YouTubePlayerFragment堆栈 [英] YouTubePlayerFragment backstack

问题描述

我想在带Backstack的活动中使用YouTubePlayerFragment.因此，当我按后退按钮时，片段消失了，以后进行某些操作时(例如单击按钮)又出现了另一个视频.这是我的代码

I want to use YouTubePlayerFragment in my activity with backstack. So when I press back button fragment disappears and on some action in future (button click for example) appears again with another video. Here's my code

public class YouTubeTestActivity extends Activity implements YouTubePlayer.OnInitializedListener {

@OnClick(R.id.button)
public void click(){
    init();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.test);
    ButterKnife.inject(this);

    init();

}

private void init() {

    YouTubePlayerFragment f = YouTubePlayerFragment.newInstance();
    f.initialize(DeveloperKey.KEY, this);
    getFragmentManager().beginTransaction().addToBackStack(null).replace(R.id.frame,f).commit();
}

@Override
public void onInitializationSuccess(YouTubePlayer.Provider provider, YouTubePlayer youTubePlayer, boolean b) {
   youTubePlayer.loadVideo("O4sXdktFDEM");
}

@Override
public void onInitializationFailure(YouTubePlayer.Provider provider, YouTubeInitializationResult youTubeInitializationResult) {
    Toasts.fromText(this, "ERROR");
}

}

在该片段初始化后，当我回击并单击按钮时，我看到了拇指，但视频无法播放，只有无限的旋转进度和logcat中的混淆错误:

When i hit back and click button after that fragment initialized, i see thumb, but video doesn't play, only infinite spinning progress and obfuscated errors in logcat:

    11-04 16:30:52.597 8530-8530/? W/MessageQueue: Handler (android.os.Handler) {d856ff1} sending message to a Handler on a dead thread
11-04 16:30:52.597 8530-8530/? W/MessageQueue: java.lang.IllegalStateException: Handler (android.os.Handler) {d856ff1} sending message to a Handler on a dead thread
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at android.os.MessageQueue.enqueueMessage(MessageQueue.java:543)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at android.os.Handler.enqueueMessage(Handler.java:631)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at android.os.Handler.sendMessageAtTime(Handler.java:600)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at android.os.Handler.sendMessageDelayed(Handler.java:570)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at android.os.Handler.sendEmptyMessageDelayed(Handler.java:534)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at android.os.Handler.sendEmptyMessage(Handler.java:519)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at ken.a(SourceFile:792)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at kei.g(SourceFile:554)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at keq.g(SourceFile:146)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at lcu.c(SourceFile:488)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at lwr.b(SourceFile:245)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at lwy.b(SourceFile:148)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at ldd.a(SourceFile:694)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at alm.a(SourceFile:267)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at alm.b(SourceFile:287)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at auc.run(SourceFile:209)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at android.os.Handler.handleCallback(Handler.java:739)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at android.os.Handler.dispatchMessage(Handler.java:95)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at android.os.Looper.loop(Looper.java:148)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at android.app.ActivityThread.main(ActivityThread.java:5417)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at java.lang.reflect.Method.invoke(Native Method)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
11-04 16:30:52.597 8530-8530/? W/MessageQueue:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

似乎在按反发行版YouTubePlayer时存在一些问题. 也许我做错了什么?

It seems there is some problem with YouTubePlayer release on back press. Maybe I'm doing something wrong?

我找到了解决方法:我将onInitializationSuccess中的YouTubePlayer实例存储在我的Activity中，并在新的Fragment初始化之前调用release()，之后一切正常，并且在log cat中没有错误.

I've found workaround: I'm storing YouTubePlayer instance from onInitializationSuccess in my Activity and call release() on it before new Fragment initialization and after that all goes right and there is no errors in log cat.

推荐答案

我已经扩展了YouTubePlayerSupportFragment以存储播放器实例，并在onDestroyView中正确释放它

I've extend YouTubePlayerSupportFragment to store player instance and correctly release it in onDestroyView

public class YouTubePlayerFragment2 extends YouTubePlayerSupportFragment {
        private YouTubePlayer mPlayer;



        public static YouTubePlayerFragment2 newInstance(){
            return new YouTubePlayerFragment2();
        }

        @Override
        public void initialize(String s, YouTubePlayer.OnInitializedListener onInitializedListener) {
            YouTubePlayer.OnInitializedListener listener = new YouTubePlayer.OnInitializedListener() {
                @Override
                public void onInitializationSuccess(YouTubePlayer.Provider provider, YouTubePlayer youTubePlayer, boolean b) {
                    onInitializedListener.onInitializationSuccess(provider, youTubePlayer, b);
                    mPlayer = youTubePlayer;
                    mPlayer.setShowFullscreenButton(false);
                }

                @Override
                public void onInitializationFailure(YouTubePlayer.Provider provider, YouTubeInitializationResult youTubeInitializationResult) {
                    onInitializedListener.onInitializationFailure(provider, youTubeInitializationResult);
                }
            };
            super.initialize(s, listener);
        }

        @Override
        public void onDestroyView() {
            if(mPlayer!=null) {

                mPlayer.release();
            }
            super.onDestroyView();
        }
    }

这篇关于YouTubePlayerFragment堆栈的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！