299 lines
8.7 KiB
Plaintext
299 lines
8.7 KiB
Plaintext
page.title=Android 2.2 Platform Highlights
|
|
|
|
@jd:body
|
|
|
|
|
|
<style type="text/css">
|
|
#jd-content {
|
|
max-width:800px;
|
|
}
|
|
#jd-content div.screenshot {
|
|
float:left;
|
|
clear:left;
|
|
padding:15px 30px 15px 0;
|
|
}
|
|
#jd-content div.video {
|
|
float:right;
|
|
padding:0 60px 40px;
|
|
margin-top:-15px;
|
|
}
|
|
#jd-content table.columns {
|
|
margin:0 0 1em 0;
|
|
}
|
|
#jd-content table.columns td {
|
|
padding:0;
|
|
}
|
|
#jd-content table.columns td+td {
|
|
padding:0 2em;
|
|
}
|
|
#jd-content table.columns td img {
|
|
margin:0;
|
|
}
|
|
#jd-content table.columns td+td>*:first-child {
|
|
margin-top:-2em;
|
|
}
|
|
.green {
|
|
color:#8db529;
|
|
font-weight:bold;
|
|
}
|
|
</style>
|
|
|
|
|
|
<div class="video">
|
|
<object width="278 height="180">
|
|
<param name="movie" value="http://www.youtube.com/v/yAZYSVr2Bhc&hl=en&fs=1&"></param>
|
|
<param name="allowFullScreen" value="true"></param><param name="allowscriptaccess"
|
|
value="always"></param>
|
|
<embed src="http://www.youtube.com/v/yAZYSVr2Bhc&hl=en&fs=1&" type="application/x-shockwave-flash"
|
|
allowscriptaccess="always" allowfullscreen="true" width="278" height="180"></embed>
|
|
</object>
|
|
</div>
|
|
|
|
|
|
<p>The Android 2.2 platform introduces many new and exciting features for
|
|
users and developers. This document provides a glimpse at some of the new user features
|
|
and technologies in Android 2.2. For more information about the new developer APIs, see the <a
|
|
href="android-2.2.html#api">Android 2.2 version notes</a>.</p>
|
|
|
|
<ul>
|
|
<li><a href="#UserFeatures">New User Features</a></li>
|
|
<li><a href="#PlatformTechnologies">New Platform Technologies</a></li>
|
|
<li><a href="#DeveloperServices">New Developer Services</a></li>
|
|
<li><a href="#DeveloperApis">New Developer APIs</a></li>
|
|
</ul>
|
|
|
|
|
|
|
|
<h2 id="UserFeatures" style="clear:right">New User Features</h2>
|
|
|
|
<h3>Home</h3>
|
|
|
|
<table class="columns" style="max-width:800px">
|
|
<tr>
|
|
<td>
|
|
<img src="images/2.2/22home.png" alt="" height=230 />
|
|
</td>
|
|
<td>
|
|
<p style="margin-top:0">New Home screen <span class="green">tips widget</span> assists new users on
|
|
how to configure the
|
|
home screen with shortcuts and widgets and how to make use of multiple home screens.</p>
|
|
<p>The Phone, applications Launcher, and Browser now have <span class="green">dedicated
|
|
shortcuts</span> on the Home screen, making it easy to access them from any of the 5 home screen
|
|
panels.</p>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
|
|
|
|
<h3>Exchange support</h3>
|
|
|
|
<table class="columns" style="max-width:800px">
|
|
<tr>
|
|
<td>
|
|
<p><span class="green">Improved security</span> with the addition of numeric pin or alpha-numeric
|
|
password options to unlock device. Exchange administrators can enforce password policy across
|
|
devices.</p>
|
|
<p><span class="green">Remote wipe:</span> Exchange administrators can remotely reset the device to
|
|
factory defaults to secure data in case device is lost or stolen.</p>
|
|
<p><span class="green">Exchange Calendars are now supported</span> in the Calendar application.</p>
|
|
<p><span class="green">Auto-discovery:</span> you just need to know your user-name and password to
|
|
easily set up and sync an Exchange account (available for Exchange 2007 and higher).</p>
|
|
<p><span class="green">Global Address Lists look-up</span> is now available in the Email
|
|
application, enabling users to auto-complete recipient names from the directory.</p>
|
|
</td>
|
|
<td>
|
|
<img src="images/2.2/22exchange.png" alt="" height=300 />
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
|
|
<h3>Camera and Gallery</h3>
|
|
|
|
<table class="columns" style="max-width:800px">
|
|
<tr>
|
|
<td>
|
|
<img src="images/2.2/22gallery.png" alt="" height=220 />
|
|
</td>
|
|
<td>
|
|
<p>Gallery allows you to <span class="green">peek into picture stacks</span> using a zoom
|
|
gesture.</p>
|
|
<p>Camera <span class="green">onscreen buttons</span> provide easy access to a new UI for
|
|
controling zoom, flash, white balance, geo-tagging, focus and exposure. Camcorder also provides
|
|
an easy way to set video size/quality for MMS and YouTube.</p>
|
|
<p>With the <span class="green">LED flash</span> now enabled for the Camcorder, videos can be shot
|
|
at night or in low light settings.</p>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
|
|
<h3>Portable hotspot</h3>
|
|
|
|
<table class="columns" style="max-width:800px">
|
|
<tr>
|
|
<td>
|
|
<p>Certain devices like the Nexus One can be turned into <span class="green">a portable Wi-Fi
|
|
hotspot</span> that can be shared with up to 8 devices.</p>
|
|
<p>You can use your Android-powered phone as a 3G connection for a Windows or Linux laptop by
|
|
connecting their phone to the computer with a USB cable. The connection is then shared between the
|
|
two devices.</p>
