1 2 Android RuntimePermissions Sample 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 All permissions still need to be declared in the AndroidManifest. However, when accessing APIs that 15 require a permission, the Activity or Fragment has to verify that the permission has been granted 16 or request the missing permissions using calls through the support library. Permissions are checked 17 through ActivityCompat#checkSelfPermission(Context, String) or 18 ContextCompat#checkSelfPermission(Context, String). 19 Permission are requested through ActivityCompat#requestPermissions(Activity, String[], int), and the response 20 received in a callback to ActivityCompat.OnRequestPermissionsResultCallback#onRequestPermissionsResult(int, String[], int[]). 21 Applications can provide an additional rational for the use of permissions after calling 22 ActivityCompat#shouldShowRequestPermissionRationale(Activity,String). This call will return true if the 23 application should provide the user with more context on why the requested permissions is needed, 24 for example if the permission request has been denied before. 25 26 If an application targets an SDK below M, all permissions are granted at runtime and are available 27 when the application is running. The support library calls handle these checks appropriately. 28 However, if permissions have been turned off in the system settings 29 for an application targeting an SDK below M, the API will return empty or no data. 30 31 Pre-requisites 32 -------------- 33 34 - Android SDK 27 35 - Android Build Tools v27.0.2 36 - Android Support Repository 37 38 Screenshots 39 ------------- 40 41 <img src="screenshots/screenshot-1.png" height="400" alt="Screenshot"/> <img src="screenshots/screenshot-2.png" height="400" alt="Screenshot"/> 42 43 Getting Started 44 --------------- 45 46 This sample uses the Gradle build system. To build this project, use the 47 "gradlew build" command or use "Import Project" in Android Studio. 48 49 Support 50 ------- 51 52 - Google+ Community: https://plus.google.com/communities/105153134372062985968 53 - Stack Overflow: http://stackoverflow.com/questions/tagged/android 54 55 If you've found an error in this sample, please file an issue: 56 https://github.com/googlesamples/android-RuntimePermissions 57 58 Patches are encouraged, and may be submitted by forking this project and 59 submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details. 60 61 License 62 ------- 63 64 Copyright 2017 The Android Open Source Project, Inc. 65 66 Licensed to the Apache Software Foundation (ASF) under one or more contributor 67 license agreements. See the NOTICE file distributed with this work for 68 additional information regarding copyright ownership. The ASF licenses this 69 file to you under the Apache License, Version 2.0 (the "License"); you may not 70 use this file except in compliance with the License. You may obtain a copy of 71 the License at 72 73 http://www.apache.org/licenses/LICENSE-2.0 74 75 Unless required by applicable law or agreed to in writing, software 76 distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 77 WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 78 License for the specific language governing permissions and limitations under 79 the License. 80
