ListCellView ActiveCell(int index)
{
ListCellView cellView;
if (m_UnuseCells.Count <= 0)
{
ListCellView cellView_ = DynamicCell().GetComponent <ListCellView>();
cellView_.InitView();
m_UnuseCells.Add(cellView_);
}
cellView = m_UnuseCells[0];
cellView.index = index;
m_UnuseCells.Remove(cellView);
//if (m_VisiableCells.IndexOf(cellView) == -1)
{
m_VisiableCells.Add(cellView);
}
Vector3 pos = Vector3.zero;
switch (m_Orientation)
{
case ListViewOrientation.Horizontal:
pos = new Vector3(1, 0, 0);
break;
case ListViewOrientation.Vertical:
pos = new Vector3(0, -1, 0);
break;
}
float d = m_CellOffset + index * (m_CellSize + m_CellSpacing);
cellView.transform.localPosition = pos * d;
cellView.gameObject.SetActive(true);
return(cellView);
}
private void Awake()
{
m_ListRect = GetComponent <RectTransform>();
Transform cells = transform.Find("Cells");
m_Cells = cells;
m_ListCellsRect = cells.GetComponent <RectTransform>();
ListCellView[] cellViews = cells.GetComponentsInChildren <ListCellView>();
m_DynamicCell = cellViews[0].gameObject;
m_DynamicCellRect = m_DynamicCell.GetComponent <RectTransform>();
int needCellNum = ComputeVisiableNum();
for (int i = 0; i < cellViews.Length; i++)
{
cellViews[i].gameObject.SetActive(false);
cellViews[i].Init(this);
cellViews[i].InitView();
m_UnuseCells.Add(cellViews[i]);
}
for (int i = 0; i < needCellNum - cellViews.Length; i++)
{
ListCellView cellView = DynamicCell().GetComponent <ListCellView>();
cellView.Init(this);
cellView.InitView();
m_UnuseCells.Add(cellView);
}
Assembly assembly = Assembly.GetExecutingAssembly();
m_object = assembly.CreateInstance(viewName);
m_objectType = Type.GetType(viewName);
InitView();
}
void DeactiveCell(ListCellView cellView)
{
cellView.index = -1;
m_VisiableCells.Remove(cellView);
cellView.CloseView();
cellView.gameObject.SetActive(false);
//if (m_UnuseCells.IndexOf(cellView) == -1)
{
m_UnuseCells.Add(cellView);
}
}
void UpdateList(bool forceUpdateCells = false)
{
UpdateCellsRect();
int pos = ComputeCurrentPosition();
pos--;
if (pos < 0)
{
pos = 0;
}
int num = ComputeVisiableNum();
float offset = m_StartPadding + pos * (m_CellSize + m_CellSpacing);
float cellPos = 0;
if (pos != m_LastPosition || num != m_LastVisiableNum || forceUpdateCells)
{
ListCellView[] cells = new ListCellView[num];
List <ListCellView> unuse = new List <ListCellView>();
for (int i = 0; i < m_VisiableCells.Count; i++)
{
ListCellView cellView = m_VisiableCells[i];
int p = cellView.index - pos;
if (cellView.index > -1 && cellView.index < m_DataSize && p > -1 && p < cells.Length)
{
cells[p] = cellView;
}
else
{
unuse.Add(cellView);
}
}
for (int i = 0; i < unuse.Count; i++)
{
DeactiveCell(unuse[i]);
}
for (int i = 0; i < cells.Length; i++)
{
if (pos + i >= 0 && pos + i < m_DataSize && cells[i] == null)
{
cells[i] = ActiveCell(pos + i);
cells[i].DrawCell(handle, cells[i].index);
}
else if (cells[i] != null)
{
if (forceUpdateCells)
{
cells[i].DrawCell(handle, cells[i].index);
}
}
}
}
m_LastPosition = pos;
m_LastVisiableNum = num;
}
