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Update data source protocols to make synchronous node creation api methods optional.

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This commit is contained in:
Rahul Malik
2016-02-09 22:47:43 -08:00
parent cae47e23e1
commit 3e5daf4ccd
9 changed files with 58 additions and 52 deletions
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9
AsyncDisplayKit/ASCollectionView.h
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@@ -340,6 +340,8 @@ NS_ASSUME_NONNULL_BEGIN
#define ASCollectionViewDataSource ASCollectionDataSource
@protocol ASCollectionDataSource <ASCommonCollectionViewDataSource, NSObject>
@optional
/**
* Similar to -collectionView:cellForItemAtIndexPath:.
*
@@ -353,16 +355,15 @@ NS_ASSUME_NONNULL_BEGIN
*/
- (ASCellNode *)collectionView:(ASCollectionView *)collectionView nodeForItemAtIndexPath:(NSIndexPath *)indexPath;
@optional
/**
* Similar to -collectionView:nodeForItemAtIndexPath:
* This method takes precedence over collectionView:nodeForItemAtIndexPath: if implemented.
*
* @param collectionView The sender.
*
* @param indexPath The index path of the requested node.
*
* @returns a block that creates the node for display at this indexpath.
* @returns a block that creates the node for display at this indexpath.
* Must be thread-safe (can be called on the main thread or a background
* queue) and should not implement reuse (it will be called once per row).
*/