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README.md

      1 
      2 Android RuntimePermissions Sample (Kotlin)
      3 ==========================================
      4 
      5 This sample shows runtime permissions available in Android M and above.
      6 It shows how to check and request permissions at runtime, handle backwards compatibility using the
      7 support library and how to declare optional permissions for M-devices only.
      8 
      9 Introduction
     10 ------------
     11 
     12 Android M introduced runtime permissions. Applications targeting M and above need to request their
     13 permissions at runtime.
     14 
     15 All permissions still need to be declared in the AndroidManifest. However, when accessing APIs that
     16 require a permission, the Activity or Fragment has to verify that the permission has been granted
     17 or request the missing permissions using calls through the support library.
     18 
     19 Permissions are checked through `ActivityCompat#checkSelfPermission(Context, String)` or
     20 ContextCompat#checkSelfPermission(Context, String).
     21 
     22 Permission are requested through `ActivityCompat#requestPermissions(Activity, String[], int)`, and
     23 the response received in a callback to
     24 `ActivityCompat.OnRequestPermissionsResultCallback#onRequestPermissionsResult(int, String[], int[])`.
     25 
     26 Applications can provide an additional rational for the use of permissions after calling
     27 `ActivityCompat#shouldShowRequestPermissionRationale(Activity,String)`. This call will return true
     28 if the application should provide the user with more context on why the requested permissions is
     29 needed, for example if the permission request has been denied before.
     30 
     31 If an application targets an SDK below M, all permissions are granted at runtime and are available
     32 when the application is running. The support library calls handle these checks appropriately.
     33 However, if permissions have been turned off in the system settings
     34 for an application targeting an SDK below M, the API will return empty or no data.
     35 
     36 Pre-requisites
     37 --------------
     38 
     39 - Android SDK 26
     40 - Android Support Repository
     41 
     42 Screenshots
     43 -------------
     44 
     45 <img src="screenshots/screenshot-1.png" height="400" alt="Screenshot"/>
     46 <img src="screenshots/screenshot-2.png" height="400" alt="Screenshot"/>
     47 
     48 Getting Started
     49 ---------------
     50 
     51 This sample uses the Gradle build system. To build this project, use the
     52 "gradlew build" command or use "Import Project" in Android Studio.
     53 
     54 Support
     55 -------
     56 
     57 - Google+ Community: https://plus.google.com/communities/105153134372062985968
     58 - Stack Overflow: http://stackoverflow.com/questions/tagged/android
     59 
     60 If you've found an error in this sample, please file an issue:
     61 https://github.com/googlesamples/android-RuntimePermissions
     62 
     63 Patches are encouraged, and may be submitted by forking this project and
     64 submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
     65 
     66 License
     67 -------
     68 
     69 Copyright 2017 The Android Open Source Project, Inc.
     70 
     71 Licensed to the Apache Software Foundation (ASF) under one or more contributor
     72 license agreements.  See the NOTICE file distributed with this work for
     73 additional information regarding copyright ownership.  The ASF licenses this
     74 file to you under the Apache License, Version 2.0 (the "License"); you may not
     75 use this file except in compliance with the License.  You may obtain a copy of
     76 the License at
     77 
     78 http://www.apache.org/licenses/LICENSE-2.0
     79 
     80 Unless required by applicable law or agreed to in writing, software
     81 distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
     82 WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
     83 License for the specific language governing permissions and limitations under
     84 the License.
     85