flutter-localization

Configure Flutter apps to support multiple languages and locales with proper i18n setup. Configures and implements internationalization (i18n) and localization (l10n) in a Flutter application. This skill manages dependency injection ( flutter_localizations , intl ), code generation configuration ( l10n.yaml ), root widget setup ( MaterialApp , CupertinoApp , or WidgetsApp ), .arb translation file management, and platform-specific configurations (iOS Xcode project updates). It ensures proper locale resolution and prevents common assertion errors related to missing localization delegates in specific widgets like TextField and CupertinoTabBar . Configure Dependencies Update pubspec.yaml to include required packages and enable code generation. Configure Code Generation Create an l10n.yaml file in the project root to define the localization tool's behavior. Define Supported Locales STOP AND ASK THE USER: "Which languages and regions do you want to support? Please provide a list of language codes (e.g., 'en', 'es', 'zh_Hans_CN')." Create ARB Files Generate the template .arb file (e.g., lib/l10n/app_en.arb ) and corresponding translation files.