public class sound extends Activity {
  MediaPlayer mp; 
  ImageButton playbtn;
  ImageButton stopbtn;  
  @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.sound);
        super.onCreate(savedInstanceState);         
  playbtn = (ImageButton) findViewById(R.id.btnsound8);
  stopbtn = (ImageButton) findViewById(R.id.stopButton);
  
  playbtn.setOnClickListener(new OnClickListener() {
   @Override
   public void onClick(View v) {

    mp = MediaPlayer.create(sound.this, R.raw.mrain2);
    mp.setLooping(true);
    mp.start();
   }
  });
  
  stopbtn.setOnClickListener(new OnClickListener() {
   @Override
   public void onClick(View v) {

    mp.stop();
   }
  });
    }
}

초보라서ㅠㅠ 도와주세요