From 216914882c1e928b5de06e0db634f1697edca867 Mon Sep 17 00:00:00 2001
From: tom5079 <tom5079@naver.com>
Date: Sun, 23 Aug 2020 20:26:23 +0900
Subject: [PATCH] Separated libpupil to standalone repository Migrated to
 Kotlin 1.4

---
 .idea/codeStyles/Project.xml                  |  16 +++
 .idea/dictionaries/tom50.xml                  |   7 ++
 .idea/gradle.xml                              |   1 -
 app/build.gradle                              |  23 ++--
 app/proguard-rules.pro                        |   4 +-
 .../xyz/quaver/pupil/BroadcastReciever.kt     |   3 +-
 .../quaver/pupil/adapters/ReaderAdapter.kt    |   3 +-
 .../java/xyz/quaver/pupil/ui/MainActivity.kt  |  43 ++++---
 .../xyz/quaver/pupil/ui/ReaderActivity.kt     |   2 +-
 .../xyz/quaver/pupil/ui/SettingsActivity.kt   |  22 ++--
 .../pupil/ui/dialog/DownloadLocationDialog.kt |   6 +-
 .../quaver/pupil/ui/dialog/GalleryDialog.kt   |   7 +-
 .../xyz/quaver/pupil/ui/dialog/ProxyDialog.kt |   5 +-
 .../pupil/ui/fragment/SettingsFragment.kt     |  10 +-
 .../java/xyz/quaver/pupil/util/ConstValues.kt |  39 -------
 .../quaver/pupil/util/ItemClickSupport.java   | 107 ------------------
 .../xyz/quaver/pupil/util/ItemClickSupport.kt |  69 +++++++++++
 .../xyz/quaver/pupil/util/download/Cache.kt   |  38 ++-----
 .../pupil/util/download/DownloadWorker.kt     |   2 +-
 .../java/xyz/quaver/pupil/util/history.kt     |  15 +--
 .../main/java/xyz/quaver/pupil/util/lock.kt   |  10 +-
 .../main/java/xyz/quaver/pupil/util/misc.kt   |  10 +-
 .../main/java/xyz/quaver/pupil/util/proxy.kt  |   4 +-
 .../main/java/xyz/quaver/pupil/util/update.kt |  25 ++--
 app/src/main/res/drawable-hdpi/ic_expand.png  | Bin 197 -> 0 bytes
 .../main/res/drawable-hdpi/ic_placeholder.png | Bin 361 -> 0 bytes
 app/src/main/res/drawable-hdpi/ic_search.png  | Bin 470 -> 0 bytes
 app/src/main/res/drawable-mdpi/ic_expand.png  | Bin 145 -> 0 bytes
 .../main/res/drawable-mdpi/ic_placeholder.png | Bin 224 -> 0 bytes
 app/src/main/res/drawable-mdpi/ic_search.png  | Bin 236 -> 0 bytes
 app/src/main/res/drawable-xhdpi/ic_expand.png | Bin 226 -> 0 bytes
 .../res/drawable-xhdpi/ic_placeholder.png     | Bin 370 -> 0 bytes
 app/src/main/res/drawable-xhdpi/ic_search.png | Bin 416 -> 0 bytes
 .../main/res/drawable-xxhdpi/ic_expand.png    | Bin 294 -> 0 bytes
 .../res/drawable-xxhdpi/ic_placeholder.png    | Bin 602 -> 0 bytes
 .../main/res/drawable-xxhdpi/ic_search.png    | Bin 687 -> 0 bytes
 app/src/main/res/drawable/ic_export.xml       |   8 --
 .../ic_navigate_before_black_24dp.xml         |   9 --
 app/src/main/res/drawable/sort_variant.xml    |   8 --
 .../res/layout-v23/activity_main_content.xml  |   4 +-
 .../main/res/layout/activity_main_content.xml |   4 +-
 .../main/res/layout/dialog_default_query.xml  |   1 -
 app/src/main/res/layout/dialog_gallery.xml    |   5 +-
 .../res/layout/item_gallery_thumbnails.xml    |  23 ----
 app/src/main/res/layout/item_galleryblock.xml |  13 ++-
 app/src/main/res/layout/item_mirrors.xml      |   4 +-
 app/src/main/res/layout/item_progressbar.xml  |  28 -----
 app/src/main/res/menu/gallery.xml             |  35 ------
 app/src/main/res/menu/main.xml                |   4 +-
 app/src/main/res/values-ja/strings.xml        |  17 ---
 app/src/main/res/values-ko/strings.xml        |  17 ---
 app/src/main/res/values/arrays.xml            |  10 --
 app/src/main/res/values/colors.xml            |   1 -
 app/src/main/res/values/dimen.xml             |   8 --
 .../res/values/ic_launcher_background.xml     |   4 -
 app/src/main/res/values/ids.xml               |  11 ++
 app/src/main/res/values/strings.xml           |  27 -----
 build.gradle                                  |   1 -
 gradle.properties                             |   4 +-
 settings.gradle                               |   2 +-
 60 files changed, 233 insertions(+), 486 deletions(-)
 create mode 100644 .idea/dictionaries/tom50.xml
 delete mode 100644 app/src/main/java/xyz/quaver/pupil/util/ConstValues.kt
 delete mode 100644 app/src/main/java/xyz/quaver/pupil/util/ItemClickSupport.java
 create mode 100644 app/src/main/java/xyz/quaver/pupil/util/ItemClickSupport.kt
 delete mode 100644 app/src/main/res/drawable-hdpi/ic_expand.png
 delete mode 100644 app/src/main/res/drawable-hdpi/ic_placeholder.png
 delete mode 100644 app/src/main/res/drawable-hdpi/ic_search.png
 delete mode 100644 app/src/main/res/drawable-mdpi/ic_expand.png
 delete mode 100644 app/src/main/res/drawable-mdpi/ic_placeholder.png
 delete mode 100644 app/src/main/res/drawable-mdpi/ic_search.png
 delete mode 100644 app/src/main/res/drawable-xhdpi/ic_expand.png
 delete mode 100644 app/src/main/res/drawable-xhdpi/ic_placeholder.png
 delete mode 100644 app/src/main/res/drawable-xhdpi/ic_search.png
 delete mode 100644 app/src/main/res/drawable-xxhdpi/ic_expand.png
 delete mode 100644 app/src/main/res/drawable-xxhdpi/ic_placeholder.png
 delete mode 100644 app/src/main/res/drawable-xxhdpi/ic_search.png
 delete mode 100644 app/src/main/res/drawable/ic_export.xml
 delete mode 100644 app/src/main/res/drawable/ic_navigate_before_black_24dp.xml
 delete mode 100644 app/src/main/res/drawable/sort_variant.xml
 delete mode 100644 app/src/main/res/layout/item_gallery_thumbnails.xml
 delete mode 100644 app/src/main/res/layout/item_progressbar.xml
 delete mode 100644 app/src/main/res/menu/gallery.xml
 delete mode 100644 app/src/main/res/values/ic_launcher_background.xml

diff --git a/.idea/codeStyles/Project.xml b/.idea/codeStyles/Project.xml
index f41da1c9..585483f3 100644
--- a/.idea/codeStyles/Project.xml
+++ b/.idea/codeStyles/Project.xml
@@ -2,6 +2,22 @@
   <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">
diff --git a/.idea/dictionaries/tom50.xml b/.idea/dictionaries/tom50.xml
new file mode 100644
index 00000000..06b3df9f
--- /dev/null
+++ b/.idea/dictionaries/tom50.xml
@@ -0,0 +1,7 @@
+<component name="ProjectDictionaryState">
+  <dictionary name="tom50">
+    <words>
+      <w>hitomi</w>
+    </words>
+  </dictionary>
+</component>
\ No newline at end of file
diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index ab292d69..5cd135a0 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -11,7 +11,6 @@
           <set>
             <option value="$PROJECT_DIR$" />
             <option value="$PROJECT_DIR$/app" />
-            <option value="$PROJECT_DIR$/libpupil" />
           </set>
         </option>
         <option name="resolveModulePerSourceSet" value="false" />
diff --git a/app/build.gradle b/app/build.gradle
index 7eed9b62..2f077d0f 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -58,24 +58,23 @@ android {
 }
 
 dependencies {
-    def markwonVersion = '3.1.0'
-
     implementation fileTree(dir: 'libs', include: ['*.jar', '*.aar'])
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
-    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.7"
-    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.7"
-    implementation "org.jetbrains.kotlinx:kotlinx-serialization-runtime:0.20.0"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.9"
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.9"
+    implementation "org.jetbrains.kotlinx:kotlinx-serialization-core:1.0.0-RC"
     implementation 'androidx.appcompat:appcompat:1.2.0'
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
     implementation 'androidx.preference:preference:1.1.1'
     implementation 'androidx.gridlayout:gridlayout:1.0.0'
     implementation "androidx.biometric:biometric:1.0.1"
     implementation 'androidx.multidex:multidex:2.0.1'
+    implementation 'androidx.fragment:fragment-ktx:1.2.5'
     implementation "com.daimajia.swipelayout:library:1.2.0@aar"
     implementation 'com.google.android.material:material:1.3.0-alpha02'
-    implementation 'com.google.firebase:firebase-core:17.4.4'
-    implementation 'com.google.firebase:firebase-analytics:17.4.4'
-    implementation 'com.google.firebase:firebase-crashlytics:17.1.1'
+    implementation 'com.google.firebase:firebase-core:17.5.0'
+    implementation 'com.google.firebase:firebase-analytics:17.5.0'
+    implementation 'com.google.firebase:firebase-crashlytics:17.2.1'
     implementation 'com.google.firebase:firebase-perf:19.0.8'
     implementation 'com.github.arimorty:floatingsearchview:2.1.1'
     implementation 'com.github.clans:fab:1.6.4'
@@ -92,15 +91,15 @@ dependencies {
     implementation 'com.github.chrisbanes:PhotoView:2.3.0'
     implementation 'com.andrognito.patternlockview:patternlockview:1.0.0'
     //implementation 'com.andrognito.pinlockview:pinlockview:2.1.0'
-    implementation "ru.noties.markwon:core:${markwonVersion}"
+    implementation "ru.noties.markwon:core:3.1.0"
+    implementation 'xyz.quaver:libpupil:1.0'
     testImplementation 'junit:junit:4.13'
     androidTestImplementation 'androidx.test.ext:junit:1.1.1'
     androidTestImplementation 'androidx.test:rules:1.2.0'
     androidTestImplementation 'androidx.test:runner:1.2.0'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
-    implementation project(path: ':libpupil')
 }
 
