如何以编程方式显示具有情节提要中定义的导航控制器和标签栏控制器的控制器？

Question

I'd like to show the tableview controller embedded in the navigation controller from the app delegate.

The reason I need to do this is I'm building a wrapper over an api, so to login I direct users to a relevant webpage where they can login to grant my app access to their credentials, then they are sent to a relevant url end point which triggers my app. At this point I want to load the tableviewcontroller in the navigation and tabbarcontroller.

Is it possible to define multiple entry points on storyboards?

A screenshot of my current storyboard configuration is shown here: https://www.dropbox.com/s/6wfo5werrs6vwy1/Screenshot%202014-10-09%2008.43.15.png?dl=0

Answer 1

You cannot define multiple entry points on storyboards. To achieve this, you should use [UIStoryboard instantiateViewControllerWithIdentifier:] and set the view controller to root view controller in your app delegate based on your condition.

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    NSString *identifier
    if (/* path A */){
        identifier = @"vc1";
    } else {
        identifier = @"vc2";
    }
    UIViewController *vc = [storyboard instantiateViewControllerWithIdentifier:identifier];
    self.window.rootViewController = vc;
    [self.window makeKeyAndVisible];
}