver.pupil.hitomi.GalleryBlock
+import xyz.quaver.pupil.hitomi.GalleryInfo
+import xyz.quaver.pupil.hitomi.imageUrlFromImage
 import java.util.*
 import kotlin.collections.ArrayList

@@ -40,7 +45,7 @@ fun String.wordCapitalize() : String {

    @SuppressLint("DefaultLocale")
    for (word in this.split(" "))
-        result.add(word.capitalize(Locale.US))
+        result.add(word.replaceFirstChar { if (it.isLowerCase()) it.titlecase(Locale.US) else it.toString() })

    return result.joinToString(" ")
 }
@@ -82,7 +87,8 @@ fun OkHttpClient.Builder.proxyInfo(proxyInfo: ProxyInfo) = this.apply {
 val formatMap = mapOf<String, GalleryBlock.() -> (String)>(
    "-id-" to { id.toString() },
    "-title-" to { title },
-    "-artist-" to { artists.joinToString() }
+    "-artist-" to { if (artists.isNotEmpty()) artists.joinToString() else "N/A" },
+    "-group-" to { if (groups.isNotEmpty()) groups.joinToString() else "N/A" }
    // TODO
 )
 /**
@@ -93,39 +99,74 @@ fun GalleryBlock.formatDownloadFolder(): String =
        formatMap.entries.fold(it) { str, (k, v) ->
            str.replace(k, v.invoke(this), true)
        }
-    }.replace("/", "")
+    }.replace(Regex("""[*\\|"?><:/]"""), "").ellipsize(127)

 fun GalleryBlock.formatDownloadFolderTest(format: String): String =
    format.let {
        formatMap.entries.fold(it) { str, (k, v) ->
            str.replace(k, v.invoke(this), true)
        }
-    }.replace("/", "")
+    }.replace(Regex("""[*\\|"?><:/]"""), "").ellipsize(127)

-val Reader.requestBuilders: List<Request.Builder>
-    get() {
-        val galleryID = this.galleryInfo.id ?: 0
-        val lowQuality = Preferences["low_quality", true]
-
-        return when(code) {
-            Code.HITOMI -> {
-                this.galleryInfo.files.map {
-                    Request.Builder()
-                        .url(imageUrlFromImage(galleryID, it, !lowQuality))
-                        .header("Referer", getReferer(galleryID))
+suspend fun GalleryInfo.getRequestBuilders(): List<Request.Builder> {
+    val galleryID = this.id.toIntOrNull() ?: 0
+    return this.files.map {
+        Request.Builder()
+            .url(
+                runCatching {
+                    imageUrlFromImage(galleryID, it, false)
                }
-            }
-            Code.HIYOBI -> {
-                createImgList(galleryID, this, lowQuality).map {
-                    Request.Builder()
-                        .url(it.path)
+                .onFailure {
+                    FirebaseCrashlytics.getInstance().recordException(it)
                }
-            }
-        }
+                .getOrDefault("https://a/")
+            )
+            .header("Referer", "https://hitomi.la/")
    }
+}

 fun String.ellipsize(n: Int): String =
    if (this.length > n)
        this.slice(0 until n) + "…"
    else
-        this
+        this
+
+operator fun JsonElement.get(index: Int) =
+    this.jsonArray[index]
+
+operator fun JsonElement.get(tag: String) =
+    this.jsonObject[tag]
+
+fun JsonElement.getOrNull(tag: String) = kotlin.runCatching {
+    this.jsonObject.getOrDefault(tag, null)
+}.getOrNull()
+
+val JsonElement.content
+    get() = this.jsonPrimitive.contentOrNull
+
+fun checkNotificationEnabled(context: Context) =
+    Build.VERSION.SDK_INT < Build.VERSION_CODES.TIRAMISU ||
+    ContextCompat.checkSelfPermission(context, Manifest.permission.POST_NOTIFICATIONS) == PackageManager.PERMISSION_GRANTED
+
+fun showNotificationPermissionExplanationDialog(context: Context) {
+    AlertDialog.Builder(context)
+        .setTitle(R.string.warning)
+        .setMessage(R.string.notification_denied)
+        .setPositiveButton(android.R.string.ok) { _, _ -> }
+        .show()
+}
+
+fun requestNotificationPermission(
+    activity: Activity,
+    requestPermissionLauncher: ActivityResultLauncher<String>,
+    showRationale: Boolean = true,
+    ifGranted: () -> Unit,
+) {
+    when {
+        checkNotificationEnabled(activity) -> ifGranted()
+        showRationale && ActivityCompat.shouldShowRequestPermissionRationale(activity, Manifest.permission.POST_NOTIFICATIONS) ->
+            showNotificationPermissionExplanationDialog(activity)
+        else ->
+            requestPermissionLauncher.launch(Manifest.permission.POST_NOTIFICATIONS)
+    }
+}
--- a/app/src/main/java/xyz/quaver/pupil/util/translation.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/translation.kt
@@ -0,0 +1,68 @@
+/*
+ *     Pupil, Hitomi.la viewer for Android
+ *     Copyright (C) 2020  tom5079
+ *
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ *
+ *     This program is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package xyz.quaver.pupil.util
+
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.serialization.decodeFromString
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.jsonArray
+import kotlinx.serialization.json.jsonPrimitive
+import okhttp3.Request
+import xyz.quaver.pupil.client
+import java.io.IOException
+import java.util.*
+
+private val filesURL = "https://api.github.com/repos/tom5079/Pupil/git/trees/tags"
+private val contentURL = "https://raw.githubusercontent.com/tom5079/Pupil/tags/"
+
+var translations: Map<String, String> = run {
+    updateTranslations()
+    emptyMap()
+}
+    private set
+
+@Suppress("BlockingMethodInNonBlockingContext")
+fun updateTranslations() = CoroutineScope(Dispatchers.IO).launch {
+    translations = emptyMap()
+    kotlin.runCatching {
+        translations = Json.decodeFromString<Map<String, String>>(client.newCall(
+            Request.Builder()
+                .url(contentURL + "${Preferences["tag_translation", ""].let { if (it.isEmpty()) Locale.getDefault().language else it }}.json")
+                .build()
+        ).execute().also { if (it.code() != 200) return@launch }.body()?.use { it.string() } ?: return@launch).filterValues { it.isNotEmpty() }
+    }
+}
+
+fun getAvailableLanguages(): List<String> {
+    val languages = Locale.getISOLanguages()
+
+    val json = Json.parseToJsonElement(client.newCall(
+        Request.Builder()
+            .url(filesURL)
+            .build()
+    ).execute().also { if (it.code() != 200) throw IOException() }.body()?.use { it.string() } ?: return emptyList())
+
+    return listOf("en") + (json["tree"]?.jsonArray?.mapNotNull {
+        val name = it["path"]?.jsonPrimitive?.content?.takeWhile { c -> c != '.' }
+
+        languages.firstOrNull { code -> code.equals(name, ignoreCase = true) }
+    } ?: emptyList())
+}
--- a/app/src/main/java/xyz/quaver/pupil/util/update.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/update.kt
@@ -18,48 +18,23 @@

