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| page.metaDescription=The official site for the Android Open Source Project. |
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| <!-- |
| Copyright 2016 The Android Open Source Project |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
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| http://www.apache.org/licenses/LICENSE-2.0 |
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| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| --> |
| <div class="wrap"> |
| |
| <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> |
| |
| <h2 align="center">Android 7.0 Updates Available</h2> |
| </div> |
| |
| </div> |
| |
| <div class="wrap"> |
| |
| <div class="landing-docs"> |
| <div class="col-10"> |
| <h3>What's New</h3> |
| |
| <h4>Key Features</h4> |
| <p> |
| <a href="{@docRoot}devices/tech/dalvik/jit-compiler.html"><strong>Just-in-time |
| (JIT) compiler</strong></a> with code profiling to Android runtime (ART) |
| continually improves app performance. |
| <a href="{@docRoot}security/encryption/file-based.html"><strong>Direct boot and |
| file-based encryption</strong></a> allows certain apps to run securely when |
| the device is powered on but not unlocked. |
| <a href="{@docRoot}devices/tech/display/multi-window.html"><strong>Multi-window</strong></a> |
| support enables simultaneous display of multiple apps on a device screen. |
| The <a href="{@docRoot}devices/automotive.html"><strong>Vehicle |
| HAL</strong></a> enables Android Automotive implementations.</p> |
| |
| <h4>Security Improvements</h4> |
| <p> |
| Android now strictly enforces |
| <a href="{@docRoot}security/verifiedboot/verified-boot.html"><strong>verified |
| boot</strong></a> and requires a |
| <a href="{@docRoot}security/overview/app-security.html#certificate-authorities"><strong>same-system |
| trusted CA store</strong></a>. |
| <a href="{@docRoot}security/apksigning/index.html#v2"><strong>APK signature |
| scheme v2</strong></a> performs signature checking across the entire file. |
| Security hardening of <a href="{@docRoot}devices/media/framework-hardening.html"><strong>media |
| framework</strong></a> and |
| <a href="{@docRoot}devices/camera/versioning.html#hardening">camera service</strong></a> |
| splits mediaserver into multiple processes with restricted permissions and |
| capabilities (may require changes to HAL implementations). |
| For more changes, see |
| <a href="{@docRoot}security/enhancements/enhancements70.html"><strong>7.0 |
| security enhancements</strong></a>.</p> |
| |
| <h4>Audio, Camera, & Graphics Updates</h4> |
| <p> |
| <a href="{@docRoot}devices/audio/implement-policy.html"><strong>Audio policy |
| improvements</strong></a> include changes to policy configuration files, a |
| reorganization of audio policy code, and new extensions for audio policy routing |
| APIs. |
| Android now supports |
| <a href="{@docRoot}devices/graphics/arch-vulkan.html"><strong>Vulkan</strong></a> |
| (low-overhead, cross-platform API for high-performance 3D graphics) and |
| <a href="{@docRoot}devices/graphics/testing.html"><strong>OpenGL |
| 3.2</strong></a>; check with your SoC for driver support. |
| Enhancements to |
| <a href="{@docRoot}devices/camera/versioning.html"><strong>camera3</strong></a> |
| support devices with high-end cameras.</p> |
| |
| <h4>OEM Customizations</h4> |
| <p>Users can now |
| <a href="{@docRoot}devices/tech/connect/block-numbers.html"><strong>restrict |
| calls and texts</strong></a> (impacts apps using blocking features). |
| Do-not-disturb (DND) rules can now |
| <a href="{@docRoot}devices/tech/display/dnd.html"><strong>suppress visual |
| interruptions</strong></a>.</p> |
| |
| <h4>Android For Work Updates</h4> |
| <p>New device administration features include |
| <a href="{@docRoot}devices/tech/admin/enterprise-telephony.html"><strong>enterprise |
| telephony</strong></a> (cross-profile contact searching and badging, affects |
| preloaded Dialer and Contacts apps), |
| <a href="{@docRoot}devices/tech/admin/implement.html#HAL_values"><strong>device |
| monitoring and health reporting</strong></a> (APIs for apps to query device |
