Android Warning：onTouch should call View#performClick when a click is detected

public boolean onTouch(View v, MotionEvent event) {
    switch (event.getAction()) {
    case MotionEvent.ACTION_DOWN:
        //some code....
        break;
    case MotionEvent.ACTION_UP:
        v.performClick();//這邊必須補上 否則會有此警告
        break;
    default:
        break;
    }
    return true;
}

參考答案：http://stackoverflow.com/questions/24952312/ontouchlistener-warning-ontouch-should-call-viewperformclick-when-a-click-is-d