Android，ViewFlipper与手势检测器在Tabhost

Question

我想做一个tabhost，我想添加一个viewflipper一个活动。 此活动适用于tabhost。 我写过，但什么都行不通。有谁有个想法，我该怎么做？我希望他们明白我想要的。

我想在这个activitiy的GestureDetector的使用。我可以用按钮改变图片，但用手指我不能。

Answer 1

我以前做过。 （https://github.com/vancexu/AimTo/tree/master/src/com/hackingtrace/vancexu AimToActivity.java）
只是实现自己的GestureDetector，然后在选项卡活动注册OnTouchListener

顺便说一句，我也实现了幻灯片动画，在我TabHostActivity在TabHost

一些代码中使用ViewFlipper

private static final int SWIPE_MIN_DISTANCE = 180; 
private static final int SWIPE_MAX_OFF_PATH = 250; 
private static final int SWIPE_THRESHOLD_VELOCITY = 200; 
private GestureDetector gestureDetector; 
View.OnTouchListener gestureListener; 

public void onCreate(Bundle savedInstanceState) { 
    .... 
    gestureDetector = new GestureDetector(new MyGestureDetector()); 

    gestureListener = new View.OnTouchListener() { 
     public boolean onTouch(View v, MotionEvent event) { 
      if (gestureDetector.onTouchEvent(event)) { 
       return true; 
      } 
      return false; 
     } 
    }; 

class MyGestureDetector extends SimpleOnGestureListener { 
    @Override 
    public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, 
      float velocityY) { 
     TabHost tabHost = getTabHost(); 
     try { 
      if (Math.abs(e1.getY() - e2.getY()) > SWIPE_MAX_OFF_PATH) 
       return false; 
      // right to left swipe, tab change to right 
      if (e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE 
        && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) { 
       Log.i("Gesture ", "right"); 
       if (currentView == maxTabIndex) { 
        currentView = 0; 
       } else { 
        currentView++; 
       } 
       viewFlipperBody.setInAnimation(slideLeftIn); 
       viewFlipperBody.setOutAnimation(slideLeftOut); 
       viewFlipperBody.setDisplayedChild(currentView); 

      } else if (e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE 
        && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) { 
       Log.i("Gesture ", "left"); 
       if (currentView == 0) { 
        currentView = maxTabIndex; 
       } else { 
        currentView--; 
       } 
       viewFlipperBody.setInAnimation(slideRightIn); 
       viewFlipperBody.setOutAnimation(slideRightOut); 
       viewFlipperBody.setDisplayedChild(currentView); 
      } 
     } catch (Exception e) { 
      // nothing 
      e.printStackTrace(); 
     } 
     tabHost.setCurrentTab(currentView); 
     return false; 
    } 
} 

@Override 
public boolean dispatchTouchEvent(MotionEvent event) { 

    if (gestureDetector.onTouchEvent(event)) { 
     event.setAction(MotionEvent.ACTION_CANCEL); 
    } 
    return super.dispatchTouchEvent(event); 
}