iOS manual keyboard dismissal

SwiftUI_keyboard_dismiss_uikit_app_lifecycle.swift

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)
            window.rootViewController = UIHostingController(rootView: contentView)
            self.window = window
            window.makeKeyAndVisible()
            let tapGesture = UITapGestureRecognizer(target: window, action: #selector(UIView.endEditing))
            tapGesture.cancelsTouchesInView = false
            tapGesture.delegate = self
            tapGesture.name = "MyTapGesture"
            window.addGestureRecognizer(tapGesture)
        }
    }
}

extension SceneDelegate: UIGestureRecognizerDelegate {
    func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool {
        return false
    }
}