scrollview与viewpager冲突

/**
*
*/
package cn.juzhong.view.widget;

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

/**
* @author wanggenping
*
*/
public class CustomScrollView extends ScrollView{
// 滑动距离及坐标
private float xDistance, yDistance, xLast, yLast;

public CustomScrollView(Context context, AttributeSet attrs) {
super(context, attrs);
}

@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);
}

}