Floating action button not moving up with snackbar flutter - flutter

Question

I am struggling making a FAB move up when a snackbar is showing.
Here is my set up.
I have my main page with a bottom navigation bar with 3 items.
The first item is basically a widget with a ListView and a floating action button.
Once you click an item of the list view, you navigate to a details page. If you then delete the item from the details page, you come back to the main page.
A snackbar then appears as a result from deleting the item.
The problem I have is that the snack bar is not moving up and hides the FAB.
It assumes it has something to do with context, but I don't know how.
If I move the FAB to the main page, the FAB goes up but it then hides last item of the listview.
Page with list view and FAB:
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
centerTitle: true,
title: Text(
title,
style: Theme.of(context).textTheme.titleMedium,
),
),
body: WidgetWithListView(),
floatingActionButton: FloatingActionButton.extended(
onPressed: () {
//do something
},
label: Text('label'),
icon: const Icon(Icons.add),
));
}
Main page:
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(appBarTitle,
style: Theme.of(context)
.textTheme
.titleLarge!
.copyWith(fontWeight: FontWeight.bold)),
actions: <Widget>[
IconButton(
icon: const Icon(some icon),
tooltip: 'some tooltip',
onPressed: () {
//do something;
},
),
]),
body: Center(
child: getBody(_selectedIndex),
),
bottomNavigationBar: BottomNavigationBar(
items: <BottomNavigationBarItem>[
BottomNavigationBarItem(
icon: const Icon(someIcon),
label: 'a label'y,
),
BottomNavigationBarItem(
icon: const Icon(someIcon),
label: 'a label',
),
BottomNavigationBarItem(
icon: const Icon(someIcon),
label: 'a label',
),
],
currentIndex: _selectedIndex,
type: BottomNavigationBarType.fixed,
onTap: _onItemTapped,
),
);
}
Thanks.