Android 屏幕双击事件的捕获简单示例

public class TouchLayout extends RelativeLayout {  
 
  public Handler doubleTapHandler = null;  
 
  protected long lastDown = -1;  
  public final static long DOUBLE_TIME = 500;  
 
  
 public TouchLayout(Context context) {  
    super(context);  
     
  }  
 
  public TouchLayout(Context context, AttributeSet attrs) {  
    super(context, attrs);  
     
  }  
 
  public TouchLayout(Context context, AttributeSet attrs, int defStyle) {  
    super(context, attrs, defStyle);  
     
  }  
 
    
  public boolean onTouchEvent(MotionEvent event) {  
     this.handleEvent(event);  
 
     if (event.getAction() == MotionEvent.ACTION_DOWN) {  
      long nowDown = System.currentTimeMillis();  
 
      if (nowDown - lastDown < DOUBLE_TIME)  
      {  
         if (doubleTapHandler != null)  
           doubleTapHandler.sendEmptyMessage(-1);  
 
      } else {  
        lastDown = nowDown;  
      }  
 
     }  
 
     return true;  
 
   }  
    
    
  protected void handleEvent(MotionEvent event) {  
 
    switch (event.getAction()) {  
    case MotionEvent.ACTION_DOWN:  
     //Do sth 这里处理即可  
      break;  
 
    case MotionEvent.ACTION_UP:  
      //Do sth  
      break;  
    }  
 
   }  
 
 
}