自定义listview或者gridview解决在scrollvi

**
 * 自定义gridview，解决ListView中嵌套gridview显示不正常的问题（1行半） 
 * @author wangyx 
 * @version 1.0.0 2012-9-14 
 */  
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);   
        }   
}