1page.title=<uses-permission> 2parent.title=The AndroidManifest.xml File 3parent.link=manifest-intro.html 4@jd:body 5 6<dl class="xml"> 7 8<div class="sidebox-wrapper"> 9<div class="sidebox"> 10<img src="{@docRoot}assets/images/icon_play.png" style="float:left;margin:0;padding:0;"> 11<p style="color:#669999;padding-top:1em;">Google Play Filtering</p> 12 13<p style="clear:left;">In some cases, the permissions that you request 14through <code><uses-permission></code> can affect how 15your application is filtered by Google Play.</p> 16 17<p>If you request a hardware-related permission — 18<code>CAMERA</code>, for example — Google Play assumes that your 19application requires the underlying hardware feature and filters the application 20from devices that do not offer it.</p> 21 22<p>To control filtering, always explicitly declare 23hardware features in <code><uses-feature></code> elements, rather than 24relying on Google Play to "discover" the requirements in 25<code><uses-permission></code> elements. Then, if you want to disable 26filtering for a particular feature, you can add a 27<code>android:required="false"</code> attribute to the 28<code><uses-feature></code> declaration.</p> 29 30<p>For a list of permissions that imply 31hardware features, see the documentation for the <a 32href="{@docRoot}guide/topics/manifest/uses-feature-element.html#permissions-features"> 33<code><uses-feature></code></a> element.</p> 34</div> 35</div> 36 37<dt>syntax:</dt> 38<dd><pre class="stx"><uses-permission android:<a href="#nm">name</a>="<i>string</i>" 39 android:<a href="#maxSdk">maxSdkVersion</a>="<i>integer</i>" /></pre></dd> 40 41<dt>contained in:</dt> 42<dd><code><a href="{@docRoot}guide/topics/manifest/manifest-element.html"><manifest></a></code></dd> 43 44<dt>description:</dt> 45<dd itemprop="description">Requests a permission that the application must be granted in 46order for it to operate correctly. Permissions are granted by the user when the 47application is installed, not while it's running. 48 49<p> 50For more information on permissions, see the 51<a href="{@docRoot}guide/topics/manifest/manifest-intro.html#perms">Permissions</a></code> 52section in the introduction and the separate 53<a href="{@docRoot}guide/topics/security/security.html">Security and Permissions</a> document. 54A list of permissions defined by the base platform can be found at 55{@link android.Manifest.permission android.Manifest.permission}. 56 57<dt>attributes:</dt> 58<dd><dl class="attr"> 59<dt><a name="nm"></a>{@code android:name}</dt> 60<dd>The name of the permission. It can be a permission defined by the 61application with the <code><a href="{@docRoot}guide/topics/manifest/permission-element.html"><permission></a></code> 62element, a permission defined by another application, or one of the 63standard system permissions, such as "{@code android.permission.CAMERA}" 64or "{@code android.permission.READ_CONTACTS}". As these examples show, 65a permission name typically includes the package name as a prefix.</dd> 66 67<dt><a name="maxSdk"></a>{@code android:maxSdkVersion}</dt> 68<dd>The highest API level at which this permission should be granted to your app. 69Setting this attribute is useful if the permission your app requires is no longer needed beginning 70at a certain API level. 71<p>For example, beginning with Android 4.4 (API level 19), it's no longer necessary for your app 72to request the {@link android.Manifest.permission#WRITE_EXTERNAL_STORAGE} permission when your 73app wants to write to its own application-specific directories on external storage (the directories 74provided by {@link android.content.Context#getExternalFilesDir getExternalFilesDir()}). However, 75the permission <em>is required</em> for API level 18 and lower. So you can declare that this 76permission is needed only up to API level 18 with a declaration such as this: 77<pre> 78<uses-permission 79 android:name="android.permission.WRITE_EXTERNAL_STORAGE" 80 android:maxSdkVersion="18" /> 81</pre> 82<p>This way, beginning with API level 19, the system will no longer grant your app the 83{@link android.Manifest.permission#WRITE_EXTERNAL_STORAGE} permission.</p> 84</dd> 85 86</dl></dd> 87 88<!-- ##api level indication## --> 89<dt>introduced in:</dt> 90<dd>API Level 1</dd> 91 92<dt>see also:</dt> 93<dd> 94<ul> 95 <li><code><a href="{@docRoot}guide/topics/manifest/permission-element.html"><permission></a></code></li> 96 <li><code><a href="{@docRoot}guide/topics/manifest/uses-feature-element.html"><uses-feature></a></code></li> 97</ul> 98</dd> 99 100</dl> 101
