right to left (RTL)

从右向左布局

1. 设置全局从右到左

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

2. 根据地区自动支持

1: 添加本地化插件

添加 flutter_localizations 到 pubspec.yml  中：

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

2：实现从右到左

在 supportedLocales 中的语言，如果是 RTL 的语言，将自动会实现 RLT 的阅读顺序

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,
  .
  .
  .
);