Zahar
ee9a9200b6
- integrate flutter_localizations and delegates in MaterialApp - use language-only supportedLocales; add resolution callback - initialize I18n on app start and when switching language - localize capture screen prompt via I18n.t - schedule map centering via postFrame to avoid race conditions - add flutter_localizations to pubspec
104 lines
2.8 KiB
Dart
104 lines
2.8 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import 'i18n.dart';
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/// Provider for managing app locale and language switching
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class LocaleProvider extends ChangeNotifier {
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static const String _languageKey = 'lang';
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static const String _defaultLanguage = 'en';
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Locale _locale = const Locale('en');
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late SharedPreferences _prefs;
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/// Get the current locale
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Locale get locale => _locale;
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/// Get the current language code
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String get languageCode => _locale.languageCode;
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/// Initialize the locale provider
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Future<void> init() async {
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_prefs = await SharedPreferences.getInstance();
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final savedLanguage = _prefs.getString(_languageKey) ?? _defaultLanguage;
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_locale = Locale(savedLanguage);
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await I18n.init(_locale);
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notifyListeners();
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}
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/// Set the locale and persist the change
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Future<void> setLocale(Locale locale) async {
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if (_locale == locale) return;
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_locale = locale;
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await _prefs.setString(_languageKey, locale.languageCode);
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await I18n.init(locale);
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notifyListeners();
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}
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/// Toggle between English and Bahasa Malaysia
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Future<void> toggleLanguage() async {
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final newLanguage = _locale.languageCode == 'en' ? 'ms' : 'en';
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await setLocale(Locale(newLanguage));
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}
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/// Set language to English
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Future<void> setEnglish() async {
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await setLocale(const Locale('en'));
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}
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/// Set language to Bahasa Malaysia
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Future<void> setMalay() async {
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await setLocale(const Locale('ms'));
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}
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/// Check if current language is English
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bool get isEnglish => _locale.languageCode == 'en';
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/// Check if current language is Bahasa Malaysia
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bool get isMalay => _locale.languageCode == 'ms';
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/// Get the display name for the current language
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String get currentLanguageDisplayName {
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switch (_locale.languageCode) {
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case 'en':
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return 'English';
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case 'ms':
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return 'Bahasa Malaysia';
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default:
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return 'English';
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}
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}
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/// Get the native display name for the current language
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String get currentLanguageNativeName {
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switch (_locale.languageCode) {
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case 'en':
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return 'English';
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case 'ms':
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return 'Bahasa Malaysia';
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default:
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return 'English';
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}
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}
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/// Get available locales
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List<Locale> get availableLocales => const [
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Locale('en'),
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Locale('ms'),
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];
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/// Get available language codes
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List<String> get availableLanguageCodes => ['en', 'ms'];
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/// Clear saved language preference
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Future<void> clearSavedLanguage() async {
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await _prefs.remove(_languageKey);
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_locale = const Locale(_defaultLanguage);
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notifyListeners();
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}
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/// Reset to default language
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Future<void> resetToDefault() async {
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await setLocale(const Locale(_defaultLanguage));
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}
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} |