FirebaseAuthUI IOS - comment ajouter une image de fond d'écran de connexion?

Question

Je veux ajouter une image derrière les boutons de connexion de l'écran de connexion. Je reçois actuellement le message d'erreur suivant:

en raison de l'application Mettre fin exception uncaught 'NSInternalInconsistencyException', la raison: 'Impossible de charger NIB en paquet:' NSBundle < ...> avec le nom ...

Voici mon code:

En AppDelegate:

class AppDelegate: UIResponder, UIApplicationDelegate { 

    var window: UIWindow? 
    var authHandle: AuthStateDidChangeListenerHandle? 
    var userInfo:User! 

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool { 
     // Override point for customization after application launch. 
     FirebaseApp.configure() 

     //checkLoggedIn 
     authHandle = Auth.auth().addStateDidChangeListener { auth, user in 
      if let user = user { 
       self.userInfo = user 
      } else { 
       // No user is signed in. 
       self.login() 
      } 
     } 

     return true 
    } 

func login() { 
     let authUI = FUIAuth.defaultAuthUI() 
     authUI?.delegate = self as? FUIAuthDelegate 

     let providers: [FUIAuthProvider] = [ 
      FUIFacebookAuth() 
     ] 
     authUI?.providers = providers 

     // Present the auth view controller and then implement the sign in callback. 
     let authViewController = CustomAuthViewController(authUI: authUI!) 
     self.window?.rootViewController?.present(authViewController, animated: false, completion: nil) 
    } 

    func authPickerViewController(for authUI: FUIAuth) -> FUIAuthPickerViewController { 
     return CustomAuthViewController(nibName: "CustomAuthViewController", 
             bundle: Bundle.main, 
             authUI: authUI) 
    } 
} 

En CustomAuthViewController:

class CustomAuthViewController: FUIAuthPickerViewController { 

    override func viewDidLoad() { 
     super.viewDidLoad() 

     // Do any additional setup after loading the view. 

     let width = UIScreen.main.bounds.size.width 
     let height = UIScreen.main.bounds.size.height 

     let imageViewBackground = UIImageView(frame: CGRect(x: 0, y: 0, width: width, height: height)) 
     imageViewBackground.image = UIImage(named: "myimage") 

     // you can change the content mode: 
     imageViewBackground.contentMode = UIViewContentMode.scaleToFill 

     view.insertSubview(imageViewBackground, at: 0) 
    } 

Voyez-vous ce qui ne va pas? Je ne suis pas sûr que la fonction authPickerViewController devrait être dans mon AppDelegate, pouvez-vous confirmer que c'est OK?

Je trouve this poste et this one mais je ne peux pas le faire fonctionner. J'utilise Firebase-UI 4.1.1, mon flux de connexion fonctionne sans image de fond (donc sans CustomPickerViewController).

Merci,

Alex

Answer 1

C'est ce que mon override personnalisé ressemble:

import UIKit 
import FirebaseAuthUI 

class BizzyAuthViewController: FUIAuthPickerViewController { 


    override init(nibName: String?, bundle: Bundle?, authUI: FUIAuth) { 
     super.init(nibName: "FUIAuthPickerViewController", bundle: bundle, authUI: authUI) 
    } 

    required init?(coder aDecoder: NSCoder) { 
     super.init(coder: aDecoder) 
    } 

    override func viewDidLoad() { 
     super.viewDidLoad() 

     // Do any additional setup after loading the view. 

     let width = UIScreen.main.bounds.size.width 
     let height = UIScreen.main.bounds.size.height 

     let imageViewBackground = UIImageView(frame: CGRect(x: 0, y: 0, width: width, height: height)) 
     imageViewBackground.image = UIImage(named: "lavenderWithBees") 

     // you can change the content mode: 
     imageViewBackground.contentMode = UIViewContentMode.scaleAspectFill 

     view.insertSubview(imageViewBackground, at: 0) 

    } 

} 

Voici ce que ma fonction de connexion (à l'intérieur "ViewController.swift") ressemble à:

func login() { 

    //FirebaseApp.configure() 
    let authUI = FUIAuth.defaultAuthUI() 
    let providers: [FUIAuthProvider] = [FUIGoogleAuth(), FUIFacebookAuth()] 
    authUI?.providers = providers 
    authUI?.delegate = self as FUIAuthDelegate 

    let authViewController = BizzyAuthViewController(authUI: authUI!) 
    let navc = UINavigationController(rootViewController: authViewController) 
    self.present(navc, animated: true, completion: nil) 

}