123 lines
4.3 KiB
Objective-C
123 lines
4.3 KiB
Objective-C
// UIImageView+AFNetworking.m
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//
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// Copyright (c) 2011 Gowalla (http://gowalla.com/)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#import <Foundation/Foundation.h>
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#import <objc/runtime.h>
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#import "UIImageView+AFNetworking.h"
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#import "AFImageCache.h"
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static NSString * const kUIImageViewImageRequestObjectKey = @"imageRequestOperation";
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@interface UIImageView (_AFNetworking)
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@property (readwrite, nonatomic, retain) AFImageRequestOperation *imageRequestOperation;
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@end
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@implementation UIImageView (_AFNetworking)
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@dynamic imageRequestOperation;
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@end
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#pragma mark -
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@implementation UIImageView (AFNetworking)
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- (AFHTTPRequestOperation *)imageRequestOperation {
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return (AFHTTPRequestOperation *)objc_getAssociatedObject(self, kUIImageViewImageRequestObjectKey);
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}
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- (void)setImageRequestOperation:(AFImageRequestOperation *)imageRequestOperation {
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objc_setAssociatedObject(self, kUIImageViewImageRequestObjectKey, imageRequestOperation, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
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}
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+ (NSOperationQueue *)sharedImageRequestOperationQueue {
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static NSOperationQueue *_imageRequestOperationQueue = nil;
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if (!_imageRequestOperationQueue) {
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_imageRequestOperationQueue = [[NSOperationQueue alloc] init];
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[_imageRequestOperationQueue setMaxConcurrentOperationCount:6];
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}
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return _imageRequestOperationQueue;
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}
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#pragma mark -
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- (void)setImageWithURL:(NSURL *)url {
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[self setImageWithURL:url placeholderImage:nil];
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}
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- (void)setImageWithURL:(NSURL *)url
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placeholderImage:(UIImage *)placeholderImage
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{
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[self setImageWithURL:url placeholderImage:placeholderImage imageSize:self.frame.size options:AFImageRequestDefaultOptions];
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}
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- (void)setImageWithURL:(NSURL *)url
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placeholderImage:(UIImage *)placeholderImage
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imageSize:(CGSize)imageSize
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options:(AFImageRequestOptions)options
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{
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[self setImageWithURL:url placeholderImage:placeholderImage imageSize:imageSize options:options block:nil];
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}
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- (void)setImageWithURL:(NSURL *)url
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placeholderImage:(UIImage *)placeholderImage
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imageSize:(CGSize)imageSize
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options:(AFImageRequestOptions)options
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block:(void (^)(UIImage *image))block
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{
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if (!url) {
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return;
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}
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NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLCacheStorageAllowed timeoutInterval:30.0];
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[request setHTTPShouldHandleCookies:NO];
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[request setHTTPShouldUsePipelining:YES];
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UIImage *cachedImage = [[AFImageCache sharedImageCache] cachedImageForRequest:request imageSize:imageSize options:options];
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if (cachedImage) {
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self.image = cachedImage;
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if (block) {
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block(cachedImage);
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}
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} else {
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self.image = placeholderImage;
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self.imageRequestOperation = [AFImageRequestOperation operationWithRequest:request imageSize:imageSize options:options success:^(UIImage *image) {
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if ([[request URL] isEqual:[[self.imageRequestOperation request] URL]]) {
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self.image = image;
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} else {
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self.image = placeholderImage;
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}
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if (block) {
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block(image);
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}
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}];
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[[[self class] sharedImageRequestOperationQueue] addOperation:self.imageRequestOperation];
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}
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}
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@end
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