public void Init()
{
Canvas.ForceUpdateCanvases();
_Collocation.InitIfNeeded(this);
if (_Collocation.scrollRect.horizontalScrollbar != null || _Collocation.scrollRect.verticalScrollbar != null)
{
throw new UnityException("SmartScrollView only works with a " + typeof(SmartScrollViewScrollbar).Name + " component added to the Scrollbar and the ScrollRect shouldn't have any scrollbar set up in the inspector (it hooks up automatically)");
}
_ItemsDesc = new ItemsDescriptor(_Collocation.DefaultItemSize);
_InternalState = InternalState.CreateFromSourceParamsOrThrow(_Collocation, _ItemsDesc);
_VisibleItems = new List <UILoopSmartItem>();
_AVGVisibleItemsCount = 0;
Refresh();
_InternalState.UpdateLastProcessedCTVirtualInsetFromParentStart();
SetVirtualAbstractNormalizedScrollPosition(1f, false); // scroll to start
_Collocation.scrollRect.onValueChanged.AddListener(OnScrollViewValueChanged);
if (ScrollPositionChanged != null)
{
ScrollPositionChanged(GetNormalizedPosition());
}
Initialized = true;
}
protected InternalStateGeneric(TParams sourceParams, ItemsDescriptor itemsDescriptor)
{
_SourceParams = sourceParams;
_ItemsDesc = itemsDescriptor;
var lg = sourceParams.content.GetComponent <LayoutGroup>();
if (lg && lg.enabled)
{
lg.enabled = false;
Debug.Log("LayoutGroup on GameObject " + lg.name + " has beed disabled in order to use Tools");
}
var contentSizeFitter = sourceParams.content.GetComponent <ContentSizeFitter>();
if (contentSizeFitter && contentSizeFitter.enabled)
{
contentSizeFitter.enabled = false;
Debug.Log("ContentSizeFitter on GameObject " + contentSizeFitter.name + " has beed disabled in order to use Tools");
}
var layoutElement = sourceParams.content.GetComponent <LayoutElement>();
if (layoutElement)
{
GameObject.Destroy(layoutElement);
Debug.Log("LayoutElement on GameObject " + contentSizeFitter.name + " has beed DESTROYED in order to use Tools");
}
if (sourceParams.scrollRect.horizontal)
{
startEdge = RectTransform.Edge.Left;
endEdge = RectTransform.Edge.Right;
transvStartEdge = RectTransform.Edge.Top;
_GetRTCurrentSizeFn = root => root.rect.width;
}
else
{
startEdge = RectTransform.Edge.Top;
endEdge = RectTransform.Edge.Bottom;
transvStartEdge = RectTransform.Edge.Left;
_GetRTCurrentSizeFn = root => root.rect.height;
}
_SourceParams.UpdateContentPivotFromGravityType();
CacheScrollViewInfo();
}
protected virtual void CollectItemsSizes(ItemCountChangeMode changeMode, int count, int indexIfInsertingOrRemoving, ItemsDescriptor itemsDesc)
{
itemsDesc.ReinitializeSizes(changeMode, count, indexIfInsertingOrRemoving, _Collocation.DefaultItemSize);
}
protected InternalState(TParams sourceParams, ItemsDescriptor itemsDescriptor) : base(sourceParams, itemsDescriptor)
{
}
internal static InternalState CreateFromSourceParamsOrThrow(TParams sourceParams, ItemsDescriptor itemsDescriptor)
{
if (sourceParams.scrollRect.horizontal && sourceParams.scrollRect.vertical)
{
throw new UnityException("Can't optimize a ScrollRect with both horizontal and vertical scrolling modes. Disable one of them");
}
return(new InternalState(sourceParams, itemsDescriptor));
}