 package xyz.quaver.pupil.util

-import android.annotation.SuppressLint
 import android.app.DownloadManager
-import android.app.PendingIntent
-import android.content.BroadcastReceiver
 import android.content.Context
-import android.content.Intent
-import android.content.IntentFilter
 import android.net.Uri
-import android.util.Base64
-import android.util.Log
 import android.webkit.URLUtil
 import androidx.appcompat.app.AlertDialog
-import androidx.core.app.NotificationCompat
-import androidx.core.app.NotificationManagerCompat
 import androidx.preference.PreferenceManager
-import com.google.firebase.crashlytics.FirebaseCrashlytics
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
 import kotlinx.coroutines.launch
-import kotlinx.serialization.decodeFromString
-import kotlinx.serialization.encodeToString
 import kotlinx.serialization.json.*
 import okhttp3.Call
 import okhttp3.Callback
 import okhttp3.Request
 import okhttp3.Response
 import ru.noties.markwon.Markwon
-import xyz.quaver.hitomi.GalleryBlock
-import xyz.quaver.hitomi.Reader
-import xyz.quaver.hitomi.getGalleryBlock
-import xyz.quaver.hitomi.getReader
-import xyz.quaver.io.FileX
-import xyz.quaver.io.util.getChild
-import xyz.quaver.io.util.*
-import xyz.quaver.pupil.BuildConfig
-import xyz.quaver.pupil.R
-import xyz.quaver.pupil.client
-import xyz.quaver.pupil.favorites
-import xyz.quaver.pupil.services.DownloadService
-import xyz.quaver.pupil.util.downloader.Cache
-import xyz.quaver.pupil.util.downloader.Metadata
+import xyz.quaver.pupil.*
+import xyz.quaver.pupil.types.Tag
 import java.io.File
 import java.io.IOException
 import java.net.URL
@@ -160,6 +135,10 @@ fun checkUpdate(context: Context, force: Boolean = false) {
            val msg = extractReleaseNote(update, Locale.getDefault())
            setMessage(Markwon.create(context).toMarkdown(msg))
            setPositiveButton(android.R.string.ok) { _, _ ->
+                if (!checkNotificationEnabled(context)) {
+                    showNotificationPermissionExplanationDialog(context)
+                    return@setPositiveButton
+                }

                val downloadManager = context.getSystemService(Context.DOWNLOAD_SERVICE) as DownloadManager

@@ -182,10 +161,10 @@ fun checkUpdate(context: Context, force: Boolean = false) {
                    Preferences["update_download_id"] = it
                }
            }
-            setNegativeButton(if (force) android.R.string.cancel else R.string.ignore_update) { _, _ ->
+            setNegativeButton(if (force) android.R.string.cancel else R.string.ignore) { _, _ ->
                if (!force)
                    preferences.edit()
-                        .putLong("ignore_update_until", System.currentTimeMillis() + 604800000)
+                        .putLong("ignore_update_until", System.currentTimeMillis() + 86400000)
                        .apply()
            }
        }
@@ -196,7 +175,7 @@ fun checkUpdate(context: Context, force: Boolean = false) {
    }
 }

-fun restore(url: String, onFailure: ((Throwable) -> Unit)? = null, onSuccess: ((List<Int>) -> Unit)? = null) {
+fun restore(url: String, onFailure: ((Throwable) -> Unit)? = null, onSuccess: ((Int) -> Unit)? = null) {
    if (!URLUtil.isValidUrl(url)) {
        onFailure?.invoke(IllegalArgumentException())
        return
@@ -214,123 +193,22 @@ fun restore(url: String, onFailure: ((Throwable) -> Unit)? = null, onSuccess: ((

