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MultiplePrefabsExample Methods

The MultiplePrefabsExample type exposes the following members.

Methods
  NameDescription
Public methodChangeItemsCount

Self-explanatory. See ItemCountChangeMode in order to understand how change modes differ from each other.

Every count change operation (Refresh(Boolean, Boolean), InsertItems(Int32, Int32, Boolean, Boolean) etc.) ultimately calls this method, so it's a good place for example to fire a custom "ItemsChanged" event, if you need to

(Overrides OSATParams, TItemViewsHolderChangeItemsCount(ItemCountChangeMode, Int32, Int32, Boolean, Boolean).)
Protected methodCreateViewsHolder
Creates either a BidirectionalVH or a ExpandableVH, depending on the type of the model at index itemIndex. Calls Init(RectTransform, Int32, Boolean, Boolean) on it, which instantiates the prefab etc.
(Overrides OSATParams, TItemViewsHolderCreateViewsHolder(Int32).)
Protected methodIsRecyclable
Overriding the base implementation, which always returns true. In this case, a views holder is recyclable only if its CanPresentModelType(Type) returns true for the model at index indexOfItemThatWillBecomeVisible
(Overrides OSATParams, TItemViewsHolderIsRecyclable(TItemViewsHolder, Int32, Double).)
Public methodOnExpandedStateChanged
Protected methodOnItemIndexChangedDueInsertOrRemove

This is overidden only so that the items' title will be updated to reflect its new index in case of Insert/Remove, because the index is not stored in the model

If you don't store/care about the index of each item, you can omit this

For more info, see OnItemIndexChangedDueInsertOrRemove(TItemViewsHolder, Int32, Boolean, Int32)

(Overrides OSATParams, TItemViewsHolderOnItemIndexChangedDueInsertOrRemove(TItemViewsHolder, Int32, Boolean, Int32).)
Protected methodStart (Overrides OSATParams, TItemViewsHolderStart.)
Protected methodUpdateViewsHolder

Here the data in your model should be bound to the views. Use newOrRecycled.ItemIndex (ItemIndex) to retrieve its associated model

Note that views holders are re-used (this is the main purpose of this adapter), so a views holder's views will contain data from its previously associated model and if,

for example, you're downloading an image to be set as an icon, it makes sense to first clear the previous one (and probably temporarily replace it with a generic "Loading" image)

Note that this is not called for items that will remain visible after an Insert or Remove operation is done

(Overrides OSATParams, TItemViewsHolderUpdateViewsHolder(TItemViewsHolder).)
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