49 lines
1.7 KiB
Dart
49 lines
1.7 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_bloc/flutter_bloc.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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class LocaleCubit extends Cubit<Locale> {
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static const String _localeKey = 'app_locale';
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static const String _chosenKey = 'app_locale_chosen';
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/// 用户是否已明确选择过语言（决定登录页是否弹强制语言选择框）
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bool hasChosenLanguage = false;
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LocaleCubit() : super(const Locale('en', 'US')) {
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_loadSavedLocale();
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}
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Future<void> _loadSavedLocale() async {
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try {
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final prefs = await SharedPreferences.getInstance();
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hasChosenLanguage = prefs.getBool(_chosenKey) ?? false;
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if (hasChosenLanguage) {
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final languageCode = prefs.getString('${_localeKey}_lang') ?? 'en';
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final countryCode = prefs.getString('${_localeKey}_country') ?? 'US';
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emit(Locale(languageCode, countryCode));
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} else {
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// 未选择过：默认英文（登录页仍会弹出强制选择框）
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emit(const Locale('en', 'US'));
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}
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} catch (e) {
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emit(const Locale('en', 'US'));
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}
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}
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Future<void> setLocale(Locale locale) async {
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try {
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final prefs = await SharedPreferences.getInstance();
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await prefs.setString('${_localeKey}_lang', locale.languageCode);
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await prefs.setString('${_localeKey}_country', locale.countryCode ?? '');
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await prefs.setBool(_chosenKey, true);
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hasChosenLanguage = true;
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emit(locale);
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} catch (e) {
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debugPrint('❌ [LocaleCubit] 保存语言设置失败: $e');
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}
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}
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bool get isChinese => state.languageCode == 'zh';
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bool get isEnglish => state.languageCode == 'en';
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}
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