        override fun onResponse(call: Call, response: Response) {
            kotlin.runCatching {
-                Json.decodeFromString<List<Int>>(response.also { if (it.code() != 200) throw IOException() }.body().use { it?.string() } ?: "[]").let {
-                    favorites.addAll(it)
-                    onSuccess?.invoke(it)
+                val data = Json.parseToJsonElement(response.also { if (it.code() != 200) throw IOException() }.body().use { it?.string() } ?: "[]")
+
+                when (data) {
+                    is JsonArray -> favorites.addAll(data.map { it.jsonPrimitive.int })
+                    is JsonObject -> {
+                        val newFavorites = data["favorites"]?.let { Json.decodeFromJsonElement<List<Int>>(it) }.orEmpty()
+                        val newFavoriteTags = data["favorite_tags"]?.let { Json.decodeFromJsonElement<List<Tag>>(it) }.orEmpty()
+
+                        favorites.addAll(newFavorites)
+                        favoriteTags.addAll(newFavoriteTags)
+
+                        onSuccess?.invoke(favorites.size + favoriteTags.size)
+                    }
+                    else -> error("data is neither JsonArray or JsonObject")
                }
            }.onFailure { onFailure?.invoke(it) }
        }
    })
-}
-
-private var job: Job? = null
-private val receiver = object: BroadcastReceiver() {
-    val ACTION_CANCEL = "ACTION_IMPORT_CANCEL"
-    override fun onReceive(context: Context?, intent: Intent?) {
-        context ?: return
-
-        when (intent?.action) {
-            ACTION_CANCEL -> {
-                job?.cancel()
-                NotificationManagerCompat.from(context).cancel(R.id.notification_id_import)
-                context.unregisterReceiver(this)
-            }
-        }
-    }
-}
-@SuppressLint("RestrictedApi")
-fun xyz.quaver.pupil.util.downloader.DownloadManager.migrate() {
-    registerReceiver(receiver, IntentFilter().apply { addAction(receiver.ACTION_CANCEL) })
-
-    val notificationManager = NotificationManagerCompat.from(this)
-    val action = NotificationCompat.Action.Builder(0, getText(android.R.string.cancel),
-        PendingIntent.getBroadcast(this, R.id.notification_import_cancel_action.normalizeID(), Intent(receiver.ACTION_CANCEL), PendingIntent.FLAG_UPDATE_CURRENT)
-    ).build()
-    val notification = NotificationCompat.Builder(this, "import")
-        .setContentTitle(getText(R.string.import_old_galleries_notification))
-        .setProgress(0, 0, true)
-        .addAction(action)
-        .setSmallIcon(R.drawable.ic_notification)
-        .setOngoing(true)
-
-    DownloadService.cancel(this)
-
-    job?.cancel()
-    job = CoroutineScope(Dispatchers.IO).launch {
-        val downloadFolders = downloadFolder.listFiles { folder ->
-            folder.isDirectory && !downloadFolderMap.values.contains(folder.name)
-        }?.map {
-            if (it !is FileX)
-                FileX(this@migrate, it)
-            else
-                it
-        }
-
-        if (downloadFolders.isNullOrEmpty()) return@launch
-
-        downloadFolders.forEachIndexed { index, folder ->
-            notification
-                .setContentText(getString(R.string.import_old_galleries_notification_text, index, downloadFolders.size))
-                .setProgress(index, downloadFolders.size, false)
-            notificationManager.notify(R.id.notification_id_import, notification.build())
-
-            kotlin.runCatching {
-                val metadata = kotlin.runCatching {
-                    folder.getChild(".metadata").readText()?.let { Json.parseToJsonElement(it).jsonObject }
-                }.getOrNull()
-
-                val galleryID = folder.name.toIntOrNull() ?: return@runCatching
-
-                val galleryBlock: GalleryBlock? = kotlin.runCatching {
-                    metadata?.get("galleryBlock")?.let { Json.decodeFromJsonElement<GalleryBlock>(it) }
-                }.getOrNull() ?: getGalleryBlock(galleryID)
-                val reader: Reader? = kotlin.runCatching {
-                    metadata?.get("reader")?.let { Json.decodeFromJsonElement<Reader>(it) }
-                }.getOrNull() ?: getReader(galleryID)
-
-                metadata?.get("thumbnail")?.jsonPrimitive?.contentOrNull?.also { thumbnail ->
-                    val file = folder.getChild(".thumbnail").also {
-                        if (it.exists())
-                            it.delete()
-                        it.createNewFile()
-                    }
-
-                    file.writeBytes(Base64.decode(thumbnail, Base64.DEFAULT))
-                }
-
-                val list: MutableList<String?> =
-                    MutableList(reader!!.galleryInfo.files.size) { null }
-
-                folder.listFiles { file ->
-                    file?.nameWithoutExtension?.let {
-                        Regex("""\d{5}""").matches(it) && it.toIntOrNull() != null
-                    } == true
-                }?.forEach {
-                    list[it.nameWithoutExtension.toInt()] = it.name
-                }
-
-                folder.getChild(".metadata").also { if (it.exists()) it.delete(); it.createNewFile() }.writeText(
-                    Json.encodeToString(Metadata(galleryBlock, reader, list))
-                )
-
-                synchronized(Cache) {
-                    Cache.delete(galleryID)
-                }
-                downloadFolderMap[galleryID] = folder.name
-
-                downloadFolder.getChild(".download").let { if (!it.exists()) it.createNewFile(); it.writeText(Json.encodeToString(downloadFolderMap)) }
-            }
-        }
-
-        notification
-            .setContentText(getText(R.string.import_old_galleries_notification_done))
-            .setProgress(0, 0, false)
-            .setOngoing(false)
-            .mActions.clear()
-        notificationManager.notify(R.id.notification_id_import, notification.build())
-
-        kotlin.runCatching {
-            unregisterReceiver(receiver)
-        }
-    }
 }
--- a/app/src/main/res/drawable/dot.xml
+++ b/app/src/main/res/drawable/dot.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2020  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<shape
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="oval">
+
+    <solid
+        android:color="@color/colorAccent"/>
+
+    <size
+        android:width="24dp"
+        android:height="24dp"/>
+</shape>
--- a/app/src/main/res/drawable/eye.xml
+++ b/app/src/main/res/drawable/eye.xml
@@ -0,0 +1,8 @@
+<!-- drawable/eye.xml -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:height="24dp"
+    android:width="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path android:fillColor="?attr/colorControlNormal" android:pathData="M12,9A3,3 0 0,0 9,12A3,3 0 0,0 12,15A3,3 0 0,0 15,12A3,3 0 0,0 12,9M12,17A5,5 0 0,1 7,12A5,5 0 0,1 12,7A5,5 0 0,1 17,12A5,5 0 0,1 12,17M12,4.5C7,4.5 2.73,7.61 1,12C2.73,16.39 7,19.5 12,19.5C17,19.5 21.27,16.39 23,12C21.27,7.61 17,4.5 12,4.5Z" />
+</vector>
--- a/app/src/main/res/drawable/eye_closed.xml
+++ b/app/src/main/res/drawable/eye_closed.xml
@@ -0,0 +1,44 @@
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2020  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="22dp"
+    android:height="15dp"
+    android:viewportWidth="22"
+    android:viewportHeight="15">
+  <path
+      android:pathData="M21.61,5.4C14.21,13.39 7.16,13.37 0.43,5.32"
+      android:strokeWidth="1"
+      android:strokeColor="?attr/colorControlNormal"/>
+  <path
+      android:pathData="M1.32,9.8L3.03,7.8"
+      android:strokeWidth="1"
+      android:strokeColor="?attr/colorControlNormal"/>
+  <path
+      android:pathData="M5.14,12.37L6.16,10.37"
+      android:strokeWidth="1"
+      android:strokeColor="?attr/colorControlNormal"/>
+  <path
+      android:pathData="M16.27,12.37L15.25,10.37"
+      android:strokeWidth="1"
+      android:strokeColor="?attr/colorControlNormal"/>
+  <path
+      android:pathData="M18.78,7.8L20.49,9.8"
+      android:strokeWidth="1"
+      android:strokeColor="?attr/colorControlNormal"/>
+</vector>
--- a/app/src/main/res/drawable/eye_off.xml
+++ b/app/src/main/res/drawable/eye_off.xml
@@ -0,0 +1,8 @@
+<!-- drawable/eye_off.xml -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:height="24dp"
+    android:width="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path android:fillColor="?attr/colorControlNormal" android:pathData="M11.83,9L15,12.16C15,12.11 15,12.05 15,12A3,3 0 0,0 12,9C11.94,9 11.89,9 11.83,9M7.53,9.8L9.08,11.35C9.03,11.56 9,11.77 9,12A3,3 0 0,0 12,15C12.22,15 12.44,14.97 12.65,14.92L14.2,16.47C13.53,16.8 12.79,17 12,17A5,5 0 0,1 7,12C7,11.21 7.2,10.47 7.53,9.8M2,4.27L4.28,6.55L4.73,7C3.08,8.3 1.78,10 1,12C2.73,16.39 7,19.5 12,19.5C13.55,19.5 15.03,19.2 16.38,18.66L16.81,19.08L19.73,22L21,20.73L3.27,3M12,7A5,5 0 0,1 17,12C17,12.64 16.87,13.26 16.64,13.82L19.57,16.75C21.07,15.5 22.27,13.86 23,12C21.27,7.61 17,4.5 12,4.5C10.6,4.5 9.26,4.75 8,5.2L10.17,7.35C10.74,7.13 11.35,7 12,7Z" />
+</vector>
--- a/app/src/main/res/drawable/eye_off_white.xml
+++ b/app/src/main/res/drawable/eye_off_white.xml
@@ -0,0 +1,8 @@
+<!-- drawable/eye_off.xml -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:height="24dp"
+    android:width="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path android:fillColor="#fff" android:pathData="M11.83,9L15,12.16C15,12.11 15,12.05 15,12A3,3 0 0,0 12,9C11.94,9 11.89,9 11.83,9M7.53,9.8L9.08,11.35C9.03,11.56 9,11.77 9,12A3,3 0 0,0 12,15C12.22,15 12.44,14.97 12.65,14.92L14.2,16.47C13.53,16.8 12.79,17 12,17A5,5 0 0,1 7,12C7,11.21 7.2,10.47 7.53,9.8M2,4.27L4.28,6.55L4.73,7C3.08,8.3 1.78,10 1,12C2.73,16.39 7,19.5 12,19.5C13.55,19.5 15.03,19.2 16.38,18.66L16.81,19.08L19.73,22L21,20.73L3.27,3M12,7A5,5 0 0,1 17,12C17,12.64 16.87,13.26 16.64,13.82L19.57,16.75C21.07,15.5 22.27,13.86 23,12C21.27,7.61 17,4.5 12,4.5C10.6,4.5 9.26,4.75 8,5.2L10.17,7.35C10.74,7.13 11.35,7 12,7Z" />
+</vector>
--- a/app/src/main/res/drawable/eye_white.xml
+++ b/app/src/main/res/drawable/eye_white.xml
@@ -0,0 +1,8 @@
+<!-- drawable/eye.xml -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:height="24dp"
+    android:width="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path android:fillColor="#fff" android:pathData="M12,9A3,3 0 0,0 9,12A3,3 0 0,0 12,15A3,3 0 0,0 15,12A3,3 0 0,0 12,9M12,17A5,5 0 0,1 7,12A5,5 0 0,1 12,7A5,5 0 0,1 17,12A5,5 0 0,1 12,17M12,4.5C7,4.5 2.73,7.61 1,12C2.73,16.39 7,19.5 12,19.5C17,19.5 21.27,16.39 23,12C21.27,7.61 17,4.5 12,4.5Z" />
+</vector>
--- a/app/src/main/res/drawable/ic_hiyobi.png
+++ b/app/src/main/res/drawable/ic_hiyobi.png
--- a/app/src/main/res/drawable/icon.xml
+++ b/app/src/main/res/drawable/icon.xml
@@ -0,0 +1,30 @@
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2020  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="640"
+    android:viewportHeight="640">
+  <path
+      android:pathData="M640,320C640,496.61 496.61,640 320,640C143.39,640 0,496.61 0,320C0,143.38 143.39,0 320,0C496.61,0 640,143.38 640,320Z"
+      android:fillColor="#4ec1f5"/>
+  <path
+      android:pathData="M420,320C420,375.19 375.19,420 320,420C264.81,420 220,375.19 220,320C220,264.81 264.81,220 320,220C375.19,220 420,264.81 420,320Z"
+      android:fillColor="#1d1d1d"/>
+</vector>
--- a/app/src/main/res/drawable/icon_red.xml
+++ b/app/src/main/res/drawable/icon_red.xml
@@ -0,0 +1,30 @@
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2020  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="640"
+    android:viewportHeight="640">
+  <path
+      android:pathData="M640,320C640,496.61 496.61,640 320,640C143.39,640 0,496.61 0,320C0,143.38 143.39,0 320,0C496.61,0 640,143.38 640,320Z"
+      android:fillColor="@color/colorAccent"/>
+  <path
+      android:pathData="M420,320C420,375.19 375.19,420 320,420C264.81,420 220,375.19 220,320C220,264.81 264.81,220 320,220C375.19,220 420,264.81 420,320Z"
+      android:fillColor="#1d1d1d"/>
+</vector>
--- a/app/src/main/res/drawable/menu.xml
+++ b/app/src/main/res/drawable/menu.xml
@@ -1,4 +1,4 @@
 <!--drawable/menu.xml-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:width="24dp" android:viewportWidth="24" android:viewportHeight="24">
-    <path android:fillColor="#fff" android:pathData="M3 6h18v2H3V6m0 5h18v2H3v-2m0 5h18v2H3v-2z"/>
+    <path android:fillColor="?attr/colorControlNormal" android:pathData="M3 6h18v2H3V6m0 5h18v2H3v-2m0 5h18v2H3v-2z"/>
 </vector>
--- a/app/src/main/res/drawable/ic_navigate_next_black_24dp.xml
+++ b/app/src/main/res/drawable/ic_navigate_next_black_24dp.xml
@@ -1,3 +1,3 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android" android:width="24dp" android:height="24dp" android:viewportWidth="24.0" android:viewportHeight="24.0">
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:width="48dp" android:height="48dp" android:viewportWidth="24.0" android:viewportHeight="24.0">
    <path android:fillColor="#FF000000" android:pathData="M10 6L8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/>
 </vector>
--- a/app/src/main/res/drawable/navigate_prev.xml
