Preserving state for TabView or PageView pages

Called AutomaticKeepAliveClientMixin in your State class.

class _SearchScreenState extends State<SearchScreen> with AutomaticKeepAliveClientMixin<SearchScreen>{

...

  @override
  Widget build(BuildContext context) { 
    // call this method
    super.build(context); 

    /// your widget here
  }

  @override
  bool get wantKeepAlive => true;

}