Does not work

.idea/jarRepositories.xml

@@ -66,5 +66,10 @@
       <option name="name" value="maven3" />
       <option name="url" value="https://dl.bintray.com/tom5079/maven" />
     </remote-repository>
+    <remote-repository>
+      <option name="id" value="maven3" />
+      <option name="name" value="maven3" />
+      <option name="url" value="http://dl.bintray.com/piasy/maven" />
+    </remote-repository>
   </component>
 </project>

app/build.gradle

@@ -14,6 +14,23 @@ if (file("google-services.json").exists() && file("src/debug/google-services.jso
     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 {
@@ -65,6 +82,7 @@ dependencies {
     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-json:1.0.0-RC2"
+    
     implementation "androidx.appcompat:appcompat:1.2.0"
     implementation "androidx.activity:activity-ktx:1.2.0-alpha08"
     implementation "androidx.fragment:fragment-ktx:1.3.0-alpha08"
@@ -72,41 +90,48 @@ dependencies {
     implementation "androidx.constraintlayout:constraintlayout:2.0.1"
     implementation "androidx.gridlayout:gridlayout:1.0.0"
     implementation "androidx.biometric:biometric:1.0.1"
+
     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.google.android.gms:play-services-mlkit-face-detection:16.1.1"
+
     implementation "com.github.clans:fab:1.6.4"
+
     //implementation "com.quiph.ui:recyclerviewfastscroller:0.2.1"
+
+    implementation 'com.github.piasy:BigImageViewer:1.6.7'
+    implementation 'com.github.piasy:FrescoImageLoader:1.6.7'
+    implementation 'com.github.piasy:FrescoImageViewFactory:1.6.7'
+
     //noinspection GradleDependency
-    implementation "com.squareup.okhttp3:okhttp:3.12.12"
+    implementation "com.squareup.okhttp3:okhttp:$okhttp_version"
     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:recyclerview-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 "com.gu:option:1.3"
+
     implementation "net.rdrei.android.dirchooser:library:3.2@aar"
-    implementation "com.github.chrisbanes:PhotoView:2.3.0"
+    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 "xyz.quaver:libpupil:1.7.2"
     implementation "xyz.quaver:documentfilex:0.2.15"
     implementation "xyz.quaver:floatingsearchview:1.0.5"
+
     testImplementation "junit:junit:4.13"
     androidTestImplementation "androidx.test.ext:junit:1.1.2"
     androidTestImplementation "androidx.test:rules:1.3.0"

app/src/main/AndroidManifest.xml

@@ -25,7 +25,6 @@
         android:theme="@style/AppTheme"
         android:networkSecurityConfig="@xml/network_security_config"
         tools:replace="android:theme"
-        android:largeHeap="true"
         tools:ignore="UnusedAttribute">
 
         <meta-data

app/src/main/java/xyz/quaver/pupil/Pupil.kt

@@ -26,14 +26,13 @@ import android.os.Build
 import androidx.appcompat.app.AppCompatDelegate
 import androidx.core.content.ContextCompat
 import androidx.preference.PreferenceManager
+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.crashlytics.FirebaseCrashlytics
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
 import okhttp3.Interceptor
 import okhttp3.OkHttpClient
 import okhttp3.Response
@@ -118,20 +117,6 @@ class Pupil : Application() {
         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
-        }
-
         if (BuildConfig.DEBUG)
             FirebaseAnalytics.getInstance(this).setAnalyticsCollectionEnabled(false)
 
@@ -143,6 +128,8 @@ class Pupil : Application() {
             e.printStackTrace()
         }
 
+        BigImageViewer.initialize(FrescoImageLoader.with(this))
+
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
             val manager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
 

app/src/main/java/xyz/quaver/pupil/PupilGlideModule.kt

@@ -1,41 +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
-
-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)
-        )
-    }
-
-}

app/src/main/java/xyz/quaver/pupil/adapters/GalleryBlockAdapter.kt

@@ -80,7 +80,7 @@ class GalleryBlockAdapter(private val glide: RequestManager, private val galleri
             val cache = Cache.getInstance(context, galleryID)
 
             CoroutineScope(Dispatchers.Main).launch {
-                if (cache.metadata.reader == null || Preferences["cache_disable"]) {
+                if (cache.metadata.reader == null) {
                     view.galleryblock_progressbar_layout.visibility = View.GONE
                     view.galleryblock_progress_complete.visibility = View.INVISIBLE
                     return@launch

app/src/main/java/xyz/quaver/pupil/adapters/ReaderAdapter.kt

@@ -18,34 +18,23 @@
 
 package xyz.quaver.pupil.adapters
 
-import android.graphics.drawable.Drawable
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.constraintlayout.widget.ConstraintLayout
+import androidx.core.view.updateLayoutParams
 import androidx.recyclerview.widget.RecyclerView
-import com.bumptech.glide.Glide
+import com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView
-import com.bumptech.glide.load.DataSource
+import com.facebook.drawee.view.SimpleDraweeView
-import com.bumptech.glide.load.engine.DiskCacheStrategy
+import com.github.piasy.biv.view.FrescoImageViewFactory
-import com.bumptech.glide.load.engine.GlideException
+import com.github.piasy.biv.view.ImageShownCallback
-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.pupil.BuildConfig
 import xyz.quaver.pupil.R
-import xyz.quaver.pupil.services.DownloadService
 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
@@ -57,18 +46,45 @@ class ReaderAdapter(private val activity: ReaderActivity,
     var reader: Reader? = null
     val timer = Timer()
 