 androidExtensions {
     experimental = true
-}
+}
\ No newline at end of file
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index e8fad16d..e6b5641d 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -40,9 +40,9 @@
 -keepattributes *Annotation*, InnerClasses
 -dontnote kotlinx.serialization.SerializationKt
 -keep,includedescriptorclasses class xyz.quaver.**$$serializer { *; } # <-- change package name to your app's
--keepclassmembers class xyz.quaver.** { # <-- change package name to your app's
+-keepclassmembers class xyz.quaver.pupil** { # <-- change package name to your app's
     *** Companion;
 }
--keepclasseswithmembers class xyz.quaver.** { # <-- change package name to your app's
+-keepclasseswithmembers class xyz.quaver.pupil** { # <-- change package name to your app's
     kotlinx.serialization.KSerializer serializer(...);
 }
\ No newline at end of file
diff --git a/app/src/main/java/xyz/quaver/pupil/BroadcastReciever.kt b/app/src/main/java/xyz/quaver/pupil/BroadcastReciever.kt
index 47b55176..9d21e062 100644
--- a/app/src/main/java/xyz/quaver/pupil/BroadcastReciever.kt
+++ b/app/src/main/java/xyz/quaver/pupil/BroadcastReciever.kt
@@ -29,7 +29,6 @@ import androidx.core.app.NotificationCompat
 import androidx.core.app.NotificationManagerCompat
 import androidx.core.content.FileProvider
 import androidx.preference.PreferenceManager
-import xyz.quaver.pupil.util.NOTIFICATION_ID_UPDATE
 import xyz.quaver.pupil.util.cancelImport
 import java.io.File
 
@@ -92,7 +91,7 @@ class BroadcastReciever : BroadcastReceiver() {
                     .setContentIntent(pendingIntent)
                     .build()
 
-                notificationManager.notify(NOTIFICATION_ID_UPDATE, notification)
+                notificationManager.notify(R.id.notification_id_update, notification)
             }
             ACTION_CANCEL_IMPORT -> {
                 cancelImport = true
diff --git a/app/src/main/java/xyz/quaver/pupil/adapters/ReaderAdapter.kt b/app/src/main/java/xyz/quaver/pupil/adapters/ReaderAdapter.kt
index 97157dda..7fe1d6fa 100644
--- a/app/src/main/java/xyz/quaver/pupil/adapters/ReaderAdapter.kt
+++ b/app/src/main/java/xyz/quaver/pupil/adapters/ReaderAdapter.kt
@@ -48,8 +48,7 @@ import kotlin.concurrent.schedule
 import kotlin.math.roundToInt
 
 class ReaderAdapter(private val glide: RequestManager,
-                    private val galleryID: Int,
-                    private val activity: Activity) : RecyclerView.Adapter<ReaderAdapter.ViewHolder>() {
+                    private val galleryID: Int) : RecyclerView.Adapter<ReaderAdapter.ViewHolder>() {
 
     var reader: Reader? = null
     val timer = Timer()
diff --git a/app/src/main/java/xyz/quaver/pupil/ui/MainActivity.kt b/app/src/main/java/xyz/quaver/pupil/ui/MainActivity.kt
index 992037a4..dcd9b1f7 100644
--- a/app/src/main/java/xyz/quaver/pupil/ui/MainActivity.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/MainActivity.kt
@@ -51,7 +51,9 @@ 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 kotlinx.serialization.builtins.list
+import kotlinx.serialization.decodeFromString
+import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.Json
 import xyz.quaver.hitomi.GalleryBlock
 import xyz.quaver.hitomi.doSearch
 import xyz.quaver.hitomi.getGalleryIDsFromNozomi
@@ -59,7 +61,6 @@ import xyz.quaver.hitomi.getSuggestionsForQuery
 import xyz.quaver.pupil.Pupil
 import xyz.quaver.pupil.R
 import xyz.quaver.pupil.adapters.GalleryBlockAdapter
-import xyz.quaver.pupil.types.Tag
 import xyz.quaver.pupil.types.TagSuggestion
 import xyz.quaver.pupil.types.Tags
 import xyz.quaver.pupil.ui.dialog.GalleryDialog
@@ -103,9 +104,6 @@ class MainActivity : AppCompatActivity() {
     private var mode = Mode.SEARCH
     private var sortMode = SortMode.NEWEST
 
-    private val REQUEST_SETTINGS = 45162
-    private val REQUEST_LOCK = 561
-
     private var galleryIDs: Deferred<List<Int>>? = null
     private var totalItems = 0
     private var loadingJob: Job? = null
@@ -132,7 +130,7 @@ class MainActivity : AppCompatActivity() {
         }
 
         if (lockManager.isNotEmpty())
-            startActivityForResult(Intent(this, LockActivity::class.java), REQUEST_LOCK)
+            startActivityForResult(Intent(this, LockActivity::class.java), R.id.request_lock.normalizeID())
 
         val preference = PreferenceManager.getDefaultSharedPreferences(this)
 
@@ -236,7 +234,7 @@ class MainActivity : AppCompatActivity() {
     override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
         super.onActivityResult(requestCode, resultCode, data)
         when(requestCode) {
-            REQUEST_SETTINGS -> {
+            R.id.request_settings -> {
                 runOnUiThread {
                     cancelFetch()
                     clearGalleries()
@@ -244,7 +242,7 @@ class MainActivity : AppCompatActivity() {
                     loadBlocks()
                 }
             }
-            REQUEST_LOCK -> {
+            R.id.request_lock -> {
                 if (resultCode != Activity.RESULT_OK)
                     finish()
             }
@@ -496,10 +494,10 @@ class MainActivity : AppCompatActivity() {
                     closeAllItems()
                 }
             }
-            ItemClickSupport.addTo(this)
-                .setOnItemClickListener { _, position, v ->
+            ItemClickSupport.addTo(this).apply {
+                onItemClickListener = listener@{ _, position, v ->
                     if (v !is CardView)
-                        return@setOnItemClickListener
+                        return@listener
 
                     val intent = Intent(this@MainActivity, ReaderActivity::class.java)
                     val gallery = galleries[position]
@@ -509,10 +507,11 @@ class MainActivity : AppCompatActivity() {
                     startActivity(intent)
 
                     histories.add(gallery.id)
-                }.setOnItemLongClickListener { _, position, v ->
+                }
 
+                onItemLongClickListener = listener@{ _, position, v ->
                     if (v !is CardView)
-                        return@setOnItemLongClickListener true
+                        return@listener false
 
                     val galleryID = galleries[position].id
 
@@ -537,6 +536,7 @@ class MainActivity : AppCompatActivity() {
 
                     true
                 }
+            }
 
             var origin = 0f
             var target = -1
@@ -766,11 +766,10 @@ class MainActivity : AppCompatActivity() {
 
         with(main_searchview as FloatingSearchViewDayNight) {
             val favoritesFile = File(ContextCompat.getDataDir(context), "favorites_tags.json")
-            val serializer = Tag.serializer().list
 
             if (!favoritesFile.exists()) {
                 favoritesFile.createNewFile()
-                favoritesFile.writeText(json.stringify(serializer, Tags(listOf())))
+                favoritesFile.writeText(Json.encodeToString(Tags(listOf())))
             }
 
             setOnLeftMenuClickListener(object: FloatingSearchView.OnLeftMenuClickListener {
@@ -785,7 +784,7 @@ class MainActivity : AppCompatActivity() {
 
             setOnMenuItemClickListener {
                 when(it.itemId) {
-                    R.id.main_menu_settings -> startActivityForResult(Intent(this@MainActivity, SettingsActivity::class.java), REQUEST_SETTINGS)
+                    R.id.main_menu_settings -> startActivityForResult(Intent(this@MainActivity, SettingsActivity::class.java), R.id.request_settings.normalizeID())
                     R.id.main_menu_thin -> {
                         main_recyclerview.apply {
                             (adapter as GalleryBlockAdapter).apply {
@@ -832,7 +831,7 @@ class MainActivity : AppCompatActivity() {
                 clearSuggestions()
 
                 if (query.isEmpty() or query.endsWith(' ')) {
-                    swapSuggestions(json.parse(serializer, favoritesFile.readText()).map {
+                    swapSuggestions(Json.decodeFromString<Tags>(favoritesFile.readText()).map {
                         TagSuggestion(it.tag, -1, "", it.area ?: "tag")
                     })
 
@@ -846,7 +845,7 @@ class MainActivity : AppCompatActivity() {
 
                     suggestions.filter {
                         val tag = "${it.n}:${it.s.replace(Regex("\\s"), "_")}"
-                        Tags(json.parse(serializer, favoritesFile.readText())).contains(tag)
+                        Tags(Json.decodeFromString(favoritesFile.readText())).contains(tag)
                     }.reversed().forEach {
                         suggestions.remove(it)
                         suggestions.add(0, it)
@@ -884,7 +883,7 @@ class MainActivity : AppCompatActivity() {
 
                 with(suggestionView.findViewById<ImageView>(R.id.right_icon)) {
 
-                    if (Tags(json.parse(serializer, favoritesFile.readText())).contains(tag))
+                    if (Tags(Json.decodeFromString(favoritesFile.readText())).contains(tag))
                         setImageResource(R.drawable.ic_star_filled)
                     else
                         setImageResource(R.drawable.ic_star_empty)
@@ -895,7 +894,7 @@ class MainActivity : AppCompatActivity() {
 
                     isClickable = true
                     setOnClickListener {
-                        val favorites = Tags(json.parse(serializer, favoritesFile.readText()))
+                        val favorites = Tags(Json.decodeFromString(favoritesFile.readText()))
 
                         if (favorites.contains(tag)) {
                             setImageResource(R.drawable.ic_star_empty)
@@ -910,7 +909,7 @@ class MainActivity : AppCompatActivity() {
                             favorites.add(tag)
                         }
 
-                        favoritesFile.writeText(json.stringify(serializer, favorites))
+                        favoritesFile.writeText(Json.encodeToString(favorites))
                     }
                 }
 
