Translations

Android Studio

The easiest way to edit translations is via the Android Studio Translations-Editor. You can open it by navigating to the res-folder in the project view (left sidebar). In there, select the values folder and open the strings.xml. Android Studio will now ask you to use the Editor. Select Open editor in the upper-right corner.

Manually

You can also check out the repository without Android Studio, and edit the translation-files directly. The "base"-file is this one: app/src/main/res/values/strings.xml The german translation is in this file: app/src/main/res/values-de/strings.xml As you can see, you need to create an value-XX folder, and then tanslate the strings.xml file. XX corresponds to your language's ISO 639 code.

Wikipedia has a list of valid codes.

Contributions are welcome!