private void shiftUp(float d)
{
for (int i = firstPos; i <= lastPos; i++)
{
ItemBundle beforeB = getByPosition(i - 1);
ItemBundle ib = getByPosition(i);
if (beforeB == null)
{
Vector2 v = ib.trans.anchoredPosition + new Vector2(0, d);
if ((lastPos + 1) < adapter.getCount() && v.y > getTopLimtY())
{
firstPos++;
ib.position = ++lastPos;
}
else
{
ib.trans.anchoredPosition += new Vector2(0, d);
}
}
else
{
ib.trans.anchoredPosition = beforeB.getBottomCenter();
}
}
}
public bool isEnded()
{
ItemBundle ib = getByPosition(adapter.getCount() - 1);
if (ib == null)
{
return(false);
}
return(ib.getBottomCenter().y > getBottomLimtY());
}
private bool lockMoveToBottom(float d)
{
ItemBundle firstB = getByPosition(firstPos);
if (firstB == null)
{
return(false);
}
float topY = firstB.trans.anchoredPosition.y;
return(d < 0 && firstPos <= 0 && topY <= 0);
}
internal void changeData()
{
ItemBundle ib = null;
while ((ib = getCurrentFeedItem()) != null)
{
ib.trans.anchoredPosition = new Vector3(ib.trans.anchoredPosition.x, -getContentHeight(), 0);
items.Add(ib);
eventController.injectItemEvent(ib.trans.gameObject);
}
reflesh();
fixedTop();
onDataChanged();
}
private bool lockMoveToTop(float d)
{
ItemBundle lastB = getByPosition(lastPos);
if (lastB == null)
{
return(false);
}
float y = lastB.getBottomCenter().y;
bool db = d > 0;
bool indexB = lastPos >= adapter.getCount();
bool heightB = y > -getContainerHeight();
return(d > 0 && (lastPos + 1) >= adapter.getCount() && y > -getContainerHeight());
}
private void fixedTop()
{
if (isEnded())
{
ItemBundle ib = getByPosition(0);
if (ib == null)
{
return;
}
float y = ib.trans.anchoredPosition.y;
if (y != 0)
{
plusY(-y);
}
}
}
private void checkRecycle(ItemBundle ib)
{
ItemBundle targetIb;
if (ib.trans.anchoredPosition.y > getTopLimtY() && (lastPos + 1) < adapter.getCount() && (targetIb = getByPosition(lastPos)) != null)
{
ib.trans.anchoredPosition = targetIb.getBottomCenter();
ib.position = ++lastPos;
firstPos++;
}
else if (ib.trans.anchoredPosition.y < getBottomLimtY() && firstPos > 0 && (targetIb = getByPosition(firstPos)) != null)
{
Vector2 v = targetIb.trans.anchoredPosition + new Vector2(0, ib.trans.rect.height);
ib.trans.anchoredPosition = v;
ib.position = --firstPos;
lastPos--;
}
}
private void refleshFastOne(ItemBundle ib)
{
if (ib.position < adapter.getCount())
{
if (!ib.trans.gameObject.activeSelf)
{
ib.trans.gameObject.SetActive(true);
}
RectTransform rtf = adapter.getView(ib.trans, ib.position);
ib.trans = rtf;
}
else
{
if (ib.trans.gameObject.activeSelf)
{
ib.trans.gameObject.SetActive(false);
}
}
}
private ItemBundle getCurrentFeedItem()
{
int i = items.Count;
bool heightB = (getContainerHeight() * ITEM_BUFFER_HEIGHT_SCALE) > getContentHeight();
bool countB = i < adapter.getCount();
if (heightB && countB)
{
ItemBundle ans = new ItemBundle();
ans.trans = adapter.getView(null, i);
initItemTrans(ans.trans);
ans.position = i;
lastPos = i;
return(ans);
}
else
{
return(null);
}
}
private void shiftDown(float d)
{
for (int i = lastPos; i >= firstPos; i--)
{
ItemBundle nextB = getByPosition(i + 1);
ItemBundle ib = getByPosition(i);
if (nextB == null)
{
if ((firstPos) > 0 && ib.getBottomCenter().y < getBottomLimtY())
{
lastPos--;
ib.position = --firstPos;
}
else
{
ib.trans.anchoredPosition += new Vector2(0, d);
}
}
else
{
ib.trans.anchoredPosition = nextB.trans.anchoredPosition + new Vector2(0, ib.trans.rect.height);
}
}
}
private void refleshFastOne(ItemBundle ib)
{
if (ib.position < adapter.getCount()) {
if (!ib.trans.gameObject.activeSelf) {
ib.trans.gameObject.SetActive(true);
}
RectTransform rtf = adapter.getView(ib.trans, ib.position);
ib.trans = rtf;
} else {
if (ib.trans.gameObject.activeSelf) {
ib.trans.gameObject.SetActive(false);
}
}
}
private ItemBundle getCurrentFeedItem()
{
int i = items.Count;
bool heightB = (getContainerHeight() * ITEM_BUFFER_HEIGHT_SCALE) > getContentHeight();
bool countB = i < adapter.getCount();
if (heightB && countB) {
ItemBundle ans = new ItemBundle();
ans.trans = adapter.getView(null, i);
initItemTrans(ans.trans);
ans.position = i;
lastPos = i;
return ans;
} else {
return null;
}
}
private void checkRecycle(ItemBundle ib)
{
ItemBundle targetIb;
if (ib.trans.anchoredPosition.y > getTopLimtY() && (lastPos + 1) < adapter.getCount() && (targetIb = getByPosition(lastPos)) != null) {
ib.trans.anchoredPosition = targetIb.getBottomCenter();
ib.position = ++lastPos;
firstPos++;
} else if (ib.trans.anchoredPosition.y < getBottomLimtY() && firstPos > 0 && (targetIb = getByPosition(firstPos)) != null) {
Vector2 v = targetIb.trans.anchoredPosition + new Vector2(0, ib.trans.rect.height);
ib.trans.anchoredPosition = v;
ib.position = --firstPos;
lastPos--;
}
}