我是 iOS 开发的新手。我正在尝试将谷歌登录添加到我的应用程序中,但我遇到了一些问题。代码显示一些“使用未解析的标识符'isMFAEnabled”和“'AppDelegate' 类型的值没有成员'showTextInputPrompt'”。请帮助我。我正在关注这个文档- https://firebase.google.com/docs/auth/ios/google-signin#swift_9 enter image description here
import UIKit
import Firebase
import GoogleSignIn
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate,GIDSignInDelegate {
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
FirebaseApp.configure()
GIDSignIn.sharedInstance().clientID = FirebaseApp.app()?.options.clientID
GIDSignIn.sharedInstance().delegate = self
return true
}
func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
return GIDSignIn.sharedInstance().handle(url)
}
func sign(_ signIn: GIDSignIn!, didSignInFor user: GIDGoogleUser!, withError error: Error!) {
if let error = error {
print(error.localizedDescription)
return
}
guard let authentication = user.authentication else { return }
let credential = GoogleAuthProvider.credential(withIDToken: authentication.idToken,
accessToken: authentication.accessToken)
Auth.auth().signIn(with: credential) { (authResult, error) in
if let error = error {
let authError = error as NSError
if (isMFAEnabled && authError.code == AuthErrorCode.secondFactorRequired.rawValue) {
// The user is a multi-factor user. Second factor challenge is required.
let resolver = authError.userInfo[AuthErrorUserInfoMultiFactorResolverKey] as! MultiFactorResolver
var displayNameString = ""
for tmpFactorInfo in (resolver.hints) {
displayNameString += tmpFactorInfo.displayName ?? ""
displayNameString += " "
}
self.showTextInputPrompt(withMessage: "Select factor to sign in\n\(displayNameString)", completionBlock: { userPressedOK, displayName in
var selectedHint: PhoneMultiFactorInfo?
for tmpFactorInfo in resolver.hints {
if (displayName == tmpFactorInfo.displayName) {
selectedHint = tmpFactorInfo as? PhoneMultiFactorInfo
}
}
PhoneAuthProvider.provider().verifyPhoneNumber(with: selectedHint!, uiDelegate: nil, multiFactorSession: resolver.session) { verificationID, error in
if error != nil {
print("Multi factor start sign in failed. Error: \(error.debugDescription)")
} else {
self.showTextInputPrompt(withMessage: "Verification code for \(selectedHint?.displayName ?? "")", completionBlock: { userPressedOK, verificationCode in
let credential: PhoneAuthCredential? = PhoneAuthProvider.provider().credential(withVerificationID: verificationID!, verificationCode: verificationCode!)
let assertion: MultiFactorAssertion? = PhoneMultiFactorGenerator.assertion(with: credential!)
resolver.resolveSignIn(with: assertion!) { authResult, error in
if error != nil {
print("Multi factor finanlize sign in failed. Error: \(error.debugDescription)")
} else {
self.navigationController?.popViewController(animated: true)
}
}
})
}
}
})
} else {
print(error.localizedDescription)
return
}
// ...
return
}
// User is signed in
// ...
}
}
func sign(_ signIn: GIDSignIn!, didDisconnectWith user: GIDGoogleUser!, withError error: Error!) {
let firebaseAuth = Auth.auth()
do {
try firebaseAuth.signOut()
} catch let signOutError as NSError {
print ("Error signing out: %@", signOutError)
}
最佳答案
所以样板代码比你需要的要多。这是我对您的 AppDelegate 的评论。
专业提示:添加此行以保持登录
GIDSignIn.sharedInstance()?.restorePreviousSignIn()
(同时在类协议(protocol)中删除
GIDSignInDelegate
) extension AppDelegate: GIDSignInDelegate {
func sign(_ signIn: GIDSignIn!, didSignInFor user: GIDGoogleUser!, withError error: Error?) {
//handle sign-in errors
if let error = error {
if (error as NSError).code == GIDSignInErrorCode.hasNoAuthInKeychain.rawValue {
print("The user has not signed in before or they have since signed out.")
} else {
print("error signing into Google \(error.localizedDescription)")
}
return
}
// Get credential object using Google ID token and Google access token
guard let authentication = user.authentication else { return }
let credential = GoogleAuthProvider.credential(withIDToken: authentication.idToken,
accessToken: authentication.accessToken)
// Authenticate with Firebase using the credential object
Auth.auth().signIn(with: credential) { (authResult, error) in
if let error = error {
print("authentication error \(error.localizedDescription)")
}
}
}
}
我今天已经对此进行了测试,它目前正在运行(Swift 5/ios 13.6)。
关于ios - Firebase google登录身份验证AppDelegate-使用未解析的标识符 'isMFAEnabled',我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/62624288/