+++ b/app/src/main/res/drawable/navigate_prev.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:width="48dp" android:height="48dp" android:viewportWidth="24.0" android:viewportHeight="24.0">
+    <group android:pivotX="12" android:scaleX="-1">
+        <path android:fillColor="#FF000000" android:pathData="M10 6L8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/>
+    </group>
+</vector>
--- a/app/src/main/res/drawable/reader_item_boundary.xml
+++ b/app/src/main/res/drawable/reader_item_boundary.xml
@@ -4,7 +4,7 @@
    <item android:bottom="1dp" android:left="1dp" android:right="1dp" android:top="1dp">
        <shape android:shape="rectangle">
            <stroke android:width="1dp" android:color="#555555"/>
-            <solid android:color="@color/transparent"/>
+            <solid android:color="@android:color/transparent"/>
        </shape>
    </item>
 </layer-list>
--- a/app/src/main/res/drawable/sort_variant.xml
+++ b/app/src/main/res/drawable/sort_variant.xml
@@ -0,0 +1,8 @@
+<!-- drawable/sort_variant.xml -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:height="24dp"
+    android:width="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path android:fillColor="#000" android:pathData="M3,13H15V11H3M3,6V8H21V6M3,18H9V16H3V18Z" />
+</vector>
--- a/app/src/main/res/layout-v23/activity_main_content.xml
+++ b/app/src/main/res/layout-v23/activity_main_content.xml
@@ -1,150 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~     Pupil, Hitomi.la viewer for Android
-  ~     Copyright (C) 2019  tom5079
-  ~
-  ~     This program is free software: you can redistribute it and/or modify
-  ~     it under the terms of the GNU General Public License as published by
-  ~     the Free Software Foundation, either version 3 of the License, or
-  ~     (at your option) any later version.
-  ~
-  ~     This program is distributed in the hope that it will be useful,
-  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
-  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  ~     GNU General Public License for more details.
-  ~
-  ~     You should have received a copy of the GNU General Public License
-  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
-  -->
-
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".ui.MainActivity">
-
-    <androidx.coordinatorlayout.widget.CoordinatorLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent">
-
-        <com.google.android.material.appbar.AppBarLayout
-            android:id="@+id/main_appbar_layout"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:background="@color/transparent"
-            android:visibility="invisible"
-            app:layout_constraintTop_toTopOf="parent"
-            app:layout_constraintLeft_toLeftOf="parent">
-
-            <View
-                android:layout_width="match_parent"
-                android:layout_height="64dp"
-                android:visibility="invisible"
-                android:background="@color/transparent"
-                app:layout_scrollFlags="scroll|enterAlways"
-                app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
-
-        </com.google.android.material.appbar.AppBarLayout>
-
-        <androidx.core.widget.ContentLoadingProgressBar
-            style="?android:attr/progressBarStyle"
-            android:id="@+id/main_progressbar"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center"
-            android:indeterminate="true"/>
-
-        <TextView
-            android:id="@+id/main_noresult"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center"
-            android:text="@string/main_no_result"
-            android:visibility="invisible"/>
-
-        <com.qtalk.recyclerviewfastscroller.RecyclerViewFastScroller
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            app:handleDrawable="@drawable/thumb"
-            app:handleHasFixedSize="true"
-            app:handleHeight="72dp"
-            app:handleWidth="24dp"
-            app:trackMarginStart="64dp"
-            app:addLastItemPadding="true"
-            app:popupDrawable="@color/transparent">
-
-            <androidx.recyclerview.widget.RecyclerView
-                android:id="@+id/main_recyclerview"
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:paddingTop="64dp"
-                android:clipToPadding="false"
-                app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"/>
-
-        </com.qtalk.recyclerviewfastscroller.RecyclerViewFastScroller>
-
-        <com.github.clans.fab.FloatingActionMenu
-                android:id="@+id/main_fab"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_gravity="bottom|end"
-                android:layout_margin="16dp"
-                app:menu_colorNormal="@color/colorAccent">
-
-            <com.github.clans.fab.FloatingActionButton
-                android:id="@+id/main_fab_cancel"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                app:fab_label="@string/main_fab_cancel"
-                app:fab_size="mini"/>
-
-            <com.github.clans.fab.FloatingActionButton
-                android:id="@+id/main_fab_jump"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                app:fab_label="@string/main_jump_title"
-                app:fab_size="mini"/>
-
-            <com.github.clans.fab.FloatingActionButton
-                android:id="@+id/main_fab_random"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                app:fab_label="@string/main_fab_random"
-                app:fab_size="mini"/>
-
-            <com.github.clans.fab.FloatingActionButton
-                android:id="@+id/main_fab_id"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                app:fab_label="@string/main_open_gallery_by_id"
-                app:fab_size="mini"/>
-
-        </com.github.clans.fab.FloatingActionMenu>
-
-    </androidx.coordinatorlayout.widget.CoordinatorLayout>
-
-    <com.arlib.floatingsearchview.FloatingSearchViewDayNight
-        android:id="@+id/main_searchview"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        app:floatingSearch_backgroundColor="?android:attr/colorBackgroundFloating"
-        app:floatingSearch_leftActionColor="?attr/colorControlNormal"
-        app:floatingSearch_menuItemIconColor="?attr/colorControlNormal"
-        app:floatingSearch_actionMenuOverflowColor="?attr/colorControlNormal"
-        app:floatingSearch_clearBtnColor="?attr/colorControlNormal"
-        app:floatingSearch_viewTextColor="?android:attr/textColorPrimary"
-        app:floatingSearch_suggestionRightIconColor="@color/material_orange_500"
-        app:floatingSearch_searchBarMarginLeft="8dp"
-        app:floatingSearch_searchBarMarginRight="8dp"
-        app:floatingSearch_searchBarMarginTop="8dp"
-        app:floatingSearch_searchHint="@string/search_hint"
-        app:floatingSearch_suggestionsListAnimDuration="250"
-        app:floatingSearch_showSearchKey="true"
-        app:floatingSearch_leftActionMode="showHamburger"
-        app:floatingSearch_menu="@menu/main"
-        app:floatingSearch_dismissOnOutsideTouch="true"
-        app:floatingSearch_close_search_on_keyboard_dismiss="true"
-        tools:ignore="NewApi" />
-
-</RelativeLayout>
--- a/app/src/main/res/layout/activity_main_content.xml
+++ b/app/src/main/res/layout/activity_main_content.xml
@@ -1,144 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~     Pupil, Hitomi.la viewer for Android
-  ~     Copyright (C) 2019  tom5079
-  ~
-  ~     This program is free software: you can redistribute it and/or modify
-  ~     it under the terms of the GNU General Public License as published by
-  ~     the Free Software Foundation, either version 3 of the License, or
-  ~     (at your option) any later version.
-  ~
-  ~     This program is distributed in the hope that it will be useful,
-  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
-  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  ~     GNU General Public License for more details.
-  ~
-  ~     You should have received a copy of the GNU General Public License
-  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
-  -->
-
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".ui.MainActivity">
-
-    <androidx.coordinatorlayout.widget.CoordinatorLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent">
-
-        <com.google.android.material.appbar.AppBarLayout
-            android:id="@+id/main_appbar_layout"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:background="@color/transparent"
-            android:visibility="invisible"
-            app:layout_constraintTop_toTopOf="parent"
-            app:layout_constraintLeft_toLeftOf="parent">
-
-            <View
-                android:layout_width="match_parent"
-                android:layout_height="64dp"
-                android:visibility="invisible"
-                android:background="@color/transparent"
-                app:layout_scrollFlags="scroll|enterAlways"
-                app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
-
-        </com.google.android.material.appbar.AppBarLayout>
-
-        <androidx.core.widget.ContentLoadingProgressBar
-            style="?android:attr/progressBarStyle"
-            android:id="@+id/main_progressbar"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center"
-            android:indeterminate="true"/>
-
-        <TextView
-            android:id="@+id/main_noresult"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center"
-            android:text="@string/main_no_result"
-            android:visibility="invisible"/>
-
-        <com.qtalk.recyclerviewfastscroller.RecyclerViewFastScroller
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            app:handleDrawable="@drawable/thumb"
-            app:handleHasFixedSize="true"
-            app:handleHeight="72dp"
-            app:handleWidth="24dp"
-            app:trackMarginStart="64dp"
-            app:addLastItemPadding="true"
-            app:popupDrawable="@color/transparent">
-
-            <androidx.recyclerview.widget.RecyclerView
-                android:id="@+id/main_recyclerview"
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:paddingTop="64dp"
-                android:clipToPadding="false"
-                app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"/>
-
-        </com.qtalk.recyclerviewfastscroller.RecyclerViewFastScroller>
-
-        <com.github.clans.fab.FloatingActionMenu
-                android:id="@+id/main_fab"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_gravity="bottom|end"
-                android:layout_margin="16dp"
-                app:menu_colorNormal="@color/colorAccent">
-
-            <com.github.clans.fab.FloatingActionButton
-                android:id="@+id/main_fab_cancel"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                app:fab_label="@string/main_fab_cancel"
-                app:fab_size="mini"/>
-
-            <com.github.clans.fab.FloatingActionButton
-                android:id="@+id/main_fab_jump"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                app:fab_label="@string/main_jump_title"
-                app:fab_size="mini"/>
-
-            <com.github.clans.fab.FloatingActionButton
-                android:id="@+id/main_fab_random"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                app:fab_label="@string/main_fab_random"
-                app:fab_size="mini"/>
-
-            <com.github.clans.fab.FloatingActionButton
-                android:id="@+id/main_fab_id"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                app:fab_label="@string/main_open_gallery_by_id"
-                app:fab_size="mini"/>
-
-        </com.github.clans.fab.FloatingActionMenu>
-
-    </androidx.coordinatorlayout.widget.CoordinatorLayout>
-
-    <com.arlib.floatingsearchview.FloatingSearchViewDayNight
-        android:id="@+id/main_searchview"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        app:floatingSearch_suggestionRightIconColor="@color/material_orange_500"
-        app:floatingSearch_searchBarMarginLeft="8dp"
-        app:floatingSearch_searchBarMarginRight="8dp"
-        app:floatingSearch_searchBarMarginTop="8dp"
-        app:floatingSearch_searchHint="@string/search_hint"
-        app:floatingSearch_suggestionsListAnimDuration="250"
-        app:floatingSearch_showSearchKey="true"
-        app:floatingSearch_leftActionMode="showHamburger"
-        app:floatingSearch_menu="@menu/main"
-        app:floatingSearch_dismissOnOutsideTouch="true"
-        app:floatingSearch_close_search_on_keyboard_dismiss="true"
-        tools:ignore="NewApi" />
-
-</RelativeLayout>
--- a/app/src/main/res/layout/default_query_dialog.xml
+++ b/app/src/main/res/layout/default_query_dialog.xml
@@ -28,7 +28,7 @@
        tools:ignore="Autofill"
        android:inputType="text"
        android:hint="@string/settings_default_query"
-        android:id="@+id/default_query_dialog_edittext"
+        android:id="@+id/edittext"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        app:layout_constraintTop_toTopOf="parent"
@@ -36,10 +36,10 @@
        app:layout_constraintEnd_toEndOf="parent"/>

