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With AFNetworking, is very simple to download an image from a server and put into an UIImageView:
[imageView setImageWithURL:[NSURL URLWithString:@"http://i.imgur.com/r4uwx.jpg"] placeholderImage:[UIImage imageNamed:@"placeholder-avatar"]];
How about if I want to do this replacement of image with an effect (maybe fade)???
It's because I want to make a slideshow with a lot of images.