flutter_setup

1. Github Workflow Srategy

git checkout -b qa 
git checkout -b uat 
git checkout -b dev 
git checkout -b main //prod

2. Flutter version management

https://fvm.app/

brew tap leoafarias/fvm
brew install fvm
fvm install {{version}}
fvm global {{version}}
fvm use {{version}}

.vscode/settings.json

{
    "dart.flutterSdkPath": ".fvm/flutter_sdk",
    // Remove .fvm files from search
    "search.exclude": {
        "**/.fvm": true
    },
    // Remove from file watching
    "files.watcherExclude": {
        "**/.fvm": true
    }
}

.gitignore

.fvm/flutter_sdk

3. Flutter Flavor Setup

pubspec.yaml

dev_dependencies:
  flutter_test:
    sdk: flutter
  # https://pub.dev/packages/flutter_flavorizr
  flutter_flavorizr: ^2.2.1

flavorizr:
  ide: "vscode"
  app:
    android:
      flavorDimensions: "flavor"
  flavors:
    dev:
      app:
        name: "EcomApp"

      android:
        applicationId: "kyo.desu.ecomapp.dev"
        generateDummyAssets: true
        # icon: ""
        customConfig:
          applicationIdSuffix: '".development"'
          versionNameSuffix: '"Dev"'
          signingConfig: signingConfigs.dev
      ios:
        bundleId: "kyo.desu.ecomapp.dev"
        generateDummyAssets: true
        # icon: ""
        buildSettings:

    qa:
      app:
        name: "EcomApp"

      android:
        applicationId: "kyo.desu.ecomapp.qa"
        generateDummyAssets: true
        # icon: ""
        customConfig:
          applicationIdSuffix: '".qa"'
          versionNameSuffix: '"QA"'
          signingConfig: signingConfigs.qa
      ios:
        bundleId: "kyo.desu.ecomapp.qa"
        generateDummyAssets: true
        # icon: ""
        buildSettings:

    uat:
      app:
        name: "EcomApp"

      android:
        applicationId: "kyo.desu.ecomapp.uat"
        generateDummyAssets: true
        # icon: ""
        customConfig:
          applicationIdSuffix: '".uat"'
          versionNameSuffix: '"UAT"'
          signingConfig: signingConfigs.uat
      ios:
        bundleId: "kyo.desu.ecomapp.uat"
        generateDummyAssets: true
        # icon: ""
        buildSettings:

    prod:
      app:
        name: "EcomApp"

      android:
        applicationId: "kyo.desu.ecomapp"
        generateDummyAssets: true
        # icon: ""
        customConfig:
          signingConfig: signingConfigs.prod
      ios:
        bundleId: "kyo.desu.ecomapp"
        generateDummyAssets: true
        # icon: ""
        buildSettings:

Command

flutter pub run flutter_flavorizr

4. Configure Environment

lib/core/flavor/flavor.dart

enum Flavor {
  dev,
  qa,
  uat,
  prod,
}

lib/core/env/env_reader.dart

import 'package:flutter_dotenv/flutter_dotenv.dart';
import 'package:ecom_app/core/flavor/flavor.dart';

class EnvReader {
  String getEnvFileName(Flavor flavor) {
    return ".${flavor.name}.env";
  }
}

lib/main_dev.dart

Future<void> main() async {
  mainApp(Flavor.dev);
}

6. Flutter Riverpod Configuration

lib/core/env/env_reader.dart

import 'package:flutter_dotenv/flutter_dotenv.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';

import '../flavor/flavor.dart';

final envReaderProvider = Provider<EnvReader>((ref) {
  return EnvReader();
});

lib/main.dart

FutureOr<void> mainApp(Flavor flavor) async {
  // An object that stores the state of the providers and allows overriding the behavior of a specific provider.
  final container = ProviderContainer();

  final envReader = container.read(envReaderProvider);
  final envFile = envReader.getEnvFileName(flavor);
  await dotenv.load(fileName: envFile);

  runApp(
    UncontrolledProviderScope(
      container: container,
      child: const MainWidget(),
    ),
  );
}

7. Flutter Lint

include: package:flutter_lints/flutter.yaml

analyzer:
  plugins:
    #- dart_code_metrics
  exclude:
    - "**/**.g.dart"
    - "lib/**.g.dart"
    - "**/**.freezed.dart"
    - "lib/**.freezed.dart"
    - "lib/i18n/*"
    - "build/**"
    - "lib/generated/**"

  language:
    #strict-casts: true
    #strict-inference: true
    #strict-raw-types: true

errors:
  todo: ignore
  always_use_package_imports: error
  avoid_print: warning
  annotate_overrides: warning
  avoid_renaming_method_parameters: warning
  avoid_return_types_on_setters: warning
  avoid_returning_null_for_void: error
  avoid_unnecessary_containers: warning
  camel_case_types: error
  flutter_style_todos: warning
  invalid_annotation_target: ignore
  always_declare_return_types: warning
  unused_import: error
  require_trailing_commas: info
  sort_child_properties_last: warning
  no_leading_underscores_for_local_identifiers: info

linter:
  rules:
    always_use_package_imports: true
    avoid_print: true
    annotate_overrides: true
    avoid_renaming_method_parameters: true
    avoid_return_types_on_setters: true
    avoid_returning_null_for_void: true
    avoid_unnecessary_containers: true
    camel_case_types: true
    flutter_style_todos: true
    always_declare_return_types: true
    require_trailing_commas: true
    sort_child_properties_last: true
    library_private_types_in_public_api: false
    no_leading_underscores_for_local_identifiers: false

8. Logger

pubspec.yaml

  # https://pub.dev/packages/logging
  logging: ^1.2.0

lib/common/logger/logger_provider.dart

import 'package:flutter/foundation.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:logging/logging.dart';

final loggerProvider = Provider<SetupLogger>((ref) {
  return SetupLogger();
});

class SetupLogger {

  SetupLogger () {
    _init();
  }

  void _init() {
    if (kDebugMode) {

      Logger.root.level = Level.ALL;
      Logger.root.onRecord.listen((record) {

        if (record.level == Level.SEVERE) {
          debugPrint('${record.level.name}: ${record.time}: ${record.message}: ${record.error}: ${record.stackTrace}');
        } else if (record.level == Level.INFO) {
           debugPrint('${record.level.name}: ${record.message}');
        } else {
          debugPrint('${record.level.name}: ${record.time}: ${record.message}');
        }
      
      });

    } else {
      Logger.root.level = Level.OFF;
    }
  }
}
}

lib/base/base_state.dart

import 'package:flutter/material.dart';
import 'package:logging/logging.dart';

abstract class BaseState<T extends StatefulWidget> extends State<T> {
 
  Logger get log => Logger(T.toString());
 
  @override
  void initState() {
    log.info('$T initState');
    super.initState();
  }

  void init() {}

  @override
  void dispose() {
    log.info('$T dispose');
    super.dispose();
  }
}

lib/base/base_consumer_state.dart

import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:logging/logging.dart';

abstract class BaseConsumerState<T extends ConsumerStatefulWidget> extends ConsumerState<T> {
 
  Logger get log => Logger(T.toString());
 
  @override
  void initState() {
    log.info('$T initState');
    super.initState();
  }

  @override
  void dispose() {
    log.info('$T dispose');
    super.dispose();
  }
}

lib/main_widget.dart

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

  @override
  State<HomePage> createState() => _HomePageState();
}

class _HomePageState extends BaseState<HomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(body: Container());
  }
}

