从右向左（RTL）颤动

首先，您必须将

flutter_localizations

pubspec.yml

dependencies:  flutter:    sdk: flutter  flutter_localizations:    sdk: flutter

现在您有两个选择：

1.在所有设备上强制使用语言环境（和方向）

- 方法1： 本地化

import 'package:flutter/material.dart';import 'package:flutter_localizations/flutter_localizations.dart';MaterialApp(  localizationsDelegates: [    GlobalMaterialLocalizations.delegate,    GlobalWidgetsLocalizations.delegate,  ],  supportedLocales: [    Locale("fa", "IR"), // OR Locale('ar', 'AE') OR Other RTL locales  ],  locale: Locale("fa", "IR") // OR Locale('ar', 'AE') OR Other RTL locales,  .  .  .);

- 方法2： 不进行本地化（如果使用此方法，则无需添加

flutter_localizations

MaterialApp(  .  .  .  builder: (context, child) {    return Directionality(      textDirection: TextDirection.rtl,      child: child,    );  },  .  .  .);

2.根据设备的区域设置设置布局方向（如果用户电话的区域设置是一种

RTL

supportedLocales

RTL

LTR

import 'package:flutter/material.dart';import 'package:flutter_localizations/flutter_localizations.dart';MaterialApp(  localizationsDelegates: [    GlobalMaterialLocalizations.delegate,    GlobalWidgetsLocalizations.delegate,  ],  supportedLocales: [    Locale("en", "US"),    Locale("fa", "IR"), // OR Locale('ar', 'AE') OR Other RTL locales  ],  .  .  .);

注意 ：RTL语言在flutter中是：

[  'ar', // Arabic  'fa', // Farsi  'he', // Hebrew  'ps', // Pashto  'ur', // Urdu];