How to build an Android app

Welcome to Android application development! This class teaches you how to build your first Android app. You’ll learn how to create an Android project and run a debuggable version of the app. You'll also learn some fundamentals of Android app design, including how to build a simple user interface and handle user input. Before you start this class, be sure you have your development environment set up. You need to:
1. Download the Android SDK.
2. Install the ADT plugin for Eclipse (if you’ll use the Eclipse IDE).
 3. Download the latest SDK tools and platforms using the SDK Manager. If you haven't already done these tasks, start by downloading the Android SDK and following the install steps. Once you've finished the setup, you're ready to begin this class. This class uses a tutorial format that incrementally builds a small Android app that teaches you some fundamental concepts about Android development, so it's important that you follow each step.
Start the first lesson. . .