9. keytool

dev_dependencies:
  flutter_test:
    sdk: flutter
  # https://pub.dev/packages/flutter_dotenv
  flutter_dotenv: ^5.1.0

flutter:
  uses-material-design: true
  assets:
    - .dev.env
    - .qa.env
    - .uat.env
    - .prod.env

.dev.env

BASE_URL=api.dev.yamamoto.desu
API_KEY=1234567

lib/core/env/env_reader.dart

import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_setup/core/flavor/flavor.dart';

final envReaderProvider = Provider<EnvReader>((ref) {
  return EnvReader();
});

class EnvReader {
  String getEnvFileName(Flavor flavor) {
    return ".${flavor.name}.env";
  }
}

lib/main.dart

FutureOr<void> mainApp(Flavor flavor) async {
  final envFile = envReader.getEnvFileName(flavor);
  await dotenv.load(fileName: envFile);

10. Flutter Transiton Sheet

How to set up
https://github.com/roipeker/flutter_translation_sheet/wiki

pubspec.yaml

dependencies:
  flutter:
    sdk: flutter
  flutter_localizations:
    sdk: flutter

  flutter_translation_sheet: ^1.0.26
  intl:

flutter:
  # The following line ensures that the Material Icons font is
  # included with your application, so that you can use the icons in
  # the material Icons class.
  uses-material-design: true
  generate: true

Enable flutter translation sheet

flutter pub global activate flutter_translation_sheet

.zshrc

Export PATH="$PATH:/$HOME/Development/flutter/.pub-cache/bin"
Export PATH="$PATH:/$HOME/.pub-cache/bin"

See how to get your Google credentials to connect fts with Google Sheets. https://github.com/roipeker/flutter_translation_sheet/wiki/Google-credentials
Check how to Install fts on your system
https://github.com/roipeker/flutter_translation_sheet/wiki/Installation

fts run

trconfig.yaml

gsheets:
  credentials_path: credentials.json

  ## Open your google sheet and copy the SHEET_ID from the url:
  ## https://docs.google.com/spreadsheets/d/{SHEET_ID}/edit#gid=0
  spreadsheet_id: 1rU-ovy3_PLFHF_gl.....

  ## The spreadsheet "table" where your translation will live.
  worksheet: シート1

fts run

Delete all files in the l18n folder.

l10n.yaml

arb-dir: lib/l10n
template-arb-file: app_ja.arb
output-localization-file: app_localizations.dart

fts extract -s -p lib/ -o strings/strings.yaml

strings/strings.yaml

homeTitle: Flutter Demo Home Page
buttonPushMsg: "You have pushed the button {{counter}} times:"
increment: Increment
home: Home

trconfig.yaml

output_arb_template: lib/l10n/app_*.arb
entry_file: strings/strings.yaml

  ## Translation Key class and filename reference
  # keys_id: Strings

param_output_pattern: "{*}"

## Writes the locales for Android resources `resConfig()` in app/build.gradle
## And keeps locales_config.xml updated (for Android 33+)
#output_android_locales: true

dart:
  ## Output dir for dart files
  output_dir: lib/i18n

  output_fts_utils: true

  #fts_utils_args_pattern: {}

  ## Translation Key class and filename reference
  # keys_id: Strings

  ## Translations map class an filename reference.
  translations_id: TData

  ## translations as Dart files Maps (practical for hot-reload)
  use_maps: false

dependency_overrides:
  collection: ^1.17.2
  intl: ^0.18.0

fts run

Follow the Configuration guide
https://github.com/roipeker/flutter_translation_sheet/wiki/Configuration-setup

lib/main_widget.dart

import 'package:flutter_localizations/flutter_localizations.dart';

/// auto generated after you run `flutter pub get`
import 'package:flutter_gen/gen_l10n/app_localizations.dart';
import 'package:flutter_setup/i18n/i18n.dart';

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

    return MaterialApp(
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const HomePage(),
      supportedLocales: AppLocales.supportedLocales,
      locale: AppLocales.ja.locale,
      localizationsDelegates: const [
        AppLocalizations.delegate, // Add this line
        GlobalMaterialLocalizations.delegate,
        GlobalWidgetsLocalizations.delegate,
        GlobalCupertinoLocalizations.delegate,
      ],

flutter clean
fvm flutter pub get

lib/base/base_consumer_state.dart lib/base/base_state.dart

import 'package:flutter_gen/gen_l10n/app_localizations.dart';

abstract class BaseConsumerState<T extends ConsumerStatefulWidget>
    extends ConsumerState<T> {
  AppLocalizations get translation => AppLocalizations.of(context)!;
  Logger get log => Logger(T.toString());

11. Internet Connectivity

pubspec.yaml

  connectivity_plus: ^4.0.2
  internet_connection_checker: ^1.0.0+1

lib/core/providers/internet_connection_observer.dart

import 'dart:async';

import 'package:connectivity_plus/connectivity_plus.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:internet_connection_checker/internet_connection_checker.dart';

final internetConnectionObserverProvider = Provider<InternetConnectionObserver>(
  (ref) {
    final connection = InternetConnectionObserver(
      InternetConnectionChecker(),
      Connectivity(),
    );

    ref.onDispose(() {
      connection.hasConnectionStream.close();
    });

    return connection;
  },
);

class InternetConnectionObserver {
  final InternetConnectionChecker _internetConnectChecker;
  final Connectivity _connectivity;
  StreamController<bool> hasConnectionStream =
      StreamController<bool>.broadcast();

  InternetConnectionObserver(
    this._internetConnectChecker,
    this._connectivity,
  ) {
    _init();
  }

  Future<void> _init() async {
    _connectivity.onConnectivityChanged.listen((event) async {
      if (event == ConnectivityResult.mobile ||
          event == ConnectivityResult.wifi) {
        final isConnected = await _internetConnectChecker.hasConnection;
        hasConnectionStream.add(isConnected);
      } else {
        final isConnected = await _internetConnectChecker.hasConnection;
        hasConnectionStream.add(isConnected);
      }
    });
  }

  Future<bool> isNetworkConnected() async {
    final isConnected = await _internetConnectChecker.hasConnection;
    return isConnected;
  }
}

lib/main.dart

FutureOr<void> mainApp(Flavor flavor) async {
  WidgetsFlutterBinding.ensureInitialized();

  // An object that stores the state of the providers and allows overriding the behavior of a specific provider.
  final container = ProviderContainer();

  // Observer Internet Connection
  container.read(internetConnectionObserverProvider);

  runApp(
    UncontrolledProviderScope(

lib/main_widget.dart

class _MainWidgetState extends ConsumerState<MainWidget> {
  final GlobalKey<ScaffoldMessengerState> scaffoldMessengerKey =
      GlobalKey<ScaffoldMessengerState>();
  final GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();
  @override
  void initState() {
    super.initState();
    _isNetworkConnected();
    _networkConnectionObserver();
  }

  void _isNetworkConnected() async {
    final isConnected =
        await ref.read(internetConnectionObserverProvider).isNetworkConnected();
    if (!isConnected && mounted) {
      navigatorKey.currentState?.push(
        MaterialPageRoute(
          builder: (_) => const NoInternetConnectionScreen(),
        ),
      );
    }
  }

  void _networkConnectionObserver() {
    final connectionStream =
        ref.read(internetConnectionObserverProvider).hasConnectionStream.stream;
    connectionStream.listen((isConnected) {
      if (!isConnected && mounted) {
        _showSnackbar();
      }
    });
  }

  void _showSnackbar() {
    scaffoldMessengerKey.currentState?.clearSnackBars();
    scaffoldMessengerKey.currentState?.showSnackBar(
      const SnackBar(
        content: Text("No internet connection"),
        duration: Duration(seconds: 3),
        behavior: SnackBarBehavior.floating,
      ),
    );
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      navigatorKey: navigatorKey,
      scaffoldMessengerKey: scaffoldMessengerKey,

internetconnection.webm

12. App Updater

  upgrader: ^6.5.0

        upgrader: Upgrader(
          shouldPopScope: () => true,
          canDismissDialog: true,
          durationUntilAlertAgain: const Duration(days: 1),
          dialogStyle: Platform.isIOS ? UpgradeDialogStyle.cupertino : UpgradeDialogStyle.material,
        ),

