Use MainScope for coroutines in ui package classes (#8845)

app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/pager/PagerPageHolder.kt

@@ -13,13 +13,12 @@ import eu.kanade.tachiyomi.ui.reader.model.ReaderPage
 import eu.kanade.tachiyomi.ui.reader.viewer.ReaderPageImageView
 import eu.kanade.tachiyomi.ui.reader.viewer.ReaderProgressIndicator
 import eu.kanade.tachiyomi.ui.webview.WebViewActivity
-import eu.kanade.tachiyomi.util.lang.launchUI
 import eu.kanade.tachiyomi.util.system.ImageUtil
 import eu.kanade.tachiyomi.widget.ViewPagerAdapter
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
+import kotlinx.coroutines.MainScope
 import kotlinx.coroutines.flow.collectLatest
+import kotlinx.coroutines.launch
 import rx.Observable
 import rx.Subscription
 import rx.android.schedulers.AndroidSchedulers
@@ -58,7 +57,7 @@ class PagerPageHolder(
      */
     private var errorLayout: ReaderErrorBinding? = null
 
-    private val scope = CoroutineScope(Dispatchers.IO)
+    private val scope = MainScope()
 
     /**
      * Subscription for status changes of the page.
@@ -108,7 +107,7 @@ class PagerPageHolder(
 
     private fun launchProgressJob() {
         progressJob?.cancel()
-        progressJob = scope.launchUI {
+        progressJob = scope.launch {
             page.progressFlow.collectLatest { value -> progressIndicator.setProgress(value) }
         }
     }

app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/pager/PagerTransitionHolder.kt

@@ -15,13 +15,12 @@ import eu.kanade.tachiyomi.ui.reader.model.ChapterTransition
 import eu.kanade.tachiyomi.ui.reader.model.ReaderChapter
 import eu.kanade.tachiyomi.ui.reader.viewer.ReaderButton
 import eu.kanade.tachiyomi.ui.reader.viewer.ReaderTransitionView
-import eu.kanade.tachiyomi.util.lang.launchUI
 import eu.kanade.tachiyomi.util.system.dpToPx
 import eu.kanade.tachiyomi.widget.ViewPagerAdapter
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
+import kotlinx.coroutines.MainScope
 import kotlinx.coroutines.flow.collectLatest
+import kotlinx.coroutines.launch
 
 /**
  * View of the ViewPager that contains a chapter transition.
@@ -33,7 +32,7 @@ class PagerTransitionHolder(
     val transition: ChapterTransition,
 ) : LinearLayout(readerThemedContext), ViewPagerAdapter.PositionableView {
 
-    private val scope = CoroutineScope(Dispatchers.IO)
+    private val scope = MainScope()
     private var stateJob: Job? = null
 
     /**
@@ -81,7 +80,7 @@ class PagerTransitionHolder(
      */
     private fun observeStatus(chapter: ReaderChapter) {
         stateJob?.cancel()
-        stateJob = scope.launchUI {
+        stateJob = scope.launch {
             chapter.stateFlow
                 .collectLatest { state ->
                     pagesContainer.removeAllViews()

app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/webtoon/WebtoonPageHolder.kt

@@ -18,13 +18,12 @@ import eu.kanade.tachiyomi.ui.reader.model.StencilPage
 import eu.kanade.tachiyomi.ui.reader.viewer.ReaderPageImageView
 import eu.kanade.tachiyomi.ui.reader.viewer.ReaderProgressIndicator
 import eu.kanade.tachiyomi.ui.webview.WebViewActivity
-import eu.kanade.tachiyomi.util.lang.launchUI
 import eu.kanade.tachiyomi.util.system.ImageUtil
 import eu.kanade.tachiyomi.util.system.dpToPx
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
+import kotlinx.coroutines.MainScope
 import kotlinx.coroutines.flow.collectLatest
+import kotlinx.coroutines.launch
 import rx.Observable
 import rx.Subscription
 import rx.android.schedulers.AndroidSchedulers
@@ -71,7 +70,7 @@ class WebtoonPageHolder(
      */
     private var page: ReaderPage? = null
 
-    private val scope = CoroutineScope(Dispatchers.IO)
+    private val scope = MainScope()
 
     /**
      * Subscription for status changes of the page.
@@ -156,7 +155,7 @@ class WebtoonPageHolder(
 
         val page = page ?: return
 
-        progressJob = scope.launchUI {
+        progressJob = scope.launch {
             page.progressFlow.collectLatest { value -> progressIndicator.setProgress(value) }
         }
     }

app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/webtoon/WebtoonTransitionHolder.kt

@@ -13,12 +13,11 @@ import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.ui.reader.model.ChapterTransition
 import eu.kanade.tachiyomi.ui.reader.model.ReaderChapter
 import eu.kanade.tachiyomi.ui.reader.viewer.ReaderTransitionView
-import eu.kanade.tachiyomi.util.lang.launchUI
 import eu.kanade.tachiyomi.util.system.dpToPx
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
+import kotlinx.coroutines.MainScope
 import kotlinx.coroutines.flow.collectLatest
+import kotlinx.coroutines.launch
 
 /**
  * Holder of the webtoon viewer that contains a chapter transition.
@@ -28,7 +27,7 @@ class WebtoonTransitionHolder(
     viewer: WebtoonViewer,
 ) : WebtoonBaseHolder(layout, viewer) {
 
-    private val scope = CoroutineScope(Dispatchers.IO)
+    private val scope = MainScope()
     private var stateJob: Job? = null
 
     private val transitionView = ReaderTransitionView(context)
@@ -82,7 +81,7 @@ class WebtoonTransitionHolder(
      */
     private fun observeStatus(chapter: ReaderChapter, transition: ChapterTransition) {
         stateJob?.cancel()
-        stateJob = scope.launchUI {
+        stateJob = scope.launch {
             chapter.stateFlow
                 .collectLatest { state ->
                     pagesContainer.removeAllViews()