@@ -950,7 +949,7 @@ class MainActivity : AppCompatActivity() {
             setOnFocusChangeListener(object: FloatingSearchView.OnFocusChangeListener {
                 override fun onFocus() {
                     if (query.isEmpty() or query.endsWith(' '))
-                        swapSuggestions(json.parse(serializer, favoritesFile.readText()).map {
+                        swapSuggestions(Json.decodeFromString<Tags>( favoritesFile.readText()).map {
                             TagSuggestion(it.tag, -1, "", it.area ?: "tag")
                         })
                 }
diff --git a/app/src/main/java/xyz/quaver/pupil/ui/ReaderActivity.kt b/app/src/main/java/xyz/quaver/pupil/ui/ReaderActivity.kt
index 9abdb37c..0b579a81 100644
--- a/app/src/main/java/xyz/quaver/pupil/ui/ReaderActivity.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/ReaderActivity.kt
@@ -319,7 +319,7 @@ class ReaderActivity : AppCompatActivity() {
 
     private fun initView() {
         with(reader_recyclerview) {
-            adapter = ReaderAdapter(Glide.with(this@ReaderActivity), galleryID, this@ReaderActivity).apply {
+            adapter = ReaderAdapter(Glide.with(this@ReaderActivity), galleryID).apply {
                 onItemClickListener = {
                     if (isScroll) {
                         isScroll = false
diff --git a/app/src/main/java/xyz/quaver/pupil/ui/SettingsActivity.kt b/app/src/main/java/xyz/quaver/pupil/ui/SettingsActivity.kt
index 7bc79d66..44ebc1b3 100644
--- a/app/src/main/java/xyz/quaver/pupil/ui/SettingsActivity.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/SettingsActivity.kt
@@ -30,8 +30,8 @@ import androidx.appcompat.app.AppCompatActivity
 import androidx.preference.PreferenceManager
 import com.google.android.material.snackbar.Snackbar
 import kotlinx.android.synthetic.main.settings_activity.*
-import kotlinx.serialization.builtins.list
-import kotlinx.serialization.builtins.serializer
+import kotlinx.serialization.decodeFromString
+import kotlinx.serialization.json.Json
 import net.rdrei.android.dirchooser.DirectoryChooserActivity
 import xyz.quaver.pupil.Pupil
 import xyz.quaver.pupil.R
@@ -80,7 +80,7 @@ class SettingsActivity : AppCompatActivity() {
 
     override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
         when(requestCode) {
-            REQUEST_LOCK -> {
+            R.id.request_lock -> {
                 if (resultCode == Activity.RESULT_OK) {
                     supportFragmentManager
                         .beginTransaction()
@@ -89,7 +89,7 @@ class SettingsActivity : AppCompatActivity() {
                         .commitAllowingStateLoss()
                 }
             }
-            REQUEST_RESTORE -> {
+            R.id.request_restore -> {
                 if (resultCode == Activity.RESULT_OK) {
                     val uri = data?.data ?: return
 
@@ -100,7 +100,7 @@ class SettingsActivity : AppCompatActivity() {
                             inputStream.readBytes().toString(Charset.defaultCharset())
                         }
 
-                        (application as Pupil).favorites.addAll(json.parse(Int.serializer().list, str).also {
+                        (application as Pupil).favorites.addAll(Json.decodeFromString<List<Int>>(str).also {
                             Snackbar.make(
                                 window.decorView,
                                 getString(R.string.settings_restore_successful, it.size),
@@ -116,7 +116,7 @@ class SettingsActivity : AppCompatActivity() {
                     }
                 }
             }
-            REQUEST_DOWNLOAD_FOLDER -> {
+            R.id.request_download_folder -> {
                 if (resultCode == Activity.RESULT_OK) {
                     data?.data?.also { uri ->
                         val takeFlags: Int =
@@ -140,7 +140,7 @@ class SettingsActivity : AppCompatActivity() {
                     }
                 }
             }
-            REQUEST_DOWNLOAD_FOLDER_OLD -> {
+            R.id.request_download_folder_old -> {
                 if (resultCode == DirectoryChooserActivity.RESULT_CODE_DIR_SELECTED) {
                     val directory = data?.getStringExtra(DirectoryChooserActivity.RESULT_SELECTED_DIR)!!
 
@@ -156,7 +156,7 @@ class SettingsActivity : AppCompatActivity() {
                             .apply()
                 }
             }
-            REQUEST_IMPORT_OLD_GALLERIES -> {
+            R.id.request_import_old_galleries -> {
                 if (resultCode == Activity.RESULT_OK) {
                     data?.data?.also { uri ->
                         val takeFlags: Int =
@@ -178,7 +178,7 @@ class SettingsActivity : AppCompatActivity() {
                     }
                 }
             }
-            REQUEST_IMPORT_OLD_GALLERIES_OLD -> {
+            R.id.request_import_old_galleries_old -> {
                 if (resultCode == DirectoryChooserActivity.RESULT_CODE_DIR_SELECTED) {
                     val directory = data?.getStringExtra(DirectoryChooserActivity.RESULT_SELECTED_DIR)!!
 
@@ -200,13 +200,13 @@ class SettingsActivity : AppCompatActivity() {
     @SuppressLint("InlinedApi")
     override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
         when (requestCode) {
-            REQUEST_WRITE_PERMISSION_AND_SAF -> {
+            R.id.request_write_permission_and_saf -> {
                 if (grantResults.firstOrNull() == PackageManager.PERMISSION_GRANTED) {
                     val intent = Intent(Intent.ACTION_OPEN_DOCUMENT_TREE).apply {
                         putExtra("android.content.extra.SHOW_ADVANCED", true)
                     }
 
-                    startActivityForResult(intent, REQUEST_DOWNLOAD_FOLDER)
+                    startActivityForResult(intent, R.id.request_download_folder.normalizeID())
                 }
             }
         }
diff --git a/app/src/main/java/xyz/quaver/pupil/ui/dialog/DownloadLocationDialog.kt b/app/src/main/java/xyz/quaver/pupil/ui/dialog/DownloadLocationDialog.kt
index 3de0c7d7..c2e64dbe 100644
--- a/app/src/main/java/xyz/quaver/pupil/ui/dialog/DownloadLocationDialog.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/dialog/DownloadLocationDialog.kt
@@ -96,13 +96,13 @@ class DownloadLocationDialog(val activity: Activity) : AlertDialog(activity) {
                 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
 
                     if (ContextCompat.checkSelfPermission(context, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED)
-                        ActivityCompat.requestPermissions(activity, arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE), REQUEST_WRITE_PERMISSION_AND_SAF)
+                        ActivityCompat.requestPermissions(activity, arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE), R.id.request_write_permission_and_saf.normalizeID())
                     else {
                         val intent = Intent(Intent.ACTION_OPEN_DOCUMENT_TREE).apply {
                             putExtra("android.content.extra.SHOW_ADVANCED", true)
                         }
 
-                        activity.startActivityForResult(intent, REQUEST_DOWNLOAD_FOLDER)
+                        activity.startActivityForResult(intent, R.id.request_download_folder.normalizeID())
                     }
 
                     dismiss()
@@ -116,7 +116,7 @@ class DownloadLocationDialog(val activity: Activity) : AlertDialog(activity) {
                         putExtra(DirectoryChooserActivity.EXTRA_CONFIG, config)
                     }
 
-                    activity.startActivityForResult(intent, REQUEST_DOWNLOAD_FOLDER_OLD)
+                    activity.startActivityForResult(intent, R.id.request_download_folder_old.normalizeID())
                     dismiss()
                 }
             }
diff --git a/app/src/main/java/xyz/quaver/pupil/ui/dialog/GalleryDialog.kt b/app/src/main/java/xyz/quaver/pupil/ui/dialog/GalleryDialog.kt
index a272c37a..6f7f5775 100644
--- a/app/src/main/java/xyz/quaver/pupil/ui/dialog/GalleryDialog.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/dialog/GalleryDialog.kt
@@ -259,14 +259,14 @@ class GalleryDialog(context: Context, private val glide: RequestManager, private
                 layoutManager = LinearLayoutManager(context)
                 this.adapter = adapter
 
-                ItemClickSupport.addTo(this)
-                    .setOnItemClickListener { _, position, _ ->
+                ItemClickSupport.addTo(this).apply {
+                    onItemClickListener = { _, position, _ ->
                         context.startActivity(Intent(context, ReaderActivity::class.java).apply {
                             putExtra("galleryID", galleries[position].id)
                         })
                         (context.applicationContext as Pupil).histories.add(galleries[position].id)
                     }
-                    .setOnItemLongClickListener { _, position, _ ->
+                    onItemLongClickListener = { _, position, _ ->
                         GalleryDialog(
                             context,
                             glide,
@@ -279,6 +279,7 @@ class GalleryDialog(context: Context, private val glide: RequestManager, private
 
                         true
                     }
+                }
             }.let {
                 gallery_details_contents.addView(it, LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT))
             }
diff --git a/app/src/main/java/xyz/quaver/pupil/ui/dialog/ProxyDialog.kt b/app/src/main/java/xyz/quaver/pupil/ui/dialog/ProxyDialog.kt
index 68eb1e0a..0eccffc4 100644
--- a/app/src/main/java/xyz/quaver/pupil/ui/dialog/ProxyDialog.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/dialog/ProxyDialog.kt
@@ -29,11 +29,12 @@ import android.widget.AdapterView
 import android.widget.ArrayAdapter
 import androidx.preference.PreferenceManager
 import kotlinx.android.synthetic.main.dialog_proxy.view.*
+import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.Json
 import xyz.quaver.proxy
 import xyz.quaver.pupil.R
 import xyz.quaver.pupil.util.ProxyInfo
 import xyz.quaver.pupil.util.getProxyInfo
-import xyz.quaver.pupil.util.json
 import java.net.Proxy
 
 class ProxyDialog(context: Context) : Dialog(context) {
@@ -118,7 +119,7 @@ class ProxyDialog(context: Context) : Dialog(context) {
             ProxyInfo(type, addr, port, username, password).let {
 
