right-to-left (RTL) in flutter

Question

I was using Flutter more than a week, and wanted to create an Arabic (right-to-left) app.

I was reading Internationalizing Flutter Apps, but it didn't mention how to set the layout direction.

So, how to show right-to-left (RTL) layout in Flutter?

If you just need to set the text direction set the `textDirection` property to TextDirection.rtl your TextField or Text widget. — Son of Stackoverflow, Sep 01 '19 at 19:20
How to restrict a widget to change its children's alignment when the locale is changed? Could you please solve this https://stackoverflow.com/questions/65180615/restrict-a-widget-to-change-its-childrens-alignment-when-locale-is-changed-flut — Febin K R, Dec 07 '20 at 15:16

score 117 · Accepted Answer · edited Jan 04 '21 at 10:09

you have two choices :

1. force a locale ( and direction ) on all devices

-- method 1: with localization

add flutter_localizations package to your pubspec.yml

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

then

import 'package:flutter/material.dart';
import 'package:flutter_localizations/flutter_localizations.dart';

MaterialApp(
  localizationsDelegates: [
    GlobalCupertinoLocalizations.delegate,
    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,
  .
  .
  .
);

-- method 2: without localization

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

2. set layout direction according to device locale ( if user phone locale is a RTL language and exist in supportedLocales, your app run in RTL mode, otherwise your app is LTR )

add flutter_localizations package to your pubspec.yml

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

then

import 'package:flutter/material.dart';
import 'package:flutter_localizations/flutter_localizations.dart';

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

note : rtl languages in flutter are:

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

The getter 'rtl' isn't defined for the type 'TextDirection'. — Bhargav Sejpal, Aug 07 '20 at 09:05
@BhargavSejpal if you imported `intl`package, you must import intl with name : `import 'package:intl/intl.dart' as intl` — DJafari, Aug 07 '20 at 23:51

AbdulMomen عبدالمؤمن · Answer 2 · 2018-06-20T06:37:24.767

You need to create a Builder and pass it the layout direction using TextDirection.rtl

new MaterialApp(
          title: 'Flutter RTL',
          color: Colors.grey,
          builder: (BuildContext context, Widget child) {
              return new Directionality(
                textDirection: TextDirection.rtl,
                child: new Builder(
                  builder: (BuildContext context) {
                    return new MediaQuery(
                      data: MediaQuery.of(context).copyWith(
                            textScaleFactor: 1.0,
                          ),
                      child: child,
                    );
                  },
                ),
              );
            },
          .
          .
          .
        );

Although it's working, I don't like this answer. You have provided no explanation about how it works or how doing this affects other layouting calculations and etc. — aderchox, Jan 20 '20 at 16:55

score 22 · Answer 3 · answered Sep 10 '19 at 04:08

22

The best and shortest way to set RTL configuration for the entire app.

void main() {
  runApp(
    MaterialApp(
      home: Directionality( // add this
        textDirection: TextDirection.rtl, // set this property 
        child: HomePage(),
      ),
    ),
  );
}

answered Sep 10 '19 at 04:08

CopsOnRoad

109,635
30
367
257

@dod_basim did any of the other solution work for you? – CopsOnRoad Sep 28 '19 at 05:32
error: The argument type 'TextDirection (where TextDirection is defined in D:\flutter\.pub-cache\hosted\pub.dartlang.org\intl-0.15.8\lib\src\intl\bidi_utils.dart)' can't be assigned to the parameter type 'TextDirection (where TextDirection is defined in D:\flutter\bin\cache\pkg\sky_engine\lib\ui\text.dart)'. (argument_type_not_assignable at [zapit] lib\main.dart:186) – Elia Weiss Dec 04 '19 at 16:25
@EliaWeiss Make sure you don't import any other conflicting package, this is the one you should be using import `package:flutter/material.dart`; – CopsOnRoad Dec 05 '19 at 03:31
How to set dynamic when button click from any page? As user wants to change RTL to LTR then how to do? – Pradeep Jul 14 '20 at 11:17

score 4 · Answer 4 · edited Jul 15 '20 at 03:35

4

If you need to display text in reverse direction then just set it's textdirection property to TextDirection.rtl.

Example code for TextField widget,

TextField(
  textDirection: TextDirection.rtl,
  decoration: InputDecoration(
    labelText: "Enter Pashto Name",
  ),
),

Example code for Text widget,

    Text(
      "This text is in the other direction!"
      textDirection: TextDirection.rtl,
    ),

edited Jul 15 '20 at 03:35

Son of Stackoverflow

1,185
3
20

answered Sep 01 '19 at 18:35

Abdurahman Popal

1,562
16
15

You can even use it for Text widget – Son of Stackoverflow Sep 01 '19 at 19:29

score 3 · Answer 5 · answered Oct 23 '20 at 02:52

The SfRangeSelector supports changing the layout direction of the widget in the right-to-left direction by setting the textDirection property to rtl in the Directionality widget.

SfRangeValues _initialValues = SfRangeValues(4.0, 8.0);

@override
Widget build(BuildContext context) {
  return MaterialApp(
      home: Scaffold(
          body: Directionality(
            textDirection: TextDirection.rtl,
            child: Center(
              child: SfRangeSelector(
                min: 2.0,
                max: 10.0,
                interval: 1,
                showLabels: true,
                showTicks: true,
                initialValues: _initialValues,
                child: Container(
                    color: Colors.pink[200],
                    height: 150,
                 ),
              ),
            )
         ),
      )
  );
}

Ans From: https://help.syncfusion.com/flutter/range-selector/right-to-left

right-to-left (RTL) in flutter

5 Answers5

Linked