Internationalizing Flutter apps

I. Basic setttings: 

1. In pubspec.yaml add below to dependencies:

# Localization
flutter_localizations:
  sdk: flutter
intl: ^0.18.0
intl_utils: ^2.8.3

2. Create intl_en.arb, intl_vi.arb into lib/l10n:

intl_vi.arb: 

{
  "@@locale": "vi",
  "app_name": "vieBooks",
  "greeting": "Xin chào!"
}

intl_en.arb:

{
  "@@locale": "en",
  "app_name": "vieBooks",
  "greeting": "Hello!"
}

3. Run flutter pub run intl_utils:generate to generate languages files into lib/generate

4. Update main.dart

5. Checking the result:

II. Advanced setting with parameters: