UIBlurEffect只在StatusBar上(不是在UINavigationBar上)

Question

类似于此：如何使导航条和状态栏变得模糊(UIBlurEffect)？iOS，Swift 3

但是我们只想在UIBlurEffect上应用StatusBar，而不是导航条。这个是可能的吗？

Answer 1

您可以通过以下代码获得statusBar视图，然后尝试添加到可视效果(如这里 )

     let statWindow = UIApplication.shared.value(forKey:"statusBarWindow") as! UIView
        let statusBar = statWindow.subviews[0] as UIView
//        statusBar.backgroundColor = UIColor(red: 23 / 255.0, green: 0 / 255.0, blue: 154 / 255.0, alpha: 0.7)
        statusBar.backgroundColor = UIColor(red: 213 / 255.0, green: 0 / 255.0, blue: 0 / 255.0, alpha: 0.7)

Answer 2

let statWindow = UIApplication.shared.value(forKey:"statusBarWindow") as! UIView
    let statusBar = statWindow.subviews[0] as UIView
    statusBar.backgroundColor = UIColor.clear
    let blur = UIBlurEffect(style:.dark)
    let visualeffect = UIVisualEffectView(effect: blur)
    visualeffect.frame = statusBar.frame
    //statusBar.addSubview(visualeffect)
    visualeffect.alpha = 0.5
    self.view.addSubview(visualeffect)

尝尝这个

Answer 3

iOS 14/iOS 13解决方案：通过遵循viewDidLoad中的代码，您可以获得statusBar模糊效果

override func viewDidLoad() {
    super.viewDidLoad()

let blurryEffect = UIBlurEffect(style: .regular)
    let blurredStatusBar = UIVisualEffectView(effect: blurryEffect)
    blurredStatusBar.translatesAutoresizingMaskIntoConstraints = false
    view.addSubview(blurredStatusBar)
    blurredStatusBar.leadingAnchor.constraint(equalTo: view.leadingAnchor).isActive = true
    blurredStatusBar.widthAnchor.constraint(equalTo: view.widthAnchor).isActive = true
    blurredStatusBar.topAnchor.constraint(equalTo: view.topAnchor).isActive = true
    blurredStatusBar.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor).isActive = true }

样本图像