Unit-Bloc-Apps/lib/main.dart

import 'dart:async';
import 'dart:io';
import 'package:location/location.dart';
import 'Utils/utils.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'Utils/keys.dart';
import 'package:http/http.dart';

import 'Pages/home_page.dart';
import 'Pages/login_page.dart';
import 'Pages/unit_list.dart';
import 'Pages/unit_details.dart';



Client http = Client();
SecurityContext clientContext = SecurityContext();
Util util = Util();
var prefs;
Location location = Location();
StreamSubscription? locationStream;
LocationData? currentPosisiton;
RouteObserver<PageRoute> routeObserver = RouteObserver<PageRoute>();




registerCert()async{
  ByteData bytes = await rootBundle.load('lib/cert/isrgrootx1.pem');
  clientContext = SecurityContext()
    ..setTrustedCertificatesBytes(bytes.buffer.asUint8List());
}

Future preLoad() async{
    prefs = await SharedPreferences.getInstance();
    await prefs?.setString(Keys.hostAddress, "https://tbg.thamringroup.web.id/ords/tbs/unit/v1");
    await prefs?.setString(Keys.restTokenAddress, "https://tbg.thamringroup.web.id/ords/tbs/oauth/token");
    await registerCert();
}

void main()async{
  WidgetsFlutterBinding.ensureInitialized();
  await preLoad();
  SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp])
      .then((_) {
    runApp(const MyApp());
  });
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      navigatorObservers: [routeObserver],
      title: 'Internal Unit Stocks',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: (prefs.getBool(Keys.loggedIn)??false)?const HomePage():const LoginPage(),
      routes: {
        '/home': (context) => const HomePage(),
        '/units' : (context) => new UnitsPage(),
        '/login' :(context) =>  const LoginPage(),
      },
    );
  }
}