How can i call my provider model into initState method

Question

i have several widgets use my provider as a condition , and i need one call to access my provider to whole widget from init state instead of wrapping every widget into my provider and it's consumer

this is my provider

class ProviderForFiltter extends ChangeNotifier {
  bool isFiltterrr = true ;

  bool get isFiltter => isFiltterrr;

  void changeStatus(bool status){
    isFiltterrr = status;
    notifyListeners();
  }
}

this is my main.dart

class Myproject extends StatefulWidget {
  const Myproject ({Key? key}) : super(key: key);

  @override
  _Myproject State createState() => _Myproject State();
}

class _Myproject State extends State<Myproject > {



  @override
  Widget build(BuildContext context) {
    return  
      
          Provider(
               create: (BuildContext context) {
                return ProviderForFiltter();
               },
               child: const MaterialApp(
                  debugShowCheckedModeBanner: false,

                  home: WelcomeScreen()


            ),
             ),

    );
  }
}

this is my Stful Widget

ProviderForFiltter? isF ;
 @override
  void initState() {
    super.initState();
     // i tried this but it always give me errors that is isF  null value
     WidgetsBinding.instance?.addPostFrameCallback((timeStamp) {
      isF = context.read<ProviderForFiltter>();
    }); 
       // also itried this but it don't work 
    isF = Provider.of<ProviderForFiltter>(context, listen: false);
  }

  @override
  Widget build(BuildContext context) {




    return Scaffold(
      body: Text('change'),
    )

  }

}

in the fact i need to use it's bool value as condition into Consumer and change it

i hope any help guys

Solution

is better don't do use Provider in initState, but you can use Future.delayed because you need context

@override
  void initState() {
    super.initState();
     // i tried this but it always give me errors that is isF  null value

   Future.delayed(Duration(seconds: 1), () {
  
     WidgetsBinding.instance?.addPostFrameCallback((timeStamp) {
      isF = context.read<ProviderForFiltter>();
    }); 
       // also itried this but it don't work 
    isF = Provider.of<ProviderForFiltter>(context, listen: false);
   });
  }

Comments

[Tomas Ivan]

Have you tried section I have an exception when obtaining Providers inside initState. What can I do? in pub.dev/packages/provider page?

[Mohammed Hamdan]

thanks but do you think this code is deserve to be Answer!? 1000 seconds like really ? and which code exactly to put it as what you mentioned since i have no idea what is the code exactly

[Javad Zobeidi]

your provider code

[Mohammed Hamdan]

Can you please make favor to me and delete the answer , because no one would wait 1000 seconds , beside it didn't work too , and thank you so mush for trying to help Javad