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Give ASMultiplexImageNodeDataSources an opportunity to provide PHAssets quicker

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This commit is contained in:
Adlai Holler
2015-10-06 16:35:50 -07:00
parent fffc76a353
commit 6d73cee9fd
2 changed files with 25 additions and 9 deletions
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12
AsyncDisplayKit/ASMultiplexImageNode.h
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@@ -212,6 +212,18 @@ didFinishDownloadingImageWithIdentifier:(id)imageIdentifier
*/
- (NSURL *)multiplexImageNode:(ASMultiplexImageNode *)imageNode URLForImageIdentifier:(id)imageIdentifier;
/**
* @abstract A PHAsset for the specific asset local identifier
* @param imageNode The sender.
* @param assetLocalIdentifier The local identifier for a PHAsset that this image node is loading.
*
* @discussion This optional method can improve image performance if your data source already has the PHAsset available.
* If this method is not implemented, or returns nil, the image node will request the asset from the Photos framework.
* @note This method may be called from any thread.
* @return A PHAsset corresponding to `assetLocalIdentifier`, or nil if none is available.
*/
- (PHAsset *)multiplexImageNode:(ASMultiplexImageNode *)imageNode assetForLocalIdentifier:(NSString *)assetLocalIdentifier;
@end
#pragma mark -