viewpager与liisview的手势分发

package com.example.aifanggou.utils;


import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.widget.ListView;


public class Mylistview extends ListView {


private float xDistance, yDistance, xLast, yLast;


public Mylistview(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
}




@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {


switch (ev.getAction()) {
case MotionEvent.ACTION_DOWN:
xDistance = yDistance = 0f;
xLast = ev.getX();
yLast = ev.getY();
break;
case MotionEvent.ACTION_MOVE:
final float curX = ev.getX();
final float curY = ev.getY();


xDistance += Math.abs(curX - xLast);
yDistance += Math.abs(curY - yLast);
xLast = curX;
yLast = curY;


if (xDistance > yDistance) {
return false;   
}
}


return super.onInterceptTouchEvent(ev);
}
}