Regroup/lib/main.dart

import 'dart:async';
import 'dart:io';
import 'package:connectivity_plus/connectivity_plus.dart';
import 'package:device_info_plus/device_info_plus.dart';
import 'package:firebase_core/firebase_core.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:get/get.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:regroup/Utils/dialogs.dart';
import 'package:regroup/Utils/Common/NoInternet.dart';
import 'package:regroup/firebase_options.dart';
import 'package:regroup/resources/routes/route_name.dart';
import 'package:regroup/resources/routes/routes.dart';

Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp(options: DefaultFirebaseOptions.currentPlatform);

  SystemChrome.setPreferredOrientations([
    DeviceOrientation.portraitUp,
  ]).then((value) =>
          // runApp(MyApp())
          runApp(const MyApp())

      // StatsFl(
      // align: Alignment.center,
      // width: 200,
      // height: 100,
      // child: const MyApp())),
      );
}

final streamController = StreamController.broadcast();

class MyApp extends StatefulWidget {
  const MyApp({super.key});

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> with WidgetsBindingObserver {
  // var _connectionStatus = ConnectivityResult.values.toString();
  // final Connectivity _connectivity = Connectivity();
  // late StreamSubscription<ConnectivityResult> _connectivitySubscription;

  List<ConnectivityResult> _connectionStatus = [ConnectivityResult.none];
  final Connectivity _connectivity = Connectivity();
  late StreamSubscription<List<ConnectivityResult>> _connectivitySubscription;

  // Future<void> checkInternet() async {
  //   final connectivityResult = await (Connectivity().checkConnectivity());

  //   if (connectivityResult == ConnectivityResult.wifi ||
  //       connectivityResult == ConnectivityResult.mobile) {
  //     setState(() {
  //       _connectionStatus = connectivityResult.toString();
  //       print("has internet");
  //     });
  //   } else {
  //     setState(() {
  //       _connectionStatus = connectivityResult.toString();
  //       print("no internet");
  //     });
  //   }
  // }

  Future<void> initConnectivity() async {
    late List<ConnectivityResult> result;
    // Platform messages may fail, so we use a try/catch PlatformException.
    try {
      result = await _connectivity.checkConnectivity();
      print("initconnectivitity");
    } on PlatformException catch (e) {
      print("errrror");
      print(e);
      return;
    }
    if (!mounted) {
      return Future.value(null);
    }

    return _updateConnectionStatus(result);
  }

  // Future<void> _updateConnectionStatus(List<ConnectivityResult> result) async {
  //   setState(() {
  //     _connectionStatus = result.toString();
  //   });

  //   // ignore: avoid_print
  //   print('Connectivity changed: $_connectionStatus');
  // }

  Future<void> _updateConnectionStatus(List<ConnectivityResult> result) async {
    // setState(() {
    //   _connectionStatus = result;
    // });

    if (result.contains(ConnectivityResult.wifi) ||
        result.contains(ConnectivityResult.mobile)) {
      setState(() {
        _connectionStatus = result;
        Get.back(result: true);
      });
    } else {
      setState(() {
        _connectionStatus = result;
        Get.toNamed(RouteName.nointernet);
      });
      // Get.toNamed(RouteName.nointernet);
    }
    // ignore: avoid_print
    print('Connectivity changed: $_connectionStatus');
  }

  Future<void> _getStoragePermission() async {
    DeviceInfoPlugin plugin = DeviceInfoPlugin();
    AndroidDeviceInfo android = await plugin.androidInfo;
    if (android.version.sdkInt < 33) {
      if (await Permission.storage.request().isGranted) {
        //  setState(() {
        //    permissionGranted = true;
        //  });
      } else if (await Permission.storage.request().isPermanentlyDenied) {
        await openAppSettings();
        await utils.showToast("Permission denied.");
      }
      // else if (await Permission.audio.request().isDenied) {
      //   //  setState(() {
      //   //    permissionGranted = false;
      //   //  });
      // }
    } else {
      if (await Permission.photos.request().isGranted) {
        // await utils.showToast("Permission granted.");
        // setState(() {
        //    permissionGranted = true;
        // });
      } else if (await Permission.photos.request().isPermanentlyDenied) {
        await openAppSettings();
        await utils.showToast("Permission denied.");
      } else if (await Permission.photos.request().isDenied) {
        await openAppSettings();
        await utils.showToast("Permission denied.");
        //  setState(() {
        //      permissionGranted = false;
        //  });
      }
    }
  }

  @override
  void initState() {
    initConnectivity();
    WidgetsBinding.instance.addObserver(this);
    _connectivitySubscription =
        _connectivity.onConnectivityChanged.listen(_updateConnectionStatus);

//do not remove this coomented code
    if (Platform.isAndroid) {
      _getStoragePermission();
    }
    super.initState();
  }

  @override
  void dispose() {
    _connectivitySubscription.cancel();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return ScreenUtilInit(
      builder: (BuildContext context, Widget? child) => GetMaterialApp(
        title: 'Regroup',
        theme: ThemeData(
          primarySwatch: Colors.grey,
          fontFamily: 'Cambria',
        ),
        debugShowCheckedModeBanner: false,
        initialRoute: RouteName.profiletabbusguest,
        getPages: AppRoutes.appRoutes(),
      ),
      designSize: const Size(390, 844),
    );
  }
}