Question

不允许我从应用程序委托文件中选择另一个视图控制器

我已经尝试过呈现ViewController

func sign(_ signIn: GIDSignIn!, didSignInFor user: GIDGoogleUser!, withError error: Error!) {
        if let authentication = user.authentication {
            let credential = GoogleAuthProvider.credential(withIDToken: authentication.idToken, accessToken: authentication.accessToken)

            Auth.auth().signInAndRetrieveData(with: credential) { (authResult, error) in
                if error != nil {
                    print(error!)
                } else{
                    print("user successfully signed in through GOOGLE! uid:\(Auth.auth().currentUser!.uid)")
                    print("signed in through AppDelegate")
                    performSegue(withIdentifier: "goToUsers", sender: self)
                    print("Done Segue")


            }
        }
    }
}

Answer 1

您无法从AppDelegate执行segue。

您应该执行以下操作，而不是performSegue：

let activityStoryboard = UIStoryboard(name: "Main", bundle: nil)
let vc = activityStoryboard.instantiateViewController(withIdentifier: "main-activity") 
window?.rootViewController = vc
window?.makeKeyAndVisible()

将“主要活动”替换为在情节提要中设置后要访问的视图控制器的标识符。

从googleSignIn进行身份验证后，如何从AppDelegate进行选择？

1 个答案: