看代码学Android ：如何处理Touch？

zdwang

1. public class test2 extends Activity implements OnTouchListener, OnClickListener{
   
2.     /** Called when the activity is first created. */
   
3.     
   
4.     GestureDetector mGestureDetector;
   
5.     @Override
   
6.     public void onCreate(Bundle savedInstanceState) {
   
7.         super.onCreate(savedInstanceState);
   
8.         setContentView(R.layout.main);
   
9.         
   
10.         Button btn = (Button)this.findViewById(R.id.button1);
    
11.         btn.setOnTouchListener(this);
    
12.         btn.setOnClickListener(this);
    
13.        
    
14.         //创建一个手势dectector
    
15.         mGestureDetector = new GestureDetector(this, new CalendarGestureListener());
    
16.     }
    
17. 
    
18.     @Override
    
19.     public boolean onTouch(View v, MotionEvent event) {
    
20.         if (mGestureDetector.onTouchEvent(event)) {
    
21.             return true;
    
22.         }
    
23.         return super.onTouchEvent(event);
    
24.     }
    
25.     
    
26.     
    
27.      class CalendarGestureListener extends GestureDetector.SimpleOnGestureListener {
    
28. 
    
29.         /* (non-Javadoc)
    
30.          * @see android.view.GestureDetector.SimpleOnGestureListener#onFling(android.view.MotionEvent, android.view.MotionEvent, float, float)
    
31.          */
    
32.         @Override
    
33.         public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
    
34.                 float velocityY) {
    
35.             Log.v("touch", "x=" + Float.toString(e1.getX()) + " x2=" + Float.toString(e2.getX()) );
    
36.             // TODO Auto-generated method stub
    
37.             return super.onFling(e1, e2, velocityX, velocityY);
    
38.         }
39.      }
    
40. 
    
41. 
    
42.     @Override
    
43.     public void onClick(View arg0) {
    
44.         // TODO Auto-generated method stub
    
45.         Log.v("touch", "Hello, Click Me" );
    
46. 
    
47.     }
    
48. }