SuperPlayerView添加resetPlayer释放播放器，避免FlutterPlatformView内存泄露问题

Flutter/android/src/main/java/com/example/super_player/SuperPlatformPlayerView.java

@@ -159,7 +159,10 @@ public class SuperPlatformPlayerView implements PlatformView, MethodChannel.Meth
             Boolean enable = call.argument("loop");
             setLoop(enable);
             result.success(null);
-        } else {
+        } else if(call.method.equals("resetPlayer")){
+            destory();
+            result.success(null);
+        }else {
             result.notImplemented();
         }
     }
@@ -265,4 +268,11 @@ public class SuperPlatformPlayerView implements PlatformView, MethodChannel.Meth
         return param;
     }
 
+    private void destory() {
+        mSuperPlayerView.resetPlayer();
+        mSuperPlayerView = null;
+        mMethodChannel.setMethodCallHandler(null);
+        mEventChannel.setStreamHandler(null);
+    }
+
 }

Flutter/example/lib/test_superplayer.dart

@@ -44,6 +44,12 @@ class _TestSuperPlayerState extends State<TestSuperPlayer> {
     debugPrint("= initState = ${window.padding.top}, ${window.physicalSize.width}");
   }
 
+  @override
+  void dispose() {
+    _playerController.resetPlayer();
+    super.dispose();
+  }
+
   void onPressed(BuildContext context) {
     showDialog(
         context: context,

Flutter/ios/Classes/SuperPlatformPlayerView.m

@@ -102,9 +102,18 @@
 }
 
 - (void)dealloc
+{
+    [self destory];
+}
+
+- (void)destory
 {
     [_realPlayerView resetPlayer];
-    
+    [_eventChannel setStreamHandler:nil];
+    _realPlayerView = nil;
+    _eventChannel = nil;
+    _methodChannel = nil;
+    _eventSink = nil;
 }
 
 - (void)reloadView:(NSString *)url appId:(long)appId fileId:(NSString *)fileId psign:(NSString *)psign
@@ -243,6 +252,9 @@
         BOOL loop = [args[@"loop"] boolValue];
         [self setLoop:loop];
         result(nil);
+    }else if ([@"resetPlayer" isEqualToString:call.method]) {
+        [self destory];
+        result(nil);
     }else {
         result(FlutterMethodNotImplemented);
     }

Flutter/lib/Core/superplayerview_controller.dart

@@ -58,4 +58,8 @@ class SuperPlayerPlatformViewController {
     await _channel.invokeMethod("setLoop", {"loop": loop});
   }
 
+  Future<void> resetPlayer() async {
+    await _channel.invokeMethod("resetPlayer");
+  }
+
 }
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