无法在youtubeplayerview android中旋转视图

我和youtubeplayerview有个活动。为什么我点击视图上的全屏按钮，视频不会旋转，而是显示空白屏幕

我的代码如下：

youtube = (YouTubePlayerView)findViewById(R.id.youtube_view1);
    youtube.initialize("APP_ID",this);
public void onInitializationSuccess(YouTubePlayer.Provider provider, final YouTubePlayer youTubePlayer, boolean b) {

    if (!b) {

        if(deeplink == false) {
            youTubePlayer.loadVideo(youtube_ID);

        }
        else
        {
            youTubePlayer.loadVideo(youtube_ID_deeplink);
        }
    }

}

@Override
public void onInitializationFailure(YouTubePlayer.Provider provider, YouTubeInitializationResult youTubeInitializationResult) {

}

---

我无法理解我错在哪里。请建议。

在活动标签内的清单文件中添加

android:configChanges="keyboardHidden|orientation|screenSize"

像这样

<activity 
android:label="ActivityName" 
android:configChanges="keyboardHidden|orientation|screenSize"
android:name="com.example.app.ActivityName" /> 

试试这个代码片段

youTubePlayerSupportFragment.initialize(API_KEY, new YouTubePlayer.OnInitializedListener() {
                            @Override
                            public void onInitializationSuccess(YouTubePlayer.Provider provider, YouTubePlayer youTubePlayer, boolean b) {
                                youTubePlayer.addFullscreenControlFlag(YouTubePlayer.FULLSCREEN_FLAG_ALWAYS_FULLSCREEN_IN_LANDSCAPE);                                    
                                youTubePlayer.loadVideo(Uri.parse(mVideosList.get(position).getLink()));
                            }

                            @Override
                            public void onInitializationFailure(YouTubePlayer.Provider provider,
                                                                YouTubeInitializationResult youTubeInitializationResult) {
                                System.out.println("onInitializationFailure");
                            }
                        });

---

你能给出整个活动代码吗。