flutter_app/lib/main.dart

import 'package:flutter/foundation.dart';
import 'package:flutter_app/cwtch/ffi.dart';
import 'package:flutter_app/cwtch/gomobile.dart';
import 'package:flutter/material.dart';
import 'package:flutter_app/errorHandler.dart';
import 'package:flutter_app/settings.dart';
import 'package:flutter_app/views/triplecolview.dart';
import 'package:provider/provider.dart';
import 'cwtch/cwtch.dart';
import 'cwtch/cwtchNotifier.dart';
import 'licenses.dart';
import 'model.dart';
import 'views/profilemgrview.dart';
import 'views/splashView.dart';
import 'dart:io' show Platform;
import 'opaque.dart';
import 'package:flutter_gen/gen_l10n/app_localizations.dart';

var globalSettings = Settings(Locale("en", ''), Opaque.dark);
var globalErrorHandler = ErrorHandler();

void main() {
  LicenseRegistry.addLicense(() => licenses());
  runApp(Flwtch());
}

class Flwtch extends StatefulWidget {
  final Key flwtch = GlobalKey();

  @override
  FlwtchState createState() => FlwtchState();
}

class FlwtchState extends State<Flwtch> {
  final TextStyle biggerFont = const TextStyle(fontSize: 18);
  Cwtch cwtch;
  bool cwtchInit = false;
  ProfileInfoState selectedProfile;
  String selectedConversation = "";
  var columns = [1]; // default or 'single column' mode
  //var columns = [1, 1, 2];
  AppModel appStatus;
  ProfileListState profs;

  @override
  initState() {
    super.initState();
    cwtchInit = false;

    profs = ProfileListState();
    var cwtchNotifier = new CwtchNotifier(profs, globalSettings, globalErrorHandler);

    if (Platform.isAndroid) {
      cwtch = CwtchGomobile(cwtchNotifier);
    } else {
      cwtch = CwtchFfi(cwtchNotifier);
    }

    cwtch.Start().then((val) {
      setState(() {
        cwtchInit = true;
      });
    });

    appStatus = AppModel(cwtch: cwtch);
  }

  ChangeNotifierProvider<ErrorHandler> getErrorHandlerProvider() => ChangeNotifierProvider.value(value: globalErrorHandler);
  ChangeNotifierProvider<Settings> getSettingsProvider() => ChangeNotifierProvider.value(value: globalSettings);
  Provider<FlwtchState> getFlwtchStateProvider() => Provider<FlwtchState>(create: (_) => this);
  ChangeNotifierProvider<ProfileListState> getProfileListProvider() => ChangeNotifierProvider(create: (context) => profs);

  @override
  Widget build(BuildContext context) {
    //appStatus = AppModel(cwtch: cwtch);

    return MultiProvider(
      providers: [getFlwtchStateProvider(), getProfileListProvider(), getSettingsProvider(), getErrorHandlerProvider()],
      builder: (context, widget) {
        Provider.of<Settings>(context).initPackageInfo();
        return Consumer<Settings>(
          builder: (context, opaque, child) => MaterialApp(
            locale: Provider.of<Settings>(context).locale,
            localizationsDelegates: AppLocalizations.localizationsDelegates,
            supportedLocales: AppLocalizations.supportedLocales,
            title: 'Cwtch',
            theme: mkThemeData(opaque),
            // from dan: home: cwtchInit == true ? ProfileMgrView(cwtch) : SplashView(),
            // from erinn: home: columns.length == 3 ? TripleColumnView() : ProfileMgrView(),
            home: cwtchInit == true ? (columns.length == 3 ? TripleColumnView() : ProfileMgrView()) : SplashView(),
          ),
        );
      },
    );
  }

  @override
  void dispose() {
    cwtch.dispose();
    super.dispose();
  }
}