/// <summary>
/// 底部越界事件
/// </summary>
/// <param name="_rect"></param>
/// <param name="_childrenRect"></param>
private void ProcessCrossBottomBorder()
{
Vector3 offsetMin = minminCornerWorld * 0.5f + maxminCornerWorld * 0.5f;
InfiniteItem firstItem = infiniteItemList[0];
Vector3 offsetTopLocal = new Vector3(0, firstItem.offsetMax.y, 0);
Vector3 offsetTopWorld = firstItem.parent.TransformPoint(offsetTopLocal);
Vector3 max = Vector3.zero;
InfiniteItem item = null;
for (int i = infiniteItemList.Count - 1; i >= 0; i--)
{
item = infiniteItemList[i];
max = item.parent.TransformPoint(new Vector3(0, item.offsetMax.y, 0));
if (max.y < offsetMin.y)
{
preIndex++;
rearIndex++;
if (moveNextCallBack != null)
{
moveNextCallBack(0, item);
}
offsetTopWorld = item.parent.TransformPoint(offsetTopLocal + new Vector3(0, item.rect.height * item.pivot.y, 0));
offsetTopLocal = offsetTopLocal + new Vector3(0, item.rect.height, 0);
item.rectTransform.position = offsetTopWorld;
infiniteItemList.Remove(item);
infiniteItemList.Insert(0, item);
}
else
{
break;
}
}
}
public virtual void DoLastToFirst(InfiniteItem _item)
{
if (_item != this)
{
return;
}
txtContent.text = preIndex.ToString();
index--;
preIndex--;
}
public virtual void DoFirstToLast(InfiniteItem _item)
{
if (_item != this)
{
return;
}
index++;
preIndex++;
txtContent.text = index.ToString();
}
private void ResetPosition()
{
if (m_Content == null)
{
return;
}
if (infiniteItemList == null)
{
infiniteItemList = new List <InfiniteItem>();
InfiniteItem item = null;
int childCount = m_Content.childCount;
for (int i = 0; i < childCount; i++)
{
item = m_Content.GetChild(i).GetComponent <InfiniteItem>();
if (item != null)
{
infiniteItemList.Add(item);
item.pivot = Vector2.one * 0.5f;
item.sizeDelta = m_CellSize;
}
}
}
rectTransform.anchorMax = m_Content.anchorMax = Vector2.one * 0.5f;
rectTransform.anchorMin = m_Content.anchorMin = Vector2.one * 0.5f;
rectTransform.pivot = m_Content.pivot = Vector2.one * 0.5f;
m_Content.sizeDelta = rectTransform.sizeDelta;
m_Content.anchoredPosition3D = Vector3.zero;
InfiniteItem lastItem = infiniteItemList[0];
lastItem.rectTransform.anchoredPosition = new Vector2(0, m_Content.rect.height * 0.5f - lastItem.rect.height * (1 - lastItem.pivot.y));
for (int i = 1; i < infiniteItemList.Count; i++)
{
infiniteItemList[i].SetAnchoredPosition(lastItem.rectTransform.anchoredPosition.AddY(-m_CellSize.y), 0f);
lastItem = infiniteItemList[i];
}
}
/// <summary>
/// 顶部越界事件
/// </summary>
private void ProcessCrossTopBorder()
{
Vector3 offsetMax = minmaxCornerWorld * 0.5f + maxmaxCornerWorld * 0.5f;
InfiniteItem lastItem = infiniteItemList[infiniteItemList.Count - 1];
Vector3 offsetBottomLocal = new Vector3(0, lastItem.offsetMin.y, 0);
Vector3 offsetBottomWorld = lastItem.parent.TransformPoint(offsetBottomLocal);
Vector3 min = Vector3.zero;
InfiniteItem item = null;
for (int i = 0; i < infiniteItemList.Count; i++)
{
item = infiniteItemList[i];
min = item.parent.TransformPoint(new Vector3(0, item.offsetMin.y, 0));
if (min.y > offsetMax.y)
{
preIndex--;
rearIndex--;
if (moveLastCallBack != null)
{
moveLastCallBack(0, item);
}
offsetBottomWorld = item.parent.TransformPoint(offsetBottomLocal - new Vector3(0, item.rect.height * (1f - item.pivot.y), 0));
offsetBottomLocal = offsetBottomLocal - new Vector3(0, item.rect.height, 0);
item.rectTransform.position = offsetBottomWorld;
infiniteItemList.Remove(item);
infiniteItemList.Add(item);
}
else
{
break;
}
}
}
