// get id from XML
        YoutubePlayerView youtubePlayerView = (YoutubePlayerView) findViewById(R.id.youtubePlayerView);
       
         // Control values
         // see more # https://developers.google.com/youtube/player_parameters?hl=en
        YTParams params = new YTParams();
        // params.setControls(0); // hide control
        // params.setVolume(100); // volume control
        // params.setPlaybackQuality(PlaybackQuality.small); // video quality control

        
         // initialize YoutubePlayerCallBackListener with Params and VideoID
        // youtubePlayerView.initialize("WCchr07kLPE", params, new YoutubePlayerView.YouTubeListener())

		// initialize YoutubePlayerCallBackListener with Params and Full Video URL
        // To Use - avoid UMG block!!!! but you'd better make own your server for your real service.
        // youtubePlayerView.initializeWithCustomURL("p1Zt47V3pPw" or "http://jaedong.net/youtube/p1Zt47V3pPw", params, new YoutubePlayerView.YouTubeListener())
        

       // make auto height of youtube. if you want to use 'wrap_content'
        youtubePlayerView.setAutoPlayerHeight(this);
        // initialize YoutubePlayerCallBackListener and VideoID
        youtubePlayerView.initialize("YOUTUBE_ID", new YoutubePlayerView.YouTubeListener() {

            @Override
            public void onReady() {
                // when player is ready.
            }

            @Override
            public void onStateChange(YoutubePlayerView.STATE state) {
                /**
                 * YoutubePlayerView.STATE
                 *
                 * UNSTARTED, ENDED, PLAYING, PAUSED, BUFFERING, CUED, NONE
                 *
                 */
            }

            @Override
            public void onPlaybackQualityChange(String arg) {
            }

            @Override
            public void onPlaybackRateChange(String arg) {
            }

            @Override
            public void onError(String error) {
            }

            @Override
            public void onApiChange(String arg) {
            }

            @Override
            public void onCurrentSecond(double second) {
                // currentTime callback
            }

            @Override
            public void onDuration(double duration) {
                // total duration
            }

            @Override
            public void logs(String log) {
                // javascript debug log. you don't need to use it.
            }
        });


        // psuse video
        youtubePlayerView.pause();
        // play video when it's ready
        youtubePlayerView.play();
        
    
    @Override
    protected void onPause() {
        super.onPause();
        // pause video when on the background mode.
        youtubePlayerView.pause();
    }
    
    @Override
    protected void onDestroy() {
        super.onDestroy();
        // this is optional but you need.
        youtubePlayerView.destroy();
    }