| hardware state; device must report correct values in the HAL implementation), |
| and |
| <a href="{@docRoot}devices/tech/admin/testing-setup.html#troubleshooting"><strong>enterprise |
| process logging and device owner triggered bugreports</strong></a> (collect logs |
| for user actions on a managed device).</p> |
| |
| <h4>Power Improvements</h4> |
| <p> |
| <a href="{@docRoot}devices/tech/power/mgmt.html#doze"><strong>Doze</strong></a> |
| now works on devices in motion. |
| <a href="{@docRoot}devices/tech/power/mgmt.html#sustained_performance"><strong>Sustained |
| performance</strong></a> hints can inform long-running applications of |
| device-performance capabilities (requires power HAL changes). |
| <a href="{@docRoot}devices/tech/connect/data-saver.html"><strong>Data |
| Saver</strong></a> enables restricting background data when on cellular or |
| metered networks. |
| Android now collects data for |
| <a href="{@docRoot}devices/tech/power/values.html#le-bt-scans"><strong>Low |
| Energy (LE) scans and Bluetooth</strong></a> traffic.</p> |
| |
| <h4>Under the Hood</h4> |
| <p>Dialer APIs handle all |
| <a href="{@docRoot}devices/tech/connect/call-notification.html"><strong>call |
| notification</strong></a> logic (instead of sharing with Telecom). |
| <a href="{@docRoot}devices/tech/config/namespaces_libraries.html"><strong>Namespaces |
| for native libraries</strong></a> prevent apps from using private platform |
| native APIs. |
| <a href="{@docRoot}source/running.html#flashing-a-device"><strong>Flash |
| unlock</strong></a> reports the bootloader's lock status. |
| <a href="{@docRoot}devices/tech/connect/ril.html"><strong>Radio |
| Interface Layer (RIL)</strong></a> support includes enhancements to error codes, |
| versioning, and wakelocks. |
| <a href="{@docRoot}devices/tech/config/uicc.html"><strong>UICC carrier |
| privilege</strong></a> rules now support Access File Rule (ARF) storage. |
| Android now supports the RFID smart card system |
| <a href="{@docRoot}devices/tech/connect/felica.html"><strong>Felicity Card |
| (FeliCa)</strong></a>. |
| Documentation updated for |
| <a href="{@docRoot}devices/halref/index.html"><strong>HAL</strong></a> |
| and <a href="{@docRoot}reference/packages.html"><strong>TradeFed</strong></a> |
| references.</p> |
| |
| <!--SAVED for FUTURE REFERENCE |
| <a href="{@docRoot}source/build-numbers.html"> |
| <h4>Lollipop and Marshmallow Build Numbers</h4></a> |
| <p>New <strong><a |
| href="{@docRoot}source/build-numbers.html#source-code-tags-and-builds">Build |
| Numbers</a></strong> have been published for Lollipop on Nexus 10 and |
| Marshmallow on Nexus 5, Nexus 5X, Nexus 6, Nexus 6P, Nexus 7 (flo/deb), Nexus 9 |
| (volantis/volantisg), Nexus Player, and Pixel C.</p> |
| |
| <a href="{@docRoot}compatibility/downloads.html"> |
| <h4>Android 6.0, 5.1, and 5.0 CTS Downloads</h4></a> |
| <p>Android 6.0 R3, 5.1 R5, and 5.0 R4 Compatibility Test Suite (CTS) |
| and CTS Verifier are available for <strong><a |
| href="{@docRoot}compatibility/downloads.html">Download</a></strong>.</p> |
| --> |
| </div> |
| |
| <div class="col-5"> |
| |
| <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>Get help porting the latest Android platform to create compelling devices for |
| your customers. Includes documentation for HAL interfaces and details on core |
| technologies such as Android runtime (ART) and over-the-air (OTA) updates.</p> |
| |
| <a href="{@docRoot}security/index.html"><h4>Make Secure</h4></a> |
| <p>Follow these examples and instructions to harden your Android devices against |
| malicious attacks. Find out how the Android security program works and learn how |
| to implement the latest features.</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>Site Feedback</strong> button at the bottom of any page to |
| request content improvements or let us know about errors. To contribute your |
| own updates to the site or to view a complete list of site changes, use the AOSP |
| project |
| <strong><a href="https://android.googlesource.com/platform/docs/source.android.com/+log/master">docs/source.android.com.</a></strong></p> |
| </div> |
| |
| </div> |
| |
| </div> |