Android_多点触控-创新互联

 1         @Override
 2 public boolean onTouchEvent(MotionEvent event) {
 3          
 4  switch (event.getAction()&MotionEvent.ACTION_MASK) {
 5  case MotionEvent.ACTION_DOWN:
 6              Log.e(TAG, "按下了");
 7   break;
 8  case MotionEvent.ACTION_POINTER_UP:
 9              isZoom=false;
10              Log.e(TAG, "什么时间触发的");
11   break;
12  case MotionEvent.ACTION_POINTER_DOWN:
13              isZoom=true;
14              Log.e(TAG, "是我第二个点吗？");
15   break;
16  case MotionEvent.ACTION_MOVE:
17   if(isZoom){
18                  Log.e(TAG, "多点触控");
19              }else{
20                  Log.e(TAG, "单点触控？");
21              }
22     
23   break;
24 
25  default:
26   break;
27          }
28          
29          
30  return super.onTouchEvent(event);
31         }