How to notify controller that download finished?
<p>I have a class that downloads an image with NSURLConnection. I'm new to ios so i was wondering how I can "notify" my ViewController that download has finished ? What "tool's" should I use ? </p>

<p>Clarification:</p>

<p>I have implemented all the callbacks of NsUrlConnection, my problem is how to notify ViewController, from my connectionDidFinishLoading that download has finished ?</p>
