Shutter project scrollcontroller attached to multiple scroll views, failed assertion: line 109 POS 12 error handling

One 、 explain

I've been writing about flutter When the project is , In case of an error ：

The following assertion was thrown while handling a gesture:
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 109 pos 12: '_positions.length == 1'

Reasons for error reporting ：
1. Project added Drawer function , Need to pass through Drawer The menu item of Navigate to different pages .
2. Added BottomNavigationBar , adopt pagecontroller Navigate to different pages .
3. The project by Getx Do routing and state management .

Description of the problem ： adopt Drawer Navigate to settings or other pages , And then through Drawer Re navigate to Home page , Click on BottomNavigationBar Of item term Will appear
Failed assertion: line 109 pos 12: '_positions.length == 1’
Error notification of .

Two 、 Solution ：

1. Drawer Navigation Use Get.offAndToNamed(‘12313’); Way to jump .
2. Every time Jump to The homepage needs to be reinitialized pageController , adopt GetView Of build Method , Every time I redraw Home page interface , Reinitialize controller .

Specific operation ：
Drawer Navigation part code ：

class AppRouteProvide {
    
  Future onRouteTo(String routeName) {
    
    switch (routeName) {
    
      case Routes.Auth:
        Get.toNamed(Routes.Auth);
        break;
      case Routes.Home:
        Get.offAndToNamed(Routes.Home);
        break;
      case Routes.Help:
        Get.offAndToNamed(Routes.Help);
        break;
      case Routes.Splash:
        Get.toNamed(Routes.Splash);
        break;
      case Routes.Connect:
        Get.offAndToNamed(Routes.Connect);
        break;
      case Routes.Setting:
        Get.offAndToNamed(Routes.Setting);
        break;
    }
    return Future.value();
  }
}

Home page view Part of the code ：

class HomeScreen extends GetView<HomeController> {
    
  @override
  Widget build(BuildContext context) {
    
    // print('HomeScreen build');
    if (controller.pageController.hasClients) {
    
      controller.onClose();
      controller.onInit();
    }
    return AppbarWidgetScreen(
      body: _buildBody(context),
      bottomBar: _buildBottomNavigationBar(context),
    );
  }

Home page controller Part of the code

class HomeController extends GetxController {
    
  final ApiRepository apiRepository;
  RxInt selectedIndex = 0.obs;

  late PageController pageController;
  RxList<Widget> widgetPage = <Widget>[
    HomeMainScreen(),
    HomeBuyScreen(),
    HomeCertScreen(),
    HomeSellScreen(),
    HomeMineScreen(),
  ].obs;

  HomeController({
    required this.apiRepository});

  @override
  void onReady() {
    
    super.onReady();
  }

  @override
  void onInit() {
    
    print('HomeController onInit()');
    pageController = PageController(
      initialPage: selectedIndex.value,
      keepPage: true,
    );
    super.onInit();
  }

  @override
  void onClose() {
    
    super.onClose();
  }