65 lines
2.0 KiB
Objective-C
65 lines
2.0 KiB
Objective-C
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import <UIKit/UIKit.h>
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#import "RCTBridge.h"
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@class ALAssetsLibrary;
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typedef void (^RCTImageLoaderProgressBlock)(int64_t progress, int64_t total);
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typedef void (^RCTImageLoaderCompletionBlock)(NSError *error, id image /* UIImage or CAAnimation */);
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typedef void (^RCTImageLoaderCancellationBlock)(void);
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@interface RCTImageLoader : NSObject <RCTBridgeModule>
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/**
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* Loads the specified image at the highest available resolution.
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* Can be called from any thread, will always call callback on main thread.
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*/
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- (RCTImageLoaderCancellationBlock)loadImageWithTag:(NSString *)imageTag
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callback:(RCTImageLoaderCompletionBlock)callback;
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/**
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* As above, but includes target size, scale and resizeMode, which are used to
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* select the optimal dimensions for the loaded image.
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*/
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- (RCTImageLoaderCancellationBlock)loadImageWithTag:(NSString *)imageTag
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size:(CGSize)size
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scale:(CGFloat)scale
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resizeMode:(UIViewContentMode)resizeMode
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progressBlock:(RCTImageLoaderProgressBlock)progressBlock
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completionBlock:(RCTImageLoaderCompletionBlock)completionBlock;
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/**
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* Is the specified image tag an asset library image?
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*/
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+ (BOOL)isAssetLibraryImage:(NSString *)imageTag;
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/**
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* Is the specified image tag a remote image?
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*/
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+ (BOOL)isRemoteImage:(NSString *)imageTag;
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@end
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@interface RCTBridge (RCTImageLoader)
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/**
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* The shared image loader instance
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*/
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@property (nonatomic, readonly) RCTImageLoader *imageLoader;
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/**
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* The shared asset library instance.
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*/
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@property (nonatomic, readonly) ALAssetsLibrary *assetsLibrary;
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@end
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