page.title=Adding SDK Packages

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<p>
By default, the Android SDK does not include everything you need to start developing.
The SDK separates tools, platforms, and other components into packages you can
download as needed using the
<a href="{@docRoot}tools/help/sdk-manager.html">Android SDK Manager</a>.
So before you can start, there are a few packages you should add to your Android SDK.</p>

<p>To start adding packages, launch the Android SDK Manager in one of the following ways:</p>
<ul>
  <li>In Eclipse or Android Studio, click <strong>SDK Manager</strong>
<img src="{@docRoot}images/tools/sdk-manager-studio.png"
style="vertical-align:bottom;margin:0;height:17px" /> in the toolbar.</li>
  <li>If you're not using Eclipse or Android Studio:
    <ul>
      <li>Windows: Double-click the <code>SDK Manager.exe</code> file at the root of the Android
  SDK directory.</li>
      <li>Mac/Linux: Open a terminal and navigate to the <code>tools/</code> directory in the
  Android SDK, then execute <code>android sdk</code>.</li>
    </ul>
  </li>
</ul>

<ol class="large">
<li>
  <h2 id="GetTools" class="norule">Get the latest SDK tools</h2>

<img src="/images/sdk_manager_packages.png" alt="" width="350" style="float:right;margin-left:20px" />

  <p>As a minimum when setting up the Android SDK,
  you should download the latest tools and Android platform:</p>
  <ol>
   <li>Open the Tools directory and select:
     <ul>
       <li><strong>Android SDK Tools</strong></li>
       <li><strong>Android SDK Platform-tools</strong></li>
       <li><strong>Android SDK Build-tools</strong></li>
     </ul>
   </li>
   <li>Open the first Android X.X folder (the latest version) and select:
     <ul>
      <li><strong>SDK Platform</strong></li>
      <li>A system image for the emulator, such as <br>
      <strong>ARM EABI v7a System Image</strong></li>
     </ul>
   </li>
   <li>Click <strong>Install</strong>.</li>
  </ol>
</li>

<li>
  <h2 id="GetSupportLib" class="norule">Get the support library for additional APIs</h2>

  <div class="sidebox">
    <h3>Why use the support library?</h3>

    <p>The support library is required for:</p>
    <ul>
      <li><a href="{@docRoot}wear/index.html">Android Wear</a></li>
      <li><a href="{@docRoot}tv/index.html">Android TV</a></li>
      <li><a href="{@docRoot}google/play-services/cast.html">Google Cast</a></li>
    </ul>

    <p>The support library also provides these popular APIs:</p>
    <ul>
      <li><a href="{@docRoot}reference/android/support/v4/widget/DrawerLayout.html">Navigation
      drawer</a></li>
      <li><a href="{@docRoot}reference/android/support/v4/view/ViewPager.html">Swipe views</a></li>
      <li><a href="{@docRoot}reference/android/support/v7/app/ActionBar.html">Backward-compatible
      action bar</a></li>
    </ul>
  </div>

  <p>The <a href="{@docRoot}tools/support-library/features.html">Android Support Library</a>
  provides an extended set of APIs that are compatible with most versions of Android.</p>

  <p>To download the support library:</p>
  <ol>
    <li>Open the <strong>Extras</strong> directory and select:
     <ul>
       <li><strong>Android Support Repository</strong></li>
       <li><strong>Android Support Library</strong></li>
     </ul>
    </li>
    <li>Click <strong>Install</strong>.</li>
  </ol>

  <p>&nbsp;</p>
  <p>&nbsp;</p>

</li>


<li>
  <h2 id="GetGoogle" class="norule">Get Google Play services for even more APIs</h2>

  <div class="sidebox">
    <h3>Why use Google Play services?</h3>

    <p>The Google Play services APIs provide a variety of features and services for your Android
    apps, such as:</p>
    <ul>
      <li><a href="{@docRoot}google/play-services/plus.html">User authentication</a></li>
      <li><a href="{@docRoot}google/play-services/maps.html">Google Maps</a></li>
      <li><a href="{@docRoot}google/play-services/cast.html">Google Cast</a></li>
      <li><a href="{@docRoot}google/play-services/games.html">Games achievements and
      leaderboards</a></li>
      <li><a href="{@docRoot}google/play-services/index.html">And much more</a></li>
    </ul>
  </div>

  <p>To develop with Google APIs, you need the Google Play services package:</p>
  <ol>
    <li>Open the <strong>Extras</strong> directory and select:
     <ul>
       <li><strong>Google Repository</strong></li>
       <li><strong>Google Play services</strong></li>
     </ul>
    </li>
    <li>Click <strong>Install</strong>.</li>
  </ol>

  <p class="note"><strong>Note:</strong> Google Play services APIs are not available on all
  Android-powered devices, but are available on all devices with Google Play Store. To use these
  APIs in the Android emulator, you must also install the the <strong>Google APIs</strong>
  system image from the latest Android X.X directory in the SDK Manager.</p>
</li>



<li>
  <h2 id="Build" class="norule">Build something!</h2>

<p>With the above packages now in your Android SDK, you're ready to build apps
for Android. As new tools and other APIs become available, simply launch the SDK Manager
  to download the new packages for your SDK.</p>

<p>Here are a few options for how you should proceed:</p>

<div class="cols" style="padding:10px 0">
<div class="col-4">
<h3>Get started</h3>
<p>If you're new to Android development, learn the basics of Android apps by following
the guide to <strong><a href="{@docRoot}training/basics/firstapp/index.html"
>Building Your First App</a></strong>.</p>

</div>
<div class="col-4 box">
<h3>Build for wearables</h3>
<p>If you're ready to start building apps for Android wearables, see the guide to
<strong><a href="{@docRoot}wear/preview/start.html">Building Apps for Android Wear</a></strong>.</p>

</div>
<div class="col-4 box">
<h3>Use Google APIs</h3>
<p>To start using Google APIs, such as Maps or
Play Game services, see the guide to
<strong><a href="{@docRoot}google/play-services/setup.html">Setting Up Google Play
Services</a></strong>.</p>

</div>
</div><!-- end cols -->


</li>

</ol>