This is a simple quiz application I made for a client. The rest of the documentation is intended for the client.
You can configure the app by editing res/values/config.xml. The settings are documented in the comments in this file. The project won't build if there are errors in this file, so you don't have to worry about messing things up too much.
Assets live in the project's assets directory. When I say "asset path", I mean a path relative to this directory, for example an asset path audio/cow-moo.wav corresponds to the file $PROJECT_PATH/assets/audio/cow-moo.wav.
The questions live in the asset file given by the config file entry config_questionsFile. The format is pretty straightforward, and the comments in quiz-example.xml should make it clear. The xml is validated while it's being loaded (for example, answers indices are less valid), so you should see errors right away when the app starts.
These can be configured by editing the following files:
res/values/styles.xmlcontains some commonly used stylesres/values/strings.xmlcontains externalized strings. Most of the text in the application can be configured here.res/drawable-xhdpi/header_image.pngis the image shown at the top of the categories list. For production you might want to create smaller images for mdpi, ldpi, and hdpi.res/drawable-*dpi/ic_launcher.pngis the app's icon.