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Robert Ly35f2fda2013-01-29 16:27:05 -08001fullpage=true
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4page.metaDescription=The official site for the Android Open Source Project.
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Clay Murphyb808be72015-01-05 16:13:15 -08009 Copyright 2015 The Android Open Source Project
Robert Ly35f2fda2013-01-29 16:27:05 -080010
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12 you may not use this file except in compliance with the License.
13 You may obtain a copy of the License at
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23<div class="wrap">
24
25 <div class="landing-banner">
26 <h1 itemprop="name" style="margin-bottom:0;">Welcome to the Android Open Source Project!</h1>
Robert Ly5b218c22013-05-07 10:37:22 -070027
Robert Ly35f2fda2013-01-29 16:27:05 -080028 <p>
Clay Murphyf965cd72013-05-30 14:43:56 -070029 Android is an open-source software stack for a wide range of mobile devices and a corresponding open-source project led by
30 Google. Here you can find the information and source code you need to learn more about the Android platform. From there you can
Clay Murphy3fe59ee2013-07-09 10:31:04 -070031 create custom variants of the Android software stack, port devices and accessories to the Android platform,
Clay Murphyf965cd72013-05-30 14:43:56 -070032 and ensure your devices are compatible with the Android compatibility definition.
Robert Ly35f2fda2013-01-29 16:27:05 -080033 </p>
34
35 </div>
36
37</div>
38
Robert Ly35f2fda2013-01-29 16:27:05 -080039<div class="wrap">
40
41 <div class="landing-docs">
42 <div class="col-8">
Clay Murphya336f062014-05-08 13:33:23 -070043 <h3>What's New</h3>
Clay Murphycdab9c52015-01-12 14:18:54 -080044<a href="{@docRoot}compatibility/index.html">
45 <h4>Android 5.0 CDD released</h4></a>
46 <p>The <strong><a
47 href="{@docRoot}compatibility/android-cdd.pdf">5.0 version of the Android
48 Compatibility Definition Document (CDD)</a></strong> has been published.</p>
49
50<a href="{@docRoot}source/building-kernels.html">
51 <h4>Nexus 5 kernel instructions fixed</h4></a>
52 <p>The <strong><a
53 href="{@docRoot}source/building-kernels.html#id-version">Identifying
54 kernel version</a></strong> instructions for Nexus 5 (hammerhead) have
55 been updated to repair an errror.</p>
Clay Murphya336f062014-05-08 13:33:23 -070056
Clay Murphyb808be72015-01-05 16:13:15 -080057<a href="{@docRoot}devices/audio/index.html">
58 <h4>Audio terminology, latency, and USB documentation improved</h4></a>
59 <p><strong><a
60 href="{@docRoot}devices/audio/latency.html">Audio Latency</a></strong>
61 now describes rate-monotonic scheduling, security kernels, and power,
62 performance and thermal management. <strong><a
63 href="{@docRoot}devices/audio/usb.html">USB Digital Audio
64 </a></strong> covers debugging in host mode, and <strong><a
65 href="{@docRoot}devices/audio/terminology.html">Audio Terminology
66 </a></strong> defines FastCapture, jitter, overrun, panning, and more.</p>
67
Clay Murphy22a26042014-12-11 15:57:30 -080068<a href="{@docRoot}source/building.html">
69 <h4>Disk size requirements increased</h4></a>
70 <p>The amount of free disk space listed as required on <strong><a
Clay Murphycdab9c52015-01-12 14:18:54 -080071 href="{@docRoot}source/building.html">Downloading and
Clay Murphy22a26042014-12-11 15:57:30 -080072 Building</a></strong> has been increased significantly.</p>
73
Bill Yia8270e82014-12-10 11:57:59 -080074<a href="{@docRoot}source/build-numbers.html">
75 <h4>Supported devices and version strings updated</h4></a>
76 <p>The list of <strong><a
77 href="{@docRoot}source/build-numbers.html#source-code-tags-and-builds">supported
78 devices, branch tags</a></strong> and <strong><a
79 href="{@docRoot}compatibility/5.0/versions.html">version
80 strings</a></strong> for Android 5.0 have been updated.</p>
Robert Ly35f2fda2013-01-29 16:27:05 -080081 </div>
82
83 <div class="col-8">
84 <h3>Getting Started</h3>
85 <a href="{@docRoot}source/index.html">
Clay Murphy78beecd2013-11-05 16:27:26 -080086 <h4>Explore the Source</h4></a>
Robert Ly35f2fda2013-01-29 16:27:05 -080087 <p>Get the complete Android platform and modify and build it to suit your needs. You can
Clay Murphy5a7dc7e2014-09-30 14:55:13 -070088 also <strong><a
89 href="https://android-review.googlesource.com/#/q/status:open">contribute
90 to</a></strong> the <strong><a
91 href="https://android.googlesource.com/">Android Open Source Project
92 repository</a></strong> to make your changes available to everyone else
93 in the Android ecosystem.</p>
Clay Murphy4aa22e82014-12-16 11:21:22 -080094<a href="{@docRoot}source/index.html"><img border="0" src="images/android_framework_small.png" alt="Android framework summary" style="display:inline;float:left;margin:5px 10px"></a>
Robert Ly35f2fda2013-01-29 16:27:05 -080095 <a href="{@docRoot}devices/index.html">
Clay Murphy78beecd2013-11-05 16:27:26 -080096 <h4>Port Android to Devices</h4></a>
Clay Murphy3fe59ee2013-07-09 10:31:04 -070097 <p>Port the latest Android platform and
Robert Ly5b218c22013-05-07 10:37:22 -070098 create compelling devices that your customers want.</p>
Robert Ly35f2fda2013-01-29 16:27:05 -080099
100 <a href="{@docRoot}accessories/index.html">
Clay Murphy78beecd2013-11-05 16:27:26 -0800101 <h4>Build Accessories</h4></a>
Robert Ly5b218c22013-05-07 10:37:22 -0700102 <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>
Robert Ly35f2fda2013-01-29 16:27:05 -0800103
104 <a href="{@docRoot}compatibility/index.html">
Clay Murphy78beecd2013-11-05 16:27:26 -0800105 <h4>Get Compatible</h4></a>
Robert Ly35f2fda2013-01-29 16:27:05 -0800106 <p>Being Android-compatible lets you offer custom features but still give users and developers a consistent
107 and standard experience across all Android-powered devices. Android provides guidance
108 and a test suite to verify your Android compatibility.</p>
Robert Ly35f2fda2013-01-29 16:27:05 -0800109 </div>
110
111 </div>
112
Clay Murphyf965cd72013-05-30 14:43:56 -0700113</div>