13. Configure Dio Http Client

pubspec.yaml

  dio: ^5.3.2
  dio_http_formatter: ^3.1.0

lib/core/remote/network_service.dart

import 'package:dio/dio.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:dio_http_formatter/dio_http_formatter.dart';
import 'package:flutter_setup/core/remote/network_service_interceptor.dart';

final networkServiceProvider = Provider<Dio>((ref) {
  final options = BaseOptions(
    baseUrl: 'base_url',
    connectTimeout: const Duration(milliseconds: 1000 * 60),
    sendTimeout: const Duration(milliseconds: 1000 * 60),
    receiveTimeout: const Duration(milliseconds: 1000 * 60),
  );

  final _dio = Dio(options)
    ..interceptors.addAll([
      HttpFormatter(),
      NetworkServiceInterceptor(),
    ]);

  return _dio;
})

lib/core/remote/network_service_interceptor.dart

import 'package:dio/dio.dart';

class NetworkServiceInterceptor extends Interceptor {
  @override
  Future onRequest(
    RequestOptions options,
    RequestInterceptorHandler handler,
  ) async {
    options.headers.addAll({
      'Content-Type': 'application/json',
    });

    super.onRequest(options, handler);
  }
}

14. Obscure Sensitive UI

lib/core/providers/app_background_state_provider.dart

import 'package:flutter_riverpod/flutter_riverpod.dart';

final appBackgroundStateProvider = StateProvider<bool>((ref) {
  return false;
});

lib/base/base_consumer_state.dart

import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:logging/logging.dart';
import 'package:flutter_gen/gen_l10n/app_localizations.dart';

abstract class BaseConsumerState<T extends ConsumerStatefulWidget>
    extends ConsumerState<T> with WidgetsBindingObserver { //added
  AppLocalizations get translation => AppLocalizations.of(context)!;
  Logger get log => Logger(T.toString());

  @override
  void initState() {
    log.info('$T initState');
    super.initState();
    WidgetsBinding.instance.addObserver(this); //added
  }

  @override
  void dispose() {
    log.info('$T dispose');
    WidgetsBinding.instance.removeObserver(this); //added
    super.dispose();
  }
}

class _MainWidgetState extends BaseConsumerState<MainWidget> {
// ------------中略---------

      home: isAppInBackground
          ? const ColoredBox(color: Colors.black)
          : const HomePage(),
    );
  }

  @override
  void didChangeAppLifecycleState(AppLifecycleState state) {
    super.didChangeAppLifecycleState(state);

    switch (state) {
      case AppLifecycleState.inactive:
        ref.read(appBackgroundStateProvider.notifier).state = true;
      case AppLifecycleState.resumed:
        ref.read(appBackgroundStateProvider.notifier).state = false;
      default:
    }
  }
}

15. Flutter Secure Storage

pubspec.yaml

  flutter_secure_storage: ^8.1.0

Keychain is used for iOS
AES encryption is used for Android. AES secret key is encrypted with RSA and RSA key is stored in KeyStore
With V5.0.0 we can use EncryptedSharedPreferences on Android by enabling it in the Android Options like so:

lib/core/local/secure_storage/flutter_secure_storage_provider.dart

import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_secure_storage/flutter_secure_storage.dart';

final flutterSecureStorageProvider = Provider<FlutterSecureStorage>((ref) {
  AndroidOptions _getAndroidOptions() => const AndroidOptions(
        encryptedSharedPreferences: true,
      );

  IOSOptions _getIOSOptions() => const IOSOptions(
        accessibility: KeychainAccessibility.first_unlock,
      );
  return FlutterSecureStorage(
    aOptions: _getAndroidOptions(),
    iOptions: _getIOSOptions(),
  );
});

lib/core/local/secure_storage/secure_storage_const.dart

const String hiveKey = 'hive_key';

lib/core/local/secure_storage/seucre_storage.dart

abstract class SecureStorage {
  Future<void> setHiveKey(String value);
  Future<String?> getHiveKey();
}

final secureStorageProvider = Provider<SecureStorage>((ref) {
  final flutterSecureStorage = ref.watch(flutterSecureStorageProvider);
  return SecureStorageImpl(flutterSecureStorage);
});

class SecureStorageImpl implements SecureStorage {
  final FlutterSecureStorage _flutterSecureStorage;

  SecureStorageImpl(this._flutterSecureStorage);

  @override
  Future<String?> getHiveKey() async {
    return await _flutterSecureStorage.read(
      key: hiveKey,
    );
  }

  @override
  Future<void> setHiveKey(String value) async {
    await _flutterSecureStorage.write(
      key: hiveKey,
      value: value,
    );
  }
}

16. Hive Database Encryption

pubspec.yaml

dependencies:
  hive_flutter: ^1.1.0

dev_dependencies:
  hive_generator: ^2.0.1
  hive_test: ^1.0.1
  build_runner: ^2.4.6

lib/core/db/hive_box_key.dart

const String settingBox = 'setting_box';

lib/core/db/hive_box_key.dart

const hiveDb = 'hive_db';

lib/core/db/hive_db.dart

import 'dart:convert';

import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_setup/core/db/hive_box_key.dart';
import 'package:flutter_setup/core/db/hive_constant.dart';
import 'package:flutter_setup/core/local/secure_storage/seucre_storage.dart';
import 'package:hive_flutter/hive_flutter.dart';

import 'package:flutter_setup/core/local/secure_storage/secure_storage_impl.dart';

final hiveDbProvider = Provider<HiveDb>((ref) {
  final secureStorage = ref.watch(secureStorageProvider);
  return HiveDb(secureStorage);
});

class HiveDb {
  final SecureStorage _secureStorage;
  HiveDb(this._secureStorage) {
    _init();
  }

  void _init() async {
    await Hive.initFlutter(hiveDb);

    String? encryptionKey = await _secureStorage.getHiveKey();
    if (encryptionKey == null) {
      final key = Hive.generateSecureKey();
      await _secureStorage.setHiveKey(base64UrlEncode(key));
      encryptionKey = await _secureStorage.getHiveKey();
    }

    if (encryptionKey != null) {
      final key = base64Url.decode(encryptionKey);
      await Hive.openBox<dynamic>(
        settingBox,
        encryptionCipher: HiveAesCipher(key),
      );
    }
  }
}

lib/main.dart

Future<void> main() async {
// FutureOr<void> mainApp(Flavor flavor) async {
  WidgetsFlutterBinding.ensureInitialized();

  // An object that stores the state of the providers and allows overriding the behavior of a specific provider.
  final container = ProviderContainer();

  // set up the database
  container.read(hiveDbProvider);

17. Obscure the data

pubspec.yaml

dependencies:
  flutter:
    sdk: flutter

  envied: ^0.3.0+3

dev_dependencies:
  flutter_test:
    sdk: flutter

  envied_generator: ^0.3.0+3

lib/core/env/env.dart

import 'package:envied/envied.dart';

part 'env.g.dart';

