iOS: Detect if the device is iPhone X family (frameless)

You could "fitler" for the top notch, something like:

var hasTopNotch: Bool {    if #available(iOS 11.0, tvOS 11.0, *) {        return UIApplication.shared.delegate?.window??.safeAreaInsets.top ?? 0 > 20    }    return false}

Swift 5, iOS 14 supported

Thanks to @Tanin and @DominicMDev, since keyWindow was deprecated in iOS 13 and the iPad Pro has non-zero safeAreaInsets, this works fine for me.

(Already tested on iPhone 8, iPhone 11 Pro and iPad Pro (11-inch)(2nd gen) Simulators)

extension UIDevice {    /// Returns `true` if the device has a notch    var hasNotch: Bool {        guard #available(iOS 11.0, *), let window = UIApplication.shared.windows.filter({$0.isKeyWindow}).first else { return false }        if UIDevice.current.orientation.isPortrait {            return window.safeAreaInsets.top >= 44        } else {            return window.safeAreaInsets.left > 0 || window.safeAreaInsets.right > 0        }    }}

Since keyWindow was deprecated in iOS 13, based on the solution to find keyWindow from here, this one works for me

extension UIDevice {    var hasNotch: Bool {        if #available(iOS 11.0, *) {            let keyWindow = UIApplication.shared.windows.filter {$0.isKeyWindow}.first            return keyWindow?.safeAreaInsets.bottom ?? 0 > 0        }        return false    }}