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