title: Multiple Navigation Controllers
body: <p>I am having trouble organizing the registration/login flow of my app. I currently have the storyboard entry point of the app pointing to a navigation controller. In <code>AppDelegate.m</code> if the user is <strong>not logged in</strong> have:</p>
  
  <pre><code>    SignUpViewController *signUpViewController = [[SignUpViewController alloc] init];
      self.navController = [[UINavigationController alloc] initWithRootViewController:signUpViewController];
      self.window.rootViewController = self.navController;
      [self.window makeKeyAndVisible];
  </code></pre>
  
  <p>This creates the 'sign up' navigation controller.</p>
  
  <p>I have tried to pop this <code>SignUpViewController</code> along with the Navigation Controller to get to the initial screen of the app (the navigation controller initially pointed to in the storyboard), but I have not had any success.</p>