【Flutterの状態管理】テーマ切替&多言語化 〜provider,BLoC,reduxの3パターンで実現してみる① - Qiita

import 'package:flutter/material.dart'; import 'package:provider/provider.dart'; import 'package:state_dancer/provider/theme_state.dart'; import 'home_page.dart'; void main() { runApp(Wrapper(child: MyApp())); } class Wrapper extends StatelessWidget{ final Widget child; Wrapper({this.child}); @override Widget build(BuildContext context) { final initThemeData = ThemeData( primaryColor: Colors.green