    <LinearLayout
-        android:id="@+id/default_query_dialog_language_layout"
+        android:id="@+id/language_layout"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
-        app:layout_constraintTop_toBottomOf="@id/default_query_dialog_edittext"
+        app:layout_constraintTop_toBottomOf="@id/edittext"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent">

@@ -49,14 +49,14 @@
            android:text="@string/default_query_dialog_language"/>

        <Spinner
-            android:id="@+id/default_query_dialog_language_selector"
+            android:id="@+id/language_selector"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"/>

    </LinearLayout>

    <LinearLayout
-        android:id="@+id/default_query_dialog_BL_layout"
+        android:id="@+id/BL_layout"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
@@ -64,7 +64,7 @@
        android:paddingStart="0dp"
        android:paddingEnd="8dp"
        android:paddingRight="8dp"
-        app:layout_constraintTop_toBottomOf="@id/default_query_dialog_language_layout"
+        app:layout_constraintTop_toBottomOf="@id/language_layout"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent">

@@ -75,14 +75,14 @@
            android:text="@string/default_query_dialog_filter_BL"/>

        <CheckBox
-            android:id="@+id/default_query_dialog_BL_checkbox"
+            android:id="@+id/BL_checkbox"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

    </LinearLayout>

    <LinearLayout
-        android:id="@+id/default_query_dialog_guro_layout"
+        android:id="@+id/guro_layout"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
@@ -90,7 +90,7 @@
        android:paddingStart="0dp"
        android:paddingEnd="8dp"
        android:paddingRight="8dp"
-        app:layout_constraintTop_toBottomOf="@id/default_query_dialog_BL_layout"
+        app:layout_constraintTop_toBottomOf="@id/BL_layout"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent">

@@ -101,7 +101,7 @@
            android:text="@string/default_query_dialog_filter_guro"/>

        <CheckBox
-            android:id="@+id/default_query_dialog_guro_checkbox"
+            android:id="@+id/guro_checkbox"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

@@ -115,7 +115,7 @@
        android:paddingStart="0dp"
        android:paddingEnd="8dp"
        android:paddingRight="8dp"
-        app:layout_constraintTop_toBottomOf="@id/default_query_dialog_guro_layout"
+        app:layout_constraintTop_toBottomOf="@id/guro_layout"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent">

@@ -126,7 +126,7 @@
            android:text="@string/default_query_dialog_filter_loli"/>

        <CheckBox
-            android:id="@+id/default_query_dialog_loli_checkbox"
+            android:id="@+id/loli_checkbox"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

--- a/app/src/main/res/layout/download_folder_name_dialog.xml
+++ b/app/src/main/res/layout/download_folder_name_dialog.xml
--- a/app/src/main/res/layout/download_location_dialog.xml
+++ b/app/src/main/res/layout/download_location_dialog.xml
--- a/app/src/main/res/layout/download_location_item.xml
+++ b/app/src/main/res/layout/download_location_item.xml
--- a/app/src/main/res/layout/gallery_dialog.xml
+++ b/app/src/main/res/layout/gallery_dialog.xml
@@ -19,14 +19,13 @@

