FirebaseUI iOS刪除取消按鈕

Question

我是iOS開發的新手。 我想用Firebase建立授權。 我正在使用FirebaseUI-iOS。 我想隱藏初始屏幕上的取消按鈕。 你有什么想法怎么做嗎？

我以編程方式創建Firebase authViewController：

import UIKit
import Firebase
import FirebaseAuthUI
import FirebaseGoogleAuthUI

class AuthViewController: UIViewController {

fileprivate var _authHandle: FIRAuthStateDidChangeListenerHandle!
var user: FIRUser?

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

func configureAuth() {
    let provider: [FUIAuthProvider] = [FUIGoogleAuth()]
    FUIAuth.defaultAuthUI()?.providers = provider
    FUIAuth.defaultAuthUI()?.isSignInWithEmailHidden = true

    // listen for changes in the authorization state
    _authHandle = FIRAuth.auth()?.addStateDidChangeListener { (auth: FIRAuth, user: FIRUser?) in
        // check if there is a current user
        if let activeUser = user {
            // check if the current app user is the current FIRUser
            if self.user != activeUser {
                self.user = activeUser
                let name = user!.email!.components(separatedBy: "@")[0]
                print(name)
            }
        } else {
            // user must sign in
            self.loginSession()
        }
    }
}

func loginSession() {
    let authViewController = FUIAuth.defaultAuthUI()!.authViewController()
    present(authViewController, animated: true, completion: nil)
}

deinit {
    FIRAuth.auth()?.removeStateDidChangeListener(_authHandle)
}
}

Answer 1

擴展VC並將其添加到viewWillAppear中

extension FUIAuthBaseViewController{
  open override func viewWillAppear(_ animated: Bool) {
    self.navigationItem.leftBarButtonItem = nil
  }
}

Answer 2

為此，您可以在viewDidLoad或viewWillAppear leftBarButtonItem設置為nil 。

self.navigationItem.leftBarButtonItem = nil

Answer 3

你應該設置

FUIAuth.defaultAuthUI()?.shouldHideCancelButton = true

Answer 4

在Objective C中，只需擴展FUIAuthPickerView控制器即可。

在此擴展選取器視圖的ViewDidLoad中，添加以下兩行：

self.navigationController.navigationItem.hidesBackButton = NO;
[[self navigationItem] setLeftBarButtonItem:nil];

請注意，在您實例化Auth UI的文件中，您將需要以下方法：

- (FUIAuthPickerViewController *)authPickerViewControllerForAuthUI:(FUIAuth *)authUI {
return [[FUICustomAuthPickerViewController alloc] initWithAuthUI:authUI];
}