Optimize images in lists

app/src/main/java/org/koitharu/kotatsu/ui/common/list/BaseRecyclerAdapter.kt

@@ -80,6 +80,10 @@ abstract class BaseRecyclerAdapter<T, E>(private val onItemClickListener: OnRecy
 		onDataSetChanged()
 	}
 
+	override fun onViewRecycled(holder: BaseViewHolder<T, E>) {
+		holder.onRecycled()
+	}
+
 	final override fun getItemCount() = dataSet.size
 
 	final override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): BaseViewHolder<T, E> {

app/src/main/java/org/koitharu/kotatsu/ui/common/list/BaseViewHolder.kt

@@ -40,5 +40,7 @@ abstract class BaseViewHolder<T, E> protected constructor(view: View) :
 		return this
 	}
 
+	open fun onRecycled() = Unit
+
 	abstract fun onBind(data: T, extra: E)
 }

app/src/main/java/org/koitharu/kotatsu/ui/main/list/MangaGridHolder.kt

@@ -1,8 +1,8 @@
 package org.koitharu.kotatsu.ui.main.list
 
 import android.view.ViewGroup
+import coil.api.clear
 import coil.api.load
-import coil.request.RequestDisposable
 import kotlinx.android.synthetic.main.item_manga_grid.*
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.model.Manga
@@ -11,16 +11,17 @@ import org.koitharu.kotatsu.ui.common.list.BaseViewHolder
 
 class MangaGridHolder(parent: ViewGroup) : BaseViewHolder<Manga, MangaHistory?>(parent, R.layout.item_manga_grid) {
 
-	private var coverRequest: RequestDisposable? = null
-
 	override fun onBind(data: Manga, extra: MangaHistory?) {
-		coverRequest?.dispose()
+		imageView_cover.clear()
-		imageView_cover.setImageDrawable(null)
 		textView_title.text = data.title
-		coverRequest = imageView_cover.load(data.coverUrl) {
+		imageView_cover.load(data.coverUrl) {
 			placeholder(R.drawable.ic_placeholder)
 			fallback(R.drawable.ic_placeholder)
 			error(R.drawable.ic_placeholder)
 		}
 	}
+
+	override fun onRecycled() {
+		imageView_cover.clear()
+	}
 }

app/src/main/java/org/koitharu/kotatsu/ui/main/list/MangaListDetailsHolder.kt

@@ -3,8 +3,8 @@ package org.koitharu.kotatsu.ui.main.list
 import android.annotation.SuppressLint
 import android.view.ViewGroup
 import androidx.core.view.isVisible
+import coil.api.clear
 import coil.api.load
-import coil.request.RequestDisposable
 import kotlinx.android.synthetic.main.item_manga_list_details.*
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.model.Manga
@@ -15,14 +15,12 @@ import kotlin.math.roundToInt
 
 class MangaListDetailsHolder(parent: ViewGroup) : BaseViewHolder<Manga, MangaHistory?>(parent, R.layout.item_manga_list_details) {
 
-	private var coverRequest: RequestDisposable? = null
-
 	@SuppressLint("SetTextI18n")
 	override fun onBind(data: Manga, extra: MangaHistory?) {
-		coverRequest?.dispose()
+		imageView_cover.clear()
 		textView_title.text = data.title
 		textView_subtitle.textAndVisible = data.altTitle
-		coverRequest = imageView_cover.load(data.coverUrl) {
+		imageView_cover.load(data.coverUrl) {
 			placeholder(R.drawable.ic_placeholder)
 			fallback(R.drawable.ic_placeholder)
 			error(R.drawable.ic_placeholder)
@@ -37,4 +35,8 @@ class MangaListDetailsHolder(parent: ViewGroup) : BaseViewHolder<Manga, MangaHis
 			it.title
 		}
 	}
+
+	override fun onRecycled() {
+		imageView_cover.clear()
+	}
 }

app/src/main/java/org/koitharu/kotatsu/ui/main/list/MangaListHolder.kt

@@ -1,8 +1,8 @@
 package org.koitharu.kotatsu.ui.main.list
 
 import android.view.ViewGroup
+import coil.api.clear
 import coil.api.load
-import coil.request.RequestDisposable
 import kotlinx.android.synthetic.main.item_manga_list.*
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.model.Manga
@@ -13,16 +13,18 @@ import org.koitharu.kotatsu.utils.ext.textAndVisible
 class MangaListHolder(parent: ViewGroup) :
 	BaseViewHolder<Manga, MangaHistory?>(parent, R.layout.item_manga_list) {
 
-	private var coverRequest: RequestDisposable? = null
-
 	override fun onBind(data: Manga, extra: MangaHistory?) {
-		coverRequest?.dispose()
+		imageView_cover.clear()
 		textView_title.text = data.title
 		textView_subtitle.textAndVisible = data.tags.joinToString(", ") { it.title }
-		coverRequest = imageView_cover.load(data.coverUrl) {
+		imageView_cover.load(data.coverUrl) {
 			placeholder(R.drawable.ic_placeholder)
 			fallback(R.drawable.ic_placeholder)
 			error(R.drawable.ic_placeholder)
 		}
 	}
+
+	override fun onRecycled() {
+		imageView_cover.clear()
+	}
 }

app/src/main/java/org/koitharu/kotatsu/ui/reader/standard/PageHolder.kt

@@ -30,6 +30,11 @@ class PageHolder(parent: ViewGroup, private val loader: PageLoader) :
 		doLoad(data, force = false)
 	}
 
+	override fun onRecycled() {
+		job?.cancel()
+		ssiv.recycle()
+	}
+
 	private fun doLoad(data: MangaPage, force: Boolean) {
 		job?.cancel()
 		job = launch {

app/src/main/java/org/koitharu/kotatsu/ui/reader/thumbnails/PageThumbnailHolder.kt

@@ -50,4 +50,9 @@ class PageThumbnailHolder(parent: ViewGroup, private val scope: CoroutineScope)
 			}
 		}
 	}
+
+	override fun onRecycled() {
+		job?.cancel()
+		imageView_thumb.setImageDrawable(null)
+	}
 }

app/src/main/java/org/koitharu/kotatsu/ui/reader/wetoon/WebtoonHolder.kt

@@ -6,7 +6,7 @@ import androidx.core.net.toUri
 import androidx.core.view.isVisible
 import com.davemorrissey.labs.subscaleview.ImageSource
 import com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView
-import kotlinx.android.synthetic.main.item_page.*
+import kotlinx.android.synthetic.main.item_page_webtoon.*
 import kotlinx.coroutines.*
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.model.MangaPage
@@ -53,6 +53,11 @@ class WebtoonHolder(parent: ViewGroup, private val loader: PageLoader) :
 		}
 	}
 
+	override fun onRecycled() {
+		job?.cancel()
+		ssiv.recycle()
+	}
+
 	fun getScrollY() = ssiv.center?.y ?: 0f
 
 	fun restoreScroll(scroll: Float) {