Swift 导航栏赢了'；推后不出现

我有一个登录和主视图控制器，在从loginVC移动到homeVC后，导航栏被隐藏了，我尝试了一些东西，但没有任何效果。。以下是我如何从登录移动到主页：

func handleLogin() {
    guard let email = self.mView.emailTxtField.text else { return }
    guard let pass = self.mView.passTxtField.text else { return }
    Service.shared.loginUser(email, pass) { (answer) in
        if answer == true {

            UserDefaults.standard.set(Auth.auth().currentUser?.uid, forKey:     USER_UID_KEY)
            let vc = HomeVC(collectionViewLayout: UICollectionViewFlowLayout())

            let transition = CATransition()
            transition.duration = 0.5
            transition.timingFunction = CAMediaTimingFunction(name: .easeInEaseOut)
            transition.type = .push
            transition.subtype = .fromTop
            self.navigationController?.view.layer.add(transition, forKey: kCATransition)
            self.navigationController?.pushViewController(vc, animated: false)

        }else {
            //TODO: SHOW ERROR
            print("CAN'T LOGIN ....")
        }
    }
}

---

当登录VC出现时，必须隐藏导航栏；当登录VC消失时，必须隐藏导航栏

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    navigationController?.setNavigationBarHidden(true, animated: animated)
}

override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(animated)
    navigationController?.setNavigationBarHidden(false, animated: animated)
}

---

您的主视图控制器是否正在调用

navigationController.setNavigationBarHidden（false，动画：true）

@Rudedog No。即使退出并返回应用程序（在保存用户登录后），导航栏也会显示。