防止UIViewController从应用程序包中加载过时的XIB

Question

I have a UIViewController subclass in a shipping app whose UI has historically been loaded from a XIB file.

In order to resolve some iOS 7 compatibility problems, I've had to switch to building this screen programatically, hence the XIB is no longer required and I've deleted it from the project and done a clean build in Xcode.

However, when installing the new build over the top of the version on the App Store, I'm ending up with a double UI - it looks like the residual XIB file which will still exists in the app bundle for upgraded versions is getting loaded as well as my programatically-created version.

Does anyone know how to stop a UIViewController subclass from loading a stale XIB and only creating the view programatically?

I've tried temporarily commenting out the call to [super initWithNibName: nil bundle nil] in my initWithNibName:bundle: implementation (I know this is a bad thing to do - just trying things out to understand the problem better), but this has not helped.

Answer 1

Moving my programatic view creation code from viewDidLoad to loadView solved the problem; it seems implementing this method prevents the runtime from going looking for a XIB to load.

Answer 2

Don't use initWithNibName and just create your view like this :

myViewController = [[MyViewController alloc] init];

Next, in your viewDidLoad you can create all your UI elements programatically.