//-------∽-★-∽------∽-★-∽--------∽-★-∽列表项相关∽-★-∽--------∽-★-∽------∽-★-∽--------//
//创建列表项
protected GameObject CreateItem(int index_)
{
if (m_index2item.ContainsKey(index_))
{
return(m_index2item[index_]);
}
GameObject item;
if (m_itemPool.Count > 0)
{
item = ListUtil.Pop(m_itemPool); //先从池里拿
}
else
{
item = GameObjUtil.Instantiate(m_itemTemp);
GameObjUtil.ChangeParent(item, m_contentGo);
}
m_index2item[index_] = item;
item.SetActive(true);
item.name = "item(" + index_ + ")";
LayItem(index_, item);
return(item);
}
void ShowItemsFrom(int begin_, int end_, bool force_)
{
if (m_begin == begin_ && m_end == end_ && !force_)
{
return;
}
m_begin = begin_;
m_end = end_;
__addList.Clear();
__delList.Clear();
//记录需要增加的序号
for (int i = begin_; i <= end_; ++i)
{
if (!m_index2item.ContainsKey(i))
{
__addList.Add(i);
}
}
//记录需要移除的序号
foreach (var kvp in m_index2item)
{
if (kvp.Key < begin_ || kvp.Key > end_)
{
__delList.Add(kvp.Key);
}
}
GameObject item;
int index;
int delIndex;
for (int i = 0; i < __addList.Count; ++i)
{
index = __addList[i];
if (__delList.Count > 0)
{
//先从移除列表里面取
delIndex = ListUtil.Pop(__delList);
item = ChangeItemIndex(delIndex, index);
}
else
{
item = CreateItem(index);
}
SetItemData(item, index, m_dataList[index]);
}
if (__delList.Count > 0)
{
//还有要删除的
for (int i = 0; i < __delList.Count; ++i)
{
index = __delList[i];
RecyleItem(index);
}
}
__addList.Clear();
__delList.Clear();
}
