Code Setup: GOFA Lessons

flutter pub add get_it
flutter pub add provider
flutter pub add bloc
flutter pub add flutter_bloc

void main() async {
  // ensure flutter services are initialized
  WidgetsFlutterBinding.ensureInitialized();
  ...
  await GetIt.I.registerSingletonAsync<GofaPoseSdkManager>(
    () async => await GofaPoseSdkManager().init(),
  );
  ...
  runApp(MyApp());
}

ElevatedButton(
  onPressed: () {
    if (!GetIt.I.isRegistered<GofaPoseSdkManager>()) {
      // create an instance of GofaPoseSdkManager
      final gofaPoseSdkManager = GofaPoseSdkManager();
      GetIt.I.registerSingleton<GofaPoseSdkManager>(gofaPoseSdkManager);
    }
    final gofaPoseSdkManager = GetIt.I<GofaPoseSdkManager>();
    // do not await when calling .init(), so that the app can immediately
    // navigate to our splash screen
    GofaPoseSdkManager().init();
    // You may pushNamed or just push.
    // e.g. Navigator.pushNamed(context, GofaChallenge.routeName);
    // If pushNamed, remember to add the route:
    // routes: {
    //   GofaChallenge.routeName: (context) => const GofaChallenge(),
    // }
    Navigator.push(
      context,
      MaterialPageRoute(
        builder: (context) => const GofaChallenge(
          locale: Locale.fromSubtags(
            languageCode: 'zh', scriptCode: 'Hant'),
        ),
      ),
    );
  },
  child: const Text('GOFA Challenge'),
)

FutureBuilder(
  future: GetIt.I.allReady(),
  builder: (context, snapshot) {
    // build any widget that composes Gofa Screen and Bloc Logic
    if (!snapshot.hasData) {
      return const MaterialApp(
        home: Scaffold(
          body: Center(
            child: CircularProgressIndicator(),
          ),
        ),
      );
    }
    return const YourWidget();
  },
)

Locale('en'),
Locale.fromSubtags(languageCode: 'zh', scriptCode: 'Hant'),
Locale.fromSubtags(languageCode: 'zh', scriptCode: 'Hans'),

MaterialApp(
  ...
  localizationsDelegates: const [
    AppLocalizations.delegate,
    ...
    GofaLocalizationsDelegate(),
  ],
  locale: currentLocale,
  supportedLocales: yourSupportedLocales,
  // supportedLocales: GofaLocalizations.supportedLocales,
  ...
)

dependencies {
  ...
  // GS-152 Fatal error: ProcessLifecycleOwner - when starting workout set.
  // ref: https://developer.android.com/jetpack/androidx/releases/lifecycle
  def lifecycle_version = "2.6.1"
  def arch_version = "2.2.0"
  // ViewModel
  implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle_version"
  // ViewModel utilities for Compose
  implementation "androidx.lifecycle:lifecycle-viewmodel-compose:$lifecycle_version"
  // LiveData
  implementation "androidx.lifecycle:lifecycle-livedata-ktx:$lifecycle_version"
  // Lifecycles only (without ViewModel or LiveData)
  implementation "androidx.lifecycle:lifecycle-runtime-ktx:$lifecycle_version"
  // Lifecycle utilities for Compose
  implementation "androidx.lifecycle:lifecycle-runtime-compose:$lifecycle_version"
  // Saved state module for ViewModel
  implementation "androidx.lifecycle:lifecycle-viewmodel-savedstate:$lifecycle_version"
  // Annotation processor
  annotationProcessor "androidx.lifecycle:lifecycle-compiler:$lifecycle_version"
  // optional - ProcessLifecycleOwner provides a lifecycle for the whole application process
  implementation "androidx.lifecycle:lifecycle-process:$lifecycle_version"
}

MultiProvider(
  providers: [
    ...
  ]
)

// Provider for AudioManager
ChangeNotifierProvider<AudioManager>(
  create: (context) => AudioManager(),
  lazy: false,
),

BlocProvider(
  create: (context) => WorkoutSetBloc(
    context.read<AudioManager>(),
  ),
  lazy: false,
),

@override
Widget build(BuildContext context) {
  return MultiProvider(
    providers: [
      // Provider for AudioManager
      ChangeNotifierProvider<AudioManager>(
        create: (context) => AudioManager(),
        lazy: false,
      ),
      BlocProvider(
        create: (context) => WorkoutSetBloc(
          context.read<AudioManager>(),
        ),
        lazy: false,
      ),
    ],
    builder: (context, child) {
      return MaterialApp(
        title: 'Flutter Demo',
        theme: ThemeData(
          ...existing code...