适用于swift4中基于特定视图控制器的导航

   let app = UIApplication.shared
   let statusBarHeight: CGFloat = app.statusBarFrame.size.height

   let statusbarView = UIView(frame: CGRect(x: 0, y: 0, width: UIScreen.main.bounds.size.width, height: statusBarHeight))
   statusbarView.backgroundColor = UIColor.red
   view.addSubview(statusbarView)

对于swift 3

.plist

View controller-based status bar appearance = NO

AppDelegate.swift

  func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        // Custom statubar
        UIApplication.shared.isStatusBarHidden = false
        UIApplication.shared.statusBarStyle = .lightContent
        let statusBar: UIView = UIApplication.shared.value(forKey: "statusBar") as! UIView
        statusBar.backgroundColor = UIColor.gray

        return true
    }

另一种非常简单的方法是创建UINavigationController类的扩展。

因为重写preferredStatusBarStyle:方法不会工作，除非我们在UINavigationController类内部做它。

    extension UINavigationController {
        open override var preferredStatusBarStyle: UIStatusBarStyle {
            return .lightContent
        }
    }

如果有人想改变状态栏的电池和文本颜色，如下图所示:

您可以在appdelegate类中使用以下代码。

UINavigationBar.appearance().barTintColor = UIColor(red: 234.0/255.0, green: 46.0/255.0, blue: 73.0/255.0, alpha: 1.0)
UINavigationBar.appearance().tintColor = UIColor.white
UINavigationBar.appearance().titleTextAttributes = [NSAttributedString.Key.foregroundColor : UIColor.white]

斯威夫特4.2 嘿，我想分享一个解决方案，我从格雷格·格鲁米特的一篇关于这个神秘主题的好文章中得到的。

步骤1 正如其他人所提到的，添加到你的PLIST

View controller-based status bar appearance YES

步骤2在RootViewcontroller中添加如下

var statusBarHidden: Bool = false {
        didSet(newValue) {
            UIView.animate(withDuration: 0.1) {
                self.setNeedsStatusBarAppearanceUpdate()
            }
        }
    }

    override var prefersStatusBarHidden: Bool {
        return statusBarHidden
    }

    var vcStatusBarStyle: UIStatusBarStyle = .default {
        didSet(newValue) {
            UIView.animate(withDuration: 0.1) {
                self.setNeedsStatusBarAppearanceUpdate()
            }
        }
    }

    override var preferredStatusBarStyle: UIStatusBarStyle {
        return vcStatusbarStyle
    }

当更新属性statusBarHidden或vcStatusBarStyle时，它将调用setNeedsStatusBarAppearanceUpdate()，并将更新状态栏与prefersStatusBarHidden或preferredStatusBarStyle的新值。在我的情况下，我必须为容器视图控制器更新这些属性，这是可见的子视图控制器的父。我使用一个简单的委托方法做到了这一点。

protocol MainViewControllerDelegate {
    func updateStatusBarStyle(statBarStayle: UIStatusBarStyle)
    func toggleStatusBar(visable: Bool)
}

当然，当实例化childViewController(Visible VC)时，不要忘记将MainViewcontroller(Container VC)设置为它的委托。我有时会。：）

childViewController.delegate = self

然后在childViewController中，当需要更新状态栏时，我只调用委托方法。

self.delegate?.updateStatusBarStyle(statBarStayle: .default)

如上所述，Graig Grummitt详细介绍了这个解决方案，也与UINavigationControllers一起工作。链接这里:状态栏的神秘案例

请在“didFinishLaunchingWithOptions launchOptions:”Appdelegate类中使用此代码

UIApplication.shared.statusBarStyle = .lightContent let statusBar: UIView = UIApplication.shared.value(forKey: "statusBar") as! UIView if statusBar.responds(to: #selector(setter: UIView.backgroundColor)){ statusBar.backgroundColor = UIColor.black }

iOS 13

 var statusBarView: UIView = UIView()
        if #available(iOS 13.0, *) {
            let tag:UInt64 = 38482458385
            if let statusBar = UIApplication.shared.keyWindow?.viewWithTag(Int(tag)) {
                statusBar.backgroundColor = UIColor.red
                statusBarView = statusBar
            } else {
                let statusBar = UIView(frame: UIApplication.shared.statusBarFrame)
                statusBar.tag = Int(tag)
                UIApplication.shared.keyWindow?.addSubview(statusBar)
                statusBarView = statusBar
            }
        } else {
            statusBarView = (UIApplication.shared.value(forKey: "statusBar") as? UIView)!
            if statusBarView.responds(to: #selector(setter: UIView.backgroundColor)){
                statusBarView.backgroundColor = UIColor.red
            }
        }