How to PUT image downloaded with ASIHTTPrequest in a UIImageView

i want to display an image downloaded with ASIHTTPrequest in a UIIamgeView . I tried this :

NSData *responseData = [request responseData];
    promotionPicture.image = responseData;

But don't work开发者_开发知识库 , incompatible type ... help Please

I believe you'll need to wrap the NSData in a UIImage:

promotionPicture.image = [UIImage imageWithData:responseData];