关于本地化， Flutter官方有解决方案，但自认为使用起来不是特别方便。推荐使用Easy_Localization 。
- 快速集成：
在pubspec.yaml文件中
dependencies:
easy_localization: ^3.0.0
flutter:
assets:
- assets/translations/
- 创建相应的语言资源文件
assets
└── translations
├── {languageCode}.{ext} //仅languageCode
├── {languageCode}-{countryCode}.{ext}
├── {languageCode}-{scriptCode}-{countryCode}.{ext} //or full locale code
└── {languageCode}-{scriptCode}.{ext} //
创建的资源文件与下面程序中设置的支持语言一一对应。
例如：
assets
└── translations
├── en.json
├── zh-TW.json
├── zh-Hant-HK.json
└── zh-Hant.json
文件内容：以 en.json为例
{"title":"This is a title"}
- 配置Easy_Localization
import 'package:flutter/material.dart';
import 'package:flutter_localizations/flutter_localizations.dart';
import 'package:easy_localization/easy_localization.dart';
void main() async {
WidgetsFlutterBinding.ensureInitialized();
await EasyLocalization.ensureInitialized();
runApp(
EasyLocalization(
supportedLocales: [
Locale('en'),
Locale('zh', 'TW'),
Locale.fromSubtags(languageCode: 'zh', scriptCode: 'Hant', countryCode: 'TW'),
Locale.fromSubtags(languageCode: 'zh', scriptCode: 'Hant'),
Locale('zh'),
],
path: 'assets/translations', // <-- change the path of the translation files
fallbackLocale: Locale('en', 'US'),
child: MyApp()
),
);
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
localizationsDelegates: context.localizationDelegates,
supportedLocales: context.supportedLocales,
locale: context.locale,
home: MyHomePage()
);
}
}
- 初始化
void main() async{
// ...
// Needs to be called so that we can await for EasyLocalization.ensureInitialized();
WidgetsFlutterBinding.ensureInitialized();
await EasyLocalization.ensureInitialized();
// ...
runApp(....)
// ...
}
- 使用
Text('title').tr() //Text widget
print('title'.tr()); //String
var title = tr('title') //Static function
注意： 如果想适配 繁体，可能需要至少配置 zh-Hant.json
因为 iOS安卓上有可能会出现 多种带有地区的言语类型，比如： 繁体台湾、繁体香港等多种繁体，如果不需要针对每一个地区的语言的话，只要设置zh-Hant.json
