Programmatically set the initial view controller using Storyboards

Question

How do I programmatically set the InitialViewController for a Storyboard? I want to open my storyboard to a different view depending on some condition which may

Answer 1

SWIFT 5

If you don't have a ViewController set as the initial ViewController in storyboard, you need to do 2 things:

1. Go to your project TARGETS, select your project -> General -> Clear the Main Interface field.
2. Always inside project TARGETS, now go to Info -> Application Scene Manifest -> Scene Configuration -> Application Session Role -> Item0 (Default Configuration) -> delete the storyboard name field.

Finally, you can now add your code in SceneDelegate:

func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
    // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
    // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
    // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
    guard let windowScene = (scene as? UIWindowScene) else { return }

    window = UIWindow(windowScene: windowScene)


    let storyboard = UIStoryboard(name: "Main", bundle: nil)
    // Make sure you set an Storyboard ID for the view controller you want to instantiate
    window?.rootViewController = storyboard.instantiateViewController(withIdentifier: identifier)
    window?.makeKeyAndVisible()

}