//=================================
    @Override
    public boolean onTouch(View v, MotionEvent event) {
        switch(event.getAction()){
            case MotionEvent.ACTION_DOWN:
                addOverlay();
                animate().alpha(1).start();
                break;
            case MotionEvent.ACTION_UP:
                if((dwidth-event.getRawX())>((getWidth()*2)/3)){
                    openIt();
                }else{
                    closeIt();
                }
                break;
            default:
                if((dwidth-event.getRawX())>(startX+getWidth()))
                    return true;
                v.setX(event.getRawX());
                overlay.getBackground().setAlpha((int)((1-(event.getRawX()/dwidth))*MaxAlpha));
                break;
        }
        return true;
    }