如何将Google iOS登录单页示例AppDelegate.h协议->转换为segue to LoginPage ViewController AppDelegate.swift协议？

Question

谷歌在GitHub SignInSampleForPod.xcworkspace上的登录示例使用AppDelegate.hSignInViewController.m等协议创建了一个单页面登录。

然而，许多应用程序，如我的，更喜欢分割到登录页面，只有当用户做出需要验证的选择时。我只想要基本的谷歌个人资料信息和认证令牌。

我已经对谷歌iOS ClientID进行了足够的配置，这样我的LoginPage.swift就可以通过AppDelegate.swift显示谷歌登录按钮：

class AppDelegate: UIResponder, UIApplicationDelegate {

var window: UIWindow?

func application(
_ app: UIApplication,
open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]
) -> Bool {
var handled: Bool 
handled = GIDSignIn.sharedInstance.handle(url)
if handled {
  return true
}
// Handle other custom URL types.
// If not handled by this app, return false.
return false
}

func application(
_ application: UIApplication,
didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
) -> Bool {
GIDSignIn.sharedInstance.restorePreviousSignIn { user, error in
  if error != nil || user == nil {
    // Show the app's signed-out state.
  } else {
    // Show the app's signed-in state.
  }
}
return true
}

和LoginPage.swift：

class LoginViewController: UIViewController {
let signInConfig = GIDConfiguration.init(clientID: "foo-bar85.apps.googleusercontent.com")
override func viewDidLoad() {
    super.viewDidLoad()
GIDSignIn.sharedInstance.signIn(with: signInConfig, presenting: self) { user, error in
      guard error == nil else { return }
      guard let user = user else { return }

      let emailAddress = user.profile?.email

      let fullName = user.profile?.name
      let givenName = user.profile?.givenName
      let familyName = user.profile?.familyName

      let profilePicUrl = user.profile?.imageURL(withDimension: 320)
  }

​

​

所以我的问题是，下面显示基本个人资料信息的字段的AppDelegate.swift谷歌登录代码是什么：

    // Show the app's signed-out state.
  } else {
    // Show the app's signed-in state.

Answer 1

我可能不能很清楚地理解你的问题。但我正试图根据我的理解来回答。

您可以为所有与google登录相关的内容创建一个类(GoogleLoginManager)，并在UI中创建一个按钮，然后从按钮操作调用此方法(signIn)。

@IBAction func googleButtonAction(_ sender: Any) {
    
    GoogleLoginManager.shared.signIn(controller: self) { (profile) in
        print("GoogleLogin profile : \(String(describing: profile.name)), \(String(describing: profile.email))")
        
    } onFailure: { (error) in
        print("GoogleLogin error : \(String(describing: error.localizedDescription))")
    }
}

导入基础导入GoogleSignIn

类GoogleLoginManager: SocialLogin {

fileprivate var onSuccess : success?
fileprivate var onFailure : failure?

static let shared = GoogleLoginManager()
private override init() { }

func signIn(controller: UIViewController, onSuccess : @escaping success, onFailure : @escaping failure) {
    
    self.onSuccess = onSuccess
    self.onFailure = onFailure
    
    GIDSignIn.sharedInstance().clientID = GOOGLE_CLIENT_ID
    GIDSignIn.sharedInstance().delegate = self
    
    GIDSignIn.sharedInstance().presentingViewController = controller
    GIDSignIn.sharedInstance().signIn()
    
    // Automatically sign in the user.
    // GIDSignIn.sharedInstance()?.restorePreviousSignIn()
}

func signOut() {
    GIDSignIn.sharedInstance().signOut()
}

}

扩展GoogleLoginManager : GIDSignInDelegate {

func sign(_ signIn: GIDSignIn!, didSignInFor user: GIDGoogleUser!,
          withError error: Error!) {
    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 if (error as NSError).code == GIDSignInErrorCode.canceled.rawValue {
            print("user canceled the sign in request")
        }
        else {
            print("\(error.localizedDescription)")
        }
        self.onFailure?(error)
        return
    }
    var profile =  SocialProfileModel.init(user: user)
    profile.loginSuccess = true
    self.onSuccess?(profile)
}

func sign(_ signIn: GIDSignIn!, didDisconnectWith user: GIDGoogleUser!,
          withError error: Error!) {
    // Perform any operations when the user disconnects from app here.
    print("GIDSignIn : didDisconnectWith")
    
}

}

Answer 2

我只需要稍微修改一下上面的AppDelegate.swift -添加一个链接到以下操作的标准UIbutton -获得个人资料信息：

 @IBAction func LogInButtonTouched(_ sender: UIButton) {
  GIDSignIn.sharedInstance.signIn(with: signInConfig, presenting: self) { user, error in
      guard error == nil else { return }
      guard let user = user else { return }

      let emailAddress = user.profile?.email

      let fullName = user.profile?.name
      let givenName = user.profile?.givenName
      let familyName = user.profile?.familyName

      let profilePicUrl = user.profile?.imageURL(withDimension: 320)
    print("GoogleLogin profile : \(String(describing: user.profile?.name)), \(String(describing: user.profile?.email))")
  }
}