正在获取呈现视图控制器的名称

if let viewController = UIApplication.shared.keyWindow?.rootViewController {
    if let presentedViewController = viewController.presentedViewController {
        let presentedViewControllerName = String(describing: type(of: presentedViewController))
        print("当前呈现的视图控制器名称：\(presentedViewControllerName)")
    } else {
        let rootViewControllerName = String(describing: type(of: viewController))
        print("当前根视图控制器名称：\(rootViewControllerName)")
    }
}