 <androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/gallery_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:orientation="vertical">

    <com.google.android.material.appbar.AppBarLayout
-        android:id="@+id/gallery_toolbar"
+        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

@@ -40,35 +39,35 @@
                android:layout_height="wrap_content"
                android:padding="8dp">

-                <ImageView
-                    android:id="@+id/gallery_cover"
+                <com.github.piasy.biv.view.BigImageView
+                    android:id="@+id/cover"
                    android:layout_width="150dp"
                    android:layout_height="wrap_content"
                    android:adjustViewBounds="true"
                    app:layout_constraintTop_toTopOf="parent"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintLeft_toLeftOf="parent"
-                    app:layout_constraintRight_toLeftOf="@id/gallery_title"
+                    app:layout_constraintRight_toLeftOf="@id/title"
                    tools:ignore="ContentDescription" />

                <TextView
-                    android:id="@+id/gallery_title"
+                    android:id="@+id/title"
                    style="@style/TextAppearance.AppCompat.Headline"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    app:layout_constraintTop_toTopOf="parent"
-                    app:layout_constraintLeft_toRightOf="@id/gallery_cover"
+                    app:layout_constraintLeft_toRightOf="@id/cover"
                    app:layout_constraintRight_toRightOf="parent"
                    android:layout_marginLeft="8dp"
                    android:layout_marginStart="8dp"/>

                <TextView
                    style="@style/TextAppearance.AppCompat.Medium"
-                    android:id="@+id/gallery_artist"
+                    android:id="@+id/artist"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
-                    app:layout_constraintTop_toBottomOf="@id/gallery_title"
-                    app:layout_constraintLeft_toRightOf="@id/gallery_cover"
+                    app:layout_constraintTop_toBottomOf="@id/title"
+                    app:layout_constraintLeft_toRightOf="@id/cover"
                    app:layout_constraintRight_toRightOf="parent"
                    android:layout_marginLeft="8dp"
                    android:layout_marginStart="8dp"/>
@@ -76,15 +75,15 @@
                <View
                    android:layout_width="match_parent"
                    android:layout_height="0dp"
-                    app:layout_constraintTop_toBottomOf="@id/gallery_artist"
-                    app:layout_constraintBottom_toTopOf="@id/gallery_type"/>
+                    app:layout_constraintTop_toBottomOf="@id/artist"
+                    app:layout_constraintBottom_toTopOf="@id/type"/>

                <com.google.android.material.chip.Chip
-                    android:id="@+id/gallery_type"
+                    android:id="@+id/type"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    app:layout_constraintBottom_toBottomOf="parent"
-                    app:layout_constraintLeft_toRightOf="@id/gallery_cover"
+                    app:layout_constraintLeft_toRightOf="@id/cover"
                    android:layout_marginLeft="8dp"
                    android:layout_marginStart="8dp"/>

@@ -100,7 +99,7 @@
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

        <LinearLayout
-            android:id="@+id/gallery_contents"
+            android:id="@+id/contents"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"/>
@@ -112,7 +111,7 @@
        android:layout_height="match_parent">

        <ProgressBar
-            android:id="@+id/gallery_progressbar"
+            android:id="@+id/progressbar"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:layout_constraintLeft_toLeftOf="parent"
@@ -123,11 +122,11 @@
    </androidx.constraintlayout.widget.ConstraintLayout>

    <com.google.android.material.floatingactionbutton.FloatingActionButton
-        android:id="@+id/gallery_fab"
+        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="16dp"
-        app:layout_anchor="@id/gallery_toolbar"
+        app:layout_anchor="@id/toolbar"
        app:layout_anchorGravity="bottom|end"/>

 </androidx.coordinatorlayout.widget.CoordinatorLayout>
--- a/app/src/main/res/layout/gallery_dialog_details.xml
+++ b/app/src/main/res/layout/gallery_dialog_details.xml
@@ -25,14 +25,14 @@
    android:padding="8dp">

    <TextView
-        android:id="@+id/gallery_details"
+        android:id="@+id/type"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        style="@style/TextAppearance.MaterialComponents.Body1"
        android:textColor="@color/colorAccent"/>

    <LinearLayout
-        android:id="@+id/gallery_details_contents"
+        android:id="@+id/contents"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"/>
--- a/app/src/main/res/layout/gallery_dialog_dotindicator.xml
+++ b/app/src/main/res/layout/gallery_dialog_dotindicator.xml
@@ -25,7 +25,7 @@
    android:layout_margin="8dp">

    <com.tbuonomo.viewpagerdotsindicator.DotsIndicator
-        android:id="@+id/gallery_dotindicator"
+        android:id="@+id/dotindicator"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
--- a/app/src/main/res/layout/item_gallery_details.xml
+++ b/app/src/main/res/layout/item_gallery_details.xml
@@ -26,13 +26,13 @@

    <TextView
        style="@style/TextAppearance.MaterialComponents.Body2"
-        android:id="@+id/gallery_details_type"
+        android:id="@+id/type"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingBottom="8dp"/>

