1 Android MultiWindowPlayground Sample (Kotlin) 2 ============================================= 3 4 This sample demonstrates the use of the multi-window API available 5 in Android N. It shows the use of new Intent flags and 6 AndroidManifest properties to define the multi-window behavior. 7 Switch the sample app into multi-window mode to see how it affects 8 the lifecycle and behavior of the app. 9 10 Introduction 11 ------------ 12 13 Android N introduces new APIs to support multiple activities 14 to be displayed at the same time. 15 16 Activities that are started within the same task stack 17 inherit their multiwindow properties from the activity that fired 18 off the intent. The following features are available when an activity 19 has been launched into a new task stack. 20 21 An activity can be set as not resizable through the 22 `android:resizableActivity` property in the AndroidManifest. All 23 applications targeting Android N or above are resizable by default. 24 25 In split-screen mode, an activity can be started adjacent to the 26 launching activity by setting the 27 `Intent.FLAG_ACTIVITY_LAUNCH_TO_ADJACENT` flag in its intent. 28 29 Sometimes activities may choose to handle configuration changes 30 themselves (for example for games or OpenGL-based applications). In this 31 case, setting 32 `android:configChanges=screenSize|smallestScreenSize|screenLayout|orientation` 33 in the AndroidManifest definition of the activity enables callbacks for 34 all configuration changes that may occur during multi-window use for the 35 Activity. See [Handling Runtime Changes][1]. 36 37 In freeform mode (where applications can be freely resized), activities 38 can be started within a certain area of the screen using the 39 `ActivityOptions#setLaunchBounds` call. 40 41 Alternatively, the preferred and minimum sizes can be set in a new 42 `layout` property in the AndroidManifest. 43 44 45 [1]: https://developer.android.com/guide/topics/resources/runtime-changes.html 46 47 Pre-requisites 48 -------------- 49 50 - Android SDK 27 51 - Android Support Repository 52 53 Screenshots 54 ------------- 55 56 <img src="screenshots/main.png" height="400" alt="Screenshot"/> 57 58 Getting Started 59 --------------- 60 61 This sample uses the Gradle build system. To build this project, use the 62 "gradlew build" command or use "Import Project" in Android Studio. 63 64 Support 65 ------- 66 67 - Google+ Community: https://plus.google.com/communities/105153134372062985968 68 - Stack Overflow: http://stackoverflow.com/questions/tagged/android 69 70 If you've found an error in this sample, please file an issue: 71 https://github.com/googlesamples/android-MultiWindowPlayground 72 73 Patches are encouraged, and may be submitted by forking this project and 74 submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details. 75 76 License 77 ------- 78 79 Copyright 2017 The Android Open Source Project, Inc. 80 81 Licensed to the Apache Software Foundation (ASF) under one or more contributor 82 license agreements. See the NOTICE file distributed with this work for 83 additional information regarding copyright ownership. The ASF licenses this 84 file to you under the Apache License, Version 2.0 (the "License"); you may not 85 use this file except in compliance with the License. You may obtain a copy of 86 the License at 87 88 http://www.apache.org/licenses/LICENSE-2.0 89 90 Unless required by applicable law or agreed to in writing, software 91 distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 92 WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 93 License for the specific language governing permissions and limitations under 94 the License. 95