使用Swift中的hidesBackButton隐藏导航栏中的后退按钮

Question

我想在从一个视图转换到另一个视图时隐藏后退按钮.我读了关于这个问题的问题,每个答案都是"使用hidesBackButton".这个问题是:

• 当我把它放在viewDidLoad/viewWillAppear时,后退按钮箭头隐藏但字符串"Back"没有.

• 当我把它放在viewDidAppear中时,后退按钮消失但对用户可见

我怎样才能解决这个问题？

编辑:

以下是如何复制此问题(或错误？)
在Xcode中使用Swift创建一个新的Tabbed应用程序.在FirstViewController.swift中,使用performSegueWithIdentifier导航到第二个视图控制器.在SecondViewController.swift中使用hidesBackButton隐藏导航栏后退按钮,您将看到问题所在.

Answer 1

使用最新的Swift隐藏后退按钮:

self.navigationItem.setHidesBackButton(true, animated: false)

Answer 2

尝试添加此:

let backButton = UIBarButtonItem(title: "", style: .Plain, target: navigationController, action: nil)
navigationItem.leftBarButtonItem = backButton

Answer 3

您可以使用下面的代码隐藏后退按钮UINavigationBar.

斯威夫特3 ;

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    self.navigationItem.hidesBackButton = true
}

Answer 4

这对我有用

navigationController?.navigationBar.topItem?.hidesBackButton = true

Answer 5

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view.

    self.navigationController?.navigationBarHidden = false
    var button: UIButton = UIButton()
    button.setImage(UIImage(named: "person-icon.jpg"), forState: .Normal)
    button.frame = CGRectMake(0, 0, 25, 25)
    button.targetForAction("actioncall", withSender: nil)
    var rightItem:UIBarButtonItem = UIBarButtonItem()
    rightItem.customView = button
    self.navigationItem.rightBarButtonItem = rightItem

    let backButton = UIBarButtonItem(title: "", style: UIBarButtonItemStyle.Plain, target: navigationController, action: nil)
    navigationItem.leftBarButtonItem = backButton
}

override func viewWillAppear(animated: Bool) {
    let backButton = UIBarButtonItem(title: "", style: UIBarButtonItemStyle.Plain, target: navigationController, action: nil)
    navigationItem.leftBarButtonItem = backButton
}

Answer 6

尝试添加这个,这对我有用

navigationItem.hidesBackButton = true