|
|
</td>
|
|
<td>
|
|
<img src="images/2.2/22hotspot.png" alt="" height=180 />
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
|
|
<h3>Multiple keyboard languages</h3>
|
|
|
|
<table class="columns" style="max-width:800px">
|
|
<tr>
|
|
<td>
|
|
<img src="images/2.2/22keyboard.png" alt="" height=220 />
|
|
</td>
|
|
<td>
|
|
<p>Multi-lingual users can add multiple languages to the keyboard and <span class="green">switch
|
|
between multiple Latin-based input languages</span> by swiping across the space bar. This changes
|
|
the keys as well as the auto-suggest dictionary.</p>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
|
|
<h3>Improved performance</h3>
|
|
|
|
<table class="columns" style="max-width:800px">
|
|
<tr>
|
|
<td>
|
|
<p><span class="green">Performance of the browser</span> has been enhanced using the V8 engine,
|
|
which enables faster loading of JavaScript-heavy pages.</p>
|
|
<p><span class="green">Dalvik Performance Boost:</span> 2x-5x performance speedup for CPU-heavy code
|
|
over Android 2.1 with Dalvik JIT.</p>
|
|
<p>The graph to the right shows the performance <span class="green">speedup</span> from Android 2.1
|
|
to Android 2.2 using various benchmark tests. For example, LinPack is now more than 5 times
|
|
faster.</p>
|
|
<p><span class="green">Kernel Memory Management Boost:</span> Improved memory reclaim by up to 20x,
|
|
which results in faster app switching and smoother performance on memory-constrained devices.</p>
|
|
</td>
|
|
<td>
|
|
<img src="images/2.2/jit-graph.png" alt="" height=200 />
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
|
|
|
|
|
|
|
|
<h2 id="PlatformTechnologies">New Platform Technologies</h2>
|
|
|
|
|
|
<h3>Media framework</h3>
|
|
|
|
<ul>
|
|
<li>New media framework (Stagefright) that supports local file playback and HTTP progressive
|
|
streaming</li>
|
|
<li>Continued support for OpenCore in Android 2.2</li>
|
|
</ul>
|
|
|
|
|
|
<h3>Bluetooth</h3>
|
|
|
|
<ul>
|
|
<li>Voice dialing over Bluetooth</li>
|
|
<li>Ability to share contacts with other phones</li>
|
|
<li>Support for Bluetooth enabled car and desk docks</li>
|
|
<li>Improved compatibility matrix with car kits and headsets</li>
|
|
</ul>
|
|
|
|
|
|
<h3>2.6.32 kernel upgrade</h3>
|
|
|
|
<ul>
|
|
<li>HIGHMEM support for RAM >256MB</li>
|
|
<li>SDIO scheduling and BT improvements</li>
|
|
</ul>
|
|
|
|
|
|
|
|
|
|
<h2 id="DeveloperServices">New Developer Services</h2>
|
|
|
|
|
|
<h3>Android Cloud to Device Messaging</h3>
|
|
|
|
<p>Apps can utilize Android Cloud to Device Messaging to enable mobile alert, send to phone, and
|
|
two-way push sync functionality.</p>
|
|
|
|
|
|
<h3>Android Application Error Reports</h3>
|
|
|
|
<p>New bug reporting feature for Android Market apps enables developers to receive crash and freeze
|
|
reports from their users. The reports will be available when they log into their publisher
|
|
account.</p>
|
|
|
|
|
|
|
|
|
|
<h2 id="DeveloperApis">New Developer APIs</h2>
|
|
|
|
|
|
<h3>Apps on external storage</h3>
|
|
|
|
<p>Applications can now request installation on the shared external storage (such as an SD
|
|
card).</p>
|
|
|
|
|
|
<h3>Media framework</h3>
|
|
|
|
<p>Provides new APIs for audio focus, routing audio to SCO, and auto-scan of files to media
|
|
database. Also provides APIs to let applications detect completion of sound loading and auto-pause
|
|
and auto-resume audio playback.</p>
|
|
|
|
|
|
<h3>Camera and Camcorder</h3>
|
|
|
|
<p>New preview API doubles the frame rate from ~10FPS to ~20FPS. Camera now supports portrait
|
|
orientation, zoom controls, access to exposure data, and a thumbnail utility. A new camcorder
|
|
profile enables apps to determine device hardware capablities.</p>
|
|
|
|
|
|
<h3>Graphics</h3>
|
|
|
|
<p>New APIs for OpenGL ES 2.0, working with YUV image format, and ETC1 for texture
|
|
compression.</p>
|
|
|
|
|
|
<h3>Data backup</h3>
|
|
|
|
<p>Apps can participate in data backup and restore, to ensure that users maintain their data
|
|
after performing a factory reset or when switching devices.</p>
|
|
|
|
|
|
<h3>Device policy manager</h3>
|
|
|
|
<p>New device policy management APIs allow developers to write "device administrator" applications
|
|
that can control security features on the device, such as the minimum password strength, data wipe,
|
|
and so on. Users can select the administrators that are enabled on their devices.</p>
|
|
|
|
|
|
<h3>UI framework</h3>
|
|
|
|
<p>New "car mode" and "night mode" controls and configurations allow applications to adjust their UI
|
|
for these situations. A scale gesture detector API provides improved definition of multi-touch
|
|
events. Applications can now customize the bottom strip of a TabWidget.</p>
|
|
|
|
|
|
|
|
<p>For more information about the new developer APIs, see the <a
|
|
href="android-2.2.html#api">Android 2.2 version notes</a> and the <a
|
|
href="{@docRoot}sdk/api_diff/8/changes.html">API Differences Report</a>.</p>
|
|
|
|
|
|
|
|
|
|
|