title: iOS SDWebImage Cross Fade Effect UITableViewCell
body: <p>This is how i am successfully using SDWebImageManager to download the images:</p>
  
  <pre><code>- (void) downloadThumbnails:(NSURL *) finalUrl
  {
      SDWebImageManager *manager = [SDWebImageManager sharedManager];
      [manager downloadWithURL:finalUrl
                       options:0
                      progress:nil
                     completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished) {
  
                         if (image)
                         {
                             self.thumbnailURL = [finalUrl absoluteString];
                          }
                     }];
  }
  
  - (UIImage*)thumbnail {
  
      if (!self.thumbnailURL) return nil;
      return [[SDImageCache sharedImageCache] imageFromDiskCacheForKey:self.thumbnailURL];
  }
  </code></pre>
  
  <p>How can i modify to have a cross fade effect? Cross Fade Effect is the one that makes the image showing transition slowly just like the TechCrunch iOS App. Thanks!</p>
  
  <p><strong>UPDATE:</strong> If i can do anything else to have cross fade effect (other than SDWebImage) in uitableview cell than you can write it in the answer. </p>
  
  <p><strong>UPDATE:</strong> I have received few answers after my last update and i am able to solve the problem partially. Using transitionWithView as in the answer below, it is working and cross fading the way i want BUT since i am using a tableivew controller that is loading more entries when it touches the bottom, it refreshes all the cells once before the new block of entries are loaded, how can i prevent this behaviour? </p>