ios - 如何在 swift 3 中使用 FirebaseAuthUI

Question

如何在 swift 3 中正确使用 FirebaseAuthUI

到目前为止我尝试使用这个应用委托(delegate).swift

import UIKit
import CoreData
import Firebase
import FirebaseAuth
import GoogleSignIn
import FBSDKLoginKit


@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?

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

        return true
    }

    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()
    }

    func application(_ app: UIApplication, open url: URL, options: [UIApplicationOpenURLOptionsKey : Any] = [:]) -> Bool {

        let handled = FBSDKApplicationDelegate.sharedInstance().application(app, open: url, sourceApplication: options[UIApplicationOpenURLOptionsKey.sourceApplication] as! String, annotation: options[UIApplicationOpenURLOptionsKey.annotation])

        return handled || GIDSignIn.sharedInstance().handle(
            url,
            sourceApplication: options[UIApplicationOpenURLOptionsKey.sourceApplication] as! String,
            annotation: options[UIApplicationOpenURLOptionsKey.annotation])
    }

    // MARK: - Core Data stack

    lazy var persistentContainer: NSPersistentContainer = {
        /*
         The persistent container for the application. This implementation
         creates and returns a container, having loaded the store for the
         application to it. This property is optional since there are legitimate
         error conditions that could cause the creation of the store to fail.
        */
        let container = NSPersistentContainer(name: "Kwiz")
        container.loadPersistentStores(completionHandler: { (storeDescription, error) in
            if let error = error as NSError? {
                // Replace this implementation with code to handle the error appropriately.
                // fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.

                /*
                 Typical reasons for an error here include:
                 * The parent directory does not exist, cannot be created, or disallows writing.
                 * The persistent store is not accessible, due to permissions or data protection when the device is locked.
                 * The device is out of space.
                 * The store could not be migrated to the current model version.
                 Check the error message to determine what the actual problem was.
                 */
                fatalError("Unresolved error \(error), \(error.userInfo)")
            }
        })
        return container
    }()

    // MARK: - Core Data Saving support

    func saveContext () {
        let context = persistentContainer.viewContext
        if context.hasChanges {
            do {
                try context.save()
            } catch {
                // Replace this implementation with code to handle the error appropriately.
                // fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
                let nserror = error as NSError
                fatalError("Unresolved error \(nserror), \(nserror.userInfo)")
            }
        }
    }

}

//我的ViewController.swift

import UIKit
import Firebase
import FirebaseAuthUI
import FirebaseDatabaseUI
import FirebaseGoogleAuthUI
import FirebaseFacebookAuthUI
import FBSDKCoreKit
import FBSDKLoginKit

class ViewController: UIViewController, FIRAuthUIDelegate {

    var kFacebookAppID = "54b1f4cbd01223477eb54122caeec604"

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

    func checkLoggedIn() {
        FIRAuth.auth()?.addStateDidChangeListener { auth, user in
            if user != nil {
                // User is signed in.
            } else {
                // No user is signed in.
                self.login()
            }
        }
    }

    func login() {
        let authUI = FIRAuthUI.init(auth: FIRAuth.auth()!)
        let options = FIRApp.defaultApp()?.options
        let clientId = options?.clientID
        let googleProvider = FIRGoogleAuthUI(clientID: clientId!)
        let facebookProvider = FIRFacebookAuthUI(appID: kFacebookAppID)
        authUI?.delegate = self
        authUI?.providers = [googleProvider, facebookProvider]
        let authViewController = authUI?.authViewController()
        self.present(authViewController!, animated: true, completion: nil)
    }

    @IBAction func logoutUser(_ sender: AnyObject) {
        try! FIRAuth.auth()!.signOut()
    }

    func authUI(_ authUI: FIRAuthUI, didSignInWith user: FIRUser?, error: Error?) {
        if error != nil {
            //Problem signing in

        }else {
            login()

        }
    }

    func application(app: UIApplication, openURL url: NSURL, options: [String: AnyObject]) -> Bool {
        let sourceApplication = options[UIApplicationOpenURLOptionUniversalLinksOnly] as! String
        return FIRAuthUI.default()!.handleOpen(url as URL, sourceApplication: sourceApplication )
    }

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


}

但它给了我这个错误。 use of undeclared type 'FIRAuthUIDelegate

我读了这个iOS firebase: FIRAuthUIDelegate.authUI not being called但我不知道如何。

FirebaseAuthUI 文档在 obj-c https://github.com/firebase/FirebaseUI-iOS 中你能帮我看看如何使用 FirebaseAuthUI 或一个示例项目吗？谢谢

Answer 1

FirebaseUI-iOS/FirebaseAuthUI 问题中引用的文档现在包含 Swift 引用代码。 ViewController 中需要的协议(protocol)是来自 FirebaseUI-iOS 的 FUIAuthDelegate 而不是来自 firebase-ios-sdk 的 FIRAuthUIDelegate。