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Editorial Team
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Asked: 2026-05-22T15:33:58+00:00

In application:didFinishLaunchingWithOptions: I initialize a UINavigationController . Later, I add the UINavigationController to the

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In application:didFinishLaunchingWithOptions: I initialize a UINavigationController. Later, I add the UINavigationController to the window:

[self.window addSubview:navigationController.view]

This all works fine. Now I added local notifications to my app and when the user responds to one, I would like to present a UIViewController. So I thought I could override application:didReceiveLocalNotification: and in there, use my navigationController:

[navigationController pushViewController:someVC animated:YES];

However, this does not work. I did some debugging and noticed that while navigationController is not nil, navigationController.view has no superview, so I assume it is not being displayed.

So, my question is: where should I push my UIViewController so that it gets displayed?

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1 Answer

  1. Editorial Team

    In your AppDelegate.h add this:

    //Under where you have <UIKit/UIKit.h>
extern NSString *localReceived;

    In your AppDelegate.m add this:

    //All the way on top where you import your viewControllers
NSString *localReceived = @"localReceived";

    In your AppDelegate.m in the - (void)application:(UIApplication *)app didReceiveLocalNotification:(UILocalNotification *)localNotification;
     method add this:

            [[NSNotificationCenter defaultCenter] postNotificationName:localReceived object:self];

    Make sure that your viewController is a navigationController

    If it’s not, do the following — Add this piece of code to your - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions:

        UINavigationController *nvcontrol = [[UINavigationController alloc] initWithRootViewController:viewController];

[window addSubview:nvcontrol.view];
[window makeKeyAndVisible];

    Now — in your viewController.m add this to your -viewDidLoad function

        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(localAction) name:localReceived object:nil];

    Make a -(void) localAction and in that method add your navigationController code to push to the next View Controller!

    Hope that works for you. Works like a charm for me

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