                 PreferenceManager.getDefaultSharedPreferences(context).edit().putString("proxy",
-                    json.stringify(ProxyInfo.serializer(), it)
+                    Json.encodeToString(it)
                 ).apply()
 
                 proxy = it.proxy()
diff --git a/app/src/main/java/xyz/quaver/pupil/ui/fragment/SettingsFragment.kt b/app/src/main/java/xyz/quaver/pupil/ui/fragment/SettingsFragment.kt
index baca6f22..43cc4362 100644
--- a/app/src/main/java/xyz/quaver/pupil/ui/fragment/SettingsFragment.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/fragment/SettingsFragment.kt
@@ -168,7 +168,7 @@ class SettingsFragment :
                 }
                 "app_lock" -> {
                     val intent = Intent(requireContext(), LockActivity::class.java)
-                    activity?.startActivityForResult(intent, REQUEST_LOCK)
+                    activity?.startActivityForResult(intent, R.id.request_lock.normalizeID())
                 }
                 "mirrors" -> {
                     MirrorDialog(requireContext())
@@ -196,19 +196,19 @@ class SettingsFragment :
                         type = "*/*"
                     }
 
-                    activity?.startActivityForResult(intent, REQUEST_RESTORE)
+                    activity?.startActivityForResult(intent, R.id.request_restore.normalizeID())
                 }
                 "old_import_galleries" -> {
                     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
 
                         if (ContextCompat.checkSelfPermission(requireContext(), Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED)
-                            ActivityCompat.requestPermissions(requireActivity(), arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE), REQUEST_WRITE_PERMISSION_AND_SAF)
+                            ActivityCompat.requestPermissions(requireActivity(), arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE), R.id.request_write_permission_and_saf.normalizeID())
                         else {
                             val intent = Intent(Intent.ACTION_OPEN_DOCUMENT_TREE).apply {
                                 putExtra("android.content.extra.SHOW_ADVANCED", true)
                             }
 
-                            activity?.startActivityForResult(intent, REQUEST_IMPORT_OLD_GALLERIES)
+                            activity?.startActivityForResult(intent, R.id.request_import_old_galleries.normalizeID())
                         }
                     } else {    // Can't use SAF on old Androids!
                         val config = DirectoryChooserConfig.builder()
@@ -220,7 +220,7 @@ class SettingsFragment :
                             putExtra(DirectoryChooserActivity.EXTRA_CONFIG, config)
                         }
 
-                        activity?.startActivityForResult(intent, REQUEST_IMPORT_OLD_GALLERIES_OLD)
+                        activity?.startActivityForResult(intent, R.id.request_import_old_galleries_old.normalizeID())
                     }
                 }
                 "user_id" -> {
diff --git a/app/src/main/java/xyz/quaver/pupil/util/ConstValues.kt b/app/src/main/java/xyz/quaver/pupil/util/ConstValues.kt
deleted file mode 100644
index f1388871..00000000
--- a/app/src/main/java/xyz/quaver/pupil/util/ConstValues.kt
+++ /dev/null
@@ -1,39 +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
-
-import kotlinx.serialization.json.Json
-import kotlinx.serialization.json.JsonConfiguration
-import okhttp3.Dispatcher
-import okhttp3.OkHttpClient
-import xyz.quaver.proxy
-import java.util.concurrent.Executors
-import java.util.concurrent.TimeUnit
-
-const val REQUEST_LOCK = 38238
-const val REQUEST_RESTORE = 16546
-const val REQUEST_IMPORT_OLD_GALLERIES = 6458
-const val REQUEST_IMPORT_OLD_GALLERIES_OLD = 5946
-const val REQUEST_DOWNLOAD_FOLDER = 3874
-const val REQUEST_DOWNLOAD_FOLDER_OLD = 3425
-const val REQUEST_WRITE_PERMISSION_AND_SAF = 13900
-
-const val NOTIFICATION_ID_UPDATE = 2345
-
-val json = Json(JsonConfiguration.Stable)
\ No newline at end of file
diff --git a/app/src/main/java/xyz/quaver/pupil/util/ItemClickSupport.java b/app/src/main/java/xyz/quaver/pupil/util/ItemClickSupport.java
deleted file mode 100644
index 765ace41..00000000
--- a/app/src/main/java/xyz/quaver/pupil/util/ItemClickSupport.java
+++ /dev/null
@@ -1,107 +0,0 @@
-package xyz.quaver.pupil.util;
-
-import android.view.View;
-import androidx.annotation.NonNull;
-import androidx.recyclerview.widget.RecyclerView;
-import xyz.quaver.pupil.R;
-
-/*
-  Source: http://www.littlerobots.nl/blog/Handle-Android-RecyclerView-Clicks/
-  USAGE:
-
-  ItemClickSupport.addTo(mRecyclerView).setOnItemClickListener(new ItemClickSupport.OnItemClickListener() {
-      @Override
-      public void onItemClicked(RecyclerView recyclerView, int position, View v) {
-          // do it
-      }
-  });
-
-*/
-public class ItemClickSupport {
-    private final RecyclerView mRecyclerView;
-    private OnItemClickListener mOnItemClickListener;
-    private OnItemLongClickListener mOnItemLongClickListener;
-    private View.OnClickListener mOnClickListener = new View.OnClickListener() {
-        @Override
-        public void onClick(View v) {
-            if (mOnItemClickListener != null) {
-                RecyclerView.ViewHolder holder = mRecyclerView.getChildViewHolder(v);
-                mOnItemClickListener.onItemClicked(mRecyclerView, holder.getAdapterPosition(), v);
-            }
-        }
-    };
-    private View.OnLongClickListener mOnLongClickListener = new View.OnLongClickListener() {
-        @Override
-        public boolean onLongClick(View v) {
-            if (mOnItemLongClickListener != null) {
-                RecyclerView.ViewHolder holder = mRecyclerView.getChildViewHolder(v);
-                return mOnItemLongClickListener.onItemLongClicked(mRecyclerView, holder.getAdapterPosition(), v);
-            }
-            return false;
-        }
-    };
-    private RecyclerView.OnChildAttachStateChangeListener mAttachListener
-            = new RecyclerView.OnChildAttachStateChangeListener() {
-        @Override
-        public void onChildViewAttachedToWindow(@NonNull View view) {
-            if (mOnItemClickListener != null) {
-                view.setOnClickListener(mOnClickListener);
-            }
-            if (mOnItemLongClickListener != null) {
-                view.setOnLongClickListener(mOnLongClickListener);
-            }
-        }
-
-        @Override
-        public void onChildViewDetachedFromWindow(@NonNull View view) {
-
-        }
-    };
-
-    private ItemClickSupport(RecyclerView recyclerView) {
-        mRecyclerView = recyclerView;
-        mRecyclerView.setTag(R.id.item_click_support, this);
-        mRecyclerView.addOnChildAttachStateChangeListener(mAttachListener);
-    }
-
-    public static ItemClickSupport addTo(RecyclerView view) {
-        ItemClickSupport support = (ItemClickSupport) view.getTag(R.id.item_click_support);
-        if (support == null) {
-            support = new ItemClickSupport(view);
-        }
-        return support;
-    }
-
-    public static ItemClickSupport removeFrom(RecyclerView view) {
-        ItemClickSupport support = (ItemClickSupport) view.getTag(R.id.item_click_support);
-        if (support != null) {
-            support.detach(view);
-        }
-        return support;
-    }
-
-    public ItemClickSupport setOnItemClickListener(OnItemClickListener listener) {
-        mOnItemClickListener = listener;
-        return this;
-    }
-
-    public ItemClickSupport setOnItemLongClickListener(OnItemLongClickListener listener) {
-        mOnItemLongClickListener = listener;
-        return this;
-    }
-
-    private void detach(RecyclerView view) {
-        view.removeOnChildAttachStateChangeListener(mAttachListener);
-        view.setTag(R.id.item_click_support, null);
-    }
-
-    public interface OnItemClickListener {
-
-        void onItemClicked(RecyclerView recyclerView, int position, View v);
-    }
-
-    public interface OnItemLongClickListener {
-
-        boolean onItemLongClicked(RecyclerView recyclerView, int position, View v);
-    }
-}
\ No newline at end of file
diff --git a/app/src/main/java/xyz/quaver/pupil/util/ItemClickSupport.kt b/app/src/main/java/xyz/quaver/pupil/util/ItemClickSupport.kt
new file mode 100644
index 00000000..1b4ce3ba
--- /dev/null
+++ b/app/src/main/java/xyz/quaver/pupil/util/ItemClickSupport.kt
@@ -0,0 +1,69 @@
+/*
+ *     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 android.view.View
+import androidx.recyclerview.widget.RecyclerView
+import xyz.quaver.pupil.R
+
+class ItemClickSupport(private val recyclerView: RecyclerView) {
+
+    var onItemClickListener: ((RecyclerView, Int, View) -> Unit)? = null
+    var onItemLongClickListener: ((RecyclerView, Int, View) -> Boolean)? = null
+
+    init {
+        recyclerView.apply {
+            setTag(R.id.item_click_support, this)
+            addOnChildAttachStateChangeListener(object: RecyclerView.OnChildAttachStateChangeListener {
+                override fun onChildViewAttachedToWindow(view: View) {
+                    onItemClickListener?.let { listener ->
+                        view.setOnClickListener {
+                            recyclerView.getChildViewHolder(view).let { holder ->
+                                listener.invoke(recyclerView, holder.adapterPosition, view)
+                            }
+                        }
+                    }
+                    onItemLongClickListener?.let { listener ->
+                        view.setOnLongClickListener {
+                            recyclerView.getChildViewHolder(view).let { holder ->
+                                listener.invoke(recyclerView, holder.adapterPosition, view)
+                            }
+                        }
+                    }
+                }
+
+                override fun onChildViewDetachedFromWindow(view: View) {
+                    // Do Nothing
+                }
+            })
+        }
+    }
+
+    fun detach() {
+        recyclerView.apply {
+            clearOnChildAttachStateChangeListeners()
+            setTag(R.id.item_click_support, null)
+        }
+    }
+
+    companion object {
+        fun addTo(view: RecyclerView) = view.let { removeFrom(it); ItemClickSupport(it) }
+        fun removeFrom(view: RecyclerView) = (view.tag as? ItemClickSupport)?.detach()
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/xyz/quaver/pupil/util/download/Cache.kt b/app/src/main/java/xyz/quaver/pupil/util/download/Cache.kt
index 3b208f97..ff99c185 100644
--- a/app/src/main/java/xyz/quaver/pupil/util/download/Cache.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/download/Cache.kt
@@ -25,6 +25,10 @@ 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 okhttp3.Dispatcher
 import xyz.quaver.Code
 import xyz.quaver.hitomi.GalleryBlock
 import xyz.quaver.hitomi.Reader
@@ -32,15 +36,11 @@ import xyz.quaver.proxy
 import xyz.quaver.pupil.util.getCachedGallery
 import xyz.quaver.pupil.util.getDownloadDirectory
 import xyz.quaver.pupil.util.isParentOf
-import xyz.quaver.pupil.util.json
 import java.io.BufferedInputStream
 import java.io.File
 import java.io.FileOutputStream
 import java.io.InputStream
 import java.net.URL
-import java.util.*
-import java.util.concurrent.locks.Lock
-import java.util.concurrent.locks.ReentrantLock
 
 class Cache(context: Context) : ContextWrapper(context) {
 
@@ -49,20 +49,6 @@ class Cache(context: Context) : ContextWrapper(context) {
         private val readers = SparseArray<Reader?>()
     }
 
