CODEWITHSUNDEEP
iphoneobjective-ciosuiapplicationdelegate
onkar
onkar

Reputation: 51

Application are expected to add rootViewController

I am creating a file when the app is activated. On the basis, of the presence of that file different views get loaded.

I am trying is

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    // Override point for customization after application launch.

    // Add the view controller's view to the window and display.
    if(condition true)
    {
        //[window addSubview:viewController.view];
        [self.window setRootViewController:viewController];
        [window makeKeyAndVisible];
        return YES;
    }else{
        //[window addSubview:signViewController.view];
        [self.window setRootViewController:secondViewController];
        [window makeKeyAndVisible];
        return YES;
    }

   // return YES;
}

Error I am getting is Application windows are expected to have a root view controller at the end of application launch

Upvotes: 1

Views: 383

Answers (3)

Durgaprasad
Durgaprasad

Reputation: 1951

Check if you have alloc and init for view controller. use viewController=[[ViewControllerName alloc]init];

I got same error when my viewController was not allocated.

Upvotes: 0

sunkehappy
sunkehappy

Reputation: 9091

You should firstly alloc and init your view controller before you use it.

if(condition true)
{
    //[window addSubview:viewController.view];
    viewController = [[ViewController alloc] init];
    [self.window setRootViewController:viewController];
    [window makeKeyAndVisible];
    return YES;
}else{
    //[window addSubview:signViewController.view];
    secondViewController = [[SecondViewController alloc] init];
    [self.window setRootViewController:secondViewController];
    [window makeKeyAndVisible];
    return YES;
}

Upvotes: 1

fibnochi
fibnochi

Reputation: 1113

just write 

[window makeKeyAndVisible];
    return YES;

after else or before }

Upvotes: 0

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