ScrollView嵌套ListView

package com.irelint.stanleyagricultural.view;

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

public class ListViewForScroll extends ListView {

public ListViewForScroll(Context context) {
super(context);
// TODO Auto-generated constructor stub
}
public ListViewForScroll(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
}
public ListViewForScroll(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
// TODO Auto-generated constructor stub
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
// TODO Auto-generated method stub
int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE>>2, MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, expandSpec);

}
}