-    private val locks = SparseArray<Lock>()
-    private fun lock(galleryID: Int) {
-        synchronized(locks) {
-            if (locks.indexOfKey(galleryID) < 0)
-                locks.put(galleryID, ReentrantLock())
-        }
-
-        locks[galleryID].lock()
-    }
-
-    private fun unlock(galleryID: Int) {
-        locks[galleryID]?.unlock()
-    }
-
     private val preference = PreferenceManager.getDefaultSharedPreferences(this)
 
     // Search in this order
@@ -79,7 +65,7 @@ class Cache(context: Context) : ContextWrapper(context) {
             return null
 
         return try {
-            json.parse(Metadata.serializer(), file.readText())
+            Json.decodeFromString(file.readText())
         } catch (e: Exception) {
             //File corrupted
             file.delete()
@@ -96,7 +82,7 @@ class Cache(context: Context) : ContextWrapper(context) {
                 it.createNewFile()
         }
 
-        file.writeText(json.stringify(Metadata.serializer(), metadata))
+        file.writeText(Json.encodeToString(metadata))
     }
 
     suspend fun getThumbnail(galleryID: Int): String? {
@@ -134,7 +120,7 @@ class Cache(context: Context) : ContextWrapper(context) {
         )
 
         val galleryBlock = if (metadata?.galleryBlock == null) {
-            CoroutineScope(Dispatchers.IO).async {
+            withContext(Dispatchers.IO) {
                 var galleryBlock: GalleryBlock? = null
 
                 for (source in sources) {
@@ -149,7 +135,7 @@ class Cache(context: Context) : ContextWrapper(context) {
                 }
 
                 galleryBlock
-            }.await() ?: return null
+            } ?: return null
         }
         else
             metadata.galleryBlock
@@ -175,11 +161,9 @@ class Cache(context: Context) : ContextWrapper(context) {
             Code.HIYOBI to { xyz.quaver.hiyobi.getReader(galleryID) }
         ).let {
             if (mirrors.isNotEmpty())
-                it.toSortedMap(
-                    Comparator { o1, o2 ->
-                        mirrors.indexOf(o1.name) - mirrors.indexOf(o2.name)
-                    }
-                )
+                it.toSortedMap{ o1, o2 ->
+                    mirrors.indexOf(o1.name) - mirrors.indexOf(o2.name)
+                }
             else
                 it
         }
diff --git a/app/src/main/java/xyz/quaver/pupil/util/download/DownloadWorker.kt b/app/src/main/java/xyz/quaver/pupil/util/download/DownloadWorker.kt
index 6bb1f7ac..dead377a 100644
--- a/app/src/main/java/xyz/quaver/pupil/util/download/DownloadWorker.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/download/DownloadWorker.kt
@@ -151,7 +151,7 @@ class DownloadWorker private constructor(context: Context) : ContextWrapper(cont
             }).build()
     }
 
-    val client =
+    val client : OkHttpClient =
         OkHttpClient.Builder()
             .connectTimeout(0, TimeUnit.SECONDS)
             .addInterceptor(interceptor)
diff --git a/app/src/main/java/xyz/quaver/pupil/util/history.kt b/app/src/main/java/xyz/quaver/pupil/util/history.kt
index d50a970d..59fde684 100644
--- a/app/src/main/java/xyz/quaver/pupil/util/history.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/history.kt
@@ -18,15 +18,13 @@
 
 package xyz.quaver.pupil.util
 
-import kotlinx.serialization.KSerializer
-import kotlinx.serialization.builtins.list
-import kotlinx.serialization.builtins.serializer
+import kotlinx.serialization.decodeFromString
+import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.Json
 import java.io.File
 
 class Histories(private val file: File) : ArrayList<Int>() {
 
-    val serializer: KSerializer<List<Int>> = Int.serializer().list
-
     init {
         if (!file.exists())
             file.parentFile?.mkdirs()
@@ -42,16 +40,13 @@ class Histories(private val file: File) : ArrayList<Int>() {
         return apply {
             super.clear()
             super.addAll(
-                json.parse(
-                    serializer,
-                    file.bufferedReader().use { it.readText() }
-                )
+                Json.decodeFromString(file.bufferedReader().use { it.readText() })
             )
         }
     }
 
     fun save() {
-        file.writeText(json.stringify(serializer, this))
+        file.writeText(Json.encodeToString(toList()))
     }
 
     override fun add(element: Int): Boolean {
diff --git a/app/src/main/java/xyz/quaver/pupil/util/lock.kt b/app/src/main/java/xyz/quaver/pupil/util/lock.kt
index 44397450..cf5da4cb 100644
--- a/app/src/main/java/xyz/quaver/pupil/util/lock.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/lock.kt
@@ -22,7 +22,9 @@ import android.content.Context
 import android.content.ContextWrapper
 import androidx.core.content.ContextCompat
 import kotlinx.serialization.Serializable
-import kotlinx.serialization.builtins.list
+import kotlinx.serialization.decodeFromString
+import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.Json
 import java.io.File
 import java.security.MessageDigest
 
@@ -41,7 +43,7 @@ fun hashWithSalt(password: String): Pair<String, String> {
     return Pair(hash(password+salt), salt)
 }
 
-val source = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
+const val source = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
 
 @Serializable
 data class Lock(val type: Type, val hash: String, val salt: String) {
@@ -80,7 +82,7 @@ class LockManager(base: Context): ContextWrapper(base) {
             lock.writeText("[]")
         }
 
-        locks = ArrayList(json.parse(Lock.serializer().list, lock.readText()))
+        locks = Json.decodeFromString(lock.readText())
     }
 
     private fun save() {
@@ -89,7 +91,7 @@ class LockManager(base: Context): ContextWrapper(base) {
         if (!lock.exists())
             lock.createNewFile()
 
-        lock.writeText(json.stringify(Lock.serializer().list, locks?.toList() ?: listOf()))
+        lock.writeText(Json.encodeToString(locks?.toList() ?: listOf()))
     }
 
     fun add(lock: Lock) {
diff --git a/app/src/main/java/xyz/quaver/pupil/util/misc.kt b/app/src/main/java/xyz/quaver/pupil/util/misc.kt
index fafad368..ecbb908b 100644
--- a/app/src/main/java/xyz/quaver/pupil/util/misc.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/misc.kt
@@ -51,4 +51,12 @@ fun byteToString(byte: Long, precision : Int = 1) : String {
 
     return "%.${precision}f ${suffix[suffixIndex]}".format(size)
 
-}
\ No newline at end of file
+}
+
+/*
+ * Convert android generated ID to requestCode
+ * to prevent java.lang.IllegalArgumentException: Can only use lower 16 bits for requestCode
+ *
+ * https://stackoverflow.com/questions/38072322/generate-16-bit-unique-ids-in-android-for-startactivityforresult
+ */
+fun Int.normalizeID() = this.and(0xFFFF)
\ No newline at end of file
diff --git a/app/src/main/java/xyz/quaver/pupil/util/proxy.kt b/app/src/main/java/xyz/quaver/pupil/util/proxy.kt
index c471d992..b6dc406d 100644
--- a/app/src/main/java/xyz/quaver/pupil/util/proxy.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/proxy.kt
@@ -21,6 +21,8 @@ package xyz.quaver.pupil.util
 import android.content.Context
 import androidx.preference.PreferenceManager
 import kotlinx.serialization.Serializable
+import kotlinx.serialization.decodeFromString
+import kotlinx.serialization.json.Json
 import okhttp3.Authenticator
 import okhttp3.Credentials
 import java.net.InetSocketAddress
@@ -59,5 +61,5 @@ fun getProxyInfo(context: Context) =
         if (it == null)
             ProxyInfo(Proxy.Type.DIRECT)
         else
-            json.parse(ProxyInfo.serializer(), it)
+            Json.decodeFromString(it)
     }
\ No newline at end of file
diff --git a/app/src/main/java/xyz/quaver/pupil/util/update.kt b/app/src/main/java/xyz/quaver/pupil/util/update.kt
index 758357c9..14a56d92 100644
--- a/app/src/main/java/xyz/quaver/pupil/util/update.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/update.kt
@@ -30,10 +30,8 @@ import androidx.core.app.NotificationCompat
 import androidx.core.app.NotificationManagerCompat
 import androidx.preference.PreferenceManager
 import kotlinx.coroutines.*
-import kotlinx.serialization.json.JsonArray
-import kotlinx.serialization.json.JsonObject
-import kotlinx.serialization.json.boolean
-import kotlinx.serialization.json.content
+import kotlinx.serialization.decodeFromString
+import kotlinx.serialization.json.*
 import okhttp3.*
 import ru.noties.markwon.Markwon
 import xyz.quaver.hitomi.GalleryBlock
@@ -55,7 +53,7 @@ import java.util.concurrent.TimeUnit
 fun getReleases(url: String) : JsonArray {
     return try {
         URL(url).readText().let {
-            json.parse(JsonArray.serializer(), it)
+            Json.decodeFromString(it)
         }
     } catch (e: Exception) {
         JsonArray(emptyList())
@@ -72,9 +70,9 @@ fun checkUpdate(context: Context, url: String) : JsonObject? {
         if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean("beta", false))
             true
         else
-            it.jsonObject["prerelease"]?.boolean == false
+            it.jsonObject["prerelease"]?.jsonPrimitive?.booleanOrNull == false
     }?.let {
-        if (it.jsonObject["tag_name"]?.content == BuildConfig.VERSION_NAME)
+        if (it.jsonObject["tag_name"]?.jsonPrimitive?.contentOrNull == BuildConfig.VERSION_NAME)
             null
         else
             it.jsonObject
@@ -83,13 +81,12 @@ fun checkUpdate(context: Context, url: String) : JsonObject? {
 
 fun getApkUrl(releases: JsonObject) : String? {
     return releases["assets"]?.jsonArray?.firstOrNull {
-        Regex("Pupil-v.+\\.apk").matches(it.jsonObject["name"]?.content ?: "")
+        Regex("Pupil-v.+\\.apk").matches(it.jsonObject["name"]?.jsonPrimitive?.contentOrNull ?: "")
     }.let {
-        it?.jsonObject?.get("browser_download_url")?.content
+        it?.jsonObject?.get("browser_download_url")?.jsonPrimitive?.contentOrNull
     }
 }
 
