private void CreateItemByIndex(int dataIndex)
{
UIInfiniteTableItem item;
if (mUnusedItemQueue.Count > 0)
{
item = mUnusedItemQueue.Dequeue();
}
else
{
item = new UIInfiniteTableItem();
GameObject itemPrefab = ResourcesManager.Instance.ResourcesLoad <GameObject>("Prefabs/UI/" + mItemPrefabName);
if (itemPrefab != null)
{
GameObject obj = AddChild(transform, itemPrefab);
item.mObj = obj;
}
item.mChildIndex = childCount;
childCount++;
//返回 item 挂的脚本回调
if (onGetItemComponent != null)
{
onGetItemComponent(item.mObj);
}
}
item.mDataIndex = dataIndex;
item.OnShow(GetItemPosByIndex(dataIndex));
mItemList.Add(item);
//刷洗 item 数据
if (onReposition != null)
{
onReposition(item.mObj, dataIndex, item.mChildIndex);
}
}
/// <summary>
/// 根据数据index 获取对应的item ChildIndex
/// </summary>
public int GetItemChildIndexByIndex(int index)
{
for (int i = 0; i < mItemList.Count; i++)
{
UIInfiniteTableItem item = mItemList[i];
if (item.mDataIndex == index)
{
return(item.mChildIndex);
}
}
return(0);
}
//刷新
private void Refresh()
{
int index = GetIndexByPanelPos();
//满足刷新条件
if (mCurLineIndex != index && index > -1)
{
mCurLineIndex = index;
//移除不再显示范围内的 item
for (int i = mItemList.Count; i > 0; i--)
{
UIInfiniteTableItem item = mItemList[i - 1];
if (item.mDataIndex < index * mColumns ||
(item.mDataIndex >= (index + mMaxLineCount) * mColumns) ||
item.mDataIndex > mTableDataCount - 1)
{
item.OnHide();
//移除
mItemList.Remove(item);
//添加到队列
mUnusedItemQueue.Enqueue(item);
}
}
//显示满足条件的 item
for (int i = mCurLineIndex * mColumns; i < (mCurLineIndex + mMaxLineCount) * mColumns; i++)
{
if (i < 0)
{
continue;
}
//大于数据量 -- 不足以显示
if (i > mTableDataCount - 1)
{
continue;
}
bool isOk = false;
foreach (UIInfiniteTableItem item in mItemList)
{
if (item.mDataIndex == i)
{
isOk = true;
}
}
if (isOk)
{
continue;
}
CreateItemByIndex(i);
}
}
}