private void UpdateCells(int startIndex, int endIndex)
{
int length = _showGo.Count;
for (int i = length - 1; i >= 0; i--)
{
ScrollCellItem item = _showGo[i];
int index = item.GetIndex();
if (index >= startIndex && index <= endIndex)
{
continue;
}
_contains.Remove(index);
Push(item);
//Debug.Log("移除:" + index);
}
for (int i = startIndex; i <= endIndex; i++)
{
if (_contains.Contains(i))
{
continue;
}
ScrollCellItem item = Pop();
System.Object data = _datas[i];
item.SetPos(GetPos(i));
item.SetData(data, i);
_contains.Add(i);
//Debug.Log("添加:" + i);
}
}
private void Push(ScrollCellItem go)
{
_showGo.Remove(go);
_hideGo.Add(go);
go.transform.SetParent(_poolParent.transform);
go.Clear();
}
private ScrollCellItem Create()
{
GameObject unit = Instantiate(_prefabGo);
ScrollCellItem item = unit.GetComponent <ScrollCellItem>();
item.InitCreate();
RectTransform rect = unit.GetComponent <RectTransform>();
rect.pivot = new Vector2(0.5f, 0.5f);
rect.anchorMin = new Vector2(0.5f, 0.5f);
rect.anchorMax = new Vector2(0.5f, 0.5f);
return(item);
}
public void UpdateItemAt(int index, System.Object data)
{
_datas[index] = data;
int length = _showGo.Count;
for (int i = length - 1; i >= 0; i--)
{
ScrollCellItem item = _showGo[i];
int showIndex = item.GetIndex();
if (showIndex != index)
{
continue;
}
item.SetData(data, index);
}
}
private ScrollCellItem Pop()
{
ScrollCellItem reGo;
if (_hideGo.Count > 0)
{
ScrollCellItem go = _hideGo[0];
reGo = go;
_showGo.Add(go);
_hideGo.RemoveAt(0);
}
else
{
reGo = Create();
_showGo.Add(reGo);
}
reGo.transform.SetParent(_containerParent.transform);
return(reGo);
}