Provider sample use

provider_main.dart

import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:provider/provider.dart';
import 'package:stackover/model/sample.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MultiProvider(
        providers: [Provider<Color>(create: (_) => Colors.red)],
        child: MaterialApp(
          title: 'Flutter Demo',
          home: MYHomePage(),
        ));
  }
}

class MYHomePage extends StatefulWidget {
  @override
  _MYHomePageState createState() => _MYHomePageState();
}

class _MYHomePageState extends State<MYHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Provider.of<Color>(context),
    );
  }
}