private void SetPostion(TableViewItem item)
{
var index = item.Index;
if (index >= 0)
{
RectTransform cellRectTrans = item.gameObject.GetComponent <RectTransform>();
switch (arrangement)
{
case TableView.Arrangement.Vertical:
//float pivotX = maxPerLine == 1 ? 0.5f : 1.0f; //多行多列时候向左靠齐
cellRectTrans.anchorMin = new Vector2(0.5f, 1f);
cellRectTrans.anchorMax = new Vector2(0.5f, 1f);
cellRectTrans.pivot = new Vector2(0.5f, 1f);
break;
case TableView.Arrangement.Horizontal:
cellRectTrans.anchorMin = new Vector2(0f, 0.5f);
cellRectTrans.anchorMax = new Vector2(0f, 0.5f);
cellRectTrans.pivot = new Vector2(0f, 0.5f);
break;
}
cellRectTrans.localPosition = GetLocalPositionByIndex(index);
//cellRectTrans.anchoredPosition3D
if (SetItemCall != null)
{
item.gameObject.name = (index < 10) ? ("0" + index) : ("" + index);
SetItemCall(item.gameObject, index);
}
}
}
/// <summary>
/// 添加当前数据索引数据
/// </summary>
/// <param name="dataIndex">下标，从0开始</param>
public void AddItem(int dataIndex)
{
if (dataIndex < 0 || dataIndex > dataCount)
{
return;
}
//检测是否需添加gameObject
bool isNeedAdd = false;
for (int i = listItem.Count - 1; i >= 0; i--)
{
TableViewItem item = listItem[i];
if (item.Index >= (dataCount - 1))
{
isNeedAdd = true;
break;
}
}
SetDataCount(dataCount + 1);
if (isNeedAdd)
{
for (int i = 0; i < listItem.Count; i++)
{
TableViewItem item = listItem[i];
int oldIndex = item.Index;
if (oldIndex >= dataIndex)
{
item.Index = oldIndex + 1;
item.Updata(_dataProvider[item.Index]);
}
item = null;
}
SetUpdateRectItem(GetCurScrollPerLineIndex());
}
else
{
//重新刷新数据
for (int i = 0; i < listItem.Count; i++)
{
TableViewItem item = listItem[i];
int oldIndex = item.Index;
if (oldIndex >= dataIndex)
{
item.Index = oldIndex;
item.Updata(_dataProvider[item.Index]);
}
item = null;
}
}
}
/// <summary>
/// 重设列表
/// </summary>
/// <param name="dataCount">列表长度</param>
public void ReLoad(int dataCount)
{
//移除
for (int i = listItem.Count - 1; i >= 0; i--)
{
TableViewItem item = listItem[i];
listItem.Remove(item);
GameObject.Destroy(item.gameObject);
}
SetDataCount(dataCount);
unUseItem.Clear();
SetUpdateRectItem(0);
StartCoroutine(StartContinue());
}
/// <summary>
/// 删除当前数据索引下数据
/// </summary>
/// <param name="dataIndex">索引下标，从0开始</param>
public void DelItem(int dataIndex)
{
if (dataIndex < 0 || dataIndex >= dataCount)
{
return;
}
//删除item逻辑三种情况
//1.只更新数据，不销毁gameObject,也不移除gameobject
//2.更新数据，且移除gameObject,不销毁gameObject
//3.更新数据，销毁gameObject
bool isNeedDestroyGameObject = (listItem.Count >= dataCount);
SetDataCount(dataCount - 1);
for (int i = listItem.Count - 1; i >= 0; i--)
{
TableViewItem item = listItem[i];
int oldIndex = item.Index;
if (oldIndex == dataIndex)
{
listItem.Remove(item);
if (isNeedDestroyGameObject)
{
GameObject.Destroy(item.gameObject);
}
else
{
item.Index = -1;
item.Updata(null);
unUseItem.Enqueue(item);
}
}
if (oldIndex > dataIndex)
{
item.Index = oldIndex - 1;
item.Updata(_dataProvider[item.Index]);
}
}
SetUpdateRectItem(GetCurScrollPerLineIndex());
}
/// <summary>
/// 设置更新区域内item, 1.隐藏区域之外对象, 2.更新区域内数据
/// </summary>
/// <param name="scrollPerLineIndex">当前滑动到的下标</param>
private void SetUpdateRectItem(int scrollPerLineIndex)
{
if (scrollPerLineIndex < 0)
{
return;
}
curScrollPerLineIndex = scrollPerLineIndex;
int startDataIndex = curScrollPerLineIndex * maxPerLine;
int endDataIndex = (curScrollPerLineIndex + viewCount) * maxPerLine;
//移除
for (int i = listItem.Count - 1; i >= 0; i--)
{
TableViewItem item = listItem[i];
int index = item.Index;
if (index < startDataIndex || index >= endDataIndex)
{
item.Index = -1;
item.Updata(null);
unUseItem.Enqueue(item);
listItem.Remove(item);
}
}
//显示
for (int dataIndex = startDataIndex; dataIndex < endDataIndex; dataIndex++)
{
if (dataIndex >= dataCount)
{
continue;
}
if (IsExistDataByDataIndex(dataIndex))
{
continue;
}
CreateItem(dataIndex);
}
}
/// <summary>
/// 获取所在的下标
/// </summary>
/// <param name="itemObj">对象</param>
/// <returns></returns>
public int IndexOf(GameObject itemObj)
{
TableViewItem item = itemObj.gameObject.GetComponent <TableViewItem>();
return(listItem.IndexOf(item));
}
