UIImageView+WebCache.m
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/*
* This file is part of the SDWebImage package.
* (c) Olivier Poitrey <rs@dailymotion.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
#import "UIImageView+WebCache.h"
#if SD_UIKIT || SD_MAC
#import "objc/runtime.h"
#import "UIView+WebCacheOperation.h"
#import "UIView+WebCache.h"
@implementation UIImageView (WebCache)
- (void)sd_setImageWithURL:(nullable NSURL *)url {
[self sd_setImageWithURL:url placeholderImage:nil options:0 progress:nil completed:nil];
}
- (void)sd_setImageWithURL:(nullable NSURL *)url placeholderImage:(nullable UIImage *)placeholder {
[self sd_setImageWithURL:url placeholderImage:placeholder options:0 progress:nil completed:nil];
}
- (void)sd_setImageWithURL:(nullable NSURL *)url placeholderImage:(nullable UIImage *)placeholder options:(SDWebImageOptions)options {
[self sd_setImageWithURL:url placeholderImage:placeholder options:options progress:nil completed:nil];
}
- (void)sd_setImageWithURL:(nullable NSURL *)url completed:(nullable SDExternalCompletionBlock)completedBlock {
[self sd_setImageWithURL:url placeholderImage:nil options:0 progress:nil completed:completedBlock];
}
- (void)sd_setImageWithURL:(nullable NSURL *)url placeholderImage:(nullable UIImage *)placeholder completed:(nullable SDExternalCompletionBlock)completedBlock {
[self sd_setImageWithURL:url placeholderImage:placeholder options:0 progress:nil completed:completedBlock];
}
- (void)sd_setImageWithURL:(nullable NSURL *)url placeholderImage:(nullable UIImage *)placeholder options:(SDWebImageOptions)options completed:(nullable SDExternalCompletionBlock)completedBlock {
[self sd_setImageWithURL:url placeholderImage:placeholder options:options progress:nil completed:completedBlock];
}
- (void)sd_setImageWithURL:(nullable NSURL *)url
placeholderImage:(nullable UIImage *)placeholder
options:(SDWebImageOptions)options
progress:(nullable SDWebImageDownloaderProgressBlock)progressBlock
completed:(nullable SDExternalCompletionBlock)completedBlock {
[self sd_internalSetImageWithURL:url
placeholderImage:placeholder
options:options
operationKey:nil
setImageBlock:nil
progress:progressBlock
completed:completedBlock];
}
- (void)sd_setImageWithPreviousCachedImageWithURL:(nullable NSURL *)url
placeholderImage:(nullable UIImage *)placeholder
options:(SDWebImageOptions)options
progress:(nullable SDWebImageDownloaderProgressBlock)progressBlock
completed:(nullable SDExternalCompletionBlock)completedBlock {
NSString *key = [[SDWebImageManager sharedManager] cacheKeyForURL:url];
UIImage *lastPreviousCachedImage = [[SDImageCache sharedImageCache] imageFromCacheForKey:key];
[self sd_setImageWithURL:url placeholderImage:lastPreviousCachedImage ?: placeholder options:options progress:progressBlock completed:completedBlock];
}
#if SD_UIKIT
#pragma mark - Animation of multiple images
- (void)sd_setAnimationImagesWithURLs:(nonnull NSArray<NSURL *> *)arrayOfURLs {
[self sd_cancelCurrentAnimationImagesLoad];
NSPointerArray *operationsArray = [self sd_animationOperationArray];
[arrayOfURLs enumerateObjectsUsingBlock:^(NSURL *logoImageURL, NSUInteger idx, BOOL * _Nonnull stop) {
__weak __typeof(self) wself = self;
id <SDWebImageOperation> operation = [[SDWebImageManager sharedManager] loadImageWithURL:logoImageURL options:0 progress:nil completed:^(UIImage *image, NSData *data, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) {
__strong typeof(wself) sself = wself;
if (!sself) return;
dispatch_main_async_safe(^{
[sself stopAnimating];
if (sself && image) {
NSMutableArray<UIImage *> *currentImages = [[sself animationImages] mutableCopy];
if (!currentImages) {
currentImages = [[NSMutableArray alloc] init];
}
// We know what index objects should be at when they are returned so
// we will put the object at the index, filling any empty indexes
// with the image that was returned too "early". These images will
// be overwritten. (does not require additional sorting datastructure)
while ([currentImages count] < idx) {
[currentImages addObject:image];
}
currentImages[idx] = image;
sself.animationImages = currentImages;
[sself setNeedsLayout];
}
[sself startAnimating];
});
}];
@synchronized (self) {
[operationsArray addPointer:(__bridge void *)(operation)];
}
}];
}
static char animationLoadOperationKey;
// element is weak because operation instance is retained by SDWebImageManager's runningOperations property
// we should use lock to keep thread-safe because these method may not be acessed from main queue
- (NSPointerArray *)sd_animationOperationArray {
@synchronized(self) {
NSPointerArray *operationsArray = objc_getAssociatedObject(self, &animationLoadOperationKey);
if (operationsArray) {
return operationsArray;
}
operationsArray = [NSPointerArray weakObjectsPointerArray];
objc_setAssociatedObject(self, &animationLoadOperationKey, operationsArray, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
return operationsArray;
}
}
- (void)sd_cancelCurrentAnimationImagesLoad {
NSPointerArray *operationsArray = [self sd_animationOperationArray];
if (operationsArray) {
@synchronized (self) {
for (id operation in operationsArray) {
if ([operation conformsToProtocol:@protocol(SDWebImageOperation)]) {
[operation cancel];
}
}
operationsArray.count = 0;
}
}
}
#endif
@end
#endif