    <com.google.android.material.chip.ChipGroup
-        android:id="@+id/gallery_details_tags"
+        android:id="@+id/tags"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:chipSpacingVertical="4dp"/>
--- a/app/src/main/res/layout/galleryblock_item.xml
+++ b/app/src/main/res/layout/galleryblock_item.xml
@@ -0,0 +1,160 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<xyz.quaver.pupil.ui.view.ProgressCard
+	xmlns:android="http://schemas.android.com/apk/res/android"
+	xmlns:app="http://schemas.android.com/apk/res-auto"
+	xmlns:tools="http://schemas.android.com/tools"
+	android:id="@+id/galleryblock_card"
+	android:layout_width="match_parent"
+	android:layout_height="wrap_content"
+	android:clipChildren="true"
+	app:cardCornerRadius="4dp"
+	android:layout_marginLeft="8dp"
+	android:layout_marginRight="8dp"
+	app:cardUseCompatPadding="true"
+	tools:ignore="RtlHardcoded">
+
+	<androidx.constraintlayout.widget.ConstraintLayout
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content">
+
+		<com.github.piasy.biv.view.BigImageView
+			android:id="@+id/galleryblock_thumbnail"
+			android:layout_width="150dp"
+			android:layout_height="0dp"
+			android:contentDescription="@string/galleryblock_thumbnail_description"
+			android:adjustViewBounds="true"
+			android:clickable="false"
+			app:layout_constraintHeight_default="spread"
+			app:layout_constraintHeight_min="200dp"
+			app:layout_constraintLeft_toLeftOf="parent"
+			app:layout_constraintTop_toTopOf="parent"
+			app:layout_constraintBottom_toTopOf="@id/barrier"/>
+
+		<TextView
+			style="@style/TextAppearance.AppCompat.Headline"
+			android:id="@+id/galleryblock_title"
+			android:layout_width="0dp"
+			android:layout_height="wrap_content"
+			android:layout_marginTop="8dp"
+			android:layout_marginLeft="8dp"
+			app:layout_constraintLeft_toRightOf="@id/galleryblock_thumbnail"
+			app:layout_constraintRight_toRightOf="parent"
+			app:layout_constraintTop_toTopOf="parent" />
+
+		<TextView
+			style="@style/TextAppearance.AppCompat.Medium"
+			android:id="@+id/galleryblock_artist"
+			android:layout_width="0dp"
+			android:layout_height="wrap_content"
+			android:layout_marginLeft="8dp"
+			app:layout_constraintLeft_toRightOf="@id/galleryblock_thumbnail"
+			app:layout_constraintRight_toRightOf="parent"
+			app:layout_constraintTop_toBottomOf="@id/galleryblock_title" />
+
+		<TextView
+			android:id="@+id/galleryblock_series"
+			android:layout_width="0dp"
+			android:layout_height="wrap_content"
+			android:layout_marginLeft="8dp"
+			app:layout_constraintTop_toBottomOf="@id/galleryblock_artist"
+			app:layout_constraintLeft_toRightOf="@id/galleryblock_thumbnail"
+			app:layout_constraintRight_toRightOf="parent"/>
+
+		<TextView
+			android:id="@+id/galleryblock_type"
+			android:layout_width="wrap_content"
+			android:layout_height="wrap_content"
+			android:layout_marginLeft="8dp"
+			app:layout_constraintTop_toBottomOf="@id/galleryblock_series"
+			app:layout_constraintLeft_toRightOf="@id/galleryblock_thumbnail" />
+
+		<TextView
+			android:id="@+id/galleryblock_language"
+			android:layout_width="wrap_content"
+			android:layout_height="wrap_content"
+			android:layout_marginLeft="8dp"
+			android:layout_marginBottom="8dp"
+			app:layout_constraintTop_toBottomOf="@id/galleryblock_type"
+			app:layout_constraintLeft_toRightOf="@id/galleryblock_thumbnail" />
+
+		<xyz.quaver.pupil.ui.view.TagChipGroup
+			android:id="@+id/galleryblock_tag_group"
+			android:layout_width="0dp"
+			android:layout_height="wrap_content"
+			android:layout_marginLeft="8dp"
+			android:layout_marginTop="16dp"
+			android:layout_marginBottom="16dp"
+			app:chipSpacing="4dp"
+			app:layout_constraintTop_toBottomOf="@id/galleryblock_language"
+			app:layout_constraintLeft_toRightOf="@id/galleryblock_thumbnail"
+			app:layout_constraintRight_toRightOf="parent"/>
+
+		<androidx.constraintlayout.widget.Barrier
+			android:id="@+id/barrier"
+			android:layout_width="wrap_content"
+			android:layout_height="wrap_content"
+			app:barrierDirection="bottom"
+			app:constraint_referenced_ids="galleryblock_thumbnail, galleryblock_tag_group"/>
+
+		<View
+			android:id="@+id/divider"
+			android:layout_width="match_parent"
+			android:layout_height="1dp"
+			android:background="?android:attr/listDivider"
+			app:layout_constraintTop_toBottomOf="@id/barrier"
+			android:layout_margin="8dp"/>
+
+		<TextView
+			android:id="@+id/galleryblock_id"
+			android:layout_width="wrap_content"
+			android:layout_height="wrap_content"
+			android:layout_margin="8dp"
+			app:layout_constraintTop_toBottomOf="@id/divider"
+			app:layout_constraintBottom_toBottomOf="parent"
+			app:layout_constraintLeft_toLeftOf="parent"/>
+
+		<TextView
+			android:id="@+id/galleryblock_pagecount"
+			android:layout_width="wrap_content"
+			android:layout_height="wrap_content"
+			android:layout_marginTop="8dp"
+			android:layout_marginBottom="8dp"
+			app:layout_constraintTop_toBottomOf="@id/divider"
+			app:layout_constraintBottom_toBottomOf="parent"
+			app:layout_constraintLeft_toLeftOf="parent"
+			app:layout_constraintRight_toRightOf="parent" />
+
+		<ImageView
+			android:id="@+id/galleryblock_favorite"
+			android:contentDescription="@string/app_name"
+			android:layout_width="32dp"
+			android:layout_height="32dp"
+			android:layout_marginRight="8dp"
+			android:layout_marginTop="8dp"
+			android:layout_marginBottom="8dp"
+			app:srcCompat="@drawable/ic_star_empty"
+			app:layout_constraintTop_toBottomOf="@id/divider"
+			app:layout_constraintBottom_toBottomOf="parent"
+			app:layout_constraintRight_toRightOf="parent" />
+
+	</androidx.constraintlayout.widget.ConstraintLayout>
+
+</xyz.quaver.pupil.ui.view.ProgressCard>
--- a/app/src/main/res/layout/item_galleryblock.xml
+++ b/app/src/main/res/layout/item_galleryblock.xml
@@ -1,239 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~     Pupil, Hitomi.la viewer for Android
-  ~     Copyright (C) 2019  tom5079
-  ~
-  ~     This program is free software: you can redistribute it and/or modify
-  ~     it under the terms of the GNU General Public License as published by
-  ~     the Free Software Foundation, either version 3 of the License, or
-  ~     (at your option) any later version.
-  ~
-  ~     This program is distributed in the hope that it will be useful,
-  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
-  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  ~     GNU General Public License for more details.
-  ~
-  ~     You should have received a copy of the GNU General Public License
-  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
-  -->
-
-<androidx.cardview.widget.CardView
-	xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	xmlns:tools="http://schemas.android.com/tools"
-	android:layout_width="match_parent"
-	android:layout_height="wrap_content"
-	android:layout_margin="8dp"
-	app:cardCornerRadius="8dp"
-	android:clipChildren="true">
-
-	<com.daimajia.swipe.SwipeLayout
-		android:id="@+id/galleryblock_swipe_layout"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		app:drag_edge="right"
-		app:show_mode="pull_out">
-
-		<LinearLayout
-            android:layout_width="wrap_content"
-			android:layout_height="match_parent">
-
-			<TextView
-				android:id="@+id/galleryblock_download"
-				android:layout_width="wrap_content"
-				android:layout_height="match_parent"
-				android:minWidth="70dp"
-				android:padding="8dp"
-				android:gravity="center"
-				android:background="@android:color/holo_blue_dark"
-				android:textColor="@android:color/white"
-				android:text="@string/main_download"
-				android:foreground="?attr/selectableItemBackground"
-				android:focusable="true"
-				android:clickable="true"
-				tools:ignore="UnusedAttribute" />
-
-			<TextView
-				android:id="@+id/galleryblock_delete"
-				android:layout_width="wrap_content"
-				android:layout_height="match_parent"
-				android:minWidth="70dp"
-				android:padding="8dp"
-				android:gravity="center"
-				android:background="@android:color/holo_red_dark"
-				android:textColor="@android:color/white"
-				android:text="@string/main_delete"
-				android:foreground="?attr/selectableItemBackground"
-				android:focusable="true"
-				android:clickable="true"
-				tools:ignore="UnusedAttribute" />
-
-		</LinearLayout>
-
-		<LinearLayout
-			android:id="@+id/galleryblock_primary"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:orientation="vertical"
-			android:foreground="?attr/selectableItemBackground"
-			android:focusable="true"
-			android:clickable="true"
-			tools:ignore="UnusedAttribute">
-
-			<androidx.constraintlayout.widget.ConstraintLayout
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content">
-
-				<ProgressBar
-					style="@style/Widget.AppCompat.ProgressBar.Horizontal"
-					android:id="@+id/galleryblock_progressbar"
-					android:layout_width="match_parent"
-					android:layout_height="4dp"
-					android:visibility="gone"
-					app:layout_constraintTop_toTopOf="parent"/>
