Home | History | Annotate | Download | only in manifest
      1 page.title=<uses-permission>
      2 parent.title=The AndroidManifest.xml File
      3 parent.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
     14 through <code>&lt;uses-permission&gt;</code> can affect how
     15 your application is filtered by Google Play.</p>
     16 
     17 <p>If you request a hardware-related permission &mdash;
     18 <code>CAMERA</code>, for example &mdash; Google Play assumes that your
     19 application requires the underlying hardware feature and filters the application
     20 from devices that do not offer it.</p>
     21 
     22 <p>To control filtering, always explicitly declare
     23 hardware features in <code>&lt;uses-feature&gt;</code> elements, rather than
     24 relying on Google Play to "discover" the requirements in
     25 <code>&lt;uses-permission&gt;</code> elements. Then, if you want to disable
     26 filtering for a particular feature, you can add a
     27 <code>android:required="false"</code> attribute to the
     28 <code>&lt;uses-feature&gt;</code> declaration.</p>
     29 
     30 <p>For a list of permissions that imply
     31 hardware features, see the documentation for the <a
     32 href="{@docRoot}guide/topics/manifest/uses-feature-element.html#permissions-features">
     33 <code>&lt;uses-feature&gt;</code></a> element.</p>
     34 </div>
     35 </div>
     36 
     37 <dt>syntax:</dt>
     38 <dd><pre class="stx">&lt;uses-permission android:<a href="#nm">name</a>="<i>string</i>"
     39         android:<a href="#maxSdk">maxSdkVersion</a>="<i>integer</i>" /&gt;</pre></dd>
     40 
     41 <dt>contained in:</dt>
     42 <dd><code><a href="{@docRoot}guide/topics/manifest/manifest-element.html">&lt;manifest&gt;</a></code></dd>
     43 
     44 <dt>description:</dt>
     45 <dd itemprop="description">Requests a permission that the application must be granted in
     46 order for it to operate correctly. Permissions are granted by the user when the 
     47 application is installed (on devices running Android 5.1 and lower) or while the app is running (on devices running Android 6.0 and higher).
     48 
     49 <p>
     50 For more information on permissions, see the 
     51 <a href="{@docRoot}guide/topics/manifest/manifest-intro.html#perms">Permissions</a></code> 
     52 section in the introduction and the separate
     53 <a href="{@docRoot}guide/topics/security/permissions.html">System
     54 Permissions</a> API guide.
     55 A list of permissions defined by the base platform can be found at 
     56 {@link android.Manifest.permission android.Manifest.permission}.
     57 
     58 <dt>attributes:</dt>
     59 <dd><dl class="attr">
     60 <dt><a name="nm"></a>{@code android:name}</dt>
     61 <dd>The name of the permission.  It can be a permission defined by the 
     62 application with the <code><a href="{@docRoot}guide/topics/manifest/permission-element.html">&lt;permission&gt;</a></code> 
     63 element, a permission defined by another application, or one of the 
     64 standard system permissions (such as
     65 {@link android.Manifest.permission#CAMERA "android.permission.CAMERA"}
     66 or {@link android.Manifest.permission#READ_CONTACTS
     67 "android.permission.READ_CONTACTS"}).  As these examples show,
     68 a permission name typically includes the package name as a prefix.</dd>
     69 
     70 <dt><a name="maxSdk"></a>{@code android:maxSdkVersion}</dt>
     71 <dd>The highest API level at which this permission should be granted to your app.
     72 Setting this attribute is useful if the permission your app requires is no longer needed beginning
     73 at a certain API level.
     74 <p>For example, beginning with Android 4.4 (API level 19), it's no longer necessary for your app
     75 to request the {@link android.Manifest.permission#WRITE_EXTERNAL_STORAGE} permission when your
     76 app wants to write to its own application-specific directories on external storage (the directories
     77 provided by {@link android.content.Context#getExternalFilesDir getExternalFilesDir()}). However,
     78 the permission <em>is required</em> for API level 18 and lower. So you can declare that this
     79 permission is needed only up to API level 18 with a declaration such as this:
     80 <pre>
     81 &lt;uses-permission
     82      android:name="android.permission.WRITE_EXTERNAL_STORAGE"
     83      android:maxSdkVersion="18" />
     84 </pre>
     85 <p>This way, beginning with API level 19, the system will no longer grant your app the
     86 {@link android.Manifest.permission#WRITE_EXTERNAL_STORAGE} permission.</p>
     87 <p>This attribute was added in API level 19.</p>
     88 </dd>
     89 
     90 </dl></dd>
     91 
     92 <!-- ##api level indication## -->
     93 <dt>introduced in:</dt>
     94 <dd>API Level 1</dd>
     95 
     96 <dt>see also:</dt>
     97 <dd>
     98 <ul>
     99   <li><code><a href="{@docRoot}guide/topics/manifest/permission-element.html">&lt;permission&gt;</a></code></li>
    100   <li><a href="uses-permission-sdk-23-element.html"
    101       ><code>&lt;uses-permission-sdk-23&gt;</code></a></li>
    102   <li><code><a href="{@docRoot}guide/topics/manifest/uses-feature-element.html">&lt;uses-feature&gt;</a></code></li>
    103 </ul>
    104 </dd>
    105 
    106 </dl>
    107