-const val UPDATE_NOTIFICATION_ID = 384823
 fun checkUpdate(context: Context, force: Boolean = false) {
 
     val preferences = PreferenceManager.getDefaultSharedPreferences(context)
@@ -99,7 +96,7 @@ fun checkUpdate(context: Context, force: Boolean = false) {
         return
 
     fun extractReleaseNote(update: JsonObject, locale: Locale) : String {
-        val markdown = update["body"]!!.content
+        val markdown = update["body"]!!.jsonPrimitive.content
 
         val target = when(locale.language) {
             "ko" -> "한국어"
@@ -137,7 +134,7 @@ fun checkUpdate(context: Context, force: Boolean = false) {
             }
         }
 
-        return context.getString(R.string.update_release_note, update["tag_name"]?.content, result.toString())
+        return context.getString(R.string.update_release_note, update["tag_name"]?.jsonPrimitive?.contentOrNull, result.toString())
     }
 
     CoroutineScope(Dispatchers.Default).launch {
@@ -253,14 +250,14 @@ fun importOldGalleries(context: Context, folder: File) = CoroutineScope(Dispatch
 
         val reader = async {
             kotlin.runCatching {
-                json.parse(Reader.serializer(), File(gallery, "reader.json").readText())
+                Json.decodeFromString<Reader>(File(gallery, "reader.json").readText())
             }.getOrElse {
                 getReader(galleryID)
             }
         }
         val galleryBlock = async {
             kotlin.runCatching {
-                json.parse(GalleryBlock.serializer(), File(gallery, "galleryBlock.json").readText())
+                Json.decodeFromString<GalleryBlock>(File(gallery, "galleryBlock.json").readText())
             }.getOrElse {
                 getGalleryBlock(galleryID)
             }
diff --git a/app/src/main/res/drawable-hdpi/ic_expand.png b/app/src/main/res/drawable-hdpi/ic_expand.png
deleted file mode 100644
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diff --git a/app/src/main/res/drawable-xhdpi/ic_expand.png b/app/src/main/res/drawable-xhdpi/ic_expand.png
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diff --git a/app/src/main/res/drawable/ic_export.xml b/app/src/main/res/drawable/ic_export.xml
deleted file mode 100644
index 32d0ca69..00000000
--- a/app/src/main/res/drawable/ic_export.xml
+++ /dev/null
@@ -1,8 +0,0 @@
-<!-- drawable/export.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="M23,12L19,8V11H10V13H19V16M1,18V6C1,4.89 1.9,4 3,4H15A2,2 0 0,1 17,6V9H15V6H3V18H15V15H17V18A2,2 0 0,1 15,20H3A2,2 0 0,1 1,18Z" />
-</vector>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/ic_navigate_before_black_24dp.xml b/app/src/main/res/drawable/ic_navigate_before_black_24dp.xml
deleted file mode 100644
index e6bb3ca9..00000000
--- a/app/src/main/res/drawable/ic_navigate_before_black_24dp.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-        android:width="24dp"
-        android:height="24dp"
-        android:viewportWidth="24.0"
-        android:viewportHeight="24.0">
-    <path
-        android:fillColor="#FF000000"
-        android:pathData="M15.41,7.41L14,6l-6,6 6,6 1.41,-1.41L10.83,12z"/>
-</vector>
diff --git a/app/src/main/res/drawable/sort_variant.xml b/app/src/main/res/drawable/sort_variant.xml
deleted file mode 100644
index fdea2e49..00000000
--- a/app/src/main/res/drawable/sort_variant.xml
+++ /dev/null
@@ -1,8 +0,0 @@
-<!-- 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="#fff" android:pathData="M3,13H15V11H3M3,6V8H21V6M3,18H9V16H3V18Z" />
-</vector>
\ No newline at end of file
diff --git a/app/src/main/res/layout-v23/activity_main_content.xml b/app/src/main/res/layout-v23/activity_main_content.xml
index 63d1752d..ae65fe45 100644
--- a/app/src/main/res/layout-v23/activity_main_content.xml
+++ b/app/src/main/res/layout-v23/activity_main_content.xml
@@ -17,9 +17,7 @@
   ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
   -->
 
-<RelativeLayout
-    android:id="@+id/main_layout"
-    xmlns:android="http://schemas.android.com/apk/res/android"
+<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"
diff --git a/app/src/main/res/layout/activity_main_content.xml b/app/src/main/res/layout/activity_main_content.xml
index f2f65596..ef5c80b2 100644
--- a/app/src/main/res/layout/activity_main_content.xml
+++ b/app/src/main/res/layout/activity_main_content.xml
@@ -17,9 +17,7 @@
   ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
   -->
 
-<RelativeLayout
-    android:id="@+id/main_layout"
-    xmlns:android="http://schemas.android.com/apk/res/android"
+<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"
diff --git a/app/src/main/res/layout/dialog_default_query.xml b/app/src/main/res/layout/dialog_default_query.xml
index b98151e9..175438a4 100644
--- a/app/src/main/res/layout/dialog_default_query.xml
+++ b/app/src/main/res/layout/dialog_default_query.xml
@@ -108,7 +108,6 @@
     </LinearLayout>
 
     <LinearLayout
-        android:id="@+id/default_query_dialog_loli_layout"
         android:layout_width="0dp"
         android:layout_height="wrap_content"
         android:orientation="horizontal"
diff --git a/app/src/main/res/layout/dialog_gallery.xml b/app/src/main/res/layout/dialog_gallery.xml
index 793dac2c..e2d865fb 100644
--- a/app/src/main/res/layout/dialog_gallery.xml
+++ b/app/src/main/res/layout/dialog_gallery.xml
@@ -18,6 +18,7 @@
   -->
 
 <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"
@@ -47,7 +48,8 @@
                     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/gallery_title"
+                    tools:ignore="ContentDescription" />
 
                 <TextView
                     android:id="@+id/gallery_title"
@@ -72,7 +74,6 @@
                     android:layout_marginStart="8dp"/>
 
                 <View
-                    android:id="@+id/gallery_padding"
                     android:layout_width="match_parent"
                     android:layout_height="0dp"
                     app:layout_constraintTop_toBottomOf="@id/gallery_artist"
diff --git a/app/src/main/res/layout/item_gallery_thumbnails.xml b/app/src/main/res/layout/item_gallery_thumbnails.xml
deleted file mode 100644
index 2c97c88d..00000000
--- a/app/src/main/res/layout/item_gallery_thumbnails.xml
+++ /dev/null
@@ -1,23 +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/>.
-  -->
-
-<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:columnCount="3"/>
\ No newline at end of file
diff --git a/app/src/main/res/layout/item_galleryblock.xml b/app/src/main/res/layout/item_galleryblock.xml
index 5ba0e685..97548ccb 100644
--- a/app/src/main/res/layout/item_galleryblock.xml
+++ b/app/src/main/res/layout/item_galleryblock.xml
@@ -20,6 +20,7 @@
 <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"
@@ -34,8 +35,7 @@
 		app:show_mode="pull_out">
 
 		<LinearLayout
-			android:id="@+id/galleryblock_secondary"
-			android:layout_width="wrap_content"
+            android:layout_width="wrap_content"
 			android:layout_height="match_parent">
 
 			<TextView
@@ -50,7 +50,8 @@
 				android:text="@string/main_download"
 				android:foreground="?attr/selectableItemBackground"
 				android:focusable="true"
-				android:clickable="true"/>
+				android:clickable="true"
+				tools:ignore="UnusedAttribute" />
 
 			<TextView
 				android:id="@+id/galleryblock_delete"
@@ -64,7 +65,8 @@
 				android:text="@string/main_delete"
 				android:foreground="?attr/selectableItemBackground"
 				android:focusable="true"
-				android:clickable="true"/>
+				android:clickable="true"
+				tools:ignore="UnusedAttribute" />
 
 		</LinearLayout>
 
@@ -75,7 +77,8 @@
 			android:orientation="vertical"
 			android:foreground="?attr/selectableItemBackground"
 			android:focusable="true"
-			android:clickable="true">
+			android:clickable="true"
+			tools:ignore="UnusedAttribute">
 
 			<androidx.constraintlayout.widget.ConstraintLayout
 				android:layout_width="match_parent"
diff --git a/app/src/main/res/layout/item_mirrors.xml b/app/src/main/res/layout/item_mirrors.xml
index 265ca8af..5c849c09 100644
--- a/app/src/main/res/layout/item_mirrors.xml
+++ b/app/src/main/res/layout/item_mirrors.xml
@@ -18,6 +18,7 @@
   -->
 
 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     xmlns:app="http://schemas.android.com/apk/res-auto"
@@ -44,6 +45,7 @@
         app:tint="?attr/colorControlNormal"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintBottom_toBottomOf="parent"/>
+        app:layout_constraintBottom_toBottomOf="parent"
+        tools:ignore="ContentDescription" />
 
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/item_progressbar.xml b/app/src/main/res/layout/item_progressbar.xml
deleted file mode 100644
index bb03c13d..00000000
--- a/app/src/main/res/layout/item_progressbar.xml
+++ /dev/null
@@ -1,28 +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" android:orientation="vertical"
-	android:layout_width="match_parent" android:layout_height="wrap_content">
-
-	<ProgressBar
-		android:layout_width="wrap_content"
-		android:layout_height="wrap_content"
-		android:layout_gravity="center_horizontal"/>
-
-</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/menu/gallery.xml b/app/src/main/res/menu/gallery.xml
deleted file mode 100644
index 148a501c..00000000
--- a/app/src/main/res/menu/gallery.xml
+++ /dev/null
@@ -1,35 +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/>.
-  -->
-
-<menu xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto">
-
-    <item
-        android:id="@+id/gallery_favorite"
-        android:icon="@drawable/ic_star_empty"
-        android:title=""
-        app:showAsAction="ifRoom"/>
-
-    <item
-        android:id="@+id/gallery_download"
-        android:icon="@drawable/ic_download"
-        android:title=""
-        app:showAsAction="always"/>
-
-</menu>
\ No newline at end of file
diff --git a/app/src/main/res/menu/main.xml b/app/src/main/res/menu/main.xml
index 3f46e9ca..714138d6 100644
--- a/app/src/main/res/menu/main.xml
+++ b/app/src/main/res/menu/main.xml
@@ -23,9 +23,7 @@
 	<item android:id="@+id/main_menu_thin"
 		android:title="@string/main_menu_thin"/>
 
