fix pip bug

Flutter/ios/Classes/FTXVodPlayer.m

@@ -729,16 +729,16 @@ BOOL volatile isStop = false;
         } else {
             dispatch_async(dispatch_get_main_queue(), ^{
                 if ([UIApplication sharedApplication].applicationState == UIApplicationStateActive) {
-                    [self->_txVodPlayer resume];
+                    [player exitPictureInPicture];
                 }
-                [player removeVideoWidget];
                 [self->_txPipView removeFromSuperview];
                 self->_txPipView = nil;
-            });
-        }
+                
                 if (self.delegate && [self.delegate respondsToSelector:@selector(onPlayerPipStateDidStop)]) {
                     [self.delegate onPlayerPipStateDidStop];
                 }
+            });
+        }
     }
     
     if (pipState == TX_VOD_PLAYER_PIP_STATE_RESTORE_UI) {