Ios 地图盒逐圈导航SDK地图不'；t在右角显示限速界面

Mapbox SDK未在右角显示限速UI。下面是代码

Direction.shared.calculate（选项）{（会话、结果）输入）{

        switch result {
        case .failure(let error):
            print(error.localizedDescription)
        case .success(let response):
            print("Response->", response)
            guard let route = response.routes?.first else {
                return
            }

            let navigationService = MapboxNavigationService(route: route, routeIndex: 0, routeOptions: routeOptions, simulating: .always)
            let navigationOptions = NavigationOptions(styles: [DayStyle()], navigationService: navigationService)
            let navigationViewController = NavigationViewController(for: route, routeIndex: 0, routeOptions: routeOptions, navigationOptions: navigationOptions)
            navigationViewController.modalPresentationStyle = .fullScreen
            navigationViewController.showsSpeedLimits = true
            self.present(navigationViewController, animated: true, completion: nil)
        }
   }