Android中ScrollView嵌套GridView，解决GridView显示不全的问题

/**
 * 自定义gridview，解决ScrollView中嵌套gridview显示不正常的问题（1行半）
 *
 */
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);
	    }
}