blocksでNSURLConnection

blocks便利ですね。
Twitterのように、UITableViewCellにアイコンを出すときはこれで楽できないかな。

    UIImageView *photo = (UIImageView *)[cell viewWithTag:3];
    NSString *photoUrl = @"http://xxxxxxxx";
    NSURL *url = [NSURL URLWithString:photoUrl];
    NSMutableURLRequest *req = [NSMutableURLRequest requestWithURL:url];
    NSOperationQueue *queue = [[NSOperationQueue alloc] init];

    [NSURLConnection sendAsynchronousRequest:req
                                       queue:queue
                           completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {
                               [photo performSelectorInBackground:@selector(setImage:)
                                                       withObject:[UIImage imageWithData:data]];
                           }];