gridView在scrollview中显示不全的问题

activity_main.xml

MyGridView.java

package com.example.androidtest2;

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

...........
其他的就不写出来了.......