Doc change: Add revision notes for Android 2.2_r2 development platform. Fix...

 *

 * <h3>Building web pages to support different screen densities</h3>

 *

 * <p>The screen density of a device is based on the screen resolution. A screen with low density

 * has fewer available pixels per inch, where a screen with high density

 * <p>A screen's density is based on it's screen resolution and physical size. A screen with low

 * density has fewer available pixels per inch, where a screen with high density

 * has more -- sometimes significantly more -- pixels per inch. The density of a

 * screen is important because, other things being equal, a UI element (such as a button) whose

 * height and width are defined in terms of screen pixels will appear larger on the lower density

 * screen and smaller on the higher density screen.

 * For simplicity, Android collapses all actual screen densities into three generalized densities:

 * high, medium, and low.</p>

 * screen and smaller on the higher density screen. For simplicity, Android collapses all

 * actual screen densities into three generalized densities:high, medium, and low. </p>

 *

 * <p>By default, WebView scales a web page so that it is drawn at a size that matches the default

 * appearance on a medium density screen. So, it applies 1.5x scaling on a high density screen

 * (because its pixels are smaller) and 0.75x scaling on a low density screen (because its pixels

sdk.platform.version=2.2

sdk.platform.apiLevel=8

sdk.platform.majorMinor=minor

sdk.platform.deployableDate=May 2010

@jd:body

</style>

<div class="toggleable opened">

  <a href="#" onclick="return toggleDiv(this)">

        <img src="{@docRoot}assets/images/triangle-opened.png" class="toggle-img" height="9px" width="9px" />

        Android {@sdkPlatformVersion}, Revision 2</a> <em>(July 2010)</em></a>

  <div class="toggleme">

<dl>

<dt>Dependencies:</dt>

<dd>

<p>Requires SDK Tools r6 or higher.</p>

</dd>

<dt>System Image:</dt>

<dd>

<ul>

<li>Adds default Search Widget.</li>

<li>Includes proper provisioning for the platform's Backup Manager. For more information about how to use the Backup Manager, see <a href="{@docRoot}guide/topics/data/backup.html">Data Backup</a>.</li>

<li>Updates the Android 2.2 system image to FRF91.</li>

</ul>

</dd>

</dl>

 </div>

</div>

<div class="toggleable closed">

  <a href="#" onclick="return toggleDiv(this)">

        <img src="{@docRoot}assets/images/triangle-opened.png" class="toggle-img" height="9px" width="9px" />

        Android {@sdkPlatformVersion}, Revision 1</a> <em>(May 2010)</em></a>

 </div>

</div>

<h2 id="api-level">API Level</h2>

<p>The Android {@sdkPlatformVersion} platform delivers an updated version of