swift 如何在使用 Apple 登录时获取凭据

Question

我知道这个问题不是第一次问，但我卡住了... 我尝试用苹果登录，但在获取用户数据时遇到问题，我的代码如下

import UIKit
import AuthenticationServices
class SignInWithAppleVC: UIViewController {
        
    override func viewDidLoad() {
        super.viewDidLoad()
        setupProviderLoginView()
    }
    
    func setupProviderLoginView() {
        let appleButton = ASAuthorizationAppleIDButton()
        
        appleButton.frame = CGRect(x: 20, y: (Int(UIScreen.main.bounds.size.height) - 150), width: (Int(UIScreen.main.bounds.size.width) - 40), height: 50)
        appleButton.addTarget(self, action: #selector(signInWithApple), for: .touchUpInside)
        self.view.addSubview(appleButton)
            }
    
    @objc func signInWithApple() {
        print("sign in with apple clicked")
        let appleIdProvider = ASAuthorizationAppleIDProvider()
        let request = appleIdProvider.createRequest()
        request.requestedScopes = [.email,.fullName]
        let authorizationController = ASAuthorizationController(authorizationRequests: [request])
        authorizationController.delegate = self
        authorizationController.presentationContextProvider = self
        authorizationController.performRequests()
    }
}

extension SignInWithAppleVC : ASAuthorizationControllerDelegate {
    
    func authorizationController(controller: ASAuthorizationController, didCompleteWithError error: Error) {
        let alert = UIAlertController(title: "ERROR", message: "\(error.localizedDescription)", preferredStyle: .alert)
        alert.addAction(UIAlertAction(title: "OK", style: .cancel, handler: nil))
        present(alert, animated: true, completion: nil)
    }
    
    func authorizationController(controller: ASAuthorizationController, didCompleteWithAuthorization authorization: ASAuthorization) {
        switch authorization.credential {
        case let credentials as ASAuthorizationAppleIDCredential:
            print(credentials.user)             // Here we get results only first time
            print(credentials.fullName?.givenName!)//
            print(credentials.fullName?.familyName)//
        
        //MARK: - Use credentials
        case let credintials as ASPasswordCredential :
            print(credintials.password)
        default:
            let alert = UIAlertController(title: "Apple SgnIn", message: "Something went wrong", preferredStyle: .alert)
            alert.addAction(UIAlertAction(title: "OK", style: .cancel, handler: nil))
            present(alert, animated: true, completion: nil)
        }
    }
}

extension SignInWithAppleVC : ASAuthorizationControllerPresentationContextProviding {
    
    func presentationAnchor(for controller: ASAuthorizationController) -> ASPresentationAnchor {
        return view.window!
    }
}

问题是，我只在第一次尝试时收到电子邮件、名字、姓氏。但每次下一次我都没有得到回应。我是否需要访问用户日期的钥匙串（如果是，那么如何）或任何其他解决方案？任何帮助，link，示例代码将不胜感激。提前致谢

Answer 1

根据 Apple 文档，您只会在第一次尝试时获得用户标识符、姓名和电子邮件地址信息，您需要将这些信息存储在服务器或本地数据库中以便下次访问。

新时代，当您使用相同的帐户登录时，您将只获得用户标识符，您需要从数据库中获取其他信息。

参考 Apple 文档：Link

swift 如何在使用 Apple 登录时获取凭据

How to get credentials on signIn with Apple in swift

keychain

user-data

ios

swift

apple-sign-in