boolean ret = false;
int act = ev.getAction();
if (act == MotionEvent.ACTION_DOWN) {
mRender.onActionDown((int)ev.getX(), (int)ev.getY());
ret = true;
} else if (act == MotionEvent.ACTION_MOVE) {
mRender.onActionMove((int)ev.getX(), (int)ev.getY());
ret = true;
}
return ret;