mMediaPlayer = new MediaPlayer();

mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);

mMediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {

    @Override

    public void onPrepared(MediaPlayer mp) {

        btPlayStop.setEnabled(true);

        int duration = mMediaPlayer.getDuration();

        sbMusicProcess.setMax(duration);

        mHandler.sendEmptyMessage(1);

        mMediaPlayer.start();

        btPlayStop.setChecked(PLAYING);

    }

});

try {

    mMediaPlayer.setDataSource(mp3url);

} catch (IOException e) {

    e.printStackTrace();

}

mMediaPlayer.prepareAsync();

mMediaPlayer.setOnBufferingUpdateListener(new MediaPlayer.OnBufferingUpdateListener() {

    @Override

    public void onBufferingUpdate(MediaPlayer mp, int percent) {

        runOnUiThread(new Runnable() {

            @Override

            public void run() {

                sbMusicProcess.setSecondaryProgress((sbMusicProcess.getMax() * process / 100));

            }

        });

    }

});

mMediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {

    @Override

    public void onCompletion(MediaPlayer mp) {

        mp.reset();

        btPlayStop.setChecked(READY);

    }

});