1
2Android MultiWindowPlayground Sample
3===================================
4
5This sample demonstrates the use of the multi-window API available
6in Android N. It shows the use of new Intent flags and
7AndroidManifest properties to define the multi-window behavior.
8Switch the sample app into multi-window mode to see how it affects
9the lifecycle and behavior of the app.
10
11Introduction
12------------
13
14Android N introduces new APIs to support multiple activities
15to be displayed at the same time.
16
17Activities that are started within the same task stack
18inherit their multiwindow properties from the activity that fired
19off the intent. The following features are available when an activity
20has been launched into a new task stack.
21
22An activity can be set as not resizable through the
23`android:resizableActivity` property in the AndroidManifest. All
24applications targeting Android N or above are resizable by default.
25
26In split-screen mode, an activity can be started adjacent to the
27launching activity by setting the
28`Intent.FLAG_ACTIVITY_LAUNCH_TO_ADJACENT` flag in its intent.
29
30Sometimes activities may choose to handle configuration changes
31themselves (for example for games or OpenGL-based applications). In this
32case, setting
33`android:configChanges=screenSize|smallestScreenSize|screenLayout|orientation`
34in the AndroidManifest definition of the activity enables callbacks for
35all configuration changes that may occur during multi-window use for the
36Activity. See [Handling Runtime Changes][1].
37
38In freeform mode (where applications can be freely resized), activities
39can be started within a certain area of the screen using the
40`ActivityOptions#setLaunchBounds` call.
41
42Alternatively, the preferred and minimum sizes can be set in a new
43`layout` property in the AndroidManifest.
44
45
46[1]: https://developer.android.com/guide/topics/resources/runtime-changes.html
47
48Pre-requisites
49--------------
50- Android SDK Preview N
51- Android Build Tools v23.0.0
52- Android Support Repository
53
54Screenshots
55-------------
56
57<img src="screenshots/main.png" height="400" alt="Screenshot"/>
58
59Getting Started
60---------------
61
62This sample uses the Gradle build system. To build this project, use the
63"gradlew build" command or use "Import Project" in Android Studio.
64
65Support
66-------
67
68- Google+ Community: https://plus.google.com/communities/105153134372062985968
69- Stack Overflow: http://stackoverflow.com/questions/tagged/android
70
71If you've found an error in this sample, please file an issue:
72https://github.com/googlesamples/android-MultiWindowPlayground
73
74Patches are encouraged, and may be submitted by forking this project and
75submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
76
77License
78-------
79
80Copyright 2016 The Android Open Source Project, Inc.
81
82Licensed to the Apache Software Foundation (ASF) under one or more contributor
83license agreements.  See the NOTICE file distributed with this work for
84additional information regarding copyright ownership.  The ASF licenses this
85file to you under the Apache License, Version 2.0 (the "License"); you may not
86use this file except in compliance with the License.  You may obtain a copy of
87the License at
88
89http://www.apache.org/licenses/LICENSE-2.0
90
91Unless required by applicable law or agreed to in writing, software
92distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
93WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
94License for the specific language governing permissions and limitations under
95the License.
96