ios - 在 iOS (Swift) 上安装 FirebaseUI 的代码是什么

Question

我正在尝试安装 "drop-in" authentication solution来自 Firebase自动发送您的应用程序用户通过 Google、Facebook 或电子邮件/密码屏幕以对他们进行身份验证。

我的问题是 Firebase 提供的代码似乎是使用 Objective C 而不是 Swift 的旧 iOS 语言，而且一些 Swift 指导代码行似乎已经过时，而且我找不到新的行'应该使用。

我主要根据 Github 插入式解决方案这一部分的说明来构建我的代码:FirebaseUI Authentication .

这导致了以下代码，其中一些我不得不猜测，因为 Xcode 无法识别 .authUI() in let authUI = FIRAuthUI.authUI( )。该应用程序不会崩溃，但它也根本不会启动身份验证过程。这只是一个空白屏幕。

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

class LoginController: UIViewController, FIRAuthUIDelegate {

var db = FIRDatabaseReference.init()
var kFacebookAppID = "15839856152xxxxx"
var kGoogleClientID = "9042861xxxxx-6qq4gmeos07gpgmgt54ospv3fvpg0724.apps.googleusercontent.com"

override func viewDidLoad() {
    super.viewDidLoad()

    //FIRApp.configure()
    let authUI = FIRAuthUI.defaultAuthUI()

    let facebookAuthUI = FIRFacebookAuthUI(appID: kFacebookAppID)
    let googleAuthUI = FIRGoogleAuthUI(clientID: kGoogleClientID)
    //let emailAuthUI = FIREmailPasswordAuthProvider

    authUI?.providers = [facebookAuthUI, googleAuthUI]

    // Present the auth view controller and then implement the sign in callback.
    let authViewController = authUI
    authUI?.authViewController()

}

func authUI(authUI: FIRAuthUI, didSignInWithUser user: FIRUser?, error: NSError?) {
    if error != nil {
        //Problem signing in
    }else {
        //User is in!
    }
}

func application(app: UIApplication, openURL url: NSURL, options: [String: AnyObject]) -> Bool {
    let sourceApplication = options[UIApplicationOpenURLOptionsSourceApplicationKey] as! String
    return FIRAuthUI.defaultAuthUI()!.handleOpenURL(url, sourceApplication: sourceApplication ?? "") ?? false
}

}

另一方面，我将 FIRApp.configure() 放在 AppDelegate 类的“didFinishLaunchingWithOptions”函数中，并且我还分离了 FIRApp.configure() out 作为 AppDelegate 类中的重写，如下所示。似乎没有任何帮助。我花了大约 4 天时间试图弄清楚这一点。为 Web 和 Android 实现它只花了几个小时。

override init() {
    super.init()
    FIRApp.configure()
    //FIRDatabase.database().persistenceEnabled = true
}

Answer 1

我终于知道怎么做了!我创建了一个 video和 GIST展示如何去做，但我也会尝试在这里展示它。

首先，我将 Xcode 更新到版本 8，方法是单击“Apple App Store”，找到 Xcode，然后单击“更新”。下载需要一些时间。

其次，我通过在“didFinishLaunchingWithOptions”函数中添加 FIRApp.configure() 来更新 AppDelegate.swift。

第三，我将以下代码添加到我的 AppDelegate.swift 文件中:

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])
}

第四，我将我的 ViewController.swift 文件更新为这个(确保输入你自己的 Facebook 密码):

//  ViewController.swift
//  Bizzy Books
//
//  Created by Brad Caldwell on 9/23/16.
//  Copyright © 2016 Caldwell Contracting LLC. All rights reserved.
//

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

class ViewController: UIViewController, FIRAuthUIDelegate {

//var db = FIRDatabaseReference.init()
var kFacebookAppID = "PLACE YOUR 16-DIGIT FACEBOOK SECRET HERE (FOUND IN FIREBASE CONSOLE UNDER AUTHENTICATION)"

override func viewDidLoad() {
    super.viewDidLoad()

    //FIRApp.configure()
    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
        login()
    }else {
        //User is in! Here is where we code after signing in

    }
}

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 ) 
}


}

第五，我向我的 Info.plist 添加了几个代码块(您需要自定义 Facebook 和 Google 代码 - 请参阅 Jacob Sikorski's guide 了解更多信息。

<key>CFBundleURLTypes</key>
<array>
    <dict>
        <key>CFBundleURLSchemes</key>
        <array>
            <string>com.googleusercontent.apps.PLACE YOUR LONG CODE HERE ***(mine is 12 digits followed by a dash followed by 32 alpha-numeric characters)***</string>
            <string>PLACE YOUR FACEBOOK CODE HERE ***(mine said fb followed by 16 numbers)***</string>
        </array>
    </dict>
</array>

<key>LSApplicationQueriesSchemes</key>
    <array>
        <string>fbapi</string>
        <string>fbapi20130214</string>
        <string>fbapi20130410</string>
        <string>fbapi20130702</string>
        <string>fbapi20131010</string>
        <string>fbapi20131219</string>
        <string>fbapi20140410</string>
        <string>fbapi20140116</string>
        <string>fbapi20150313</string>
        <string>fbapi20150629</string>
        <string>fbapi20160328</string>
        <string>fbauth</string>
        <string>fbauth2</string>
        <string>fb-messenger-api20140430</string>
    </array>

应该是这样的。如果您有任何问题，请告诉我!