80 lines
3.5 KiB
Markdown
80 lines
3.5 KiB
Markdown
|
|
Android RuntimePermissions Sample
|
|
===================================
|
|
|
|
This sample shows runtime permissions available in Android M and above.
|
|
It shows how to check and request permissions at runtime, handle backwards compatibility using the
|
|
support library and how to declare optional permissions for M-devices only.
|
|
|
|
Introduction
|
|
------------
|
|
|
|
Android M introduced runtime permissions. Applications targeting M and above need to request their
|
|
permissions at runtime.
|
|
All permissions still need to be declared in the AndroidManifest. However, when accessing APIs that
|
|
require a permission, the Activity or Fragment has to verify that the permission has been granted
|
|
or request the missing permissions using calls through the support library. Permissions are checked
|
|
through ActivityCompat#checkSelfPermission(Context, String) or
|
|
ContextCompat#checkSelfPermission(Context, String).
|
|
Permission are requested through ActivityCompat#requestPermissions(Activity, String[], int), and the response
|
|
received in a callback to ActivityCompat.OnRequestPermissionsResultCallback#onRequestPermissionsResult(int, String[], int[]).
|
|
Applications can provide an additional rational for the use of permissions after calling
|
|
ActivityCompat#shouldShowRequestPermissionRationale(Activity,String). This call will return true if the
|
|
application should provide the user with more context on why the requested permissions is needed,
|
|
for example if the permission request has been denied before.
|
|
|
|
If an application targets an SDK below M, all permissions are granted at runtime and are available
|
|
when the application is running. The support library calls handle these checks appropriately.
|
|
However, if permissions have been turned off in the system settings
|
|
for an application targeting an SDK below M, the API will return empty or no data.
|
|
|
|
Pre-requisites
|
|
--------------
|
|
|
|
- Android SDK 27
|
|
- Android Build Tools v27.0.2
|
|
- Android Support Repository
|
|
|
|
Screenshots
|
|
-------------
|
|
|
|
<img src="screenshots/screenshot-1.png" height="400" alt="Screenshot"/> <img src="screenshots/screenshot-2.png" height="400" alt="Screenshot"/>
|
|
|
|
Getting Started
|
|
---------------
|
|
|
|
This sample uses the Gradle build system. To build this project, use the
|
|
"gradlew build" command or use "Import Project" in Android Studio.
|
|
|
|
Support
|
|
-------
|
|
|
|
- Google+ Community: https://plus.google.com/communities/105153134372062985968
|
|
- Stack Overflow: http://stackoverflow.com/questions/tagged/android
|
|
|
|
If you've found an error in this sample, please file an issue:
|
|
https://github.com/googlesamples/android-RuntimePermissions
|
|
|
|
Patches are encouraged, and may be submitted by forking this project and
|
|
submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
|
|
|
|
License
|
|
-------
|
|
|
|
Copyright 2017 The Android Open Source Project, Inc.
|
|
|
|
Licensed to the Apache Software Foundation (ASF) under one or more contributor
|
|
license agreements. See the NOTICE file distributed with this work for
|
|
additional information regarding copyright ownership. The ASF licenses this
|
|
file to you under the Apache License, Version 2.0 (the "License"); you may not
|
|
use this file except in compliance with the License. You may obtain a copy of
|
|
the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
License for the specific language governing permissions and limitations under
|
|
the License.
|