M7350/base/docs/html/guide/topics/manifest/uses-permission-element.jd
2024-09-09 08:52:07 +00:00

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page.title=<uses-permission>
@jd:body
<dl class="xml">
<div class="sidebox-wrapper">
<img id="rule" src="{@docRoot}assets/images/grad-rule-qv.png">
<div id="qv-sub-rule">
<img src="{@docRoot}assets/images/icon_market.jpg" style="float:left;margin:0;padding:0;">
<p style="color:#669999;"><code style="color:#669999;">&lt;uses-permission&gt;</code> and filtering on Android Market. </p>
<p style="margin-top:1em;">In some cases, the permissions that you request
through <code>&lt;uses-permission&gt;</code> can affect how
your application is filtered by Android Market.</p>
<p style="margin-top:1em;">If you request a hardware-related permission &mdash;
<code>CAMERA</code>, for example &mdash; Android Market assumes that your
application requires the underlying hardware feature and filters the application
from devices that do not offer it.</p>
<p style="margin-top:1em;">To control filtering, always explicitly declare
hardware features in <code>&lt;uses-feature&gt;</code> elements, rather than
relying on Android Market to "discover" the requirements in
<code>&lt;uses-permission&gt;</code> elements. Then, if you want to disable
filtering for a particular feature, you can add a
<code>android:required="false"</code> attribute to the
<code>&lt;uses-feature&gt;</code> declaration.</p>
<p style="margin-top:1em;" class="caution">For a list of permissions that imply
hardware features, see the documentation for the <a
href="{@docRoot}guide/topics/manifest/uses-feature-element.html#permissions-features">
<code>&lt;uses-feature&gt;</code></a> element.</p>
</div>
</div>
<dt>syntax:</dt>
<dd><pre class="stx">&lt;uses-permission android:<a href="#nm">name</a>="<i>string</i>" /&gt;</pre></dd>
<dt>contained in:</dt>
<dd><code><a href="{@docRoot}guide/topics/manifest/manifest-element.html">&lt;manifest&gt;</a></code></dd>
<dt>description:</dt>
<dd>Requests a permission that the application must be granted in
order for it to operate correctly. Permissions are granted by the user when the
application is installed, not while it's running.
<p>
For more information on permissions, see the
<a href="{@docRoot}guide/topics/manifest/manifest-intro.html#perms">Permissions</a></code>
section in the introduction and the separate
<a href="{@docRoot}guide/topics/security/security.html">Security and Permissions</a> document.
A list of permissions defined by the base platform can be found at
{@link android.Manifest.permission android.Manifest.permission}.
<dt>attributes:</dt>
<dd><dl class="attr">
<dt><a name="nm"></a>{@code android:name}</dt>
<dd>The name of the permission. It can be a permission defined by the
application with the <code><a href="{@docRoot}guide/topics/manifest/permission-element.html">&lt;permission&gt;</a></code>
element, a permission defined by another application, or one of the
standard system permissions, such as "{@code android.permission.CAMERA}"
or "{@code android.permission.READ_CONTACTS}". As these examples show,
a permission name typically includes the package name as a prefix.</dd>
</dl></dd>
<!-- ##api level indication## -->
<dt>introduced in:</dt>
<dd>API Level 1</dd>
<dt>see also:</dt>
<dd>
<ul>
<li><code><a href="{@docRoot}guide/topics/manifest/permission-element.html">&lt;permission&gt;</a></code></li>
<li><code><a href="{@docRoot}guide/topics/manifest/uses-feature-element.html">&lt;uses-feature&gt;</a></code></li>
</ul>
</dd>
</dl>