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POUITableViewCell load images and reused cells
 

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    <p>i need to load from web/files some UIImages. I was searching and i found in other <a href="https://stackoverflow.com/questions/7852033/gcd-uitableview-asynchronous-load-images-wrong-cells-are-loaded-until-new-image">question</a> this code:</p> <pre><code> if (![[NSFileManager defaultManager] fileExistsAtPath:user.image]) { dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0ul); dispatch_async(queue, ^{ NSData *imageData =[NSData dataWithContentsOfURL:[NSURL URLWithString:user.imageURL]]; [imageData writeToFile:user.image atomically:YES]; dispatch_sync(dispatch_get_main_queue(), ^{ UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath]; UIImage *image = [UIImage imageWithData:imageData]; [self.imageFriends setObject:image forKey:[NSNumber numberWithInt:user.userId]]; cell.imageView.image = image; [cell setNeedsLayout]; NSLog(@"Download %@",user.image); }); }); cell.imageView.image=[UIImage imageNamed:@"xger86x.jpg"]; } else { NSLog(@"cache"); dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0ul); dispatch_async(queue, ^{ UIImage *image = [UIImage imageWithContentsOfFile:user.image]; //[self.imageFriends setObject:image forKey:[NSNumber numberWithInt:user.userId]]; dispatch_sync(dispatch_get_main_queue(), ^{ UITableViewCell *newCell = [tableView cellForRowAtIndexPath:indexPath]; newCell.imageView.image=image; [newCell setNeedsLayout]; }); }); } </code></pre> <p>But the problem is that when i scroll fast to bottom or top the images are loaded wrong and there is a short lag when it ends. </p> <p>So the question is.. how can i load the UIImages in the correct cell when i use queues to fetch them? Thanks!</p>
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