Storyboard with differing initial view controllers

Question

I have a problem with launching different views.

I have some kind of a tutorial. Therefore I have set this code in didFinishWithLaunchOptions:

if ([[NSUserDefaults standardUserDefaults] boolForKey:@"HasLaunchedOnce"]) {
        // Schon mal geöffnen. Kein Tutorial
    }
    else {

        [[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"HasLaunchedOnce"];
        [[NSUserDefaults standardUserDefaults] synchronize];
        // Wurde das erste mal geöffnet. Tutorial anzeigen!
    }

But I don't really know how to make it actually open the different views now. Couldn't find any documentation on it :(

I just want to open a tutorial viewController if its the first launch and if its not the initial viewController.

Marcin Kuptel · Answer 1 · 2013-05-12T12:49:07.297

1

UIViewController *controller = nil;

if ([[NSUserDefaults standardUserDefaults] boolForKey:@"HasLaunchedOnce"]) {
    controller = [HomeViewController alloc] initWithNibName: @"HomeViewController" bundle: nil];
}
else {

    [[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"HasLaunchedOnce"];
    [[NSUserDefaults standardUserDefaults] synchronize];
    // Wurde das erste mal geöffnet. Tutorial anzeigen!

    controller = [TutorialViewController alloc] initWithNibName: @"TutorialViewController" bundle: nil];
}

self.window.rootViewController = controller;

edited May 12 '13 at 12:49

answered May 12 '13 at 12:43

Marcin Kuptel

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The debugger tells me that it can't find my nibName?? – Constantin Jacob May 12 '13 at 23:03
If you initialize your view controller using a nib file, then you need to create one in IB and the name of the file needs to match the name you use in initWithNibName:bundle: – Marcin Kuptel May 13 '13 at 07:03

score 1 · Answer 2 · edited May 23 '17 at 12:29

Please take a look at this this question. I modified the answer to fit your case, you should put the following code in application:didFinishLaunchingWithOptions:

NSString *storyboardIdentifier;
if ([[NSUserDefaults standardUserDefaults] boolForKey:@"HasLaunchedOnce"]) {
    // Schon mal geöffnen. Kein Tutorial
    storyboardIdentifier = @"mainViewController";
} else {
    // Wurde das erste mal geöffnet. Tutorial anzeigen!
    [[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"HasLaunchedOnce"];
    [[NSUserDefaults standardUserDefaults] synchronize];
    storyboardIdentifier = @"tutorialViewController";
}

UIViewController *rootViewController = [[[[self window] rootViewController] storyboard] instantiateViewControllerWithIdentifier:storyboardIdentifier];
[[self window] setRootViewController:rootViewController];

Fogh · Answer 3 · 2014-12-28T14:47:33.010

0

For instantiating a viewcontroller from a storyboard the following will work:

UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];

TutorialViewController *controller = (TutorialViewController *)[mainStoryboard instantiateViewControllerWithIdentifier:@"TutorialViewControllerID"];

Remember to set a ID for the viewcontroller in your storyboard.

edited Dec 28 '14 at 14:47

answered May 12 '13 at 12:46

Fogh

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Storyboard with differing initial view controllers

3 Answers3