How to Save Tabs States in BottomNavigationBar in Flutter
Why Stack Overflow recommends it
Stack Overflow users link it when answering how to preserve widget state across BottomNavigationBar tabs in Flutter.
Recommended by 2 people across 2 different months, 2020 to 2022.
What it is
A short Flutter tutorial from the Neat Snippets channel showing how to keep each tab's state alive when switching pages in a BottomNavigationBar. It uses a PageView together with AutomaticKeepAliveClientMixin, with the full code available on GitHub.
What people said
Recommends Tayan · 2020-09 · Stack Overflow · on “How to preserve widget states in flutter, when navigating using BottomNavigationBar?”
Late to the party, but I've got a simple solution. Use the PageView widget with the AutomaticKeepAliveClientMixin . The beauty of it that it doesn't load any tab until you click on it. The page that includes the BottomNavigationBar : var _selectedPageIndex; List<Widget> _pages; PageController _pageController; @override void initState() { super.initState(); _selectedPageIndex = 0; _pages = [ //The individual tabs. ]; _pageController = PageController(initialPage: _selectedPageIndex); } @override void dispose() { _pageController.dispose(); super.dispose(); } @override Widget build(BuildContext context) { ... body: PageView( controller: _pageController, physics: NeverScrollableScrollPhysics(), c
Recommends Mercy · 2022-07 · Stack Overflow · on “Here Maps Navigate restarts Navigation on page change”
I finally found a way to solve it by saving the state of my Flutter pages. I used the PageView widget for the main.dart's scaffold body and AutomaticKeepAliveClientMixin on the pages I wanted to save the states of. You can check this YouTube video for how to implement this: [this video]
Cites Kolompos · 2022-11 · Stack Overflow · on “Flutter and Flame, how to keep FlameGame widget alive?”
Working on a game project where: I have a BottomNavigationBar navigating betwen my custom Widgets where one of them is a FlameGame. I don't want to unload and reload the widgets when player navigates as it will be frequent and expensive. I have followed this [this video] and now my custom Widgets are being preserved, except for the FlameGame. Tried adding AutomaticKeepAliveClientMixin. Wanted me to implement 12 overrides... Any suggestions?