Before any actions please check this link: https://developer.android.com/training/basics/supporting-devices/languages.html How to add new localization: 1. Copy 'values' directory as 'values-YOUR_LOCALE_CODE', locale codes examples: en, es, fr, uk, ru. 2. Translate the texts in the xml files in your locale's 'values' directory. 3. Make pull request. 4. PROFIT