In Part 2 you created your first animated mobile app using Android Studio. Now in Part 3 you'll conclude your introduction to mobile application development with Android Studio. First, you'll use Gradle, an open source build automation tool, to build the app's application package (APK) file. Then you'll get instructions to set up and run the app on an Android device emulator or a Kindle Fire HD tablet.
Building the app
You've loaded your source code and resource files into your Android Studio project and now you're ready to build your app for the first time. In the project window you'll see that Android Studio provides a Build menu. You'll use this menu to access Gradle and build W2A.