Internationalization questions
Short, practical answers to common software internationalization and localization questions, grouped by platform and topic.
Common questions about Flutter internationalization
- Do I need to include the country code in the locale in Flutter?
- How can I include a placeholder in a localization message in Flutter?
- How can I use a different locale than the one defined for the whole Flutter app in one part of it?
- How do I detect the device language in Flutter?
- How do I fix the intl version conflict with flutter_localizations?
- How to detect unused string keys in Flutter ARB files?
- How to download localization files at runtime and use them in a Flutter app?
- How to get a localization message with a dynamic string key value in Flutter?
- How to localize Flutter app name?
- How to localize server data in Flutter?
- How to persist selected language in Flutter?
- How to programmatically change the locale in Flutter?
- How to reference string keys in Flutter without context?
- How to use localized date in Flutter?
- How to use localized number in Flutter?
- Is it possible to define a string in a Flutter ARB file that should not be translated?
- Is there a way I can translate my Flutter app for free?
- Why can't Flutter import package:flutter_gen/gen_l10n/app_localizations.dart anymore?
- Why does Flutter say the application's locale is not supported by all of its localization delegates?
- Why does Flutter throw a LocaleDataException saying the locale data has not been initialized?
- Why doesn't Flutter generate localization files?
- Why doesn't text direction change for RTL languages in Flutter?
- Why Flutter localization does not work on iOS platform?
- Why Flutter returns null for AppLocalizations.of(context)?
Common questions about React internationalization
- How do I change the language in react-i18next?
- How do I pass variables into an i18next translation?
- How do I use a translated string in an input placeholder with react-intl?
- How to access current locale in React app using react-intl?
- How to add a language switcher in a React app?
- How to add a newline to a localization message in React?
- How to add HTML tags to a localization message in React?
- How to configure React app architecture to support localization?
- How to do lazy loading of translations in React?
- How to extract localization messages in React?
- How to fix react-intl missing message error in React?
- How do I fix "You will need to pass in an i18next instance by using initReactI18next"?
- How to format dates in React app?
- How to format numbers in React app?
- How to implement localization in React?
- How to localize React app that uses third party UI libraries like MS Fluent UI and Material UI?
- How to programmatically set the language in a React app?
- How to set proper text direction in a localized React app?
- How to use dynamic strings in a localization message in React?
- How to use localization messages in non-component code in React?
- How to use React context for internationalization?
- React-intl vs React-i18next?
- What is the best practice for storing multi-language text in a React app?
- What should the workflow look like between developers and translators when localizing a React app?
- Where to save preferred language in React app?
Common questions about Android localization
- How do I change the app language programmatically on Android?
- How do I fix the Android error "is translated here but not found in default locale"?
- How do I get the current app or device language on Android?
- How do I ignore "is not translated in" (MissingTranslation) lint errors in Android?
- How do I insert a variable into a localized string in Android?
- How do I use a percent sign in Android strings.xml?
- What are the Android resource folder names for languages and regions, including Simplified and Traditional Chinese?
- What is xliff:g in Android strings.xml and when should I use it?
Common questions about iOS and macOS localization
- How do I change the app language programmatically in iOS?
- How do I localize plurals in an iOS app?
- How do I localize text in SwiftUI?
- How do I localize the iOS app name?
- How do I set the default (fallback) language of an iOS app?
- How do I use variables in a localized string in Swift?
- What is the difference between es and es-419 in iOS localization?
- Why is Localizable.strings not working in my iOS app?
Common questions about ICU message format and plurals
- How do I combine gender and count in one ICU message?
- How do I escape braces and apostrophes in ICU message format?
- How do I format numbers, dates and currencies inside an ICU message?
- How do I write plural messages in ICU message format?
- What is the difference between plural and select in ICU message format?
- Which libraries and platforms support ICU message format?
- Why does my ICU plural translation show the wrong form?
Common questions about localization file formats
- How do I convert a .mo file back to a .po file?
- How do I create or update a PO file?
- How do I use UTF-8 in Java .properties files with ResourceBundle?
- How do I use variables in Rails i18n YAML files?
- How do I write line breaks and special characters in YAML localization files?
- How should I structure Rails i18n YAML files?
Common questions about software localization
- How do I declare the language of an HTML page?
- How do I detect the user's preferred language in the browser?
- How should I structure a database for multilingual content?
- Should I use en_US or en-US?
- What are the language codes for Simplified and Traditional Chinese?
- What is pseudo-localization and how do I use it?
Resources
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Free tools
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