How do I get the status bar height in a third party keyboard? (iOS)

Question

I'm making a keyboard for iOS and need to detect when the status bar changes height in order to be able to update my keyboard accordingly (ie when the user gets a call). Unfortunately, UIApplication.sharedApplication() is not available in third party extensions and I am unable to get the height this way. Is it possible to grab it in any other way? Thanks!

Answer 1

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)

    let navigationController: UINavigationController = .init()
    view.addSubview(navigationController.view)

    let statusBarHeight = navigationController.view.readableContentGuide.layoutFrame.origin.y

    print(statusBarHeight) // 44.0 (iPhone X) / 20.0 (iPhone SE)

    navigationController.view.removeFromSuperview()
}