我已经使用 Firebase 实现了 gmail 登录,并且在按下具有操作 GIDSignIn.sharedInstance().signIn()
连接的自定义按钮后,我成功地能够让用户验证他的电子邮件。
但是,一旦用户允许基本配置文件访问,它就不会返回应用程序,它只会转到此屏幕:
有人知道如何在用户身份验证后让它返回到应用程序吗?这是我的控制台:
017-01-09 09:47:46.565367 Dog_Log[3922:829530] [MC] Reading from private effective user settings.
2017-01-09 09:47:53.702 Dog_Log[3922:] <FIRAnalytics/WARNING> Implementation of application:openURL:sourceApplication:annotation: not found. Please add the handler into your App Delegate. Class: Dog_Log.AppDelegate
最佳答案
问题:
警告告诉您无法找到 application(_:open:options:)
的实现:
2017-01-09 09:47:53.702 Dog_Log[3922:] <FIRAnalytics/WARNING> Implementation of application:openURL:sourceApplication:annotation: not found. Please add the handler into your App Delegate. Class: Dog_Log.AppDelegate
解决方案:
你可能忘记了要实现的application(_:open:options:)
方法,调用了其中的handle(_:sourceApplication:annotation:)
,这处理重定向到您的应用程序。你的 AppDelegate.swift
应该是这样的(提示在代码注释中):
import UIKit
import Firebase
import GoogleSignIn
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow?
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
// configure firebase
FIRApp.configure()
// configure google
GIDSignIn.sharedInstance().clientID = FIRApp.defaultApp()?.options.clientID
return true
}
func application(_ app: UIApplication, open url: URL, options: [UIApplicationOpenURLOptionsKey : Any] = [:]) -> Bool {
// handled to go back to application after google log in
let handled = GIDSignIn.sharedInstance().handle(url, sourceApplication:options[UIApplicationOpenURLOptionsKey.sourceApplication] as? String, annotation: [:])
return handled
}
// other methods
}
您制作的示例 ViewController 符合 GIDSignInUIDelegate 和 GIDSignInDelegate,以访问 signIn 方法并将其与自定义按钮的 @IBAction 一起使用:
import UIKit
import Firebase
import GoogleSignIn
class ViewController: UIViewController, GIDSignInUIDelegate, GIDSignInDelegate {
override func viewDidLoad() {
super.viewDidLoad()
// make the view controller the delegate
GIDSignIn.sharedInstance().uiDelegate = self
GIDSignIn.sharedInstance().delegate = self
}
// your action of the button to call the signIn method
@IBAction func pressGoogleSignInButton(_ sender: UIButton) {
GIDSignIn.sharedInstance().signIn()
}
func sign(_ signIn: GIDSignIn!, didSignInFor user: GIDGoogleUser!, withError error: Error!) {
if let error = error {
print("failed to log into google: ", error)
return
}
print("successfully logged into google ", user)
guard let idToken = user.authentication.idToken else { return }
guard let accessToken = user.authentication.accessToken else { return }
let credentials = FIRGoogleAuthProvider.credential(withIDToken: idToken, accessToken: accessToken)
FIRAuth.auth()?.signIn(with: credentials, completion: { (user, error) in
if let error = error {
print("Faild to create a firebase user with google account: ", error)
return
}
guard let uid = user?.uid else { return }
print("Successfully logged into firebase with google ", uid)
// redirect to the next screen after successful login
})
}
}
关于ios - Gmail 身份验证未返回到应用程序,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/41553921/