add loading indicator

app/src/main/java/eu/kanade/tachiyomi/ui/player/Gestures.kt

@@ -50,11 +50,20 @@ class Gestures(
         when {
             e.x < width * 0.4F -> activity.doubleTapSeek(-interval, e)
             e.x > width * 0.6F -> activity.doubleTapSeek(interval, e)
-            else -> return false
         }
         return true
     }
 
+    override fun onDoubleTapEvent(e: MotionEvent): Boolean {
+        if (activity.isLocked) return false
+        if (e.y < height * 0.05F || e.y > height * 0.95F || e.x < width * 0.05F || e.x > width * 0.95F) return false
+        if (e.action == MotionEvent.ACTION_UP && e.x > width * 0.4F && e.x < width * 0.6F) {
+            activity.toggleControls()
+            return true
+        }
+        return false
+    }
+
     override fun onScroll(
         e1: MotionEvent,
         e2: MotionEvent,

app/src/main/java/eu/kanade/tachiyomi/ui/player/PlayerActivity.kt

@@ -271,8 +271,26 @@ class PlayerActivity :
         binding.playbackSeekbar.setOnSeekBarChangeListener(seekBarChangeListener)
         // player.playFile(currentVideoList!!.first().videoUrl!!.toString())
 
-        binding.nextBtn.setOnClickListener { presenter.nextEpisode() }
+        binding.nextBtn.setOnClickListener {
-        binding.prevBtn.setOnClickListener { presenter.previousEpisode() }
+            val wasPlayerPaused = player.paused
+            player.paused = true
+            showLoadingIndicator(true)
+            presenter.nextEpisode {
+                if (wasPlayerPaused == false) {
+                    player.paused = false
+                }
+            }
+        }
+        binding.prevBtn.setOnClickListener {
+            val wasPlayerPaused = player.paused
+            player.paused = true
+            showLoadingIndicator(true)
+            presenter.previousEpisode {
+                if (wasPlayerPaused == false) {
+                    player.paused = false
+                }
+            }
+        }
 
         if (presenter?.needsInit() == true) {
             val anime = intent.extras!!.getLong("anime", -1)
@@ -288,7 +306,6 @@ class PlayerActivity :
     }
 
     fun toggleControls() {
-
         windowInsetsController.hide(WindowInsetsCompat.Type.systemBars())
         if (isLocked) {
             // Hide controls
@@ -307,6 +324,12 @@ class PlayerActivity :
         }
     }
 
+    private fun showLoadingIndicator(visible: Boolean) {
+        if (binding.loadingIndicator.isVisible == visible) return
+        binding.playBtn.isVisible = !visible
+        binding.loadingIndicator.isVisible = visible
+    }
+
     private fun pickAudio() {
         val restore = pauseForDialog()
 
@@ -397,16 +420,15 @@ class PlayerActivity :
         val picker = SpeedPickerDialog()
 
         val restore = pauseForDialog()
-        genericPickerDialog(picker, R.string.title_speed_dialog, "speed") {
+        speedPickerDialog(picker, R.string.title_speed_dialog) {
             updateSpeedButton()
             restore()
         }
     }
 
-    private fun genericPickerDialog(
+    private fun speedPickerDialog(
         picker: PickerDialog,
         @StringRes titleRes: Int,
-        property: String,
         restoreState: StateRestoreCallback
     ) {
         val dialog = with(AlertDialog.Builder(this)) {
@@ -415,9 +437,9 @@ class PlayerActivity :
             setPositiveButton(R.string.dialog_ok) { _, _ ->
                 picker.number?.let {
                     if (picker.isInteger()) {
-                        MPVLib.setPropertyInt(property, it.toInt())
+                        MPVLib.setPropertyInt("speed", it.toInt())
                     } else {
-                        MPVLib.setPropertyDouble(property, it)
+                        MPVLib.setPropertyDouble("speed", it)
                     }
                 }
             }
@@ -426,7 +448,7 @@ class PlayerActivity :
             create()
         }
 
-        picker.number = MPVLib.getPropertyDouble(property)
+        picker.number = MPVLib.getPropertyDouble("speed")
         dialog.show()
     }
 
@@ -792,6 +814,7 @@ class PlayerActivity :
     }
 
     private fun fileLoaded() {
+        launchUI { showLoadingIndicator(false) }
         clearTracks()
         player.loadTracks()
         subTracks += player.tracks.getValue("sub")

app/src/main/java/eu/kanade/tachiyomi/ui/player/PlayerPresenter.kt

@@ -185,7 +185,7 @@ class PlayerPresenter(
         return source is AnimeHttpSource && !EpisodeLoader.isDownloaded(currentEpisode, anime)
     }
 
-    fun nextEpisode() {
+    fun nextEpisode(callback: () -> Unit) {
         val anime = anime ?: return
         val source = sourceManager.getOrStub(anime.source)
 
@@ -200,6 +200,7 @@ class PlayerPresenter(
                         { activity, it ->
                             currentVideoList = it
                             activity.setVideoList(it)
+                            callback()
                         },
                         PlayerActivity::setInitialEpisodeError
                     )
@@ -209,7 +210,7 @@ class PlayerPresenter(
         }
     }
 
-    fun previousEpisode() {
+    fun previousEpisode(callback: () -> Unit) {
         val anime = anime ?: return
         val source = sourceManager.getOrStub(anime.source)
 
@@ -224,6 +225,7 @@ class PlayerPresenter(
                         { activity, it ->
                             currentVideoList = it
                             activity.setVideoList(it)
+                            callback()
                         },
                         PlayerActivity::setInitialEpisodeError
                     )

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

@@ -176,25 +176,25 @@
 
     </RelativeLayout>
 
-
     <RelativeLayout
         android:id="@+id/controls_bottom"
         android:layout_width="match_parent"
-        android:layout_height="match_parent">
+        android:layout_height="match_parent"
+        tools:visibility="visible">
 
         <ImageButton
-            android:id="@+id/playBtn"
+            android:id="@+id/play_btn"
             android:layout_width="100dp"
             android:layout_height="100dp"
             android:layout_centerInParent="true"
             android:background="?attr/selectableItemBackgroundBorderless"
             android:contentDescription="Play/Pause"
-            android:maxWidth="50dp"
-            android:maxHeight="50dp"
             android:onClick="playPause"
             android:textColor="@android:color/white"
+            android:visibility="gone"
             app:tint="?attr/colorOnPrimarySurface"
-            tools:src="@drawable/ic_play_arrow_100dp" />
+            tools:src="@drawable/ic_play_arrow_100dp"
+            tools:visibility="visible" />
 
 
         <LinearLayout
@@ -352,6 +352,15 @@
 
     </RelativeLayout>
 
+    <com.google.android.material.progressindicator.CircularProgressIndicator
+        android:id="@+id/loading_indicator"
+        android:layout_width="100dp"
+        android:layout_height="100dp"
+        android:layout_centerInParent="true"
+        android:indeterminate="true"
+        app:indicatorColor="?attr/colorAccent"
+        app:indicatorSize="65dp" />
+
 
     <TextView
         android:id="@+id/gestureTextView"