public void Initialize(int pTotalItems)
{
if (pTotalItems == total)
{
return;
}
mListItemRect = new List <RectTransform>();
if (mListItem == null || mListItem.Count == 0)
{
mListItem = new List <OptimizedScrollItem>();
mListItem.Prepare(prefab, container.parent, 5);
}
else
{
mListItem.Free(container);
}
total = pTotalItems;
container.anchoredPosition3D = new Vector3(0, 0, 0);
if (mMaskRect == null)
{
mMaskRect = mask.GetComponent <RectTransform>();
}
Vector2 prefabScale = mListItem[0].GetComponent <RectTransform>().rect.size;
mPrefabSize = (Direction == ScrollDirection.Horizontal ? prefabScale.x : prefabScale.y) + spacing;
container.sizeDelta = Direction == ScrollDirection.Horizontal ? (new Vector2(mPrefabSize * total, prefabScale.y)) : (new Vector2(prefabScale.x, mPrefabSize * total));
mHalftSizeContainer = Direction == ScrollDirection.Horizontal ? (container.rect.size.x * 0.5f) : (container.rect.size.y * 0.5f);
mTotalVisible = Mathf.CeilToInt((Direction == ScrollDirection.Horizontal ? mMaskRect.rect.size.x : mMaskRect.rect.size.y) / mPrefabSize);
mOffsetVec = Direction == ScrollDirection.Horizontal ? Vector3.right : Vector3.down;
mStartPos = container.anchoredPosition3D - (mOffsetVec * mHalftSizeContainer) + (mOffsetVec * ((Direction == ScrollDirection.Horizontal ? prefabScale.x : prefabScale.y) * 0.5f));
mOptimizedTotal = Mathf.Min(total, mTotalVisible + mTotalBuffer);
for (int i = 0; i < mOptimizedTotal; i++)
{
OptimizedScrollItem item = mListItem.Obtain(container);
RectTransform rt = item.GetComponent <RectTransform>();
rt.anchoredPosition3D = mStartPos + (mOffsetVec * i * mPrefabSize);
mListItemRect.Add(rt);
item.SetActive(true);
item.UpdateContent(i);
}
prefab.gameObject.SetActive(false);
container.anchoredPosition3D += mOffsetVec * (mHalftSizeContainer - ((Direction == ScrollDirection.Horizontal ? mMaskRect.rect.size.x : mMaskRect.rect.size.y) * 0.5f));
}
public void Init(int pTotalItems, bool pForce)
{
if (pTotalItems == total && !pForce)
{
return;
}
mListItemRect = new List <RectTransform>();
if (mListItem == null || mListItem.Count == 0)
{
mListItem = new List <OptimizedScrollItem>();
mListItem.Prepare(prefab, container.parent, 5);
}
else
{
mListItem.Free(container);
}
total = pTotalItems;
container.anchoredPosition3D = new Vector3(0, 0, 0);
var rectZero = mListItem[0].GetComponent <RectTransform>();
Vector2 prefabScale = rectZero.rect.size;
mPrefabSizeY = prefabScale.y + spacing;
mPrefabSizeX = prefabScale.x + spacing;
mPivot = rectZero.pivot;
if (itemFixedWidth > 0)
{
var size = rectZero.sizeDelta;
size.x = itemFixedWidth;
rectZero.sizeDelta = size;
}
container.sizeDelta = new Vector2(prefabScale.x * totalCellOnRow, mPrefabSizeY * Mathf.CeilToInt(total * 1f / totalCellOnRow));
mHalftSizeContainer = container.rect.size.y * 0.5f;
var viewRect = mask.transform as RectTransform;
var scrollRect = scrollView.transform as RectTransform;
//Re Update min-max view size
if (autoMatchHeight)
{
float preferHeight = container.sizeDelta.y + spacing * 2;
if (maxViewHeight > 0 && preferHeight > maxViewHeight)
{
preferHeight = maxViewHeight;
}
else if (minViewHeight > 0 && preferHeight < minViewHeight)
{
preferHeight = minViewHeight;
}
var size = scrollRect.sizeDelta;
size.y = preferHeight;
scrollRect.sizeDelta = size;
}
mTotalVisible = Mathf.CeilToInt(viewRect.rect.size.y / mPrefabSizeY) * totalCellOnRow;
mTotalBuffer *= totalCellOnRow;
mOffsetVec = Vector3.down;
mStartPos = container.anchoredPosition3D - (mOffsetVec * mHalftSizeContainer) + (mOffsetVec * (prefabScale.y * 0.5f));
mOptimizedTotal = Mathf.Min(total, mTotalVisible + mTotalBuffer);
for (int i = 0; i < mOptimizedTotal; i++)
{
int cellIndex = i % totalCellOnRow;
int rowIndex = Mathf.FloorToInt(i * 1f / totalCellOnRow);
OptimizedScrollItem item = mListItem.Obtain(container);
RectTransform rt = item.transform as RectTransform;
if (itemFixedWidth > 0)
{
var size = rt.sizeDelta;
size.x = itemFixedWidth;
rt.sizeDelta = size;
}
rt.anchoredPosition3D = mStartPos + (mOffsetVec * rowIndex * mPrefabSizeY);
rt.anchoredPosition3D = new Vector3(-container.rect.size.x / 2 + cellIndex * mPrefabSizeX + mPrefabSizeX * 0.5f,
rt.anchoredPosition3D.y,
rt.anchoredPosition3D.z);
mListItemRect.Add(rt);
item.SetActive(true);
item.UpdateContent(i);
}
prefab.gameObject.SetActive(false);
container.anchoredPosition3D += mOffsetVec * (mHalftSizeContainer - (viewRect.rect.size.y * 0.5f));
}