안드로이드 버튼 Up Down 시 이미지 변경하기.

btn_qrcode.setOnTouchListener(new View.OnTouchListener(){ public boolean onTouch(View v, MotionEvent event) { if(MotionEvent.ACTION_DOWN == event.getAction()) { btn_qrcode.setBackgroundResource(R.drawable.btn_qrcode_dark); } if(MotionEvent.ACTION_UP == event.getAction()) { btn_qrcode.setBackgroundResource(R.drawable.btn_qrcode); } return true; }});