public void SetPositionViewHolder(IViewHolderInfo vh)
{
Vector2 size = GetRowSize();
if (IsVerticalOrientation())
{
if (recyclerView.IsReverse)
{
vh.RectTransform.localPosition = new Vector3(0, (vh.CurrentIndex * size.y), 0);
}
else
{
vh.RectTransform.localPosition = new Vector3(0, (-vh.CurrentIndex * size.y), 0);
}
}
else
{
if (recyclerView.IsReverse)
{
vh.RectTransform.localPosition = new Vector3((-vh.CurrentIndex * size.x), 0, 0);
}
else
{
vh.RectTransform.localPosition = new Vector3((vh.CurrentIndex * size.x), 0, 0);
}
}
}
private void ThrowToCache(IViewHolderInfo viewHolder)
{
viewHolder.Status = ViewHolder.Status.CACHE;
Cache.Add(viewHolder);
if (Cache.Count > CacheSize)
{
ThrowToPool(Cache[0]);
Cache.RemoveAt(0);
}
}
private void ThrowToPool(IViewHolderInfo vh)
{
vh.Status = ViewHolder.Status.RECYCLED;
vh.ItemView.SetActive(false);
IViewHolderInfo recycled = pool.Throw(vh);
if (recycled != null)
{
recycled.Destroy();
}
}
private IViewHolderInfo TryGetViewHolderForPosition(int position)
{
if (position >= 0 && position < GetItemCount())
{
for (int i = 0; i < AttachedScrap.Count; i++)
{
if (AttachedScrap[i].CurrentIndex == position)
{
IViewHolderInfo v = AttachedScrap[i];
AttachedScrap.RemoveAt(i);
return(v);
}
}
for (int i = 0; i < Cache.Count; i++)
{
if (Cache[i].CurrentIndex == position)
{
IViewHolderInfo v = Cache[i];
Cache.RemoveAt(i);
return(v);
}
}
IViewHolderInfo vhrecycled;
vhrecycled = pool.GetFromPool();
if (vhrecycled != null)
{
vhrecycled.Status = ViewHolder.Status.SCRAP;
vhrecycled.LastIndex = vhrecycled.CurrentIndex;
vhrecycled.CurrentIndex = position;
layoutManager.AttachToGrid(vhrecycled, true);
OnBindViewHolder((T)Convert.ChangeType(vhrecycled, typeof(T)), vhrecycled.CurrentIndex);
return(vhrecycled);
}
IViewHolderInfo vh = (ViewHolder)Activator.CreateInstance(typeof(T), new object[] { OnCreateViewHolder() });
vh.CurrentIndex = position;
vh.LastIndex = position;
vh.Status = ViewHolder.Status.SCRAP;
layoutManager.AttachToGrid(vh, true);
OnBindViewHolder((T)Convert.ChangeType(vh, typeof(T)), vh.CurrentIndex);
return(vh);
}
else
{
return(null);
}
}
public void AttachToGrid(IViewHolderInfo vh, bool up)
{
vh.ItemView.transform.SetParent(Grid.transform);
if (up)
{
vh.ItemView.transform.SetAsLastSibling();
}
else
{
vh.ItemView.transform.SetAsFirstSibling();
}
vh.ItemView.name = vh.CurrentIndex.ToString();
vh.ItemView.SetActive(true);
SetPivot(vh.RectTransform);
SetPositionViewHolder(vh);
}
public IViewHolderInfo Throw(IViewHolderInfo vh)
{
if (Scrap.Count < poolSize)
{
vh.Status = ViewHolder.Status.RECYCLED;
Scrap.Enqueue(vh);
}
else
{
vh.Status = ViewHolder.Status.RECYCLED;
IViewHolderInfo recycled = Scrap.Dequeue();
Scrap.Enqueue(vh);
return(recycled);
}
return(null);
}
protected void OnDataChange(int pos = 0)
{
layoutManager.IsCreating = true;
if (pos < 0 || pos > GetItemCount())
{
return;
}
Clear();
pool = new Pool(PoolSize, CacheSize);
if (GetItemCount() > 0)
{
IViewHolderInfo vh = (T)Activator.CreateInstance(typeof(T), new object[] { OnCreateViewHolder() });
vh.CurrentIndex = pos;
vh.LastIndex = pos;
vh.Status = ViewHolder.Status.SCRAP;
AddToAttachedScrap(vh, true);
layoutManager.SetPositionViewHolder(vh);
OnBindViewHolder((T)Convert.ChangeType(vh, typeof(T)), pos);
layoutManager.OnDataChange(vh.ItemView, pos);
int ATTACHED_SCRAP_SIZE = layoutManager.GetScreenListSize() + 1;
for (int i = pos + 1; i < ATTACHED_SCRAP_SIZE + pos; i++)
{
if (i < GetItemCount())
{
IViewHolderInfo vh2 = (T)Activator.CreateInstance(typeof(T), new object[] { OnCreateViewHolder() });
vh2.CurrentIndex = i;
vh2.LastIndex = i;
vh2.Status = ViewHolder.Status.SCRAP;
AddToAttachedScrap(vh2, true);
layoutManager.SetPositionViewHolder(vh2);
OnBindViewHolder((T)Convert.ChangeType(vh2, typeof(T)), i);
}
}
layoutManager.ClampList();
}
layoutManager.IsCreating = false;
}
private void UpdateScrap()
{
int firstPosition = layoutManager.GetFirstPosition();
List <IViewHolderInfo> TmpScrap = new List <IViewHolderInfo>();
for (int i = firstPosition - 1; i < firstPosition + layoutManager.GetScreenListSize() + 1; i++)
{
IViewHolderInfo vh = TryGetViewHolderForPosition(i);
if (vh != null)
{
TmpScrap.Add(vh);
}
}
ThrowAttachedScrapToCache();
AttachedScrap.Clear();
AttachedScrap.AddRange(TmpScrap);
if (DEBUG)
{
Debug.Log(ToString());
}
}
private void AddToAttachedScrap(IViewHolderInfo vh, bool up)
{
layoutManager.AttachToGrid(vh, up);
vh.ItemView.SetActive(true);
AttachedScrap.Add(vh);
}
