AWS Cognito iOSログインデリゲートメソッド `didCompleteStepWithError`が呼び出されていません

Question

代理人メソッドdidCompleteStepWithErrorは起動されませんが、迅速なiOSアプリケーションでAWS Cognitoログインを実装しています。

CognitoLoginViewController

class CognitoLoginViewController: UIViewController, AWSCognitoIdentityPasswordAuthentication { 

    @IBOutlet weak var txtEmail: UITextField! 
    @IBOutlet weak var txtPassword: UITextField! 

    var user: AWSCognitoIdentityUser? 
    var pool: AWSCognitoIdentityUserPool? 
    var passwordAuthenticationCompletion: AWSTaskCompletionSource<AWSCognitoIdentityPasswordAuthenticationDetails>? 

    override func viewDidLoad() { 
     super.viewDidLoad() 
    } 

    override func didReceiveMemoryWarning() { 
     super.didReceiveMemoryWarning() 
     // Dispose of any resources that can be recreated. 

    } 

    //MARK: - IBAction 
    @IBAction func login(_ sender: Any) { 
     if ((self.txtEmail.text?.isEmpty)! || (self.txtPassword.text?.isEmpty)!) { 
      let alertController = UIAlertController(title: "Missing information", 
                message: "Please enter a valid user name and password", 
                preferredStyle: .alert) 
      let retryAction = UIAlertAction(title: "Retry", style: .default, handler: nil) 
      alertController.addAction(retryAction) 
      self.navigationController?.present(alertController, animated: true, completion: nil) 
     } else { 
      let authDetails = AWSCognitoIdentityPasswordAuthenticationDetails(username: self.txtEmail.text!, password: self.txtPassword.text!) 
      self.passwordAuthenticationCompletion?.set(result: authDetails) 
     } 
    } 

    @IBAction func signup(_ sender: Any) { 
     let vc = CognitoSignUpViewController(nibName: "CognitoSignUpViewController", bundle: nil) 
     navigationController?.pushViewController(vc, animated: true) 
    } 

    @IBAction func forgotPassword(_ sender: Any) { 
     let vc = CognitoForgotPasswordViewController(nibName: "CognitoForgotPasswordViewController", bundle: nil) 
     navigationController?.pushViewController(vc, animated: true) 
    } 


    //MARK: - AWSCognitoIdentityPasswordAuthentication delegate methods 
    public func getDetails(_ authenticationInput: AWSCognitoIdentityPasswordAuthenticationInput, passwordAuthenticationCompletionSource: AWSTaskCompletionSource<AWSCognitoIdentityPasswordAuthenticationDetails>) { 
     self.passwordAuthenticationCompletion = passwordAuthenticationCompletionSource 
    } 

    public func didCompleteStepWithError(_ error: Error?) { 
     DispatchQueue.main.async { 
      if let error = error as? NSError { 
       let alertController = UIAlertController(title: error.userInfo["__type"] as? String, 
                 message: error.userInfo["message"] as? String, 
                 preferredStyle: .alert) 
       let retryAction = UIAlertAction(title: "Retry", style: .default, handler: nil) 
       alertController.addAction(retryAction) 

       self.present(alertController, animated: true, completion: nil) 
      } else { 
       self.txtEmail.text = nil 
       //self.dismiss(animated: true, completion: nil) 
      } 
     } 
    } 
} 

ボタンクリックがトリガされると、次の行が実行されています。

let authDetails = AWSCognitoIdentityPasswordAuthenticationDetails(username: self.txtEmail.text!, password: self.txtPassword.text!) 
self.passwordAuthenticationCompletion?.set(result: authDetails) 

AppDelegate

@UIApplicationMain 
class AppDelegate: UIResponder, UIApplicationDelegate { 

    var window: UIWindow? 
    var rootNavigationController : UINavigationController? 
    var loginViewController: CognitoLoginViewController? 

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool { 
     // Override point for customization after application launch. 
     navigationInit() 
     awsCognitoInit() 
     return true 
    } 

    func application(_ application: UIApplication, 
        open url: URL, sourceApplication: String?, annotation: Any) -> Bool { 
     return true 
    } 

    func awsCognitoInit(){ 
     let credentialsProvider = AWSCognitoCredentialsProvider(regionType: CognitoIdentityUserPoolRegion, 
                   identityPoolId: CognitoIdentityUserPoolId) 
     let serviceConfiguration = AWSServiceConfiguration(region: .USEast1, 
                  credentialsProvider: credentialsProvider) 
     let poolConfiguration = AWSCognitoIdentityUserPoolConfiguration(clientId: CognitoIdentityUserPoolAppClientId, 
                     clientSecret: CognitoIdentityUserPoolAppClientSecret, 
                     poolId: CognitoIdentityUserPoolId) 
     AWSLogger.default().logLevel = .verbose 
     AWSServiceManager.default().defaultServiceConfiguration = serviceConfiguration 
     AWSCognitoIdentityUserPool.register(with: serviceConfiguration, userPoolConfiguration: poolConfiguration, forKey: AWSCognitoUserPoolsSignInProviderKey) 
    } 

    func navigationInit() { 
     self.rootNavigationController = UINavigationController() 
     let loginViewController = LoginViewController() 
     self.rootNavigationController!.pushViewController(loginViewController, animated: false) 

     self.window = UIWindow(frame: UIScreen.main.bounds) 
     self.window!.rootViewController = rootNavigationController 
     self.window!.makeKeyAndVisible() 
    } 

    //MARK: - 
    func applicationWillResignActive(_ application: UIApplication) { 
     // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state. 
     // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game. 
    } 

    func applicationDidEnterBackground(_ application: UIApplication) { 
     // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later. 
     // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits. 
    } 

    func applicationWillEnterForeground(_ application: UIApplication) { 
     // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background. 
    } 

    func applicationDidBecomeActive(_ application: UIApplication) { 
     // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface. 
    } 

    func applicationWillTerminate(_ application: UIApplication) { 
     // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:. 
     // Saves changes in the application's managed object context before the application terminates. 
     self.saveContext() 
    }  
} 

が、私はしかし、申し込みを使用することができていますが、成功したパスワードやコードの確認を忘れてしまいました。また、上記の他の操作がうまく機能しているため、Cognitoの設定値は正しいです。

Answer 1

実際にpasswordAuthenticationCompletionオブジェクトを設定するためにgetDetailsが呼び出されましたか？通常、認証フローを起動させるには、userPool.currentUser().getSession()のようなものを実行する必要があります。これは、必要に応じてgetDetailsを呼び出します。アクティブなセッションまたはrefreshTokenが既にキャッシュされている場合は、それを使用します。