dependencies:
  flutter:
    sdk: flutter
  flutter_localizations:
    sdk: flutter
  intl: any

flutter:
  generate: true # Required for l10n code generation

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

undefined

{
  "helloWorld": "Hello World!",
  "@helloWorld": {
    "description": "The conventional newborn programmer greeting"
  }
}

{
  "helloWorld": "¡Hola Mundo!"
}

import 'package:flutter_localizations/flutter_localizations.dart';
import 'package:flutter_gen/gen_l10n/app_localizations.dart'; // Adjust import if synthetic-package is false

return MaterialApp(
  title: 'Localized App',
  localizationsDelegates: const [
    AppLocalizations.delegate,
    GlobalMaterialLocalizations.delegate,
    GlobalWidgetsLocalizations.delegate,
    GlobalCupertinoLocalizations.delegate,
  ],
  supportedLocales: const [
    Locale('en'), // English
    Locale('es'), // Spanish
  ],
  home: const MyHomePage(),
);

Text(AppLocalizations.of(context)!.helloWorld)

"hello": "Hello {userName}",
"@hello": {
  "description": "A message with a single parameter",
  "placeholders": {
    "userName": {
      "type": "String",
      "example": "Bob"
    }
  }
}

"nWombats": "{count, plural, =0{no wombats} =1{1 wombat} other{{count} wombats}}",
"@nWombats": {
  "placeholders": {
    "count": {
      "type": "num",
      "format": "compact"
    }
  }
}

"pronoun": "{gender, select, male{he} female{she} other{they}}",
"@pronoun": {
  "placeholders": {
    "gender": {
      "type": "String"
    }
  }
}

"dateMessage": "Date: {date}",
"@dateMessage": {
  "placeholders": {
    "date": {
      "type": "DateTime",
      "format": "yMd"
    }
  }
}

Localizations(
  locale: const Locale('en', 'US'),
  delegates: const [
    DefaultWidgetsLocalizations.delegate,
    DefaultMaterialLocalizations.delegate, // Required for TextField
    DefaultCupertinoLocalizations.delegate, // Required for CupertinoTabBar
  ],
  child: child,
)

supportedLocales: const [
  Locale.fromSubtags(languageCode: 'zh', scriptCode: 'Hans', countryCode: 'CN'),
  Locale.fromSubtags(languageCode: 'zh', scriptCode: 'Hant', countryCode: 'TW'),
]