set UIImageView.image in prepareForSegue

Question

I want to segue to a photoViewController that has an UIImageView. In flickrTVC, I say:

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{         


        

Answer 1

Your destination view controller hasn't loaded its view hierarchy by the time your source view controller receives the prepareForSegue:sender: message. So your destination VC's _imageView variable is nil.

The recommended approach is to store the image (or, probably even better, the image file name) as a property of the destination VC, and then set the image view's image in the destination VC's viewDidLoad or viewWillAppear: method.