How to send notification to all controllers in iOS

Question

I have an instance of NSObject that calls all web services by taking parameters. I want to catch 404 HTTP Error and take all controllers to a specific one. Is there any way except observe notification in all of them? Can AppDelegate help in this way?

Thanks guys!

Answer 1

I would suggest to Create a sub class of UIViewController and implement it in this subclass, then inherit all of your ViewControllers from that UIViewController subclass