ScrollView内嵌ViewPager导致ViewPager滑动困难问题

秒速五厘米 2023-10-10 04:54 28阅读 0赞

转自:http://titanseason.iteye.com/blog/1858874

解决方式：重写ScrollView，然后在**xml中定义布局**的时候，使用**自定义的PagerScrollView**而不是系统的ScrollView即可。重点在于重写父类的**onInterceptTouchEvent**方法

import android.content.Context;    
import android.util.AttributeSet;    
import android.view.GestureDetector;    
import android.view.GestureDetector.SimpleOnGestureListener;    
import android.view.MotionEvent;    
import android.widget.ScrollView;    
  
public class PagerScrollView extends ScrollView \{    
  
    private GestureDetector mGestureDetector;    
  
    public PagerScrollView(Context context, AttributeSet attrs, int defStyle) \{    
        super(context, attrs, defStyle);    
        init();    
    \}    
  
    public PagerScrollView(Context context) \{    
        super(context);    
        init();    
    \}    
  
    public PagerScrollView(Context context, AttributeSet attrs) \{    
        super(context, attrs);    
        init();    
    \}    
  
    private void init() \{    
        mGestureDetector = new GestureDetector(getContext(),    
                new YScrollDetector());    
        setFadingEdgeLength(0);    
    \}    
  
    @Override    
    public boolean onInterceptTouchEvent(MotionEvent ev) \{    
        return super.onInterceptTouchEvent(ev)    
                && mGestureDetector.onTouchEvent(ev);    
    \}    
  
    private class YScrollDetector extends SimpleOnGestureListener \{    
        @Override    
        public boolean onScroll(MotionEvent e1, MotionEvent e2,    
                float distanceX, float distanceY) \{    
                
            if (Math.abs(distanceY) >= Math.abs(distanceX)) \{    
                return true;    
            \}    
            return false;    
        \}    
    \}    
\}

转载于:https://www.cnblogs.com/android-zcq/p/3182310.html