/// <summary>
/// 用该manager时都需要初始化
/// </summary>
/// <param name="baseCell">需要创建的cell的obj</param>
public void Init(BaseCell baseCell)
{
originCellObj = baseCell;
cellHeight += originCellObj.GetCellHeight() + spacing.y;
cellWidth += originCellObj.GetCellWidth() + spacing.x;
Vector3[] corners = new Vector3[4];
scrollRect.transform.GetComponent <RectTransform>().GetLocalCorners(corners);
viewHeight = corners[1].y + cellHeight;
startPos = new Vector3(cellWidth / 2, -cellHeight / 2);
if (cellHeight == 0 || cellWidth == 0)
{
Debug.LogError("cell宽或高不能为0");
}
}