40 lines
1.1 KiB
Objective-C
Executable File
40 lines
1.1 KiB
Objective-C
Executable File
// Copyright 2015 Google Inc.
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/** @cond ENABLE_FEATURE_GUI */
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#import <GoogleCast/GCKDefines.h>
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#import <Foundation/Foundation.h>
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#import <UIKit/UIKit.h>
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NS_ASSUME_NONNULL_BEGIN
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/**
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* A protocol that defines a means of retrieving and caching images. A default implementation is
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* used internally by the framework to cache media artwork that is displayed in the user interface.
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* The application can provide a custom implementation by setting the GCKCastContext::imageCache
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* property.
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*
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* @since 3.0
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*/
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GCK_EXPORT
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@protocol GCKUIImageCache <NSObject>
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/**
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* Fetches the image at the given URL, and returns a scaled version of the image. This is an
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* asynchronous operation.
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*
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* @param imageURL The URL of the image.
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* @param completion A block to invoke once the image has been retrieved. The image should be passed
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* to the block. If there was an error retrieving the image, <code>nil</code> should be passed
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* instead. The block should only be invoked on the main thread.
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*/
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- (void)fetchImageForURL:(NSURL *)imageURL
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completion:(void (^)(UIImage *_Nullable))completion;
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@end
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NS_ASSUME_NONNULL_END
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/** @endcond */
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