starwork_flutter/lib/main.dart

import 'dart:async';

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:starwork_flutter/base/app_initialization.dart';
import 'package:starwork_flutter/common/constant/cache_keys.dart';
import 'package:starwork_flutter/common/utils/shared_preferences_utils.dart';
import 'package:starwork_flutter/routes/app_routes.dart';

import 'app.dart';
import 'flavors.dart';

void main() async {
  F.appFlavor = Flavor.values.firstWhere(
    (element) => element.name == appFlavor,
  );

  await AppInitialization.initializeApp();

  var initRoute = await _handleInitialRoute();

  runApp(App(initialRoute: initRoute));
}

Future<String> _handleInitialRoute() async {
  var token = await SharedPreferencesUtils.getString(CacheKeys.token);
  if (token != null && token.isNotEmpty) {
    return AppRoutes.main;
  } else {
    return AppRoutes.login;
  }
}