Question

I am currently trying to set a UIImageView from a classB into classA.

But it seems that when i put a break point on the use of the UIImageView in classA it has not been set.

The code i am using is :-

rfshooterAppDelegate *delegate = (rfshooterAppDelegate *)[[UIApplication sharedApplication] delegate];
rfshooterViewController *controller = delegate.viewController;

[controller.hsvImage setImage:[self UIImageFromIplImage:hsv]];

Can anybody tell me what I could be doing wrong please?

Answer 1

Hard to tell much from this small snippet. A couple things to try.

1) In the debugger, make sure controller is not null.
2) Make sure you get something back from [self UIImageFromIplImage:hsv]
3) Make sure hsvImage is not null.
4) Is hsvImage connected to the correct IBOutlet in Interface Builder?