tablet-app/lib/main.dart

import 'package:flutter/material.dart';
import 'package:managerapi/api.dart';
import 'package:provider/provider.dart';
import 'package:tablet_app/Components/MainView/main_view.dart';
import 'package:tablet_app/client.dart';

import 'Components/Previous/previous_view.dart';
import 'Models/tabletContext.dart';
import 'app_context.dart';
import 'constants.dart';

void main() {
  String initialRoute;

  initialRoute = '/main';

  final MyApp myApp = MyApp(
    initialRoute: initialRoute,
    //context: localContext,
  );

  runApp(myApp);
}

class MyApp extends StatefulWidget {
  final String initialRoute;
  final TabletAppContext tabletAppContext;
  final clientAPI = Client();

  //final Context context;
  MyApp({this.initialRoute, this.tabletAppContext});

  // This widget is the root of your application.
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  Client clientAPI = new Client();

  TabletAppContext tabletAppContext;

  @override
  void initState() {
    if (widget.tabletAppContext == null) {
      tabletAppContext = new TabletAppContext();
      // store user info locally
      tabletAppContext.clientAPI = clientAPI;
      tabletAppContext.language = "FR";

      //appContext.setContext(tabletAppContext);

      /*List<SectionDTO> sections = await clientAPI.sectionApi.sectionGetFromConfiguration("60b1257a2939c9163c3f0921");
      print("number of sections " + sections.length.toString());
      sections.forEach((element) {
        print(element);
      });*/

    } else {
      tabletAppContext = widget.tabletAppContext;
    }
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return ChangeNotifierProvider<AppContext>(
      create: (_) => AppContext(tabletAppContext),
      child: MaterialApp(
        debugShowCheckedModeBanner: false,
        title: 'Tablet App Demo',
        initialRoute: widget.initialRoute,
        /*supportedLocales: [
          const Locale('en', 'US'),
          const Locale('fr', 'FR'),
        ],*/
        theme: ThemeData(
          primarySwatch: Colors.grey,
          scaffoldBackgroundColor: kBackgroundGrey,
          //fontFamily: "Vollkorn",
          textTheme: TextTheme(bodyText1: TextStyle(color: kMainRed)),
          visualDensity: VisualDensity.adaptivePlatformDensity,
        ),
        routes: {
          '/previous': (context) => PreviousViewWidget(title: 'Tablet App Demo Home Page'),
          '/main': (context) => MainViewWidget()
        }
      ),
    );
  }
}