page.title=Building Your First App
page.metaDescription=If you're new to Android app development, this where you should begin. This series of lessons shows you how to create a new project, build a simple app, and run it on a device or emulator.

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next.title=Creating an Android Project
next.link=creating-project.html

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<h2>Dependencies and prerequisites</h2> 

<ul>
  <li><a href="http://developer.android.com/sdk/index.html">Android SDK</a></li>
  <li><a href="{@docRoot}tools/sdk/eclipse-adt.html">ADT Plugin</a> 20.0.0 or higher
    (if you're using Eclipse)</li>
</ul>
 
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<p>Welcome to Android application development!</p> 

<p>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.</p>

<p>Before you start this class, be sure you have your development environment set up. You need
to:</p>
<ol>
  <li>Download the Android SDK.</li>
  <li>Install the ADT plugin for Eclipse (if you’ll use the Eclipse IDE).</li>
  <li>Download the latest SDK tools and platforms using the SDK Manager.</li>
</ol>

<p>If you haven't already done these tasks, start by downloading the
  <a href="{@docRoot}sdk/index.html">Android SDK</a> and following the install steps.
  Once you've finished the setup, you're ready to begin this class.</p>

<p>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.</p>

<p><strong><a href="creating-project.html">Start the first lesson &rsaquo;</a></strong></p>