SDWebImage/SDWebImageView.m

70 lines
1.6 KiB
Objective-C

/*
* 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 "SDWebImageView.h"
#import "SDImageCache.h"
#import "SDWebImageDownloader.h"
@implementation SDWebImageView
- (void)dealloc
{
[placeHolderImage release];
[downloader release];
[super dealloc];
}
#pragma mark RemoteImageView
- (void)setImageWithURL:(NSURL *)url
{
if (downloader != nil)
{
// Remove in progress downloader from queue
[downloader cancel];
[downloader release];
downloader = nil;
}
// Save the placeholder image in order to re-apply it when view is reused
if (placeHolderImage == nil)
{
placeHolderImage = [self.image retain];
}
else
{
self.image = placeHolderImage;
}
UIImage *cachedImage = [[SDImageCache sharedImageCache] imageFromKey:[url absoluteString]];
if (cachedImage)
{
self.image = cachedImage;
}
else
{
downloader = [[SDWebImageDownloader downloaderWithURL:url target:self action:@selector(downloadFinishedWithImage:)] retain];
}
}
- (void)downloadFinishedWithImage:(UIImage *)anImage
{
// Apply image to the underlaying UIImageView
self.image = anImage;
// Store the image in the cache
[[SDImageCache sharedImageCache] storeImage:anImage forKey:[downloader.url absoluteString]];
// Free the downloader
[downloader release];
downloader = nil;
}
@end