listview重新计算高度

将xml中的ListView改用下面的ListViewForScrollView

//ScrollView中嵌入ListView,让ListView全显示出来
public class ListViewForScrollView extends ListView{

    public ListViewForScrollView(android.content.Context context,android.util.AttributeSet attrs){
    super(context, attrs);
}

//设置不滚动
    public void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
        {
            int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,
            MeasureSpec.AT_MOST);
            super.onMeasure(widthMeasureSpec, expandSpec);
    }
}