65 lines
1.9 KiB
Dart
65 lines
1.9 KiB
Dart
import 'dart:convert';
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import 'dart:ui';
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import 'package:devicelocale/devicelocale.dart';
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import 'package:flutter/services.dart';
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import 'package:get/get.dart';
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import 'package:trans_lark/entity/language_entity.dart';
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import 'package:trans_lark/generated/assets.dart';
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import 'package:trans_lark/util/num_util.dart';
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class TranslateManager {
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TranslateManager._();
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static final TranslateManager _instance = TranslateManager._();
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factory TranslateManager() {
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return _instance;
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}
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/// 支持翻译的所有语言
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var languageList = <LanguageEntity>[].obs;
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/// 源语言
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var fromLanguageEntity = LanguageEntity(
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languageCode: 'en',
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languageName: 'English',
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).obs;
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/// 目标语言
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var toLanguageEntity = LanguageEntity(
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languageCode: 'zh-cn',
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languageName: 'Chinese (Simplified)',
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).obs;
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/// 是否选择的源语言
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var isSelectFromLanguage = true.obs;
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Future<void> init() async {
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var data = jsonDecode(await rootBundle.loadString(Assets.jsonLanguage));
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if (data != null && data is List) {
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languageList.value = data.map((e) => LanguageEntity.fromMap(e)).toList();
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}
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List<Locale> languages = await Devicelocale.preferredLanguagesAsLocales;
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if (languages.isNotEmpty) {
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var languageEntity = languageList.firstWhereOrNull((e) => e.languageCode.contains(languages[0].languageCode));
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if (languageEntity != null) {
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toLanguageEntity.value = languageEntity.copyWith();
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}
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if (toLanguageEntity.value.languageCode == fromLanguageEntity.value.languageCode) {
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var index = 0;
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for (var i = 0; i < languageList.length; ++i) {
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var o = languages[i];
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if (o.languageCode == toLanguageEntity.value.languageCode) {
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index = i;
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break;
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}
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}
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var num = NumUtil.getRandomNumberExcludingCurrent(0, languageList.length, index);
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fromLanguageEntity.value = languageList[num].copyWith();
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}
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}
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}
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}
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