Navigator and Provider conflict in flutter - flutter

Question

sending data between screen using Provider with Navigator concept make a conflict
error after the run
The following ProviderNotFoundError was thrown building SecondRoute(dirty):
Error: Could not find the correct Provider above this SecondRoute Widget
To fix, please:
Ensure the Provider is an ancestor to this SecondRoute Widget
Provide types to Provider
Provide types to Consumer
Provide types to Provider.of()
Always use package imports. Ex: `import 'package:my_app/my_code.dart';
Ensure the correct context is being used.
https://www.ideone.com/xHXK5m

Answer 1

you can pass data like this put data in class
RaisedButton(
child: Text(‘Send data to the second page’),
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => SecondPage(
data: data,
)),
);
},
),
and recieve data like this
class SecondPage extends StatelessWidget {
final Data data;
SecondPage({this.data});
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(‘Constructor — second page’),
),
body: Container(
padding: EdgeInsets.all(12.0),
alignment: Alignment.center,
child: Column(
children: <Widget>[
Container(
height: 54.0,
padding: EdgeInsets.all(12.0),
child: Text(‘Data passed to this page:’,
style: TextStyle(fontWeight: FontWeight.w700))),
Text(‘Text: ${data.text}’),
Text(‘Counter: ${data.counter}’),
Text(‘Date: ${data.dateTime}’),
],
),
),
);
}

Answer 2

You can try placing whatever Provider value you have above the MaterialApp and thus the navigation or, when you push to a second page, provide the value again. Providers are scoped to widget trees, so this is expected behavior.
As an example, to pass a value to another route, you could do something like
onPressed: () {
Navigator.of(context).push(MaterialPageRoute(builder: (context) {
final foo = 'foo';
Provider<String>.value(
value: foo,
child: NewPage(),
);
}));
},
And then just consume it like regular in the NewPage route.

Answer 3

Try this code:
MaterialApp(
title: 'Navigation Basics',
home: ChangeNotifierProvider(
builder: (context) => Data(),
child: FirstRoute(),
))
Delete ChangeNotifierProvider in FirstRoute