Zahar
6d6e9300f6
Improve app UX by adding animated transitions for screen switches and introducing a persisted guest onboarding flow. - Add AnimatedSwitcher-based fade+slide transitions for screens and tab switches for smoother navigation. - Persist a 'user_mode' SharedPreferences key and provide guest helpers to mark users as guest and influence routing. - Update SignInScreen continue-as-guest action to set onboarding and guest flags and navigate to MainScreen. - Normalize locales in LocaleProvider to language-only values and persist normalized language codes to ensure compatibility with Flutter localization delegates. - Replace Row with Wrap in ReportCard to improve spacing and responsiveness. No breaking changes
110 lines
3.2 KiB
Dart
110 lines
3.2 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 saved = _prefs.getString(_languageKey) ?? _defaultLanguage;
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final parts = saved.split(RegExp(r'[-_]'));
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// Normalize and keep language-only locales so they match Global*Localizations delegates
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final language = parts.isNotEmpty && parts[0].isNotEmpty ? parts[0] : _defaultLanguage;
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_locale = Locale(language);
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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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// Normalize to language-only locale to ensure compatibility with delegates
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final normalized = Locale(locale.languageCode);
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if (_locale == normalized) return;
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_locale = normalized;
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final saveValue = _locale.languageCode;
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await _prefs.setString(_languageKey, saveValue);
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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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} |