Continue playing a sound when pressed down in android studio

I have a sound with 4 duration. I want to play continuously this sound by pressing down without stopping it, like piano keys when you pressing down, it plays a sound without looping or stopping.

c.setOnTouchListener(new View.OnTouchListener() {
                        @Override
                        public boolean onTouch(View v, MotionEvent event) {
                            switch (event.getAction()) {
                                case MotionEvent.ACTION_DOWN: // Button Pressed
                          soundPool.stop(SID1_c);                                        
                         SID1_c = soundPool.play(sound_c, 1, 1, 1, 0, 0);
                                c.setBackgroundResource(R.drawable.key4);
                                   return true;
                                case MotionEvent.ACTION_UP:// Button released

                                    handler =new Handler();
                                    handler.postDelayed(new Runnable() {
                                        @Override
                                        public void run() {
                                            soundPool.stop(SID1_c);
                                        }
                                    },90);

                                    return false;

                            }
                            return false;
                        }
                    });

button.setOnTouchListener(new View.OnTouchListener(){
  onTouch(View v, MotionEvent event){
     switch(getActionMasked()){
       case ACTION_BUTTON_PRESS:
        handler.removeCallbacksAndMessages(null);
        soundPool.stop(SID1_c);                                        
        SID1_c = soundPool.play(sound_c, 1, 1, 1, 0, 0);
        c.setBackgroundResource(R.drawable.key4);
        return true;

       case ACTION_BUTTON_RELEASE:
       handler.postDelayed(new Runnable() {
                                    @Override
                                    public void run() {
                                        soundPool.stop(SID1_c);
                                    }
                                },90);
       return false;
     }
     return false;
  }
});

your code problem: if you tap button two times when you start post delayed for stopping sound for first button up this stopping will hit second press not the first one which has been stopped before to correct this you should exit handler when you play the sound you can use handler.removeCallbacksAndMessages(null); when a new press is done