SceneDelegate with Conditional Storyboards - ios

Question

Prior to Xcode 11, one could conditionally set which Storyboard to start with on an iOS app inside AppDelegate. Now with the addition of SceneDelegate it is to my understanding that you can instantiate that same logic there, which I am having issues with.
If I set the Storyboard Name inside Application Scene Manifest I can get the app to always start on the same Storyboard, but I want to conditionally start on one of two Storyboards.
I've tried something like this both with Storyboard Name set and not set inside Application Scene Manifest but can't seem to get anything to work. Any Ideas?
func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
guard let _ = scene as? UIWindowScene else {return}
let storyboard: UIStoryboard
let initViewController: UIViewController
if (User.sharedInstance.isLoggedIn()) {
storyboard = UIStoryboard(name: "Main", bundle: nil)
initViewController = storyboard.instantiateViewController(withIdentifier: "MainTabs") as UIViewController
self.window?.rootViewController = initViewController
} else {
storyboard = UIStoryboard(name: "Login", bundle: nil)
initViewController = storyboard.instantiateViewController(withIdentifier: "LoginLanding") as UIViewController
self.window?.rootViewController = initViewController
}
self.window?.makeKeyAndVisible()
}

Answer 1

Looks like the problem is I wasn't setting the window with the scene.
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)
// if user is not logged in then don't use Main storyboard
if (!User.sharedInstance.isLoggedIn()) {
let storyboard = UIStoryboard(name: "Login", bundle: nil)
window?.rootViewController = storyboard.instantiateViewController(withIdentifier: "LoginLanding")
}
}