/*private void WrapContent ()
* {
* Vector3[] conner_Local = new Vector3[4];
* for (int i = 0; i < 4; i++) {
* conner_Local [i] = transform.InverseTransformPoint (conners [i]);
* Debug.Log ("conner_Local[i]: " + conner_Local [i]);
* }
* Vector3 lastItemPos = _listItem.Count > 0 ? _listItem[_listItem.Count - 1].transform.localPosition : Vector3.zero;
* Debug.Log("lastItemPos.y <= conner_Local[0].y : " + lastItemPos.y + "conner_Local[0].y" + conner_Local[0].y);
* Debug.Log("itemTypeStart: " + itemTypeStart);
* if (lastItemPos.y <= conner_Local[0].y || _listItem.Count == 0)
* {
* ChatContentIndexCallback temp = CreateItem(itemTypeStart);
* temp.transform.SetAsFirstSibling();
* itemTypeStart--;
* _listItem.Add(temp);
* }
* }*/
// Update is called once per frame
void Update()
{
//if (_listItem.Count > 0) {
//GameObject obj = _listItem[]
//Debug.Log(_scrollRect.content.sizeDelta.y);
if (_chatStateType == ChatStateType.initItem)
{
if (itemTypeStart > 0)
{
Vector3[] conner_Local = new Vector3[4];
for (int i = 0; i < 4; i++)
{
conner_Local[i] = itemParent.InverseTransformPoint(conners[i]);
//Debug.Log ("conner_Local[i]: " + conner_Local [i]);
}
//Vector3 center = (conner_Local [0] + conner_Local [3]) / 2;//计算此时中心点的坐标
Vector3 lastItemPos = _listItem.Count > 0 ? _listItem [_listItem.Count - 1].transform.localPosition : Vector3.zero;
//Debug.Log("lastItemPos.y <= conner_Local[0].y : " + lastItemPos.y + "conner_Local[0].y" + conner_Local[0].y);
//Debug.Log("itemTypeStart: "+itemTypeStart);
if (lastItemPos.y <= conner_Local[0].y || _listItem.Count == 0)
{
ChatContentIndexCallback temp = CreateItem(itemTypeStart);
temp.transform.SetAsFirstSibling();
itemTypeStart--;
_listItem.Add(temp);
}
else
{
startPostion = _scrollRect.content.position;
_chatStateType = ChatStateType.empty;
}
}
else
{
_chatStateType = ChatStateType.empty;
}
}
else if (_chatStateType == ChatStateType.BotttomToTop)
{
//Debug.Log("itemTypeEnd: " + itemTypeEnd + "totalCount: " + totalCount);
MoveBotttomToTop();
}
else if (_chatStateType == ChatStateType.TopToBottom)
{
//Debug.Log("itemTypeStart: "+itemTypeStart);
MoveTopToBottom();
}
//startPostion = _scrollRect.content.anchoredPosition;
}
public void SetChatCount(int count)
{
if (_verLayoutGroup == null)
{
totalCount = count;
return;
}
_verLayoutGroup.padding.bottom = 0;
Recycle();
totalCount = count;
itemTypeEnd = totalCount;
itemTypeStart = itemTypeEnd;
_chatStateType = ChatStateType.initItem;
//_verLayoutGroup.padding.bottom = (int)_scrollRect.GetComponent<RectTransform>().sizeDelta.y;
}
void OnValueChanged(Vector2 vec)
{
// return;
if (vec != Vector2.zero)
{
Vector3 currentPos = _scrollRect.content.position;
Vector3 temp = currentPos - startPostion;
//Debug.Log ("temp: " + temp);
//float offest = currentPos.y - startPostion.y;
if ((_chatStateType == ChatStateType.empty || _chatStateType == ChatStateType.BotttomToTop) && temp.y < 0)
{
_chatStateType = ChatStateType.TopToBottom;
//_scrollRect.content.pivot = new Vector2(0.5f,0);
}
else if ((_chatStateType == ChatStateType.empty || _chatStateType == ChatStateType.TopToBottom) && temp.y > 0)
{
_chatStateType = ChatStateType.BotttomToTop;
//_scrollRect.content.pivot = new Vector2(0.5f,1);
}
startPostion = _scrollRect.content.position;
//Debug.Log("currentPos: "+currentPos+"startPosition: "+startPostion+"offest: "+offest);
//Debug.Log ("_chatStateType: " + _chatStateType);
}
}