Flutter In-App Localization Guide
Switch languages inside your Flutter app, independent of device settings.
Capability Features
App-Specific Localization
Language Selection Page
JSON Language Files
Asset Declaration for Localization
AppTranslations Class
AppTranslationsDelegate
Dynamic Locale Change
Add New Languages Easily
Supported Locales List
Maintained in Application class
Integration Features
Flutter Localizations Dependency
MaterialApp Integration
Flutter Framework
Limitation Features
Manual Text Key Replacement
No Automatic Device Language Sync
Requires JSON File Update per Language