如何全屏播放YouTube视频，只需触摸播放按钮

Question

我的android stuido项目中有一个youtube视频视图。当我打开视频屏幕时，videoview会自动更改全屏模式。我只想在触摸播放按钮时以全屏播放视频。

这是我的代码

 public void setYoutube(final String youtube) {
    final YouTubePlayerView yotubevideo = (YouTubePlayerView) mView.findViewById(R.id.youtuber);

    onInitializedListener = new YouTubePlayer.OnInitializedListener() {
        @Override
        public void onInitializationSuccess(YouTubePlayer.Provider provider, YouTubePlayer youTubePlayer, boolean b) {
            youTubePlayer.cueVideo(youtube);
            youTubePlayer.setFullscreen(true);
        }


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

        }
    };

    yotubevideo.initialize(KEY,onInitializedListener);