iOS 15 中的状态栏样式不变
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【中文标题】iOS 15 中的状态栏样式不变【英文标题】:Status bar style not changing in iOS 15 【发布时间】:2021-12-27 10:57:34 【问题描述】:我想根据屏幕内容更改状态栏样式。对于较暗的屏幕,状态栏内容应为白色。对于较亮的屏幕,状态栏内容应为黑色。
这个问题似乎只出现在 ios 15 设备上。
下面的屏幕截图比较了 iOS 15.2 和 iOS 14.5 上的相同用例
如您所见,即使导航栏样式设置为“黑色”,状态栏样式也是默认的
class ViewAController: UIViewController
override func viewDidLoad()
super.viewDidLoad()
// setup views ...
// setting navigation bar style doesn't work iOS 15. Needed to set UINavigationAppearance()
override func viewWillAppear(_ animated: Bool)
super.viewWillAppear(animated)
self.navigationController?.navigationBar.barTintColor = .white
self.navigationController?.navigationBar.barStyle = .default
self.navigationController?.navigationBar.titleTextAttributes = [.font: UIFont.boldSystemFont(ofSize: 18), .foregroundColor: UIColor.black]
if #available(iOS 15, *)
let appearance = UINavigationBarAppearance()
appearance.configureWithOpaqueBackground()
appearance.backgroundColor = .white
appearance.shadowImage = UIImage()
appearance.shadowColor = .clear
appearance.titleTextAttributes = [.font: UIFont.boldSystemFont(ofSize: 18), .foregroundColor: UIColor.black]
self.navigationItem.standardAppearance = appearance
self.navigationItem.scrollEdgeAppearance = appearance
@objc private func onClick(_ sender: UIButton)
let vc = ViewBViewController()
self.show(vc, sender: self)
class ViewBViewController: UIViewController
override func viewDidLoad()
super.viewDidLoad()
view.backgroundColor = .white
self.navigationItem.title = "View B"
override func viewWillAppear(_ animated: Bool)
super.viewWillAppear(animated)
self.navigationController?.navigationBar.isTranslucent = false
self.navigationController?.navigationBar.barTintColor = .black
self.navigationController?.navigationBar.barStyle = .black
self.navigationController?.navigationBar.titleTextAttributes = [.font: UIFont.boldSystemFont(ofSize: 18), .foregroundColor: UIColor.white]
// setting navigation bar style doesn't work iOS 15. Needed to set UINavigationAppearance()
if #available(iOS 15, *)
let appearance = UINavigationBarAppearance()
appearance.configureWithOpaqueBackground()
appearance.backgroundColor = .black
appearance.shadowImage = UIImage()
appearance.shadowColor = .clear
appearance.titleTextAttributes = [.font: UIFont.boldSystemFont(ofSize: 18), .foregroundColor: UIColor.white]
self.navigationItem.standardAppearance = appearance
self.navigationItem.scrollEdgeAppearance = appearance
【问题讨论】:
覆盖 var preferredStatusBarStyle: UIStatusBarStyle .lightContent 导航栏样式是死信。它不再重要,也可能不存在。这是因为状态栏内容主要响应用户风格(浅色模式或深色模式)。 @BenRockey 当 VC 使用 UINavigationController 包装时它不起作用。如果 VC 在 Navigation Controller 中,设置 preferredStatusBarStyle 不会改变状态栏样式。 @matt 有没有我在不设置 barStyle 的情况下更改状态栏主题?我已经尝试过preferredStatusBarStyle,如果VCs被包裹在UINavigationController中,它就不起作用了。 一个常见的策略是继承 UINavigationController 以便它咨询顶视图控制器。 【参考方案1】:使用此功能:
extension ViewBViewController
override var preferredStatusBarStyle: UIStatusBarStyle
.lightContent
【讨论】:
不幸的是,这在与 UINavigationController 一起使用时不起作用。以上是关于iOS 15 中的状态栏样式不变的主要内容,如果未能解决你的问题,请参考以下文章
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