46 lines
1.5 KiB
Objective-C
46 lines
1.5 KiB
Objective-C
#import "UIImageView+WebImage.h"
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#import "MWMWebImage.h"
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#import <objc/runtime.h>
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static char kAssociatedObjectKey;
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@implementation UIImageView (WebImage)
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- (void)wi_setImageWithUrl:(NSURL *)url {
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[self wi_setImageWithUrl:url transitionDuration:0 completion:nil];
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}
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- (void)wi_setImageWithUrl:(NSURL *)url
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transitionDuration:(NSTimeInterval)duration
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completion:(void (^)(UIImage *, NSError *))completion {
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id<IMWMImageTask> task = [[MWMWebImage defaultWebImage] imageWithUrl:url
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completion:^(UIImage *image, NSError *error) {
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objc_setAssociatedObject(self, &kAssociatedObjectKey, nil, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
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if (!image) {
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if (completion) { completion(nil, error); }
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return;
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}
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if (duration > 0) {
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[UIView transitionWithView:self
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duration:duration
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options:UIViewAnimationOptionTransitionCrossDissolve
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animations:^{ self.image = image; }
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completion:nil];
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} else {
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self.image = image;
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}
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if (completion) { completion(image, nil); }
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}];
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objc_setAssociatedObject(self, &kAssociatedObjectKey, task, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
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}
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- (void)wi_cancelImageRequest {
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id<IMWMImageTask> task = objc_getAssociatedObject(self, &kAssociatedObjectKey);
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[task cancel];
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objc_setAssociatedObject(self, &kAssociatedObjectKey, nil, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
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}
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@end
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