全屏UIView,状态栏和导航栏覆盖在顶部

let fullScreenView = UIView(frame: UIScreen.main.bounds)

if #available(iOS 13.0, *) {
    let window = UIApplication.shared.windows.filter {$0.isKeyWindow}.first
    let statusBarHeight = window?.windowScene?.statusBarManager?.statusBarFrame.height ?? 0
    let navigationBarHeight = self.navigationController?.navigationBar.frame.height ?? 0
    fullScreenView.frame = CGRect(x: 0, y: -statusBarHeight - navigationBarHeight, width: UIScreen.main.bounds.width, height: UIScreen.main.bounds.height)
} else {
    let statusBarHeight = UIApplication.shared.statusBarFrame.height
    let navigationBarHeight = self.navigationController?.navigationBar.frame.height ?? 0
    fullScreenView.frame = CGRect(x: 0, y: -statusBarHeight - navigationBarHeight, width: UIScreen.main.bounds.width, height: UIScreen.main.bounds.height)
}

self.view.addSubview(fullScreenView)

fullScreenView.backgroundColor = UIColor.black.withAlphaComponent(0.5)