# 『Flutter』 多國語言,intl套件
###### tags: `Flutter`

## 安裝
### 安裝 flutter_localizations

dependencies:

flutter_localizations:
    sdk: flutter

### 安裝插件
Preferences -> Plugins -> Flutter Intl

https://plugins.jetbrains.com/plugin/13666-flutter-intl

## 使用
Tools -> Flutter Intl -> Initialize for the Project 建立


Add Locale 添加語言


插件產生的資料結構,可以從arb檔案修改json


MaterialApp 配置

ocalizationsDelegates: [
        S.delegate,
        GlobalMaterialLocalizations.delegate,
        GlobalCupertinoLocalizations.delegate,
        GlobalWidgetsLocalizations.delegate
      ],
supportedLocales: S.delegate.supportedLocales,

後面新版本已經不需要多處理繁簡問題了

localeResolutionCallback: (locale, supportLocales) {
  // 中文 简繁体处理
  if (locale?.languageCode == 'zh') {
    if (locale?.scriptCode == 'Hant') {
      return const Locale('zh', 'TW'); //繁体
    } else {
      return const Locale('zh', 'CN'); //简体
    }
  }
  return null;
}

IOS配置


範例

import 'generated/l10n.dart';

Text(S.of(context).title,)

載入

S.load(Locale('en'));

參考
https://juejin.im/post/5e4536d0e51d4526ef5f85a9

支援代碼表

https://api.flutter.dev/flutter/flutter_localizations/GlobalMaterialLocalizations-class.html