fix: ensure view drop stop playback startup (TheWidlarzGroup#3875)

Author: KrzysztofMoch

android/src/main/java/com/brentvatne/exoplayer/ReactExoplayerView.java

@@ -258,6 +258,7 @@ public class ReactExoplayerView extends FrameLayout implements
     private long lastBufferDuration = -1;
     private long lastDuration = -1;
 
+    private boolean viewHasDropped = false;
     private void updateProgress() {
         if (player != null) {
             if (playerControlView != null && isPlayingAd() && controls) {
@@ -375,6 +376,8 @@ protected void onDetachedFromWindow() {
     public void cleanUpResources() {
         stopPlayback();
         themedReactContext.removeLifecycleEventListener(this);
+        releasePlayer();
+        viewHasDropped = true;
     }
 
     //BandwidthMeter.EventListener implementation
@@ -647,6 +650,9 @@ private void initializePlayer() {
         Activity activity = themedReactContext.getCurrentActivity();
         // This ensures all props have been settled, to avoid async racing conditions.
         mainRunnable = () -> {
+            if (viewHasDropped) {
+                return;
+            }
             try {
                 if (player == null) {
                     // Initialize core configuration and listeners
@@ -658,7 +664,9 @@ private void initializePlayer() {
                     ExecutorService es = Executors.newSingleThreadExecutor();
                     es.execute(() -> {
                         // DRM initialization must run on a different thread
-
+                        if (viewHasDropped) {
+                            return;
+                        }
                         if (activity == null) {
                             DebugLog.e(TAG, "Failed to initialize Player!, null activity");
                             eventEmitter.error("Failed to initialize Player!", new Exception("Current Activity is null!"), "1001");
@@ -667,12 +675,15 @@ private void initializePlayer() {
 
                         // Initialize handler to run on the main thread
                         activity.runOnUiThread(() -> {
+                            if (viewHasDropped) {
+                                return;
+                            }
                             try {
                                 // Source initialization must run on the main thread
                                 initializePlayerSource();
                             } catch (Exception ex) {
                                 self.playerNeedsSource = true;
-                                DebugLog.e(TAG, "Failed to initialize Player!");
+                                DebugLog.e(TAG, "Failed to initialize Player! 1");
                                 DebugLog.e(TAG, ex.toString());
                                 ex.printStackTrace();
                                 self.eventEmitter.error(ex.toString(), ex, "1001");
@@ -684,7 +695,7 @@ private void initializePlayer() {
                 }
             } catch (Exception ex) {
                 self.playerNeedsSource = true;
-                DebugLog.e(TAG, "Failed to initialize Player!");
+                DebugLog.e(TAG, "Failed to initialize Player! 2");
                 DebugLog.e(TAG, ex.toString());
                 ex.printStackTrace();
                 eventEmitter.error(ex.toString(), ex, "1001");

ios/Video/NowPlayingInfoCenterManager.swift

@@ -61,11 +61,11 @@ class NowPlayingInfoCenterManager {
             return
         }
 
-        if let observer = observers[players.hashValue] {
+        if let observer = observers[player.hashValue] {
             observer.invalidate()
         }
 
-        observers.removeValue(forKey: players.hashValue)
+        observers.removeValue(forKey: player.hashValue)
         players.remove(player)
 
         if currentPlayer == player {

ios/Video/RCTVideo.swift

@@ -1241,17 +1241,27 @@ class RCTVideo: UIView, RCTVideoPlayerViewControllerDelegate, RCTPlayerObserverH
     // MARK: - Lifecycle
 
     override func removeFromSuperview() {
+        self._player?.replaceCurrentItem(with: nil)
         if let player = _player {
             player.pause()
             NowPlayingInfoCenterManager.shared.removePlayer(player: player)
         }
+        _playerItem = nil
+        _source = nil
+        _chapters = nil
+        _drm = nil
+        _textTracks = nil
+        _selectedTextTrackCriteria = nil
+        _selectedAudioTrackCriteria = nil
+        _presentingViewController = nil
 
         _player = nil
         _resouceLoaderDelegate = nil
         _playerObserver.clearPlayer()
 
         #if USE_GOOGLE_IMA
             _imaAdsManager.releaseAds()
+            _imaAdsManager = nil
         #endif
 
         self.removePlayerLayer()