iOS I'm missing something with a common Cocoa design pattern.

[SERAPHRowen]

So, I've been writing an app based loosely on this tutorial:
http://developer.apple.com/library/...iPhoneCoreData01/Articles/01_StartingOut.html

My basic problem is, the AppDelegate creates the window and the navigation controller, but the add button for the navigation bar is created in the root view controller. I need the add button to push a view controller with the navigation bar. However, the view controller and the navigation bar are created and stored in the AppDelegate. The view controller I want is a xib I've setup in interface builder, and the delegate has an output link that references it. I tried setting the delegate of my root view controller to be the app delegate, but it doesn't appear to have a delegate member variable.

I feel like I'm missing something core to this language, since the example provided by apple seems to be oxymoronic ( but almost certainly isn't.) Feel free to give a "read up on X noob" response, I realize this is almost certainly some core misunderstanding I have about working in this environment. I'm just not sure where to start looking.

 

[robbieduncan]

You can access the app delegate from anywhere very easily via the shared UIApplication object.

 

[SERAPHRowen]

You can access the app delegate from anywhere very easily via the shared UIApplication object.

Thank you! Reading up on that now.

 

[dejo]

Normally, if you are within a viewController that's already on the nav-stack, you can simply call:

[self.navigationController pushViewController:[I]newViewController[/I] animated:YES];

 

[SERAPHRowen]

Normally, if you are within a viewController that's already on the nav-stack, you can simply call:

[self.navigationController pushViewController:[I]newViewController[/I] animated:YES];

Yeah, the problem I was having with that is that the view controller is still referenced in the delegate.

Reading up on UIApplication resolved my misunderstanding, and implementing accordingly resolved my issue. Thanks guys.

 

[dejo]

The view controller I want is a xib I've setup in interface builder...

Also, just to be clear, a view controller and a xib are two different, though sometimes related, things. So, saying a view controller is a xib is not really stating it correctly.