src/index.jd

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  <div class="landing-banner">
      <h1 itemprop="name" style="margin-bottom:0;">Welcome to the Android Open Source Project!</h1>

<p>
Android is an open source software stack for a wide range of mobile devices and
a corresponding open source project led by Google. This site offers the
information and source code you need to create custom variants of the Android
stack, port devices and accessories to the Android platform, and ensure your
devices meet compatibility requirements.
</p>

  </div>

</div>

<div class="wrap">

  <div class="landing-docs">
    <div class="col-8">
    <h3>What's New</h3>
<a href="{@docRoot}source/build-numbers.html">
        <h4>Android 6.0 and 5.1 Build Numbers and CTS Packages</h4></a>
        <p>You can now find <strong><a
        href="{@docRoot}source/build-numbers.html#source-code-tags-and-builds">Build
        Numbers</a></strong> and CTS packages for <strong><a
        href="{@docRoot}compatibility/downloads.html#android-60">Android
        6.0</a></strong> and <strong><a
        href="{@docRoot}compatibility/downloads.html#android-51">Android
        5.1</a></strong>.</p>

<a href="{@docRoot}devices/halref/index.html">
        <h4>HAL and Trad Fed Reference Files</h4></a>
        <p>Both the <strong><a
        href="{@docRoot}devices/halref/index.html">Hardware Abstraction Layer
        (HAL)</a></strong> and <strong><a
        href="{@docRoot}reference/packages.html">Trade Federation Testing
        Suite</a></strong> reference files have been updated for Android 6.0.</p>

<a href="{@docRoot}devices/tech/power/index.html">
        <h4>Doze and App Standby</h4></a>
        <p>New battery-saving features <em>Doze</em> and <em>App Standby</em>
        are described in <strong><a href="{@docRoot}devices/tech/power/mgmt.html">Power
        Management</a></strong> while the remaining <strong><a
        href="{@docRoot}devices/tech/power/index.html">Power</a></strong> section has
        been revised.</p>

<a href="{@docRoot}devices/tech/security/authentication/index.html">
        <h4>Authentication</h4></a>
        <p>An entirely new <strong><a
        href="{@docRoot}devices/tech/security/authentication/index.html">Authentication</a></strong>
        section describes the <strong><a
        href="{@docRoot}devices/tech/security/authentication/fingerprint-hal.html">Fingerprint</a></strong>,
        <strong><a
        href="{@docRoot}devices/tech/security/authentication/gatekeeper.html">Gatekeeper</a></strong>,
        and <strong><a
        href="{@docRoot}devices/tech/security/authentication/keymaster.html">Keymaster</a></strong>
        interfaces in detail, including a list of <strong><a
        href="{@docRoot}devices/tech/security/authentication/km-features.html">Keymaster
        features</a></strong> and an <strong><a
        href="{@docRoot}devices/tech/security/authentication/km-implementer-ref.html">implementer's
        reference</a></strong>.</p>

<a href="{@docRoot}devices/storage/index.html">
        <h4>Adoptable Storage</h4></a>
        <p>The <strong><a
        href="{@docRoot}devices/storage/index.html">Storage</a></strong>
        section has been revised to introduce <strong><a
        href="{@docRoot}devices/storage/adoptable.html">adoptable
        storage</a></strong> that can hold app data and distinguish between it and <strong><a
        href="{@docRoot}devices/storage/traditional.html">traditional
        storage</a></strong>.</p>

<a href="{@docRoot}devices/tech/config/index.html">
        <h4>Configuration</h4></a>
        <p>Instructions now exist for configuring <strong><a
        href="{@docRoot}devices/tech/config/runtime_perms.html">runtime permissions</a></strong>,
        <strong><a href="{@docRoot}devices/tech/config/voicemail.html">visual
        voicemail</a></strong>, and Android's new <strong><a
        href="{@docRoot}devices/tech/config/filesystem.html">file
        system</a></strong>. And carriers get <strong><a
        href="{@docRoot}devices/tech/config/carrier.html">custom
        configuration</a></strong>.</p>

<a href="{@docRoot}devices/tech/debug/index.html">
        <h4>Tooling</h4></a>
        <p>Information on the <strong><a href="{@docRoot}source/jack.html">Jack
        (Java Android Compiler Kit)</a></strong> default toolchain in Android 6.0 is
        available, as well as instructions for <strong><a
        href="{@docRoot}devices/tech/dalvik/gc-debug.html">debugging garbage collection
        in ART</a></strong>.</p>
    </div>

    <div class="col-8">
      <h3>Getting Started</h3>
      <a href="{@docRoot}source/index.html">
        <h4>Explore the Source</h4></a>
        <p>Get the complete Android platform and modify and build it to suit your needs. You can
        also <strong><a
        href="https://android-review.googlesource.com/#/q/status:open">contribute
        to</a></strong> the <strong><a
        href="https://android.googlesource.com/">Android Open Source Project (AOSP)
        repository</a></strong> to make your changes available to everyone else
        in the Android ecosystem.</p>
<a href="{@docRoot}source/index.html"><img border="0" src="images/android_framework_small.png" alt="Android framework summary" style="display:inline;float:right;margin:5px 10px;width:42%;height:42%"></a>
      <a href="{@docRoot}devices/index.html">
        <h4>Port Android to Devices</h4></a>
        <p>Port the latest Android platform and
        create compelling devices that your customers want.</p>

      <a href="{@docRoot}accessories/index.html">
        <h4>Build Accessories</h4></a>
        <p>Sometimes, a device can't do it all. Tap into Android's open accessory standard and build accessories to complement the wide variety of Android-powered devices.</p>

      <a href="{@docRoot}compatibility/index.html">
        <h4>Get Compatible</h4></a>
        <p>Being Android-compatible lets you offer custom features but still give users and developers a consistent
          and standard experience across all Android-powered devices. Android provides guidance
          and a test suite to verify your Android compatibility.</p>

      <a href="https://android.googlesource.com/platform/docs/source.android.com/">
        <h4>Help this Site</h4></a>
        <p>Use the <strong>Send Feedback</strong> button at the bottom of any
        page to request improvements to the content or identify errors. In addition,
        source.android.com is maintained in the Android Open Source Project. See the
        <strong><a
        href="https://android.googlesource.com/platform/docs/source.android.com/+log/master">docs/source.android.com
        project log in AOSP</a></strong> for the complete list of changes to this site.
        Contribute your own updates to that same project and help maintain source.android.com.</p>
    </div>

  </div>

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