flutter-internationalization

Configure Flutter localization with gen-l10n and ARB translation files.

21|16|Updated Apr 11, 2026
One-click install
npx skills add https://github.com/xiaoliwanshui/cool-admin-flutter --skill flutter-internationalization-xiaoliwanshui
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: flutter-internationalization
Source: https://github.com/xiaoliwanshui/cool-admin-flutter/tree/main/.trae/skills/flutter-internationalization
Command: npx skills add https://github.com/xiaoliwanshui/cool-admin-flutter --skill flutter-internationalization-xiaoliwanshui

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Flutter apps often ship without localization, making it hard to reach multilingual users. This guide provides a complete approach to add internationalization using gen-l10n and the intl package, manage translations, and format locale-specific content.

Core Features & Use Cases

  • Setup and configuration for flutter_localizations, gen-l10n, and ARB workflow.
  • Message management, translation workflows, and locale-aware formatting for numbers and dates.
  • Use Case: Internationalize a chat app to support English, Spanish, and Chinese users with proper translations and locale formatting.

Quick Start

Create a new Flutter project, enable gen-l10n, add ARB files under lib/l10n, and wire LocalizationsDelegates in MaterialApp.

Frequently Asked Questions about flutter-internationalization

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I add internationalization to a Flutter app using gen-l10n?

To add internationalization to a Flutter app, integrate gen-l10n by enabling flutter_localizations, adding ARB files under lib/l10n, and wiring LocalizationsDelegates in MaterialApp. This setup enables multi-language user interfaces and translation management.

What is the best way to manage multilanguage translations in Flutter with ARB files?

Managing multilanguage translations in Flutter relies on the ARB workflow with gen-l10n. You create ARB files for each locale under lib/l10n, which the intl package then processes to generate localization classes for your app's UI.

Does Flutter intl package support locale-aware formatting for numbers and dates?

Yes, the Flutter intl package supports locale-aware formatting for numbers and dates. By integrating intl with your localization setup, you ensure numbers and dates display correctly according to the user's selected locale conventions.

How do I configure Flutter pubspec.yaml for multi-language UI support?

To configure Flutter for multi-language UI support, update pubspec.yaml to include flutter_localizations and enable the gen-l10n tool. This configuration activates the ARB workflow and LocalizationsDelegates required for multilanguage interfaces.

When do I need ARB files for Flutter localization?

You need ARB files for Flutter localization when setting up multi-language interfaces with gen-l10n. These ARB files store your translated messages and locale-specific resources, which gen-l10n uses to generate the Dart code for your app.

Can I use Flutter gen-l10n to support English, Spanish, and Chinese users simultaneously?

Yes, you can use Flutter gen-l10n to support English, Spanish, and Chinese users simultaneously. By creating dedicated ARB files for each locale, gen-l10n generates the necessary code to switch languages and format content per region.