How to download an image from the web and display it in an UIImageView?

How to download an image from the web and display it in an UIImageView? For example, I have an URL like: http://sstatic.net/so/apple-touch-icon.png

Would I need 开发者_如何学Goto mess around with NSURLConnection and the like, or is there a simple method that takes an web URL and downloads the image data automatically?

You can use NSData's dataWithContentsOfURL: class method to download the image data from the server, then just pass that data to UIImage's imageWithData:class method.

Here's an example:

NSData *imageData = [NSData dataWithContentsOfURL:[NSURL URLWithString:@"http://sstatic.net/so/apple-touch-icon.png"]];

UIImage *downloadedImage = [UIImage imageWithData:imageData];

myImageView.image = downloadedImage;