-    private val glide = Glide.with(activity)
-
     var isFullScreen = false
 
-    var onItemClickListener : ((Int) -> (Unit))? = null
+    var onItemClickListener : (() -> (Unit))? = null
 
-    class ViewHolder(val view: View) : RecyclerView.ViewHolder(view)
+    class ViewHolder(val view: View) : RecyclerView.ViewHolder(view) {
+        fun clear() {
+            view.image.mainView.let {
+                when (it) {
+                    is SubsamplingScaleImageView ->
+                        it.recycle()
+                    is SimpleDraweeView ->
+                        it.controller = null
+                }
+            }
+        }
+    }
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
         return LayoutInflater.from(parent.context).inflate(
             R.layout.item_reader, parent, false
         ).let {
+            with (it) {
+                image.setImageViewFactory(FrescoImageViewFactory())
+                image.setImageShownCallback(object: ImageShownCallback {
+                    override fun onThumbnailShown() {}
+                    override fun onMainImageShown() {
+                        placeholder.updateLayoutParams<ConstraintLayout.LayoutParams> {
+                            dimensionRatio = null
+                        }
+                    }
+                })
+                image.setOnClickListener {
+                    onItemClickListener?.invoke()
+                }
+                setOnClickListener {
+                    onItemClickListener?.invoke()
+                }
+            }
+
             ViewHolder(it)
         }
     }
@@ -80,121 +96,43 @@ class ReaderAdapter(private val activity: ReaderActivity,
         if (cache == null)
             cache = Cache.getInstance(holder.view.context, galleryID)
 
-        if (isFullScreen) {
+        holder.view.layoutParams.height =
-            holder.view.layoutParams.height = ConstraintLayout.LayoutParams.MATCH_PARENT
+            if (isFullScreen)
-        } else {
+                ConstraintLayout.LayoutParams.MATCH_PARENT
-            holder.view.layoutParams.height = ConstraintLayout.LayoutParams.WRAP_CONTENT
+            else
+                ConstraintLayout.LayoutParams.WRAP_CONTENT
 
-            (holder.view.progress_layout.layoutParams as ConstraintLayout.LayoutParams)
+        holder.view.image.layoutParams.height =
-                .dimensionRatio = "${reader!!.galleryInfo.files[position].width}:${reader!!.galleryInfo.files[position].height}"
+            if (isFullScreen)
-        }
+                ConstraintLayout.LayoutParams.MATCH_PARENT
+            else
+                ConstraintLayout.LayoutParams.WRAP_CONTENT
 
-        holder.view.image.setOnPhotoTapListener { _, _, _ ->
+        holder.view.placeholder.updateLayoutParams<ConstraintLayout.LayoutParams> {
-            onItemClickListener?.invoke(position)
+            dimensionRatio = "${reader!!.galleryInfo.files[position].width}:${reader!!.galleryInfo.files[position].height}"
-        }
-
-        holder.view.setOnClickListener {
-            onItemClickListener?.invoke(position)
         }
 
         holder.view.reader_index.text = (position+1).toString()
 
-        if (Preferences["cache_disable"]) {
+        val image = cache!!.getImage(position)
-            val lowQuality: Boolean = Preferences["low_quality"]
+        val progress = activity.downloader?.progress?.get(galleryID)?.get(position)
 
-            val url = when (reader!!.code) {
+        if (progress?.isInfinite() == true && image != null) {
-                Code.HITOMI ->
+            holder.view.progress_group.visibility = View.INVISIBLE
-                    GlideUrl(
+            holder.view.image.showImage(image.uri)
-                        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)
-                            )
-                    }
-                    .error(R.drawable.image_broken_variant)
-                    .into(holder.view.image)
-            }
         } else {
-            val image = cache!!.getImage(position)
+            holder.view.progress_group.visibility = View.VISIBLE
-            val progress = activity.downloader?.progress?.get(galleryID)?.get(position)
+            holder.view.reader_item_progressbar.progress =
+                if (progress?.isInfinite() == true)
+                    100
+                else
+                    progress?.roundToInt() ?: 0
 
