Android --- ListView 与 子项中滑动冲突解决方案

public class MyListView extends ListView {

 private GestureDetector mGestureDetector;

 public MyListView(Context context) {
   super(context);
 }
 public MyListView(Context context, AttributeSet attrs) {
   super(context, attrs);
   mGestureDetector = new GestureDetector(new YScrollDetector());
   setFadingEdgeLength(0);
 }
 public MyListView(Context context, AttributeSet attrs, int defStyle) {
   super(context, attrs, defStyle);
 }
 @Override
 public boolean onInterceptTouchEvent(MotionEvent ev) {
   return super.onInterceptTouchEvent(ev) && mGestureDetector.onTouchEvent(ev);
 }
 class YScrollDetector extends SimpleOnGestureListener {
         @Override
         public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
    if(distanceY!=0&&distanceX!=0){
           
    }
             if(Math.abs(distanceY) >= Math.abs(distanceX)) {
                 return true;
             }
             return false;
         }
 }
 }