Question

I’ve a problem with MediaPlayer.OnPreparedListener(). The Logcat keep saying that mOnPreparedListener is null. Failed to send MEDIA_PREPARED message. According to the MediaPlayer reference this code should work, but it’s not:

MediaPlayer mp = MediaPlayer.create(Settings.this, R.raw.play_samle);       
    mp.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
        // onPrepared() is never called
        public void onPrepared(MediaPlayer mp) {
           mp.start();
        }   

    });

Answer 1

To begin with, you should have :

MediaPlayer mp = MediaPlayer.create(Settings.this, R.raw.play_samle);  

your mp doesn’t do anything, as it contains nothing.