app_localizations.dart

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import 'package:flutter/material.dart';
import 'translations/ar.dart';
import 'translations/en.dart';
 
class AppLocalizations {
  final Locale locale;
  
  AppLocalizations(this.locale);
  
  // Helper method to keep the code in the widgets concise
  static AppLocalizations of(BuildContext context) {
    return Localizations.of<AppLocalizations>(context, AppLocalizations)!;
  }
  
  // Static member to have a simple access to the delegate from the MaterialApp
  static const LocalizationsDelegate<AppLocalizations> delegate = _AppLocalizationsDelegate();
  
  // List of supported locales
  static const List<Locale> supportedLocales = [
    Locale('en', ''),  // English
    Locale('ar', ''),  // Arabic
  ];
  
  // Maps language code to the respective translations
  static final Map<String, Map<String, String>> _localizedValues = {
    'en': en,
    'ar': ar,
  };
  
  // This method will be called from every widget that needs a localized text
  String translate(String key) {
    return _localizedValues[locale.languageCode]?[key] ?? key;
  }
}
 
// LocalizationsDelegate is a factory for a set of localized resources
class _AppLocalizationsDelegate extends LocalizationsDelegate<AppLocalizations> {
  const _AppLocalizationsDelegate();
  
  @override
  bool isSupported(Locale locale) {
    return ['en', 'ar'].contains(locale.languageCode);
  }
  
  @override
  Future<AppLocalizations> load(Locale locale) async {
    return AppLocalizations(locale);
  }
  
  @override
  bool shouldReload(_AppLocalizationsDelegate old) => false;
}