@Envied(path: '.dev.env')
abstract class EnvDev {
  @EnviedField(varName: 'BASE_URL')
  static const String baseUrl = _EnvDev.baseUrl;
  @EnviedField(varName: 'API_KEY', obfuscate: true)
  static final int apiKey = _EnvDev.apiKey;
}

@Envied(path: '.qa.env')
abstract class EnvQA {
  @EnviedField(varName: 'BASE_URL')
  static const String baseUrl = _EnvQA.baseUrl;
  @EnviedField(varName: 'API_KEY', obfuscate: true)
  static final int apiKey = _EnvQA.apiKey;
}

@Envied(path: '.uat.env')
abstract class EnvUAT {
  @EnviedField(varName: 'BASE_URL')
  static const String baseUrl = _EnvUAT.baseUrl;
  @EnviedField(varName: 'API_KEY', obfuscate: true)
  static final int apiKey = _EnvUAT.apiKey;
}

@Envied(path: '.prod.env')
abstract class EnvProd {
  @EnviedField(varName: 'BASE_URL')
  static const String baseUrl = _EnvProd.baseUrl;
  @EnviedField(varName: 'API_KEY', obfuscate: true)
  static final int apiKey = _EnvProd.apiKey;
}

Run the below command

flutter pub run build_runner build

lib/core/env/env_reader.dart

final envReaderProvider = Provider<EnvReader>((ref) {
  final flvaor = ref.watch(flavorProvider);
  return EnvReader(flvaor);
});

class EnvReader {
  final Flavor _flavor;

  EnvReader(this._flavor);

  String getBaseUrl() {
    switch (_flavor) {
      case Flavor.dev:
        return EnvDev.baseUrl;
      case Flavor.qa:
        return EnvQA.baseUrl;
      case Flavor.uat:
        return EnvUAT.baseUrl;
      case Flavor.prod:
        return EnvProd.baseUrl;
    }
  }

  String getAPIKey() {
    switch (_flavor) {
      case Flavor.dev:
        return EnvDev.apiKey.toString();
      case Flavor.qa:
        return EnvQA.apiKey.toString();
      case Flavor.uat:
        return EnvUAT.apiKey.toString();
      case Flavor.prod:
        return EnvProd.apiKey.toString();
    }
  }

lib/core/flavor/flavor_provider.dart

import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_setup/core/flavor/flavor.dart';

final flavorProvider = StateProvider<Flavor>((ref) => Flavor.dev);

lib/main.dart

Future<void> main() async {
    FutureOr<void> mainApp(Flavor flavor) async {

      // An object that stores the state of the providers and allows overriding the behavior of a specific provider.
      final container = ProviderContainer();
    
      container.read(flavorProvider.notifier).state = flavor;

lib/core/remote/network_service.dart

final networkServiceProvider = Provider<Dio>((ref) {
  final envReader = ref.watch(envReaderProvider);

  final options = BaseOptions(
    baseUrl: envReader.getBaseUrl(),

lib/core/env/.gitignore

!.gitignore
env.g.dart

18. Secure Client - Server Connection

Get Free SSL: https://zerossl.com/

Certificate Example: https://knowledge.digicert.com/generalinformation/INFO992.html

Basee64: https://www.base64encode.org/

env

CERTIFICATE=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

lib/core/env/env.dart

@Envied(path: '.qa.env')
abstract class EnvQA {
  @EnviedField(varName: 'BASE_URL')
  static const String baseUrl = _EnvQA.baseUrl;
  @EnviedField(varName: 'API_KEY', obfuscate: true)
  static final int apiKey = _EnvQA.apiKey;
  @EnviedField(varName: 'CERTIFICATE', obfuscate: true)
  static final String certificate = _EnvDev.certificate;
}

lib/core/env/env_reader.dart

  Uint8List getCertificate() {
    switch (_flavor) {
      case Flavor.dev:
        return base64Decode(EnvDev.certificate);
      case Flavor.qa:
        return base64Decode(EnvQA.certificate);
      case Flavor.uat:
        return base64Decode(EnvUAT.certificate);
      case Flavor.prod:
        return base64Decode(EnvProd.certificate);
    }

lib/core/remote/network_service.dart

  _dio.httpClientAdapter = IOHttpClientAdapter(
    createHttpClient: () {
      final securityContext = SecurityContext.defaultContext;
      final client = HttpClient();
      securityContext.setTrustedCertificatesBytes(envReader.getCertificate());
      client.badCertificateCallback =
          (X509Certificate cert, String host, int port) {
        return false;
      };
      return client;
    },
  );

19. FingerPrint - FaceScan & Passcode

pubspec.yaml

  local_auth: ^2.1.7

iOS Integration

Info.plist

<key>NSFaceIDUsageDescription</key>
<string>Why is my app authenticating using face id?</string>

Android Integration

MainActivity.kt

import io.flutter.embedding.android.FlutterFragmentActivity

class MainActivity: FlutterFragmentActivity() {
    // ...
}

AndroidManifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
          package="com.example.app">
  <uses-permission android:name="android.permission.USE_BIOMETRIC"/>
<manifest>

20. Dart Code Obfuscate

## Build Android release app
* fvm flutter build apk --release --obfuscate --split-debug-info=build/app/symbols --build-name=1.0.0 --build-number=1 --flavor dev -t lib/main_dev.dart


## Build iOS release app
* fvm flutter build ipa --release  --obfuscate --split-debug-info=build/ios/symbols --export-options-plist build/ios/export_options.plist --build-name=1.0.0 --build-number=1 --flavor prod -t lib/main_prod.dart
***

21. Runtime App Self Prtotection

https://www.talsec.app/

pubspec.yaml

  freerasp: ^6.2.0

After adding the package, you need to run the command pod install.

.dev.env

ANDROID_BUILD_ID=test
IOS_BUILD_ID=test
HASH256=LS0tLS1CRUdJTiB...

lib/core/env/env.dart

@Envied(path: '.dev.env')
abstract class EnvDev {
  // -------中略--------
  @EnviedField(varName: 'ANDROID_BUILD_ID')
  static final String androidBuildID = _EnvDev.androidBuildID;
  @EnviedField(varName: 'IOS_BUILD_ID')
  static final String iosBuildID = _EnvDev.iosBuildID;
  @EnviedField(varName: 'HASH256')
  static final String hash256 = _EnvDev.hash256;

lib/main.dart

  // security config
  container.read(securityConfigProvider);

lib/core/env/env_reader.dart

  String getAndroidBuildID() {
    switch (_flavor) {
      case Flavor.dev:
        return EnvDev.androidBuildID.toString();
      case Flavor.qa:
        return EnvQA.androidBuildID.toString();
      case Flavor.uat:
        return EnvUAT.androidBuildID.toString();
      case Flavor.prod:
        return EnvProd.androidBuildID.toString();
    }
  }

  Uint8List getHash256() {
    switch (_flavor) {
      case Flavor.dev:
        return base64Decode(EnvDev.hash256.toString());
      case Flavor.qa:
        return base64Decode(EnvQA.hash256.toString());
      case Flavor.uat:
        return base64Decode(EnvUAT.hash256.toString());
      case Flavor.prod:
        return base64Decode(EnvProd.hash256.toString());
    }
  }

lib/core/security/security_config.dart

import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_setup/core/env/env_reader.dart';
import 'package:freerasp/freerasp.dart';

final securityConfigProvider = Provider<SecurityConfig>((ref) {
  return SecurityConfig(ref, ref.watch(envReaderProvider));
});

class SecurityConfig {
  final Ref _ref;
  final EnvReader _envReader;

  SecurityConfig(this._ref, this._envReader) {
    _init();
  }

  void _init() async {
// Signing hash of your app
    String base64Hash =
        hashConverter.fromSha256toBase64(_envReader.getHash256());

    // create configuration for freeRASP
    final config = TalsecConfig(
      /// For Android
      androidConfig: AndroidConfig(
        packageName: _envReader.getAndroidBuildID(),
        signingCertHashes: [base64Hash],
        supportedStores: ['some.other.store'],
      ),

      /// For iOS
      iosConfig: IOSConfig(
        bundleIds: [_envReader.getiOSBuildID()],
        teamId: 'M8AK35...',
      ),
      watcherMail: 'your_mail@example.com',
      isProd: true,
    );

    // Setting up callbacks
    final callback = ThreatCallback(
        onAppIntegrity: () => print("App integrity"),
        onObfuscationIssues: () => print("Obfuscation issues"),
        onDebug: () => print("Debugging"),
        onDeviceBinding: () => print("Device binding"),
        onDeviceID: () => print("Device ID"),
        onHooks: () => print("Hooks"),
        onPasscode: () => print("Passcode not set"),
        onPrivilegedAccess: () => print("Privileged access"),
        onSecureHardwareNotAvailable: () =>
            print("Secure hardware not available"),
        onSimulator: () => print("Simulator"),
        onUnofficialStore: () => print("Unofficial store"));

    // Attaching listener
    Talsec.instance.attachListener(callback);

    // start freeRASP
    await Talsec.instance.start(config);
  }
}

22. PassCode

pubspec.yaml

  flutter_screen_lock: ^9.0.1

lib/common/class/set_pass_code_screen.dart

import 'package:flutter/widgets.dart';
import 'package:flutter_screen_lock/flutter_screen_lock.dart';

mixin class SetPassCodeScreen {
  void setPassCode(
    BuildContext context, {
    required InputController inputController,
    String correctString = '',
    Widget title = const Text('Create your PassCode'),
    Widget conformTitle = const Text('Confirm your PassCode'),
    bool useLandscape = false,
    int retryDelay = 60,
    required void Function(String) didConfirmed,
    Widget Function(BuildContext, Duration)? delayBuilder,
    Widget? footer,
  }) {
    screenLockCreate(
      context: context,
      inputController: inputController,
      title: title,
      useLandscape: useLandscape,
      confirmTitle: conformTitle,
      digits: 6,
      retryDelay: Duration(seconds: retryDelay),
      maxRetries: 3,
      delayBuilder: delayBuilder ??
          (
            context,
            duration,
          ) =>
              Text(
                'You have to wait ${duration.inSeconds} seconds to try again',
              ),
      onConfirmed: didConfirmed,
      footer: footer,
    );
  }
}

lib/common/class/show_pass_code_screen.dart

import 'package:flutter/widgets.dart';
import 'package:flutter_screen_lock/flutter_screen_lock.dart';

mixin class ShowPassCodeScreen {
  void showPassCode(
    BuildContext context, {
    required String correctString,
    required void Function() didUnlocked,
    Widget title = const Text('Enter your PassCode'),
    bool useLandscape = false,
    int retryDelay = 60,
    Widget Function(BuildContext, Duration)? delayBuilder,
    Widget? footer,
  }) {
    screenLock(
      context: context,
      correctString: correctString,
      title: title,
      useLandscape: useLandscape,
      retryDelay: Duration(seconds: retryDelay),
      maxRetries: 3,
      delayBuilder: delayBuilder ??
          (
            context,
            duration,
          ) =>
              Text(
                'You have to wait ${duration.inSeconds} seconds to try again',
              ),
      onUnlocked: didUnlocked,
    );
  }
}

lib/core/local/db/hive_db.dart

final hiveDbProvider = Provider<HiveDb>((ref) {
  final secureStorage = ref.watch(secureStorageProvider);
  return HiveDb(secureStorage);
});

class HiveDb {
  final SecureStorage _secureStorage;
  HiveDb(this._secureStorage) {
    _init();
  }

  void _init() async {
    await Hive.initFlutter(hiveDb);

    String? encryptionKey = await _secureStorage.getHiveKey();
    if (encryptionKey == null) {
      final key = Hive.generateSecureKey();
      await _secureStorage.setHiveKey(base64UrlEncode(key));
      encryptionKey = await _secureStorage.getHiveKey();
    }

    if (encryptionKey != null) {
      final key = base64Url.decode(encryptionKey);
      await Hive.openBox<dynamic>(
        settingBox,
        encryptionCipher: HiveAesCipher(key),
      );
    }
  }
}

lib/features/setting/data/repository/setting_repository.dart

abstract class SettingRepository {
  Future<bool> addToBox<T>(String key, T? value);
  Future<T?> getFromBox<T>(String key);
}

lib/features/setting/data/repository/setting_repository_impl.dart

final settingRepositoryProvider = Provider<SettingRepository>((ref) {
  final box = ref.watch(settingBoxProvider);
  return SettingRepositoryImpl(box);
});

class SettingRepositoryImpl implements SettingRepository {
  final Box _box;

  SettingRepositoryImpl(this._box);

  @override
  Future<bool> addToBox<T>(String key, T? value) async {
    await _box.put(key, value);
    return true;
  }

  @override
  Future<T?> getFromBox<T>(String key) async {
    return await _box.get(key);
  }
}

lib/core/local/db/provider/setting_box_provider.dart

final settingBoxProvider = Provider<Box>((ref) {
  return Hive.box(settingBox);
});

lib/features/setting/application/setting_service_impl.dart

final settingServiceProvider = Provider<SettingService>((ref) {
  final repository = ref.watch(settingRepositoryProvider);
  return SettingServiceImpl(repository);
});

class SettingServiceImpl implements SettingService {
  SettingServiceImpl(this._repository);

  final SettingRepository _repository;

  @override
  Future<bool> addToBox<T>(String key, T? value) async {
    final result = await _repository.addToBox<T>(key, value);
    return result;
  }

  @override
  Future<T?> getFromBox<T>(String key) async {
    return await _repository.getFromBox<T>(key);
  }
}

lib/features/setting/presentation/state/setting_state.dart

part 'setting_state.freezed.dart';

@freezed
class SettingState with _$SettingState {
  const factory SettingState({
    String? passCode,
  }) = _SettingState;
}

lib/features/setting/presentation/conroller/setting_controller.dart

final settingConrollerProvider =
    StateNotifierProvider<SettingController, SettingState>((ref) {
  final settingService = ref.watch(settingServiceProvider);
  return SettingController(settingService, const SettingState());
});

class SettingController extends StateNotifier<SettingState> {
  final SettingService _service;

  SettingController(this._service, super.state);

  void addPassCodeToBox(String key, String value) async {
    final result = await _service.addToBox(key, value);
    if (result) {
      state = state.copyWith(passCode: value);
    }
  }

  void getPassCodeFromBox(String key) async {
    final result = await _service.getFromBox<String>(key);
    state = state.copyWith(passCode: result);
  }
}

lib/features/setting/presentation/ui/widget/setting_screen.dart

class _SettingScreenState extends BaseConsumerState<SettingScreen>
    with SetPassCodeScreen, ShowPassCodeScreen {
  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((_) {
      ref
          .read(settingConrollerProvider.notifier)
          .getPassCodeFromBox(passCodeKey);
    });
  }

  @override
  Widget build(BuildContext context) {
    final passCode =
        ref.watch(settingConrollerProvider.select((value) => value.passCode));

