Swift中的状态栏高度

如何在Swift中以编程方式获取状态栏的高度？

在Objective-C中，它是这样的：

[UIApplication sharedApplication].statusBarFrame.size.height.

Swift 2.x是否有任何问题：

UIApplication.sharedApplication().statusBarFrame.size.height

Swift 3或Swift 4：

UIApplication.shared.statusBarFrame.height

确保UIKit已导入

import UIKit

在iOS 13中，您将收到不赞成使用的警告”

在iOS 13.0中不建议使用“ statusBarFrame”：而是使用窗口场景的statusBarManager属性。

要解决此问题：

let height = view.window?.windowScene?.statusBarManager?.statusBarFrame.height ?? 0

Swift是另一种语言。API元素相同。也许是这样的：

let app = UIApplication.sharedApplication()
let height = app.statusBarFrame.size.height

更新的Answer支持Swift 13的iOS 13+和更旧的iOS版本

 func getStatusBarHeight() -> CGFloat {
    var statusBarHeight: CGFloat = 0
    if #available(iOS 13.0, *) {
        let window = UIApplication.shared.windows.filter {$0.isKeyWindow}.first
        statusBarHeight = window?.windowScene?.statusBarManager?.statusBarFrame.height ?? 0
    } else {
        statusBarHeight = UIApplication.shared.statusBarFrame.height
    }
    return statusBarHeight
}

编码愉快！

这是我用的：

struct Screen {
    static var width: CGFloat {
        return UIScreen.main.bounds.width
    }
    static var height: CGFloat {
        return UIScreen.main.bounds.height
    }
    static var statusBarHeight: CGFloat {
        return UIApplication.shared.statusBarFrame.size.height
    }
}

然后，您可以执行以下操作：

Screen.statusBarHeight

就像在Objective-C中一样：

var screenStatusBarHeight: CGFloat {
    return UIApplication.sharedApplication().statusBarFrame.height
}

它作为标准变量包括在：

https://github.com/goktugyil/EZSwiftExtensions

重做易卜拉欣的答案：

extension UIApplication {
    static var statusBarHeight: CGFloat {
        var statusBarHeight: CGFloat = 0
        if #available(iOS 13.0, *) {
            let window = shared.windows.filter { $0.isKeyWindow }.first
            statusBarHeight = window?.windowScene?.statusBarManager?.statusBarFrame.height ?? 0
        } else {
            statusBarHeight = shared.statusBarFrame.height
        }
        return statusBarHeight
    }
}

在我的swiftUI项目中，此方法有效。

import UIKit
import SwiftUI

class SceneDelegate: UIResponder, UIWindowSceneDelegate {
    
    var window: UIWindow?

    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
        let contentView = ContentView()
        if let windowScene = scene as? UIWindowScene {
            let window = UIWindow(windowScene: windowScene)
            
            if let statusBarHeight = window.windowScene?.statusBarManager?.statusBarFrame.height {
            SceneDelegateDataGetter.shared.height = statusBarHeight
            }
            
            window.rootViewController = HostingController(rootView: contentView)
            self.window = window
            window.makeKeyAndVisible()
        }
    }

class SceneDelegateDataGetter {
    static let shared = SceneDelegateDataGetter()
    
    public fileprivate(set) var height: CGFloat = 0
}

使用时

SceneDelegateDataGetter.shared.height