pub package

Support for multiple abr and messages localization files for intl package.


If you want to have multiple arb files and register separate delegate for each one of them, then you have a problem. Intl doesn't allow multiple initializeMessages calls. Only first one will be processed and only it's messages will be used. Every calls after the first one will be ignored.

Why do we need to have multiple arb files?

In common scenario - we don't. Just put all localization string in single file and enjoy. But if you want to add intl localization with arb files to separate package, and than use it in you project with it's own localization files - that's problem.

MultipleLocalizations supports using Localizations.override(delegates: [SomeLocalizationsDelegate(), ...]) widget, too.

Exactly for that situation this package was developed.

See article on Medium for more details - Localization for Dart package.


To use this package, add multiple_localization as a dependency in your pubspec.yaml file.

Than use MultipleLocalizations.load for your delegate load function, instead of call initializeMessages explicitly.


class _AppLocalizationsDelegate extends LocalizationsDelegate<AppLocalizations> {
  const _AppLocalizationsDelegate();

  bool isSupported(Locale locale) {
    return ['en', 'ru'].contains(locale.languageCode);

  Future<AppLocalizations> load(Locale locale) {
    return MultipleLocalizations.load(
        initializeMessages, locale, (l) => AppLocalizations(l),
        setDefaultLocale: true);

  bool shouldReload(LocalizationsDelegate<AppLocalizations> old) {
    return false;