23. Setup GoRouter with Riverpod

pubspec.yaml

  go_router: ^11.0.0

lib/route/go_router_provider.dart

final goRouterProvider = Provider<GoRouter>((ref) {
  return GoRouter(
    initialLocation: '/setting',
    routes: <RouteBase>[
      GoRoute(
        path: '/setting',
        name: settingRoute,
        builder: (context, state) => SettingScreen(
          key: state.pageKey,
        ),
      ),
    ],
    errorBuilder: (context, state) => NoRouteScreen(
      key: state.pageKey,
    ),
  );
});

lib/main_widget.dart

  Widget build(BuildContext context) {
    final router = ref.watch(goRouterProvider);
    return MaterialApp.router(
      routeInformationParser: router.routeInformationParser,
      routeInformationProvider: router.routeInformationProvider,
      routerDelegate: router.routerDelegate,
      scaffoldMessengerKey: scaffoldMessengerKey,

24. BottomNavigation

lib/features/dashboard/presentation/ui/dashboard_screen.dart

class DashboardScreen extends StatefulWidget {
  final Widget child;
  const DashboardScreen({super.key, required this.child});

  @override
  State<DashboardScreen> createState() => _DashboardScreenState();
}

class _DashboardScreenState extends State<DashboardScreen> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: widget.child,
      bottomNavigationBar: const BottomNavigationWidget(),
    );
  }
}

lib/features/dashboard/presentation/controller/dashboard_controller.dart

final dashboardControllerProvider =
    StateNotifierProvider<DashboardControlleer, DashboardState>((ref) {
  return DashboardControlleer();
});

class DashboardControlleer extends StateNotifier<DashboardState> {
  DashboardControlleer() : super(const DashboardState());

  void setPageIndex(int value) {
    state = state.copyWith(pageIndex: value);
  }
}

lib/features/dashboard/presentation/state/dashboard_state.dart

import 'package:freezed_annotation/freezed_annotation.dart';

part 'dashboard_state.freezed.dart';

@freezed // 16.54
class DashboardState with _$DashboardState {
  const factory DashboardState({
    @Default(0) int pageIndex,
  }) = _DashboardState;
}

lib/features/dashboard/presentation/ui/dashboard_screen.dart

import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_setup/base/base_consumer_state.dart';
import 'package:flutter_setup/features/dashboard/presentation/controller/dashboard_controller.dart';
import 'package:go_router/go_router.dart';

class BottomNavigationWidget extends ConsumerStatefulWidget {
  const BottomNavigationWidget({super.key});

  @override
  ConsumerState<BottomNavigationWidget> createState() =>
      _BottomNavigationWidgetState();
}

class _BottomNavigationWidgetState
    extends BaseConsumerState<BottomNavigationWidget> {
  @override
  Widget build(BuildContext context) {
    final index = ref
        .watch(dashboardControllerProvider.select((value) => value.pageIndex));
    return BottomNavigationBar(
      currentIndex: _calulateSelectedIndex(context),
      onTap: (value) => _onItemTapped(value),
      selectedItemColor: Colors.green,
      unselectedItemColor: Colors.grey,
      showUnselectedLabels: true,
      selectedLabelStyle: const TextStyle(
        color: Colors.green,
        fontSize: 14,
        fontWeight: FontWeight.bold,
      ),
      unselectedLabelStyle: const TextStyle(
        color: Colors.grey,
        fontSize: 12,
        fontWeight: FontWeight.w500,
      ),
      items: const [
        BottomNavigationBarItem(
          activeIcon: Icon(Icons.home_filled),
          icon: Icon(Icons.home),
          label: "Home",
        ),
        BottomNavigationBarItem(
          activeIcon: Icon(Icons.shopify),
          icon: Icon(Icons.shopping_bag),
          label: "Cart",
        ),
        BottomNavigationBarItem(
          activeIcon: Icon(Icons.settings),
          icon: Icon(Icons.settings_applications),
          label: "Settings",
        ),
      ],
    );
  }

  static int _calulateSelectedIndex(BuildContext context) {
    final GoRouterState route = GoRouterState.of(context);
    final String location = route.uri.toString();
    if (location == "/") {
      return 0;
    } else if (location == "/cart") {
      return 1;
    } else if (location == "/setting") {
      return 2;
    }
    return 0;
  }

  void _onItemTapped(int index) {
    //ref.read(dashboardControllerProvider.notifier).setPageIndex(index);
    switch (index) {
      case 0:
        GoRouter.of(context).go("/");
        break;
      case 1:
        GoRouter.of(context).go("/cart");
        break;
      case 2:
        GoRouter.of(context).go("/setting");
        break;
    }
  }
}

25. ShellRoute

lib/route/route_name.dart

const String homeRoute = 'home';
const String cartRoute = 'cart';
const String settingRoute = 'setting';
const String noInternetRoute = 'noInternet';

lib/features/dashboard/presentation/ui/widget/bottom_navigation_widget.dart

import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_setup/base/base_consumer_state.dart';
import 'package:flutter_setup/features/dashboard/presentation/controller/dashboard_controller.dart';
import 'package:go_router/go_router.dart';

class BottomNavigationWidget extends ConsumerStatefulWidget {
  const BottomNavigationWidget({super.key});

  @override
  ConsumerState<BottomNavigationWidget> createState() =>
      _BottomNavigationWidgetState();
}

class _BottomNavigationWidgetState
    extends BaseConsumerState<BottomNavigationWidget> {
  @override
  Widget build(BuildContext context) {
    final index = ref
        .watch(dashboardControllerProvider.select((value) => value.pageIndex));
    return BottomNavigationBar(
      currentIndex: _calulateSelectedIndex(context),
      onTap: (value) => _onItemTapped(value),
      selectedItemColor: Colors.green,
      unselectedItemColor: Colors.grey,
      showUnselectedLabels: true,
      selectedLabelStyle: const TextStyle(
        color: Colors.green,
        fontSize: 14,
        fontWeight: FontWeight.bold,
      ),
      unselectedLabelStyle: const TextStyle(
        color: Colors.grey,
        fontSize: 12,
        fontWeight: FontWeight.w500,
      ),
      items: const [
        BottomNavigationBarItem(
          activeIcon: Icon(Icons.home_filled),
          icon: Icon(Icons.home),
          label: "Home",
        ),
        BottomNavigationBarItem(
          activeIcon: Icon(Icons.shopify),
          icon: Icon(Icons.shopping_bag),
          label: "Cart",
        ),
        BottomNavigationBarItem(
          activeIcon: Icon(Icons.settings),
          icon: Icon(Icons.settings_applications),
          label: "Setting",
        ),
      ],
    );
  }

  static int _calulateSelectedIndex(BuildContext context) {
    final GoRouterState route = GoRouterState.of(context);
    final String location = route.uri.toString();
    if (location == "/") {
      return 0;
    } else if (location == "/cart") {
      return 1;
    } else if (location == "/setting") {
      return 2;
    }
    return 0;
  }

  void _onItemTapped(int index) {
    //ref.read(dashboardControllerProvider.notifier).setPageIndex(index);
    switch (index) {
      case 0:
        GoRouter.of(context).go("/");
        break;
      case 1:
        GoRouter.of(context).go("/cart");
        break;
      case 2:
        GoRouter.of(context).go("/setting");
        break;
    }
  }
}

lib/route/go_router_provider.dart

final GlobalKey<NavigatorState> navigatorKey =
    GlobalKey<NavigatorState>(debugLabel: 'root');
final GlobalKey<NavigatorState> _shellNavigatorKey =
    GlobalKey<NavigatorState>(debugLabel: 'shell');

final goRouterProvider = Provider<GoRouter>((ref) {
  return GoRouter(
    navigatorKey: navigatorKey,
    initialLocation: '/',
    routes: <RouteBase>[
      GoRoute(
        parentNavigatorKey: navigatorKey,
        path: '/noInternet',
        name: noInternetRoute,
        builder: (context, state) => NoInternetConnectionScreen(
          key: state.pageKey,
        ),
      ),
      ShellRoute(
        navigatorKey: _shellNavigatorKey,
        builder: (context, state, child) {
          return DashboardScreen(
            key: state.pageKey,
            child: child,
          );
        },
        routes: [
          GoRoute(
            path: '/',
            name: homeRoute,
            pageBuilder: (context, state) {
              return NoTransitionPage(
                key: state.pageKey,
                child: HomeScreen(
                  key: state.pageKey,
                ),
              );
            },
          ),
          GoRoute(
            path: '/cart',
            name: cartRoute,
            pageBuilder: (context, state) {
              return NoTransitionPage(
                key: state.pageKey,
                child: CartScreen(
                  key: state.pageKey,
                ),
              );
            },
          ),
          GoRoute(
            path: '/setting',
            name: settingRoute,
            pageBuilder: (context, state) {
              return NoTransitionPage(
                key: state.pageKey,
                child: SettingScreen(
                  key: state.pageKey,
                ),
              );
            },
          ),
        ],
      ),
    ],
    errorBuilder: (context, state) => NoRouteScreen(
      key: state.pageKey,
    ),
  );
});

lib/route/go_router_provider.dart

final GlobalKey<NavigatorState> navigatorKey =
    GlobalKey<NavigatorState>(debugLabel: 'root');
final GlobalKey<NavigatorState> _shellNavigatorKey =
    GlobalKey<NavigatorState>(debugLabel: 'shell');

final goRouterProvider = Provider<GoRouter>((ref) {
  return GoRouter(
    navigatorKey: navigatorKey,
    initialLocation: '/',
    routes: <RouteBase>[
      GoRoute(
        parentNavigatorKey: navigatorKey,
        path: '/noInternet',
        name: noInternetRoute,
        builder: (context, state) => NoInternetConnectionScreen(
          key: state.pageKey,
        ),
      ),
      ShellRoute(
        navigatorKey: _shellNavigatorKey,
        builder: (context, state, child) {
          return DashboardScreen(
            key: state.pageKey,
            child: child,
          );
        },
        routes: [
          GoRoute(
            path: '/',
            name: homeRoute,
            pageBuilder: (context, state) {
              return NoTransitionPage(
                key: state.pageKey,
                child: HomeScreen(
                  key: state.pageKey,
                ),
              );
            },
          ),
          GoRoute(
            path: '/cart',
            name: cartRoute,
            pageBuilder: (context, state) {
              return NoTransitionPage(
                key: state.pageKey,
                child: CartScreen(
                  key: state.pageKey,
                ),
              );
            },
          ),
          GoRoute(
            path: '/setting',
            name: settingRoute,
            pageBuilder: (context, state) {
              return NoTransitionPage(
                key: state.pageKey,
                child: SettingScreen(
                  key: state.pageKey,
                ),
              );
            },
          ),
        ],
      ),
    ],
    errorBuilder: (context, state) => NoRouteScreen(
      key: state.pageKey,
    ),
  );
});

26. GoRoute Listener

lib/core/route/notifier/go_router_notifier.dart

import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';

final goRouterNotiferProvider = Provider<GoRouterNotider>((ref) {
  return GoRouterNotider();
});

class GoRouterNotider extends ChangeNotifier {}

lib/core/route/go_router_provider.dart

final goRouterProvider = Provider<GoRouter>((ref) {
  return GoRouter(
    navigatorKey: navigatorKey,
    initialLocation: '/',
    refreshListenable: ref.watch(goRouterNotiferProvider),
    routes: <RouteBase>[
      GoRoute(
        parentNavigatorKey: navigatorKey,
        path: '/noInternet',
        name: noInternetRoute,
        builder: (context, state) => NoInternetConnectionScreen(
          key: state.pageKey,
        ),
      ),
      GoRoute(
        parentNavigatorKey: navigatorKey,
        path: '/login',
        name: loginRoute,
        builder: (context, state) => LoginScreen(
          key: state.pageKey,
        ),
        routes: [
          GoRoute(
            path: 'signUp',
            name: signUpRoute,
            builder: (context, state) => SignUpScreen(
              key: state.pageKey,
            ),
          ),
        ],
      ),

27. Route Guard

lib/core/route/notifier/go_router_notifier.dart

final goRouterNotiferProvider = Provider<GoRouterNotider>((ref) {
  return GoRouterNotider();
});

class GoRouterNotider extends ChangeNotifier {
  bool _isLoggedIn = false;
  bool get isLoggedIn => _isLoggedIn;
  set isLoggeIn(bool value) {
    _isLoggedIn = value;
    notifyListeners();
  }
}

lib/features/auth/presentation/ui/login_screen.dart

        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          crossAxisAlignment: CrossAxisAlignment.center,
          children: [
            ElevatedButton.icon(
              onPressed: () {
                ref.read(goRouterNotiferProvider).isLoggeIn = true;
              },

lib/features/setting/presentation/ui/setting_screen.dart

          ElevatedButton.icon(
            onPressed: () {
              ref.read(goRouterNotiferProvider).isLoggeIn = false;
            },

27. GoRoute Navigate with Riverpod

    final connectionStream =
        ref.read(internetConnectionObserverProvider).hasConnectionStream.stream;
    connectionStream.listen((isConnected) {
      if (!isConnected && mounted) {
        ref.read(goRouterProvider).push('/noInternet');

lib/core/route/go_router_provider.dart

final GlobalKey<NavigatorState> _routeNavigatorKey =
    GlobalKey<NavigatorState>(debugLabel: 'root');
final GlobalKey<NavigatorState> _shellNavigatorKey =
    GlobalKey<NavigatorState>(debugLabel: 'shell');

final goRouterProvider = Provider<GoRouter>((ref) {
  bool isDuplicate = false;
  final notifier = ref.read(goRouterNotiferProvider);

  return GoRouter(
    navigatorKey: _routeNavigatorKey,
    initialLocation: '/',
    refreshListenable: notifier,
    redirect: (context, state) {
      final isLoggedIn = notifier.isLoggedIn;
      final isGoingToLogin = state.uri.path == '/login';
      final isGoingToNoInternet = state.uri.path == '/noInternet';

      if (isLoggedIn &&
          isGoingToLogin &&
          !isDuplicate &&
          !isGoingToNoInternet) {
        isDuplicate = true;
        return '/'; // redirect to home
      } else if (!isLoggedIn &&
          !isGoingToLogin &&
          !isDuplicate &&
          !isGoingToNoInternet) {

28. GoRouter Dismiss Dialog

lib/features/product/presentation/ui/product_detail_screen.dart

import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_setup/base/base_consumer_state.dart';
import 'package:go_router/go_router.dart';

class ProductDetailScreen extends ConsumerStatefulWidget {
  const ProductDetailScreen({super.key});

  @override
  ConsumerState<ProductDetailScreen> createState() =>
      _ProductDetailScreenState();
}

class _ProductDetailScreenState extends BaseConsumerState<ProductDetailScreen> {
  @override
  Widget build(BuildContext context) {
    return WillPopScope(
      onWillPop: () async => false,
      child: Scaffold(
        appBar: AppBar(
          title: const Text("Product Detail"),
          centerTitle: true,
          leading: BackButton(
            onPressed: () {
              context.pop();
            },
          ),
        ),
        body: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              const Text("Product Detail"),
              const SizedBox(height: 8),
              ElevatedButton.icon(
                label: const Text("Stock Detail"),
                icon: const Icon(Icons.inventory),
                onPressed: () {
                  showDialog(
                    context: context,
                    barrierDismissible: true,
                    builder: (context) {
                      return WillPopScope(
                        onWillPop: () async => false,
                        child: AlertDialog(
                          content: Padding(
                            padding: const EdgeInsets.all(8.0),
                            child: Column(
                              crossAxisAlignment: CrossAxisAlignment.center,
                              mainAxisSize: MainAxisSize.min,
                              children: [
                                const Icon(
                                  Icons.info,
                                ),
                                const SizedBox(height: 8),
                                const Text('Qty of product 10'),
                                const SizedBox(height: 8),
                                ElevatedButton.icon(
                                  icon: const Icon(Icons.close),
                                  label: const Text('OK'),
                                  onPressed: () {
                                    final navigator = Navigator.of(
                                      context,
                                      rootNavigator: true,
                                    );
                                    if (navigator.canPop()) {
                                      navigator.pop();
                                    }
                                  },
                                ),
                              ],
                            ),
                          ),
                        ),
                      );
                    },
                  );
                },
              ),
            ],
          ),
        ),
      ),
    );
  }
}

29. ShellRoute → StatefulShellRoute

lib/core/route/go_router_provider.dart

class BottomNavigationWidget extends StatelessWidget {
  const BottomNavigationWidget({super.key, required this.child});

  final StatefulNavigationShell child;

  @override
  Widget build(BuildContext context) {
    return BottomNavigationBar(
      currentIndex: child.currentIndex,
      // currentIndex: _calulateSelectedIndex(context),
      onTap: (value) => _onItemTapped(value),
      selectedItemColor: Colors.green,
      unselectedItemColor: Colors.grey,
      showUnselectedLabels: true,
      selectedLabelStyle: const TextStyle(
        color: Colors.green,
        fontSize: 14,
        fontWeight: FontWeight.bold,
      ),
      unselectedLabelStyle: const TextStyle(
        color: Colors.grey,
        fontSize: 12,
        fontWeight: FontWeight.w500,
      ),
      items: const [
        BottomNavigationBarItem(
          activeIcon: Icon(Icons.home_filled),
          icon: Icon(Icons.home),
          label: "Home",
        ),
        BottomNavigationBarItem(
          activeIcon: Icon(Icons.shopify),
          icon: Icon(Icons.shopping_bag),
          label: "Cart",
        ),
        BottomNavigationBarItem(
          activeIcon: Icon(Icons.settings),
          icon: Icon(Icons.settings_applications),
          label: "Setting",
        ),
      ],
    );
  }

  void _onItemTapped(int index) {
    child.goBranch(
      index,
      initialLocation: index == child.currentIndex,
    );
  }
}

lib/features/dashboard/presentation/ui/dashboard_screen.dart

class DashboardScreen extends StatefulWidget {
  final StatefulNavigationShell child;
  // final Widget child;
  const DashboardScreen({super.key, required this.child});

  @override
  State<DashboardScreen> createState() => _DashboardScreenState();
}

class _DashboardScreenState extends State<DashboardScreen> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: widget.child,
      bottomNavigationBar: BottomNavigationWidget(
        child: widget.child,
      ),
    );
  }
}

lib/features/dashboard/presentation/ui/widget/bottom_navigation_widget.dart

class BottomNavigationWidget extends StatelessWidget {
  const BottomNavigationWidget({super.key, required this.child});

  final StatefulNavigationShell child;

  @override
  Widget build(BuildContext context) {
    return BottomNavigationBar(
      currentIndex: child.currentIndex,
      // currentIndex: _calulateSelectedIndex(context),
      onTap: (value) => _onItemTapped(value),
      selectedItemColor: Colors.green,
      unselectedItemColor: Colors.grey,
      showUnselectedLabels: true,
      selectedLabelStyle: const TextStyle(
        color: Colors.green,
        fontSize: 14,
        fontWeight: FontWeight.bold,
      ),
      unselectedLabelStyle: const TextStyle(
        color: Colors.grey,
        fontSize: 12,
        fontWeight: FontWeight.w500,
      ),
      items: const [
        BottomNavigationBarItem(
          activeIcon: Icon(Icons.home_filled),
          icon: Icon(Icons.home),
          label: "Home",
        ),
        BottomNavigationBarItem(
          activeIcon: Icon(Icons.shopify),
          icon: Icon(Icons.shopping_bag),
          label: "Cart",
        ),
        BottomNavigationBarItem(
          activeIcon: Icon(Icons.settings),
          icon: Icon(Icons.settings_applications),
          label: "Setting",
        ),
      ],
    );
  }

  void _onItemTapped(int index) {
    child.goBranch(
      index,
      initialLocation: index == child.currentIndex,
    );
  }
}

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flutter_setup

1. Github Workflow Srategy

2. Flutter version management

3. Flutter Flavor Setup

4. Configure Environment

6. Flutter Riverpod Configuration

7. Flutter Lint

8. Logger

9. keytool

10. Flutter Transiton Sheet

11. Internet Connectivity

12. App Updater

13. Configure Dio Http Client

14. Obscure Sensitive UI

15. Flutter Secure Storage

16. Hive Database Encryption

17. Obscure the data

18. Secure Client - Server Connection

19. FingerPrint - FaceScan & Passcode

20. Dart Code Obfuscate

21. Runtime App Self Prtotection

22. PassCode

23. Setup GoRouter with Riverpod

24. BottomNavigation

25. ShellRoute

26. GoRoute Listener

27. Route Guard

27. GoRoute Navigate with Riverpod

28. GoRouter Dismiss Dialog

29. ShellRoute → StatefulShellRoute

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Name		Name	Last commit message	Last commit date
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.fvm		.fvm
.vscode		.vscode
android		android
ios		ios
lib		lib
linux		linux
macos		macos
strings		strings
web		web
windows		windows
.dev.env		.dev.env
.gitignore		.gitignore
.metadata		.metadata
.prod.env		.prod.env
.qa.env		.qa.env
.uat.env		.uat.env
README.md		README.md
analysis_options.yaml		analysis_options.yaml
credentials.json		credentials.json
l10n.yaml		l10n.yaml
pubspec.lock		pubspec.lock
pubspec.yaml		pubspec.yaml
trconfig.yaml		trconfig.yaml

YamamotoDesu/flutter_setup

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flutter_setup

1. Github Workflow Srategy

2. Flutter version management

3. Flutter Flavor Setup

4. Configure Environment

6. Flutter Riverpod Configuration

7. Flutter Lint

8. Logger

9. keytool

10. Flutter Transiton Sheet

11. Internet Connectivity

12. App Updater

13. Configure Dio Http Client

14. Obscure Sensitive UI

15. Flutter Secure Storage

16. Hive Database Encryption

17. Obscure the data

18. Secure Client - Server Connection

19. FingerPrint - FaceScan & Passcode

20. Dart Code Obfuscate

21. Runtime App Self Prtotection

22. PassCode

23. Setup GoRouter with Riverpod

24. BottomNavigation

25. ShellRoute

26. GoRoute Listener

27. Route Guard

27. GoRoute Navigate with Riverpod

28. GoRouter Dismiss Dialog

29. ShellRoute → StatefulShellRoute

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