Android App Localization: strings.xml, Plurals & Best Practices
Complete 2026 guide to localizing an Android app. Covers how resource qualifier folders (values-de, values-es-rMX, values-b+sr+Latn) resolve a locale, strings.xml and string-arrays with correct escaping, positional format args and <xliff:g>, the <plurals> element and getQuantityString (with the count-passed-twice gotcha), reading strings in Views and Jetpack Compose, per-app language on Android 13+ with setApplicationLocales, RTL, number/date formatting, pseudolocale testing, a best-practices checklist, and exporting strings.xml to PO files for translators.