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103 lines
3.6 KiB
103 lines
3.6 KiB
7 months ago
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Android AppRestrictionSchema Sample
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===================================
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A basic app showing how to allow a device administrator to restrict user
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activities using the Android Device Administration API. The app exports
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a custom policy that enables or disables a UI control. Device Administration
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applications are able to enforce a specific value for this policy, as
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directed by enterprise administrators.
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Introduction
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------------
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The [Android Device Administration API][1] allows enterprise administrators to
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enforce specific policies on a managed device. The system provides policies
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that control settings such as password complexity, screen lock, or camera
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availability. Developers can also augment this list with custom policies
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that control specific features within their applications. For example,
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a web browser could provide access to a whitelist of allowed domains.
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The list of policies exposed by an app must be specified using a file
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inside of the `res/xml` directory, using the `<restriction>` tag:
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```xml
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<restrictions xmlns:android="http://schemas.android.com/apk/res/android">
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<restriction
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android:defaultValue="false"
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android:description="@string/description_can_say_hello"
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android:key="can_say_hello"
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android:restrictionType="bool"
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android:title="@string/title_can_say_hello" />
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</restrictions>
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```
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In this sample, that file can be found at
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`Application/src/main/res/xml/app_restrictions.xml`. This file must be
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also be declared inside of `ApplicationManifest.xml` using a `<meta-data>`
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element:
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```xml
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<meta-data
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android:name="android.content.APP_RESTRICTIONS"
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android:resource="@xml/app_restrictions" />
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```
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At runtime, the current list of restrictions enforced by policy can be
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checked by calling [RestrictionsManager.getApplicationRestrictions()][2].
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[1]: http://developer.android.com/guide/topics/admin/device-admin.html
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[2]: https://developer.android.com/reference/android/content/RestrictionsManager.html#getApplicationRestrictions()
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Pre-requisites
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--------------
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- Android SDK 27
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- Android Build Tools v27.0.2
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- Android Support Repository
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Screenshots
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-------------
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<img src="screenshots/main.png" height="400" alt="Screenshot"/>
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Getting Started
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---------------
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This sample uses the Gradle build system. To build this project, use the
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"gradlew build" command or use "Import Project" in Android Studio.
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Support
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-------
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- Google+ Community: https://plus.google.com/communities/105153134372062985968
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- Stack Overflow: http://stackoverflow.com/questions/tagged/android
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If you've found an error in this sample, please file an issue:
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https://github.com/googlesamples/android-AppRestrictionSchema
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Patches are encouraged, and may be submitted by forking this project and
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submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
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License
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-------
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Copyright 2017 The Android Open Source Project, Inc.
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Licensed to the Apache Software Foundation (ASF) under one or more contributor
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license agreements. See the NOTICE file distributed with this work for
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additional information regarding copyright ownership. The ASF licenses this
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file to you under the Apache License, Version 2.0 (the "License"); you may not
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use this file except in compliance with the License. You may obtain a copy of
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the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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License for the specific language governing permissions and limitations under
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the License.
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