59 lines
1.6 KiB
Objective-C
59 lines
1.6 KiB
Objective-C
/*
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* This file is part of the SDWebImage package.
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* (c) Olivier Poitrey <rs@dailymotion.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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#import <Foundation/Foundation.h>
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#import "SDWebImageManager.h"
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/**
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* Prefetch some URLs in the cache for future use. Images are downloaded in low priority.
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*/
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@interface SDWebImagePrefetcher : NSObject
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/**
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* Maximum number of URLs to prefetch at the same time. Defaults to 3.
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*/
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@property (nonatomic, assign) NSUInteger maxConcurrentDownloads;
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/**
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* SDWebImageOptions for prefetcher. Defaults to SDWebImageLowPriority.
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*/
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@property (nonatomic, assign) SDWebImageOptions options;
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/**
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* Return the global image prefetcher instance.
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*/
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+ (SDWebImagePrefetcher *)sharedImagePrefetcher;
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/**
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* Assign list of URLs to let SDWebImagePrefetcher to queue the prefetching,
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* currently one image is downloaded at a time,
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* and skips images for failed downloads and proceed to the next image in the list
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*
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* @param urls list of URLs to prefetch
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*/
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- (void)prefetchURLs:(NSArray *)urls;
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/**
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* Assign list of URLs to let SDWebImagePrefetcher to queue the prefetching,
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* currently one image is downloaded at a time,
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* and skips images for failed downloads and proceed to the next image in the list
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*
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* @param urls list of URLs to prefetch
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* @param completionBlock block to be called when prefetching is completed
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*/
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- (void)prefetchURLs:(NSArray *)urls completed:(void (^)(NSUInteger finishedCount, NSUInteger skippedCount))completionBlock;
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/**
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* Remove and cancel queued list
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*/
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- (void)cancelPrefetching;
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@end
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