只響應DOWN，其他沒有，我就是按照著老師的來的，不知道怎么回事，以前也遇到過

????findViewById(R.id.ll_circleview_root).setOnTouchListener(new?View.OnTouchListener()?{
???@Override
???public?boolean?onTouch(View?v,?MotionEvent?event)?{
???????int?action?=?event.getActionMasked();
???????Logger.e("action?=?"?+?action);
???????switch?(action)?{
???????????case?MotionEvent.ACTION_DOWN:
???????????????break;
???????????case?MotionEvent.ACTION_MOVE:
???????????????break;
???????????default:
???????????????break;
???????}
???????return?false;
???}
});