计算分页数据的算法

    private void SetPagePageData()
    {
        if (curPageIndex == LastPageIndex)//假如这是最后一页
        {
            startIndex =(curPageIndex - 1) * PageMaxNum;
            curPageRoomNum = TotalNum - (curPageIndex-1) * PageMaxNum;
        }
        else if (curPageIndex > 1 && curPageIndex < LastPageIndex)//假如这既不是第一页也不是最后一页
        {
            startIndex =(curPageIndex - 1) * PageMaxNum;
            curPageRoomNum = PageMaxNum;
        }
        else if (curPageIndex == 1 && TotalNum > PageMaxNum)//假如这是第一页，而且总房间数大于页面最大房间数
        {
            startIndex = 0;
            curPageRoomNum = PageMaxNum;
        }
        else if (curPageIndex == 1 && TotalNum < PageMaxNum)//假如这是第一页，而且总房间数小于页面最大房间数
        {
            startIndex = 0;
            curPageRoomNum = TotalNum;
        }
    }

　　

    private void RefreshPageState()
    {
        for (int i = 0; i < PageMaxNum; i++)
        {
            if (i < curPageRoomNum)
            { 
                item[i].SetActive(true);
                item[i].Init(data[startIndex+i]);
            }
            else
            {
                item[i].SetActive(false);
            }
        }
    }