-
-				<ImageView
-					android:id="@+id/galleryblock_progress_complete"
-					android:layout_width="match_parent"
-					android:layout_height="4dp"
-					android:visibility="invisible"
-					android:scaleType="fitXY"
-					android:contentDescription="@string/reader_imageview_description"
-					app:layout_constraintTop_toTopOf="parent"/>
-
-				<ImageView
-					android:id="@+id/galleryblock_thumbnail"
-					android:layout_width="150dp"
-					android:layout_height="wrap_content"
-					android:contentDescription="@string/galleryblock_thumbnail_description"
-					android:adjustViewBounds="true"
-					app:layout_constraintLeft_toLeftOf="parent"
-					app:layout_constraintTop_toBottomOf="@id/galleryblock_progressbar"
-					app:layout_constraintBottom_toBottomOf="parent"/>
-
-				<TextView
-					style="@style/TextAppearance.AppCompat.Headline"
-					android:id="@+id/galleryblock_title"
-					android:layout_width="0dp"
-					android:layout_height="wrap_content"
-					android:layout_marginTop="8dp"
-					android:layout_marginStart="8dp"
-					android:layout_marginLeft="8dp"
-					app:layout_constraintLeft_toRightOf="@id/galleryblock_thumbnail"
-					app:layout_constraintRight_toRightOf="parent"
-					app:layout_constraintTop_toTopOf="parent"/>
-
-				<TextView
-					style="@style/TextAppearance.AppCompat.Medium"
-					android:id="@+id/galleryblock_artist"
-					android:layout_width="0dp"
-					android:layout_height="wrap_content"
-					android:layout_marginStart="8dp"
-					android:layout_marginLeft="8dp"
-					app:layout_constraintLeft_toRightOf="@id/galleryblock_thumbnail"
-					app:layout_constraintRight_toRightOf="parent"
-					app:layout_constraintTop_toBottomOf="@id/galleryblock_title"/>
-
-				<TextView
-					android:id="@+id/galleryblock_series"
-					android:layout_width="0dp"
-					android:layout_height="wrap_content"
-					android:layout_marginStart="8dp"
-					android:layout_marginLeft="8dp"
-					app:layout_constraintTop_toBottomOf="@id/galleryblock_artist"
-					app:layout_constraintStart_toEndOf="@id/galleryblock_thumbnail"
-					app:layout_constraintEnd_toEndOf="parent"/>
-
-				<TextView
-					android:id="@+id/galleryblock_type"
-					android:layout_width="wrap_content"
-					android:layout_height="wrap_content"
-					android:layout_marginStart="8dp"
-					android:layout_marginLeft="8dp"
-					app:layout_constraintTop_toBottomOf="@id/galleryblock_series"
-					app:layout_constraintStart_toEndOf="@id/galleryblock_thumbnail" />
-
-				<TextView
-					android:id="@+id/galleryblock_language"
-					android:layout_width="wrap_content"
-					android:layout_height="wrap_content"
-					android:layout_marginStart="8dp"
-					android:layout_marginLeft="8dp"
-					android:layout_marginBottom="8dp"
-					app:layout_constraintTop_toBottomOf="@id/galleryblock_type"
-					app:layout_constraintBottom_toTopOf="@id/galleryblock_padding"
-					app:layout_constraintStart_toEndOf="@id/galleryblock_thumbnail" />
-
-				<View
-					android:id="@+id/galleryblock_padding"
-					android:layout_width="0dp"
-					android:layout_height="0dp"
-					app:layout_constraintEnd_toEndOf="parent"
-					app:layout_constraintTop_toBottomOf="@id/galleryblock_language"
-					app:layout_constraintBottom_toTopOf="@id/galleryblock_tag_group"/>
-
-				<com.google.android.material.chip.ChipGroup
-					android:id="@+id/galleryblock_tag_group"
-					android:layout_width="0dp"
-					android:layout_height="wrap_content"
-					android:layout_marginLeft="8dp"
-					android:layout_marginStart="8dp"
-					android:layout_marginTop="16dp"
-					android:layout_marginBottom="16dp"
-					app:chipSpacing="4dp"
-					app:layout_constraintTop_toBottomOf="@id/galleryblock_padding"
-					app:layout_constraintLeft_toRightOf="@id/galleryblock_thumbnail"
-					app:layout_constraintRight_toRightOf="parent"
-					app:layout_constraintBottom_toBottomOf="parent"/>
-
-			</androidx.constraintlayout.widget.ConstraintLayout>
-
-			<View
-				android:layout_width="match_parent"
-				android:layout_height="1dp"
-				android:layout_margin="8dp"
-				android:background="@android:color/darker_gray"/>
-
-			<LinearLayout
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:paddingLeft="8dp"
-				android:paddingRight="8dp"
-				android:paddingBottom="8dp"
-				android:orientation="horizontal"
-				android:gravity="center_vertical">
-
-				<TextView
-					android:id="@+id/galleryblock_id"
-					android:layout_width="wrap_content"
-					android:layout_height="wrap_content"/>
-
-				<View
-					android:layout_width="0dp"
-					android:layout_height="1dp"
-					android:layout_weight="1"/>
-
-				<TextView
-					android:id="@+id/galleryblock_pagecount"
-					android:layout_width="wrap_content"
-					android:layout_height="wrap_content"/>
-
-				<View
-					android:layout_width="0dp"
-					android:layout_height="1dp"
-					android:layout_weight="1"/>
-
-				<ImageView
-					android:id="@+id/galleryblock_favorite"
-					android:contentDescription="@string/app_name"
-					android:layout_width="32dp"
-					android:layout_height="32dp"
-					app:srcCompat="@drawable/ic_star_empty"/>
-
-			</LinearLayout>
-
-		</LinearLayout>
-
-	</com.daimajia.swipe.SwipeLayout>
-
-</androidx.cardview.widget.CardView>
--- a/app/src/main/res/layout/item_next.xml
+++ b/app/src/main/res/layout/item_next.xml
@@ -1,54 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~     Pupil, Hitomi.la viewer for Android
-  ~     Copyright (C) 2019  tom5079
-  ~
-  ~     This program is free software: you can redistribute it and/or modify
-  ~     it under the terms of the GNU General Public License as published by
-  ~     the Free Software Foundation, either version 3 of the License, or
-  ~     (at your option) any later version.
-  ~
-  ~     This program is distributed in the hope that it will be useful,
-  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
-  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  ~     GNU General Public License for more details.
-  ~
-  ~     You should have received a copy of the GNU General Public License
-  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
-  -->
-
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:orientation="horizontal"
-    android:gravity="center">
-
-    <View
-        android:layout_width="0dp"
-        android:layout_height="match_parent"
-        android:layout_weight="1"/>
-
-    <ImageView
-        android:id="@+id/icon_next"
-        android:contentDescription="@string/page_indicator_placeholder"
-        android:layout_width="0dp"
-        android:layout_height="match_parent"
-        android:layout_weight="1"
-        app:srcCompat="@drawable/ic_navigate_next_black_24dp"
-        app:tint="@color/colorAccent"
-        android:rotation="180"/>
-
-    <TextView
-        android:id="@+id/text_next"
-        android:layout_width="1dp"
-        android:layout_height="wrap_content"
-        android:maxLines="1"
-        android:ellipsize="end" />
-
-    <View
-        android:layout_width="0dp"
-        android:layout_height="match_parent"
-        android:layout_weight="1"/>
-
-</LinearLayout>
--- a/app/src/main/res/layout/item_prev.xml
+++ b/app/src/main/res/layout/item_prev.xml
@@ -1,54 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~     Pupil, Hitomi.la viewer for Android
-  ~     Copyright (C) 2019  tom5079
-  ~
-  ~     This program is free software: you can redistribute it and/or modify
-  ~     it under the terms of the GNU General Public License as published by
-  ~     the Free Software Foundation, either version 3 of the License, or
-  ~     (at your option) any later version.
-  ~
-  ~     This program is distributed in the hope that it will be useful,
-  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
-  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  ~     GNU General Public License for more details.
-  ~
-  ~     You should have received a copy of the GNU General Public License
-  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
-  -->
-
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:orientation="horizontal"
-    android:gravity="center">
-
-    <View
-        android:layout_width="0dp"
-        android:layout_height="match_parent"
-        android:layout_weight="1"/>
-
-    <ImageView
-        android:id="@+id/icon_prev"
-        android:contentDescription="@string/page_indicator_placeholder"
-        android:layout_width="0dp"
-        android:layout_height="match_parent"
-        android:layout_weight="1"
-        app:srcCompat="@drawable/ic_navigate_next_black_24dp"
-        app:tint="@color/colorAccent"
-        android:rotation="180"/>
-
-    <TextView
-        android:id="@+id/text_prev"
-        android:layout_width="1dp"
-        android:layout_height="wrap_content"
-        android:maxLines="1"
-        android:ellipsize="end" />
-
-    <View
-        android:layout_width="0dp"
-        android:layout_height="match_parent"
-        android:layout_weight="1"/>
-
-</LinearLayout>
--- a/Show More
+++ b/Show More