Gridview不会自动撑开

package com.etwod.cang.util;


import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View.MeasureSpec;
import android.widget.GridView;


public class Gridview extends GridView{
    public Gridview(Context context) {
     
        super(context);


  }


  public Gridview(Context context, AttributeSet attrs) {


        super(context, attrs);


  }




  public Gridview(Context context, AttributeSet attrs, int  defStyle) {


       super(context, attrs, defStyle);


  }


@Override 
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 
int expandSpec = MeasureSpec.makeMeasureSpec(  
Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);  


super.onMeasure(widthMeasureSpec, expandSpec); 
} 


}