-            if (progress?.isInfinite() == true && image != null) {
+            holder.clear()
-                holder.view.reader_item_progressbar.visibility = View.INVISIBLE
 
-                CoroutineScope(Dispatchers.IO).launch {
+            timer.schedule(1000) {
-                    glide
+                CoroutineScope(Dispatchers.Main).launch {
-                        .load(image.uri)
+                    notifyItemChanged(position)
-                        .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) } }
-                }
-            } else {
-                holder.view.reader_item_progressbar.visibility = View.VISIBLE
-
-                glide.clear(holder.view.image)
-
-                holder.view.reader_item_progressbar.progress =
-                    if (progress?.isInfinite() == true)
-                        100
-                    else
-                        progress?.roundToInt() ?: 0
-
-                holder.view.image.setImageDrawable(null)
-
-                timer.schedule(1000) {
-                    CoroutineScope(Dispatchers.Main).launch {
-                        notifyItemChanged(position)
-                    }
                 }
             }
         }
@@ -202,4 +140,8 @@ class ReaderAdapter(private val activity: ReaderActivity,
 
     override fun getItemCount() = reader?.galleryInfo?.files?.size ?: 0
 
+    override fun onViewRecycled(holder: ViewHolder) {
+        holder.clear()
+    }
+
 }

app/src/main/java/xyz/quaver/pupil/ui/MainActivity.kt

@@ -332,16 +332,13 @@ 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()
+                    if (DownloadManager.getInstance(context).isDownloading(galleryID)) {     //download in progress
+                        DownloadService.cancel(this@MainActivity, galleryID)
+                    }
                     else {
-                        if (DownloadManager.getInstance(context).isDownloading(galleryID)) {     //download in progress
+                        DownloadManager.getInstance(context).addDownloadFolder(galleryID)
-                            DownloadService.cancel(this@MainActivity, galleryID)
+                        DownloadService.download(this@MainActivity, galleryID)
-                        }
-                        else {
-                            DownloadManager.getInstance(context).addDownloadFolder(galleryID)
-                            DownloadService.download(this@MainActivity, galleryID)
-                        }
                     }
 
                     closeAllItems()

app/src/main/java/xyz/quaver/pupil/ui/ReaderActivity.kt

@@ -139,38 +139,7 @@ class ReaderActivity : BaseActivity() {
             return
         }
 
-        if (Preferences["cache_disable"]) {
+        initDownloadListener()
-            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
-            initDownloadListener()
-
         initView()
     }
 
@@ -396,19 +365,15 @@ class ReaderActivity : BaseActivity() {
             animateDownloadFAB(DownloadManager.getInstance(this@ReaderActivity).getDownloadFolder(galleryID) != null) //If download in progress, animate button
 
             setOnClickListener {
-                if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean("cache_disable", false))
+                val downloadManager = DownloadManager.getInstance(this@ReaderActivity)
-                    Toast.makeText(context, R.string.settings_download_when_cache_disable_warning, Toast.LENGTH_SHORT).show()
-                else {
-                    val downloadManager = DownloadManager.getInstance(this@ReaderActivity)
 
-                    if (downloadManager.isDownloading(galleryID)) {
+                if (downloadManager.isDownloading(galleryID)) {
-                        downloadManager.deleteDownloadFolder(galleryID)
+                    downloadManager.deleteDownloadFolder(galleryID)
-                        animateDownloadFAB(false)
+                    animateDownloadFAB(false)
-                    } else {
+                } else {
-                        downloadManager.addDownloadFolder(galleryID)
+                    downloadManager.addDownloadFolder(galleryID)
-                        DownloadService.download(context, galleryID, true)
+                    DownloadService.download(context, galleryID, true)
-                        animateDownloadFAB(true)
+                    animateDownloadFAB(true)
-                    }
                 }
             }
         }

app/src/main/res/layout/item_galleryblock.xml

@@ -110,7 +110,7 @@
 			<ImageView
 				android:id="@+id/galleryblock_thumbnail"
 				android:layout_width="150dp"
-				android:layout_height="wrap_content"
+				android:layout_height="0dp"
 				android:contentDescription="@string/galleryblock_thumbnail_description"
 				android:adjustViewBounds="true"
 				app:layout_constraintLeft_toLeftOf="parent"
@@ -188,7 +188,7 @@
 				android:layout_width="wrap_content"
 				android:layout_height="wrap_content"
 				app:barrierDirection="bottom"
-				app:constraint_referenced_ids="galleryblock_thumbnail,galleryblock_tag_group"/>
+				app:constraint_referenced_ids="galleryblock_tag_group"/>
 
