分析京东“搜索京东商品/店铺”布局（二）

接着前面一篇文章，ScrollView嵌套了HorizontalScrollView和ListView，

这里如何处理ScrollView和HorizontalScrollView冲突的问题呢？

Android - HorizontalScrollView within ScrollView Touch Handling

http://*.com/questions/2646028/android-horizontalscrollview-within-scrollview-touch-handling?lq=1

public class CustomScrollView extends ScrollView {
    private GestureDetector mGestureDetector;

    public CustomScrollView(Context context, AttributeSet attrs) {
        super(context, attrs);
        mGestureDetector = new GestureDetector(context, new YScrollDetector());
        setFadingEdgeLength(0);
    }

    @Override
    public boolean onInterceptTouchEvent(MotionEvent ev) {
        return super.onInterceptTouchEvent(ev) && mGestureDetector.onTouchEvent(ev);
    }

    // Return false if we're scrolling in the x direction  
    class YScrollDetector extends SimpleOnGestureListener {
        @Override
        public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {             
            return Math.abs(distanceY) > Math.abs(distanceX);
        }
    }
}

这样子实现就可以了。