I have an iPhone application which loads an image from an URL to an imageView control. I'm using this code:
NSURL * imageURL = [NSURL URLWithString:url];
NSData * imageData = [NSData dataWithContentsOfURL:imageURL];
i.image = [UIImage imageWithData:imageData];
Which code should I add in order to show the typical "waiting" icon (the typical animated icon which appears when you have to wait) while image is loading ?
I would like not to block user, I mean, I want to show this icon to let user know there is something in progress in this screen, but user should be able to interactuate with the view, for example going back to previous view by pressing a back button this view already has.
Thank you in advance.