1 page.title=<permission> 2 @jd:body 3 4 <dl class="xml"> 5 <dt>syntax:</dt></dt> 6 <dd><pre class="stx"><permission android:<a href="#desc">description</a>="<i>string resource</i>" 7 android:<a href="#icon">icon</a>="<i>drawable resource</i>" 8 android:<a href="#label">label</a>="<i>string resource</i>" 9 android:<a href="#nm">name</a>="<i>string</i>" 10 android:<a href="#pgroup">permissionGroup</a>="<i>string</i>" 11 android:<a href="#plevel">protectionLevel</a>=["normal" | "dangerous" | 12 "signature" | "signatureOrSystem"] /></pre></dd> 13 14 <dt>contained in:</dt> 15 <dd><code><a href="{@docRoot}guide/topics/manifest/manifest-element.html"><manifest></a></code></dd> 16 17 <dt>description:</dt> 18 <dd>Declares a security permission that can be used to limit access 19 to specific components or features of this or other applications. 20 See the <a href="{@docRoot}guide/topics/manifest/manifest-intro.html#perms">Permissions</a> 21 section in the introduction, 22 and the <a href="{@docRoot}guide/topics/security/security.html">Security and Permissions</a> 23 document for more information on how permissions work.</dd> 24 25 <dt>attributes:</dt> 26 <dd><dl class="attr"> 27 <dt><a name="desc"></a>{@code android:description}</dt> 28 <dd>A user-readable description of the permission, longer and more 29 informative than the label. It may be displayed to explain the 30 permission to the user — for example, when the user is asked 31 whether to grant the permission to another application. 32 33 <p> 34 This attribute must be set as a reference to a string resource; 35 unlike the {@code label} attribute, it cannot be a raw string. 36 </p></dd> 37 38 <dt><a name="icon"></a>{@code android:icon}</dt> 39 <dd>A reference to a drawable resource for an icon that represents the 40 permission.</dd> 41 42 <dt><a name="label"></a>{@code android:label}</dt> 43 <dd>A name for the permission, one that can be displayed to users. 44 45 <p> 46 As a convenience, the label can be directly set 47 as a raw string while you're developing the application. However, 48 when the application is ready to be published, it should be set as a 49 reference to a string resource, so that it can be localized like other 50 strings in the user interface. 51 </p></dd> 52 53 <dt><a name="nm"></a>{@code android:name}</dt> 54 <dd>The name of the permission. This is the name that will be used in 55 code to refer to the permission — for example, in a 56 <code><a href="{@docRoot}guide/topics/manifest/uses-permission-element.html"><uses-permission></a></code> element and the 57 {@code permission} attributes of application components. 58 59 <p> 60 The name must be unique, so it should use Java-style scoping — 61 for example, "{@code com.example.project.PERMITTED_ACTION}". 62 </p></dd> 63 64 <dt><a name="pgroup"></a>{@code android:permissionGroup}</dt> 65 <dd>Assigns this permission to a group. The value of this attribute is 66 the name of the group, which must be declared with the 67 <code><a href="{@docRoot}guide/topics/manifest/permission-group-element.html"><permission-group></a></code> element in this 68 or another application. If this attribute is not set, the permission 69 does not belong to a group.</dd> 70 71 <dt><a name="plevel"></a>{@code android:protectionLevel}</dt> 72 <dd>Characterizes the potential risk implied in the permission and 73 indicates the procedure the system should follow when determining 74 whether or not to grant the permission to an application requesting it. 75 The value can be set to one of the following strings: 76 77 <table> 78 <tr> 79 <th>Value</th> 80 <th>Meaning</th> 81 </tr><tr> 82 <td>"{@code normal}"</td> 83 <td>The default value. A lower-risk permission that gives requesting 84 applications access to isolated application-level features, with 85 minimal risk to other applications, the system, or the user. 86 The system automatically grants this type 87 of permission to a requesting application at installation, without 88 asking for the user's explicit approval (though the user always 89 has the option to review these permissions before installing). 90 </tr><tr> 91 <td>"{@code dangerous}"</td> 92 <td>A higher-risk permission that would give a requesting application 93 access to private user data or control over the device that can 94 negatively impact the user. Because this type of permission 95 introduces potential risk, the system may not automatically 96 grant it to the requesting application. For example, any dangerous 97 permissions requested by an application may be displayed to the 98 user and require confirmation before proceeding, or some other 99 approach may be taken to avoid the user automatically allowing 100 the use of such facilities. 101 </tr><tr> 102 <td>"{@code signature}"</td> 103 <td>A permission that the system grants only if the requesting 104 application is signed with the same certificate as the application 105 that declared the permission. If the certificates match, the system 106 automatically grants the permission without notifying the user or 107 asking for the user's explicit approval. 108 </tr><tr> 109 <td>"{@code signatureOrSystem}"</td> 110 <td>A permission that the system grants only to applications that are 111 in the Android system image <em>or</em> that are signed with the same 112 certificates as those in the system image. Please avoid using this 113 option, as the {@code signature} protection level should be sufficient 114 for most needs and works regardless of exactly where applications are 115 installed. The "{@code signatureOrSystem}" 116 permission is used for certain special situations where multiple 117 vendors have applications built into a system image and need 118 to share specific features explicitly because they are being built 119 together. 120 </tr> 121 </table> 122 </dd> 123 </dl></dd> 124 125 <!-- ##api level indication## --> 126 <dt>introduced in:</dt> 127 <dd>API Level 1</dd> 128 129 <dt>see also:</dt> 130 <dd><code><a href="{@docRoot}guide/topics/manifest/uses-permission-element.html"><uses-permission></a></code> 131 <br/><code><a href="{@docRoot}guide/topics/manifest/permission-tree-element.html"><permission-tree></a></code> 132 <br/><code><a href="{@docRoot}guide/topics/manifest/permission-group-element.html"><permission-group></a></code></dd> 133 </dd> 134 135 </dl> 136
