public void Initialize(IList <System.Object> dataArray, E_ScrollOption scrollOption = E_ScrollOption.ResetToZero)
{
m_initialized = true;
m_dataArray = dataArray;
m_transNodeRoot.localPosition = Vector3.zero;
if (m_dataArray == null || m_dataArray.Count < 1)
{
m_transNodeRoot.SetChildCount(0);
m_poolSize = 0;
m_maxLine = 0;
m_firstIndexMax = 0;
SetHeadAndTailSpritePosition();
CachedScrollView.ResetPosition();
return;
}
int visibleLines = GetVisibleLines();
m_poolSize = Mathf.Min(m_dataArray.Count, visibleLines * m_columnCount);
m_maxLine = Mathf.Max(0, (m_dataArray.Count - 1) / m_columnCount);
m_firstIndexMax = Mathf.Max(0, m_dataArray.Count - m_poolSize);
// calculate the position of the head and the tail
SetHeadAndTailSpritePosition();
m_prototype.gameObject.SetActive(true);
// initialize prototypes
m_transNodeRoot.SetChildCount(m_poolSize, m_prototype);
m_prototype.gameObject.SetActive(false);
// add prototypes into dynamic item pool
m_dynamicNodes.Clear();
for (int i = 0; i < m_poolSize; i++)
{
Transform childTrans = m_transNodeRoot.GetChild(i);
childTrans.gameObject.SetActive(true);
UIPoolListNode uiItem = childTrans.GetComponent <UIPoolListNode>();
m_dynamicNodes.Add(uiItem);
}
m_firstIndexLastFrame = -1;
if (scrollOption == E_ScrollOption.ResetToZero)
{
CachedScrollView.ResetPosition();
UpdateItems(0);
}
else
{
if (gameObject.activeInHierarchy)
{
StartCoroutine(RestrictWithInBounds());
}
UpdateItems(GetFirstVisibleIndex());
}
//CachedScrollView.onDragFinished = OnPanelDragFinished;
m_lastPull = 0;
}
protected virtual void OnClick()
{
if (s_current == null && Initialized && enabled)
{
s_current = this;
EventDelegate.Execute(m_onClick);
s_current = null;
}
}
protected void UpdateItems(int firstVisibleIndex)
{
int lastVisibleIndex = firstVisibleIndex + m_poolSize;
// find out nodes to be updated
List <UIPoolListNode> nodesToUpdate = new List <UIPoolListNode>(m_dynamicNodes);
List <System.Object> dataToUpdate = new List <System.Object>();
List <int> indexes = new List <int>();
for (int i = firstVisibleIndex; i < lastVisibleIndex; i++)
{
System.Object data = m_dataArray[i];
UIPoolListNode existingNode = null;
if (data != null)
{
existingNode = nodesToUpdate.Find(x => data.Equals(x.m_data));
}
if (existingNode != null && existingNode.Initialized)
{
nodesToUpdate.Remove(existingNode);
existingNode.CachedTrans.localPosition = GetPositionByIndex(i) + NodeOffset;
}
else
{
dataToUpdate.Add(data);
indexes.Add(i);
}
}
for (int i = 0; i < dataToUpdate.Count; i++)
{
UIPoolListNode node = nodesToUpdate[i];
System.Object data = dataToUpdate[i];
node.Initialize(data);
node.name = "item" + i;
node.CachedTrans.localPosition = GetPositionByIndex(indexes[i]) + NodeOffset;
}
m_firstIndexLastFrame = firstVisibleIndex;
}
