OnTouchListenner

gundong.setOnTouchListener(new View.OnTouchListener() {    @Override    public boolean onTouch(View v, MotionEvent event) {        switch (event.getAction()){            case MotionEvent.ACTION_DOWN:                gundong.setBackgroundColor(Color.parseColor("#778899"));                break;            case MotionEvent.ACTION_UP:                gundong.setBackgroundColor(Color.parseColor("#00000000"));                break;        }        return true;    }});