You've stumbled upon the source code for the Android and Glass development tutorials from Obsessive Compulsive Developers.

If the project you are running uses Google Play Services, you will have to import the library project from the sdk/extras directory.

#Tutorials

1. Using a translucent action bar with Google Maps

2. Displaying a grocery List with the GDK

3. Menus and voice input with the GDK

4. Extend BaseAdapter instead of ArrayAdapter for custom list items

Happy coding!