-	<item
-		android:id="@+id/main_menu_sort"
-		android:title="@string/main_menu_sort">
+	<item android:title="@string/main_menu_sort">
 		<menu>
 			<group android:checkableBehavior="single">
 				<item android:id="@+id/main_menu_sort_newest"
diff --git a/app/src/main/res/values-ja/strings.xml b/app/src/main/res/values-ja/strings.xml
index bab6d532..7aa5bf5e 100644
--- a/app/src/main/res/values-ja/strings.xml
+++ b/app/src/main/res/values-ja/strings.xml
@@ -4,9 +4,7 @@
     <string name="galleryblock_series">シリーズ: %1$s</string>
     <string name="galleryblock_type">タイプ: %1$s</string>
     <string name="main_no_result">結果なし</string>
-    <string name="main_search">検索</string>
     <string name="search_hint">ギャラリー検索</string>
-    <string name="search_hint_with_page">ギャラリー検索</string>
     <string name="settings_clear_cache">キャッシュクリア</string>
     <string name="settings_clear_cache_alert_message">キャッシュをクリアするとイメージのロード速度に影響を与えます。実行しますか？</string>
     <string name="settings_storage_usage">%s使用中</string>
@@ -25,7 +23,6 @@
     <string name="settings_clear_history_summary">履歴数: %1$d</string>
     <string name="main_drawer_history">履歴</string>
     <string name="main_drawer_home">トップ</string>
-    <string name="update_download_started">ダウンロード中</string>
     <string name="update_release_note"># リリースノート(v%1$s)\n%2$s</string>
     <string name="settings_security_mode_title">セキュリティーモード</string>
     <string name="settings_security_mode_summary">アプリ履歴でアプリの画面を表示しない</string>
@@ -46,9 +43,7 @@
     <string name="reader_fab_download">バックグラウンドダウンロード</string>
     <string name="reader_notification_text">ダウンロード中…</string>
     <string name="reader_notification_complete">ダウンロード完了</string>
-    <string name="reader_notification_error">ダウンロードエラー</string>
     <string name="reader_fab_download_cancel">バックグラウンドダウンロード中止</string>
-    <string name="main_dialog_delete">このギャラリーを削除</string>
     <string name="main_drawer_downloads">ダウンロード</string>
     <string name="main_jump_title">ページ移動</string>
     <string name="main_jump_message">現ページ番号: %1$d\nページ数: %2$d</string>
@@ -56,10 +51,6 @@
     <string name="main_move">%1$dページへ移動</string>
     <string name="https_block_alert_title">(Korean only)</string>
     <string name="https_block_alert">(Korean only)</string>
-    <string name="main_dialog_export">ギャラリーエクスポート</string>
-    <string name="main_export_complete">エクスポート完了</string>
-    <string name="main_export_open_folder">フォルダを開く</string>
-    <string name="main_export_error">エクスポートエラーが発生しました</string>
     <string name="settings_clear_downloads">ダウンロード削除</string>
     <string name="settings_clear_downloads_alert_message">ダウンロードしたギャラリーを全て削除します。\n実行しますか？</string>
     <string name="settings_mirror_summary">ミラーサーバからイメージをロード</string>
@@ -84,11 +75,8 @@
     <string name="main_menu_sort">ソート</string>
     <string name="main_menu_sort_newest">投稿日時順</string>
     <string name="main_menu_sort_popular">人気順</string>
-    <string name="update_failed">アップデートに失敗しました</string>
-    <string name="update_failed_message">アップデート中エラーが発生しました</string>
     <string name="ignore_update">無視</string>
     <string name="lock_corrupted">ロックファイルが破損されています。Pupilを再再インストールしてください。</string>
-    <string name="update_no_permission">権限がないため自動アップデートを行えません。ホームページで直接ダウンロードしてください。</string>
     <string name="settings_dark_mode_title">ダークモード</string>
     <string name="settings_dark_mode_summary">夜にシコりたい方々へ</string>
     <string name="gallery_details">ギャラリー情報</string>
@@ -101,13 +89,11 @@
     <string name="gallery_thumbnails">サムネイル</string>
     <string name="gallery_related">おすすめ</string>
     <string name="settings_nomedia_title">イメージを隠す</string>
-    <string name="reader_help">ヘルプ</string>
     <string name="main_delete">削除</string>
     <string name="main_download">ダウンロード</string>
     <string name="settings_backup_title">お気に入りバックアップ</string>
     <string name="settings_restore_title">お気に入り復元</string>
     <string name="settings_backup_snackbar">バックアップファイルを作成しました</string>
-    <string name="settings_backup_checkout">確認</string>
     <string name="settings_restore_failed">復元に失敗しました</string>
     <string name="settings_restore_successful">%1$d項目を復元しました</string>
     <string name="settings_dl_location">ダウンロード場所</string>
@@ -134,8 +120,6 @@
     <string name="main_fab_cancel">すべてのダウンロードキャンセル</string>
     <string name="channel_update">アップデート</string>
     <string name="channel_update_description">アップデートの進行状態を表示</string>
-    <string name="channel_import">インポート</string>
-    <string name="channel_import_description">インポート状態を表示</string>
     <string name="settings_import_old_galleries">旧ギャラリーインポート</string>
     <string name="import_old_galleries_folder_not_readable">フォルダを読めません</string>
     <string name="import_old_galleries_notification">旧ギャラリーインポート中…</string>
@@ -149,7 +133,6 @@
     <string name="settings_download_when_cache_disable_warning">キャッシュを使用しないため、ダウンロードできません</string>
     <string name="settings_user_id">ユーザーID</string>
     <string name="settings_user_id_toast">ユーザーIDをクリップボードにコピーしました</string>
-    <string name="reader_error_retry">ダウンロードエラーが発生しました。リトライしますか？</string>
     <string name="reader_fab_retry">リトライ</string>
     <string name="reader_fab_auto">自動スクロール</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-ko/strings.xml b/app/src/main/res/values-ko/strings.xml
index 51409db7..0dc4ee42 100644
--- a/app/src/main/res/values-ko/strings.xml
+++ b/app/src/main/res/values-ko/strings.xml
@@ -4,7 +4,6 @@
     <string name="galleryblock_series">시리즈: %1$s</string>
     <string name="galleryblock_type">종류: %1$s</string>
     <string name="search_hint">갤러리 검색</string>
-    <string name="search_hint_with_page">갤러리 검색</string>
     <string name="settings_default_query">기본 검색어</string>
     <string name="settings_clear_cache">캐시 정리하기</string>
     <string name="settings_clear_cache_alert_message">캐시를 정리하면 이미지 로딩속도가 느려질 수 있습니다. 계속하시겠습니까?</string>
@@ -17,14 +16,12 @@
     <string name="update_title">업데이트가 있습니다!</string>
     <string name="warning">경고</string>
     <string name="main_no_result">결과 없음</string>
-    <string name="main_search">검색</string>
     <string name="settings_miscellaneous_title">기타</string>
     <string name="settings_clear_history">기록 삭제</string>
     <string name="settings_clear_history_alert_message">기록을 삭제하시겠습니까?</string>
     <string name="settings_clear_history_summary">기록 %1$d개 저장됨</string>
     <string name="main_drawer_history">기록</string>
     <string name="main_drawer_home">홈</string>
-    <string name="update_download_started">다운로드 중</string>
     <string name="update_release_note"># 릴리즈 노트(v%1$s)\n%2$s</string>
     <string name="settings_security_mode_summary">최근 앱 목록 창에서 앱 화면을 보이지 않게 합니다</string>
     <string name="settings_security_mode_title">보안 모드 활성화</string>
@@ -45,9 +42,7 @@
     <string name="reader_fab_download">백그라운드 다운로드</string>
     <string name="reader_notification_text">다운로드 중…</string>
     <string name="reader_notification_complete">다운로드 완료</string>
-    <string name="reader_notification_error">다운로드 오류</string>
     <string name="reader_fab_download_cancel">백그라운드 다운로드 취소</string>
-    <string name="main_dialog_delete">갤러리 삭제</string>
     <string name="main_drawer_downloads">다운로드</string>
     <string name="main_jump_title">페이지 이동</string>
     <string name="main_jump_message">현재 페이지: %1$d\n페이지 수: %2$d</string>
@@ -55,10 +50,6 @@
     <string name="main_move">%1$d 페이지로 이동</string>
     <string name="https_block_alert_title">접속 불가 현상 안내</string>
     <string name="https_block_alert">최근 https 차단으로 접속이 안 되는 경우가 발생하고 있습니다 이 경우 플레이스토어에서 Intra앱을 이용하시면 정상이용이 가능합니다.</string>
-    <string name="main_dialog_export">갤러리 내보내기</string>
-    <string name="main_export_complete">내보내기 완료</string>
-    <string name="main_export_open_folder">폴더 열기</string>
-    <string name="main_export_error">내보내기 오류가 발생했습니다</string>
     <string name="settings_clear_downloads">다운로드 삭제</string>
     <string name="settings_clear_downloads_alert_message">다운로드 된 만화를 모두 삭제합니다.\n계속하시겠습니까?</string>
     <string name="main_drawer_favorite">즐겨찾기</string>
@@ -82,11 +73,8 @@
     <string name="main_menu_sort">정렬</string>
     <string name="main_menu_sort_popular">인기순</string>
     <string name="main_menu_sort_newest">시간순</string>
-    <string name="update_failed">"업데이트 에러</string>
-    <string name="update_failed_message">업데이트 중 에러가 발생했습니다</string>
     <string name="ignore_update">무시</string>
     <string name="lock_corrupted">잠금 파일이 손상되었습니다! 앱을 재설치 해 주시기 바랍니다.</string>
-    <string name="update_no_permission">권한이 부여되어 있지 않아 자동 업데이트를 진행할 수 없습니다. 홈페이지에서 직접 다운로드 받으시기 바랍니다.</string>
     <string name="settings_dark_mode_title">다크 모드</string>
     <string name="settings_dark_mode_summary">딥 다크한 모오드</string>
     <string name="gallery_details">갤러리 정보</string>
@@ -99,13 +87,11 @@
     <string name="gallery_related">관련 갤러리</string>
     <string name="gallery_thumbnails">미리보기</string>
     <string name="settings_nomedia_title">이미지 숨기기</string>
-    <string name="reader_help">도움말</string>
     <string name="main_delete">삭제</string>
     <string name="main_download">다운로드</string>
     <string name="settings_backup_title">즐겨찾기 백업</string>
     <string name="settings_restore_title">즐겨찾기 복원</string>
     <string name="settings_backup_snackbar">백업 파일을 생성하였습니다</string>
-    <string name="settings_backup_checkout">확인</string>
     <string name="settings_restore_failed">복원에 실패했습니다</string>
     <string name="settings_restore_successful">%1$d개 항목을 복원했습니다</string>
     <string name="settings_dl_location">다운로드 위치</string>
@@ -134,8 +120,6 @@
     <string name="main_fab_cancel">다운로드 모두 취소</string>
     <string name="channel_update">업데이트</string>
     <string name="channel_update_description">업데이트 진행상황 표시</string>
-    <string name="channel_import">가져오기</string>
-    <string name="channel_import_description">가져오기 상태 표시</string>
     <string name="settings_import_old_galleries">이전 버전 갤러리 가져오기</string>
     <string name="import_old_galleries_folder_not_readable">폴더를 읽을 수 없습니다</string>
     <string name="import_old_galleries_notification">이전 버전 갤러리 가져오는 중…</string>
@@ -149,7 +133,6 @@
     <string name="settings_download_when_cache_disable_warning">캐시를 활성화 해야 다운로드를 진행할 수 있습니다</string>
     <string name="settings_user_id">유저 ID</string>
     <string name="settings_user_id_toast">유저 ID를 클립보드에 복사했습니다</string>
-    <string name="reader_error_retry">다운로드 에러가 발생했습니. 재시도 하시겠습니까?</string>
     <string name="reader_fab_retry">재시도</string>
     <string name="reader_fab_auto">자동 스크롤</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/arrays.xml b/app/src/main/res/values/arrays.xml
index 0afe7479..8e9b419a 100644
--- a/app/src/main/res/values/arrays.xml
+++ b/app/src/main/res/values/arrays.xml
@@ -6,16 +6,6 @@
         <item>25</item>
         <item>50</item>
     </string-array>
-    <!-- Reply Preference -->
-    <string-array name="reply_entries">
-        <item>Reply</item>
-        <item>Reply to all</item>
-    </string-array>
-
-    <string-array name="reply_values">
-        <item>reply</item>
-        <item>reply_all</item>
-    </string-array>
 
