/// <summary>
/// Recycles one cell view
/// </summary>
/// <param name="cellView"></param>
private void _RecycleCell(EnhancedScrollerCellView cellView)
{
// remove the cell view from the active list
_activeCellViews.Remove(cellView);
// add the cell view to the recycled list
_recycledCellViews.Add(cellView);
// move the GameObject to the recycled container
cellView.transform.SetParent(_recycledCellViewContainer, false);
// reset the cellView's properties
cellView.dataIndex = 0;
cellView.cellIndex = 0;
cellView.active = false;
if (cellViewVisibilityChanged != null) cellViewVisibilityChanged(cellView);
}
/// <summary>
/// Create a cell view, or recycle one if it already exists
/// </summary>
/// <param name="cellPrefab">The prefab to use to create the cell view</param>
/// <returns></returns>
public EnhancedScrollerCellView GetCellView(EnhancedScrollerCellView cellPrefab)
{
// see if there is a view to recycle
var cellView = _GetRecycledCellView(cellPrefab);
if (cellView == null)
{
cellView = _delegate.InstantiateCellView(this);
if (cellView == null)
{
// no recyleable cell found, so we create a new view
// and attach it to our container
var go = Instantiate(cellPrefab.gameObject);
cellView = go.GetComponent<EnhancedScrollerCellView>();
}
cellView.transform.SetParent(_container, false);
}
return cellView;
}
/// <summary>
/// Get a recycled cell with a given identifier if available
/// </summary>
/// <param name="cellPrefab">The prefab to check for</param>
/// <returns></returns>
private EnhancedScrollerCellView _GetRecycledCellView(EnhancedScrollerCellView cellPrefab)
{
for (var i = 0; i < _recycledCellViews.Count; i++)
{
if (_recycledCellViews[i].cellIdentifier == cellPrefab.cellIdentifier)
{
// the cell view was found, so we use this recycled one.
// we also remove it from the recycled list
var cellView = _recycledCellViews.RemoveAt(i);
return cellView;
}
}
return null;
}