 			<View
 				android:id="@+id/divider"

app/src/main/res/layout/item_reader.xml

@@ -21,47 +21,60 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    app:layout_constraintHeight_max="2000dp"
+    android:layout_marginBottom="8dp"
-    app:layout_constraintTop_toTopOf="parent"
-    app:layout_constraintBottom_toBottomOf="parent"
-    android:paddingBottom="8dp"
     android:background="@drawable/reader_item_boundary">
+    
+    <androidx.constraintlayout.widget.Guideline
+        android:id="@+id/guideline_center_vertical"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        app:layout_constraintGuide_percent="0.5"/>
 
-    <LinearLayout
+    <ProgressBar
-        android:id="@+id/progress_layout"
+        android:id="@+id/reader_item_progressbar"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        style="?android:progressBarStyleHorizontal"
+        android:indeterminate="false"
+        android:progress="0"
+        android:max="100"
+        android:visibility="visible"
+        app:layout_constraintBottom_toTopOf="@id/guideline_center_vertical"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"/>
+
+    <TextView
+        android:id="@+id/reader_index"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        app:layout_constraintTop_toBottomOf="@id/guideline_center_vertical"
+        app:layout_constraintLeft_toLeftOf="@id/reader_item_progressbar"
+        app:layout_constraintRight_toRightOf="@id/reader_item_progressbar"
+        style="@style/TextAppearance.AppCompat.Caption"/>
+    
+    <androidx.constraintlayout.widget.Group
+        android:id="@+id/progress_group"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:visibility="visible"
+        app:constraint_referenced_ids="reader_item_progressbar, reader_index"/>
+
+    <androidx.constraintlayout.widget.Placeholder
+        android:id="@+id/placeholder"
         android:layout_width="match_parent"
         android:layout_height="0dp"
         app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"/>
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        android:gravity="center"
-        android:orientation="vertical">
 
-        <ProgressBar
+    <com.github.piasy.biv.view.BigImageView
-            android:id="@+id/reader_item_progressbar"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            style="?android:progressBarStyleHorizontal"
-            android:indeterminate="false"
-            android:progress="0"
-            android:max="100"
-            android:visibility="visible"/>
-
-        <TextView
-            android:id="@+id/reader_index"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            style="@style/TextAppearance.AppCompat.Caption"/>
-
-    </LinearLayout>
-
-    <com.github.chrisbanes.photoview.PhotoView
         android:id="@+id/image"
-        android:adjustViewBounds="true"
-        android:scaleType="fitCenter"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
+        android:adjustViewBounds="true"
+        app:initScaleType="fitCenter"
+        app:failureImage="@drawable/image_broken_variant"
+        app:optimizeDisplay="true"
         app:layout_constraintTop_toTopOf="parent"
         app:layout_constraintBottom_toBottomOf="parent"/>
 

app/src/main/res/values-ja/strings.xml

@@ -127,8 +127,6 @@
     <string name="settings_lock_fingerprint_prompt">Pupil指紋ロック™</string>
     <string name="settings_lock_fingerprint_prompt_subtitle">こうかはばつぐんだ!</string>
     <string name="default_query_dialog_filter_loli">登場人物を全て18歳以上にする</string>
-    <string name="settings_cache_disable">キャッシュを使用しない</string>
-    <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_fab_retry">リトライ</string>

app/src/main/res/values-ko/strings.xml

@@ -127,8 +127,6 @@
     <string name="settings_lock_fingerprint_prompt">Pupil 지문 인식™</string>
     <string name="settings_lock_fingerprint_prompt_subtitle">힘세고 강한 지문 인식</string>
     <string name="default_query_dialog_filter_loli">판사님 저는 페도가 아닙니다</string>
-    <string name="settings_cache_disable">캐시 비활성화</string>
-    <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_fab_retry">재시도</string>

app/src/main/res/values/strings.xml

@@ -155,8 +155,6 @@
     <string name="settings_download_folder_available">%s available</string>
     <string name="settings_download_folder_custom">Custom Location</string>
     <string name="settings_download_folder_not_writable">This folder is not writable. Please select another folder.</string>
-    <string name="settings_cache_disable">Disable Cache</string>
-    <string name="settings_download_when_cache_disable_warning">Download is disabled when the cache is disabled</string>
     <string name="settings_low_quality">Low quality images</string>
     <string name="settings_low_quality_summary">Load low quality images to improve load speed and data usage</string>
 

app/src/main/res/xml/root_preferences.xml

@@ -44,10 +44,6 @@
             app:key="download_folder"
             app:title="@string/settings_download_folder"/>
 
-        <SwitchPreferenceCompat
-            app:key="cache_disable"
-            app:title="@string/settings_cache_disable"/>
-
         <SwitchPreferenceCompat
             app:key="nomedia"
             app:title="@string/settings_nomedia_title"/>

build.gradle

@@ -21,6 +21,7 @@ buildscript {
 
 allprojects {
     repositories {
+        maven { url  "http://dl.bintray.com/piasy/maven" }
         google()
         jcenter()
         maven { url "https://jitpack.io" }