     <string-array name="languages">
         <item>indonesian|Bahasa Indonesia</item>
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index efa2ab65..faaf0be1 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -3,7 +3,6 @@
     <color name="colorPrimary">#4fc3f7</color>
     <color name="colorPrimaryDark">#0093c4</color>
     <color name="colorAccent">#D81B60</color>
-    <color name="appbar">#FFFFFF</color>
 
     <color name="material_pink_600">#d81b60</color>
     <color name="material_blue_700">#1976d2</color>
diff --git a/app/src/main/res/values/dimen.xml b/app/src/main/res/values/dimen.xml
index 64a437a1..edf3114d 100644
--- a/app/src/main/res/values/dimen.xml
+++ b/app/src/main/res/values/dimen.xml
@@ -1,16 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-	<dimen name="appbar_padding">64dp</dimen>
-	<dimen name="progress_view_start">32dp</dimen>
-	<dimen name="progress_view_offset">96dp</dimen>
 
 	<dimen name="activity_horizontal_margin">16dp</dimen>
 	<dimen name="activity_vertical_margin">16dp</dimen>
-	<dimen name="nav_header_vertical_spacing">8dp</dimen>
-	<dimen name="nav_header_height">176dp</dimen>
-
-	<dimen name="thumbnail_margin">8dp</dimen>
 
 	<dimen name="galleryblock_thumbnail_thin">100dp</dimen>
-	<dimen name="galleryblock_thumbnail_normal">150dp</dimen>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/ic_launcher_background.xml b/app/src/main/res/values/ic_launcher_background.xml
deleted file mode 100644
index c5d5899f..00000000
--- a/app/src/main/res/values/ic_launcher_background.xml
+++ /dev/null
@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <color name="ic_launcher_background">#FFFFFF</color>
-</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/ids.xml b/app/src/main/res/values/ids.xml
index 824c6e7d..fe6b3c07 100644
--- a/app/src/main/res/values/ids.xml
+++ b/app/src/main/res/values/ids.xml
@@ -1,4 +1,15 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <item name="item_click_support" type="id" />
+    <item name="request_settings" type="id" />
+    <item name="request_lock" type="id" />
+    <item name="request_restore" type="id" />
+
+    <item name="request_import_old_galleries" type="id" />
+    <item name="request_import_old_galleries_old" type="id" />
+    <item name="request_download_folder" type="id" />
+    <item name="request_download_folder_old" type="id" />
+    <item name="request_write_permission_and_saf" type="id" />
+
+    <item name="notification_id_update" type="id" />
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 2f01ac8d..c6b445a8 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -2,15 +2,12 @@
     <string name="app_name" translatable="false" tools:override="true">Pupil</string>
 
     <string name="release_url" translatable="false">https://api.github.com/repos/tom5079/Pupil/releases</string>
-    <string name="release_name" translatable="false">Pupil-v(\\d+\\.)+\\d+\\.apk</string>
 
     <string name="home_page" translatable="false">http://bit.ly/2EZDClw</string>
-    <string name="update" translatable="false">http://bit.ly/2ZlOjXJ</string>
     <string name="help" translatable="false">http://bit.ly/2Z7lNZE</string>
     <string name="github" translatable="false">https://github.com/tom5079/Pupil/</string>
     <string name="email" translatable="false">mailto:pupil.hentai@gmail.com</string>
     <string name="discord" translatable="false">https://discord.gg/Stj4b5v</string>
-    <string name="error_help" translatable="false">http://bit.ly/2KYYhto</string>
 
     <string name="main_settings" translatable="false">Settings</string>
     <string name="galleryblock_thumbnail_description" translatable="false">Thumbnail</string>
@@ -18,8 +15,6 @@
     <string name="reader_imageview_description" translatable="false">Content ImageView</string>
     <string name="page_indicator_placeholder" translatable="false">-/-</string>
 
-    <string name="plus_to_close" translatable="false">Fab</string>
-
     <!-- Translate needed down here -->
 
     <string name="warning">Warning</string>
@@ -27,9 +22,6 @@
     <string name="https_block_alert_title">(Korean only)</string>
     <string name="https_block_alert">(Korean only)</string>
 
-    <string name="update_failed">Update failed</string>
-    <string name="update_failed_message">Please install manually by visiting github release page :{ (or try again!)</string>
-    <string name="update_no_permission">Cannot auto update because permission is denied. Please download manually from the webpage.</string>
     <string name="ignore_update">Ignore</string>
 
     <string name="channel_download">Download</string>
@@ -38,14 +30,10 @@
     <string name="channel_update">Update</string>
     <string name="channel_update_description">Shows update progress</string>
 
-    <string name="channel_import">Import</string>
-    <string name="channel_import_description">Shows progress of import</string>
-
     <string name="unable_to_connect">Unable to connect to hitomi.la</string>
     
     <string name="lock_corrupted">Lock file corrupted! Please re-install Pupil</string>
 
-    <string name="main_search">Search</string>
     <string name="main_no_result">No result</string>
 
     <string name="main_drawer_home">Home</string>
@@ -74,25 +62,16 @@
 
     <string name="main_move">Move to page %1$d</string>
 
-    <string name="main_dialog_delete">Delete this gallery</string>
-    <string name="main_dialog_export">Export this gallery</string>
-
-    <string name="main_export_complete">Export completed</string>
-    <string name="main_export_open_folder">Open Folder</string>
-    <string name="main_export_error">Error occurred during export</string>
-
     <string name="main_download">DOWNLOAD</string>
     <string name="main_delete">DELETE</string>
 
     <string name="update_title">Update available</string>
-    <string name="update_download_started">Download started</string>
     <string name="update_download_completed">Download Completed</string>
     <string name="update_download_completed_description">Click here to update</string>
     <string name="update_notification_description">Downloading update&#8230;</string>
     <string name="update_release_note"># Release Note(v%1$s)\n%2$s</string>
 
     <string name="search_hint">Search galleries</string>
-    <string name="search_hint_with_page">Search galleries</string>
 
     <string name="gallery_details">Details</string>
     <string name="gallery_thumbnails">Thumbnails</string>
@@ -120,11 +99,6 @@
     <string name="reader_fab_download_cancel">Cancel background download</string>
     <string name="reader_notification_text">Downloading&#8230;</string>
     <string name="reader_notification_complete">Download complete</string>
-    <string name="reader_notification_error">Download error</string>
-
-    <string name="reader_error_retry">Download Error. Retry?</string>
-
-    <string name="reader_help">Help</string>
 
     <!-- SETTINGS -->
 
@@ -180,7 +154,6 @@
     <string name="settings_nomedia_title">Hide image from gallery</string>
     <string name="settings_backup_title">Backup favorites</string>
     <string name="settings_backup_snackbar">Backup file created</string>
-    <string name="settings_backup_checkout">Check out</string>
     <string name="settings_restore_title">Restore favorites</string>
     <string name="settings_restore_failed">Restore failed</string>
     <string name="settings_restore_successful">%1$d entries restored</string>
diff --git a/build.gradle b/build.gradle
index 0ff7d69d..f7c2c182 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,7 +1,6 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.3.72'
     repositories {
         google()
         jcenter()
diff --git a/gradle.properties b/gradle.properties
index 0ed0ee79..fc3611bf 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -17,4 +17,6 @@ org.gradle.daemon=true
 org.gradle.configureondemand=true
 kotlin.code.style=official
 android.enableJetifier=true
-android.useAndroidX=true
\ No newline at end of file
+android.useAndroidX=true
+
+kotlin_version=1.4.0
\ No newline at end of file
diff --git a/settings.gradle b/settings.gradle
index 436dba02..e7b4def4 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1 +1 @@
-include ':app', ':libpupil'
+include ':app'