重写了GridView的onMeasure方法，使其不会出现滚动条

package com.xfinder_logistics.view;
import android.content.Context;
import android.util.AttributeSet;
import android.widget.GridView;

public class MyGridView extends GridView{
    public MyGridView(Context context, AttributeSet attrs) {   
        super(context, attrs);   
    }   
  
    public MyGridView(Context context) {   
        super(context);   
    }   
  
    public MyGridView(Context context, AttributeSet attrs, int defStyle) {   
        super(context, attrs, defStyle);   
    }   
//该自定义控件只是重写了GridView的onMeasure方法，使其不会出现滚动条，ScrollView嵌套ListView也是同样的道理，不再赘述。    
    @Override   
    public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {   
        int expandSpec = MeasureSpec.makeMeasureSpec(   
                Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);   
        super.onMeasure(widthMeasureSpec, expandSpec);   
    }   

}