我如何隐藏导航栏从第一个ViewController或一个特定的ViewController在swift?

我在viewDidLoad()中使用了以下代码:

override func viewDidLoad() {
    super.viewDidLoad()
    self.navigationController?.isNavigationBarHidden = true
}

以及viewWillAppear:

override func viewWillAppear(animated: Bool) {
    self.navigationController?.isNavigationBarHidden = true
}

这两种方法都对所有viewcontroller隐藏导航控制器。


当前回答

在Swift中隐藏导航栏的方法:

self.navigationController?.setNavigationBarHidden(true, animated: true)
self.navigationController?.navigationBar.isHidden = true
self.navigationController?.isNavigationBarHidden = true

其他回答

     private func setupView() {
            view.backgroundColor = .white
            navigationController?.setNavigationBarHidden(true, animated: false)
        }

替代

在viewDidLoad中使用此设置

title = "Madman"
navigationController?.isNavigationBarHidden = false
navigationController?.navigationBar.prefersLargeTitles = true
navigationItem.largeTitleDisplayMode = .always

检查Collectionview, scrollview或tableView的约束

 NSLayoutConstraint.activate([
            tableView.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor),
            tableView.bottomAnchor.constraint(equalTo: view.bottomAnchor),
            tableView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
            tableView.trailingAnchor.constraint(equalTo: view.trailingAnchor)
        ])

我使用了上面的一个变体,并将应用程序的各个部分嵌入到不同的navcontroller中。这样,我就不必重置可见性。例如,在启动序列中非常有用。

你可以在viewWillDisappear中取消隐藏navigationController

override func viewWillDisappear(animated: Bool)
{
    super.viewWillDisappear(animated)
    self.navigationController?.isNavigationBarHidden = false
}

斯威夫特3

override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(animated)

    self.navigationController?.setNavigationBarHidden(false, animated: animated)
}

在Swift中隐藏导航栏的方法:

self.navigationController?.setNavigationBarHidden(true, animated: true)
self.navigationController?.navigationBar.isHidden = true
self.navigationController?.isNavigationBarHidden = true

如果您知道所有其他视图都应该有可见的条,您可以使用viewWillDisappear将它再次设置为可见。

迅速:

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)
}