BottomNavBar в Getx Flutter

Можно ли создать BottomNavBar в Getx как у GoRouter indexStackShell, чтобы не пересоздавать каждый раз при переходе на другой маршрут BottomNavBar и как лучше организовать маршрут ? Сейчас у меня в проекте при переходе на другой экран, не указанный в маршруте пересоздается BottomNavBar.

Или лучше совместить с GoRouter и разделить логику маршрута ?

class MainView extends StatefulWidget {
    const MainView({
        super.key,
        this.index
    });
    final int ? index;
    @override State < MainView > createState() => MainViewState();
}
class MainViewState extends State < MainView > with SingleTickerProviderStateMixin {
    late NavigationController controller;
    DateTime ? lastPress;
    @override void initState() {
        super.initState();
        Get.put(NavigationController());
        controller = Get.find < NavigationController > ();
        controller.tabController = TabController(length: controller.widgetOptions.length, vsync: this, initialIndex: widget.index ? ? 0);
    }
    @override void dispose() {
        controller.tabController ? .dispose();
        super.dispose();
    }
    Future < bool > closeApp() async {
        final now = DateTime.now();
        final bool closed = lastPress == null || now.difference(lastPress!) >
            const Duration(seconds: 5);
        if (closed) {
            if (controller.tabController!.index != 0) {
                controller.tabController!.index = 0;
                controller.activeTab.value = 0;
                return false;
            }
            lastPress = now;
            customSnack(context);
            return false;
        }
        return true;
    }
    @override Widget build(BuildContext context) {
        return Obx(() {
            int act = controller.tabController ? .index ? ? 0;
            if (widget.index != null) {
                act = widget.index!;
            }
            return PopScope(canPop: false, onPopInvokedWithResult: (isPop, result) async {
                final nav = Navigator.of(context);
                if (!isPop) {
                    final shouldPop = await closeApp();
                    if (shouldPop) {
                        Future.microtask(() {
                            if (nav.canPop()) {
                                nav.pop();
                            } else {
                                SystemNavigator.pop();
                            }
                        });
                    }
                }
            }, child: GestureDetector(onTap: () => FocusScope.of(context).unfocus(), behavior: HitTestBehavior.translucent, child: DefaultTabController(length: controller.widgetOptions.length, initialIndex: act, child: Scaffold(appBar: AppBar(titleSpacing: 20, leading: SizedBox.shrink(), leadingWidth: 0, title: ClipRect(child: Row(mainAxisAlignment: MainAxisAlignment.spaceBetween, children: [Row(children: [Builder(builder: (context) => InkWell(onTap: () {
                    Scaffold.of(context).openDrawer();
                }, child: Image.asset('assets/icon/burger.png'))), w(26), Image.asset('assets/image/logo.png', width: 70)]),
                if (controller.city.value.isNotEmpty) w(10),
                    if (controller.city.value.isNotEmpty) Expanded(child: InkWell(onTap: () {
                        showModalBottomSheet(context: Get.context!, isScrollControlled: true, useSafeArea: true, useRootNavigator: true, backgroundColor: Colors.white, shape: RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(20))), builder: (context) {
                            return CitySearch();
                        }).then((_) {
                            controller.filteredCities.value = controller.cities;
                            controller.filteredLocation.clear();
                        });
                    }, child: Padding(padding: const EdgeInsets.only(left: 30), child: Row(mainAxisAlignment: MainAxisAlignment.end, children: [Icon(Icons.location_on_rounded, color: Color(0xFF14BFFF)), w(6), Flexible(child: Text(controller.city.value, textAlign: TextAlign.right, maxLines: 1, overflow: TextOverflow.ellipsis, style: TextStyle(color: Color(0xFF14BFFF), fontSize: 16, fontWeight: FontWeight.w600)))]))))
            ]))), body: TabBarView(controller: controller.tabController, physics: const NeverScrollableScrollPhysics(), children: controller.widgetOptions), drawer: MenuView(controller: controller), backgroundColor: Color(0xFFF0F0F0), bottomNavigationBar: NavMenuView()))));
        });
    }
}