Screen transition method after completing authentication with Swifter (Twitter, Firestore)

I also asked you about teratail, but I will also ask you a question.

実現What I want to realize したい
I implement the Twitter login function using Swifter.
After the authentication is complete, I want to move on to the next View, but I don't know how to do it.
Could you please let me know?

[Error Contents]
I would like to make a screen transition using the code below.
The current code will return to the original screen after the authentication is completed on the screen below.

self.performSegue (withIdentifier: "gotoMain", sender:self)

[Code Affected]

import UIKit
import Firebase
import Swifter
import SafariServices

class LoginViewController:UIViewController, SFSafariViewControllerDelegate{

    @IBOutlet weak var emailTextField: UITextField!
    @IBOutlet weak var passwordTextField: UITextField!

    override func viewDidLoad(){
        super.viewDidLoad()
    }

    @ IBAction function twitterLoginButton(_sender:UIButton){
        letswifter=Swifter(consumerKey: "consumerKey", consumerSecret: "consumerSecret")
        swifter.authorize(withCallback:URL(string: "Callback URL")!, presentingFrom:self,
                          success: {accessToken, response in

                            guardlet accessToken=accessTokenelse{
                                return
                            }
                            self.performSegue(withIdentifier: "gotoMain", sender:self)
                            letoAuthToken=accessToken.key
                            let secret=accessToken.secret
                            let credential = TwitterAuthProvider.credential (withToken:oAuthToken, secret:secret)
                            Auth.auth().signIn(with:credential, completion:{(authResult, error)in   
                            })
        }, failure: {error in print(error)
        })
    }
}

参考Reference >
[iOS] Log in to Twitter using "Swifter" instead of TwitterKit

swift ios firebase

2022-09-30 11:17