Flutter - How to assign multiple ScrollControllers to hide ScrollNavigationBar?

[ghost]

I have a ScrollBottomNavigationBar that scrolls up or down when it has a ScrollController attached to it. However as my valueListenable only listens to one scrollController, I cannot assign multiple ScrollControllers with the same valueListenable.

This is my ScrollBottomNavigationBar

ValueListenableBuilder<int>(
      valueListenable: controller.bottomNavigationBar.tabNotifier,
      builder: (context, value, child) {
        return Scaffold(
          bottomNavigationBar: ScrollBottomNavigationBar(
            controller: taskController,
            items: [
              BottomNavigationBarItem(
                  icon: Icon(Icons.plus), label: 'Page1'),
              BottomNavigationBarItem(
                  icon: Icon(Icons.plus), label: 'Page2'),
              BottomNavigationBarItem(
                  icon: Icon(Icons.plus), label: 'Page3'),
            ],
          ),
          body: Column(
            children: [
              Expanded(
                child: Container(
                  child: IndexedStack(
                    index: value,
                    children: <Widget>[
                     Page1(),
                      Page2(),
                      Page3(),
                    ],
                  ),
                ),
              ),
            ],
          ),
        );
      })

This is my Page1() -

return Scaffold(
    body: ValueListenableBuilder<int>(
      valueListenable: controller.bottomNavigationBar.tabNotifier,
      builder: (context, tabIndex, child) => ListView.builder(
        controller: controller,
        itemBuilder: ...,
      ),
    ),
  );

This is my Page2()-

return Scaffold(
    body: ValueListenableBuilder<int>(
      valueListenable: controller.bottomNavigationBar.tabNotifier,
      builder: (context, tabIndex, child) => ListView.builder(
        controller: controller, //I cannot return the same controller here
        itemBuilder: ...,
      ),
    ),
  );

[greyovo]

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