qzl
96 lines
3.0 KiB
Dart
96 lines
3.0 KiB
Dart
import 'package:flutter/material.dart';
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import '../../../../l10n/app_localizations.dart';
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import '../../../../shared/theme/design_tokens.dart';
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import '../widgets/settings_section_widgets.dart';
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class LanguageSettingsScreen extends StatelessWidget {
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const LanguageSettingsScreen({super.key, required this.selectedLanguageTag});
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final String selectedLanguageTag;
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@override
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Widget build(BuildContext context) {
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final l10n = AppLocalizations.of(context)!;
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final colors = Theme.of(context).colorScheme;
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final options = _buildLanguageOptions(l10n);
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return Scaffold(
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backgroundColor: colors.surfaceContainerLow,
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appBar: AppBar(
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title: Text(l10n.language),
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centerTitle: true,
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backgroundColor: colors.surfaceContainerLow,
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surfaceTintColor: colors.surfaceContainerLow,
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),
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body: ListView(
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padding: const EdgeInsets.all(AppSpacing.lg),
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children: [
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SectionLabel(text: l10n.settingsLanguageSection),
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SettingsGroupCard(
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children: [
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for (int i = 0; i < options.length; i++)
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SettingsMenuTile(
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icon: Icons.language_rounded,
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title: options[i].label,
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subtitle: options[i].tag,
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tint: colors.primary,
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background: colors.surfaceContainerHighest,
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showDivider: i != options.length - 1,
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showChevron: false,
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trailing: selectedLanguageTag == options[i].tag
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? Icon(Icons.check_rounded, color: colors.primary)
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: null,
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onTap: () => Navigator.of(context).pop(options[i].tag),
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),
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],
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),
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],
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),
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);
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}
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List<({String tag, String label})> _buildLanguageOptions(
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AppLocalizations l10n,
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) {
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final supportedLocales = AppLocalizations.supportedLocales;
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return supportedLocales.map((locale) {
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final tag = _localeToTag(locale);
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final label = _getLocaleLabel(locale, l10n);
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return (tag: tag, label: label);
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}).toList();
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}
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String _localeToTag(Locale locale) {
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final lang = locale.languageCode;
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final script = locale.scriptCode;
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final country = locale.countryCode;
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if (script != null && country != null) {
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return '$lang-$script-$country';
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} else if (country != null) {
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return '$lang-$country';
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} else if (script != null) {
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return '$lang-$script';
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}
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return _mapToBackendTag(lang);
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}
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String _mapToBackendTag(String flutterTag) {
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const mapping = {'zh': 'zh-CN', 'en': 'en-US'};
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return mapping[flutterTag] ?? flutterTag;
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}
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String _getLocaleLabel(Locale locale, AppLocalizations l10n) {
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if (locale.languageCode == 'en') {
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return l10n.english;
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} else if (locale.languageCode == 'zh') {
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if (locale.scriptCode == 'Hant') {
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return '繁體中文';
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}
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return '简体中文';
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}
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return locale.languageCode;
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}
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}
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