Android Youtube API 按下后退按钮时退出全屏

Android Youtube API exit the Fullscreen when pressed the back button

当视频在 Fullscreen.i 上播放时想要按下后退按钮可以退出全屏,我已经尝试 overrride onbackPress onKeydown 但不是work.please帮助我

@Override
public void onInitializationSuccess(YouTubePlayer.Provider provider, YouTubePlayer youTubePlayer, boolean b) {
    System.out.println("here");
    youTubePlayer.setPlayerStateChangeListener(playerStateChangeListener);
    youTubePlayer.setPlaybackEventListener(playbackeventlistener);
    youTubePlayer.setOnFullscreenListener(onFullscreenListener);
    you = youTubePlayer;

    if (b) {

         youTubePlayer.cueVideo(Video_id);

    }}


    youTubePlayer.setShowFullscreenButton(false);
    youTubePlayer.setManageAudioFocus(false);
    youTubePlayer.setFullscreen(true);
    youTubePlayer.setPlayerStyle(YouTubePlayer.PlayerStyle.MINIMAL);

}

  @Override
public void onBackPressed() {
    super.onBackPressed();
    if (isFullscreen.equals(true)){
        you.setFullscreenControlFlags(0);
        isFullscreen = false;
        you.setFullscreen(false);


    }else {
        super.onBackPressed();
    }
}

}

你能试试这个吗?

@Override
public void onBackPressed() {
    if (isFullscreen.equals(true)){
        isFullscreen = false;
        you.setFullscreen(false);
    }else {
        super.onBackPressed();
    }
}