This sample demonstrates the use of the multi-window API available in Android N. It shows the use of new Intent flags and AndroidManifest properties to define the multi-window behavior. Switch the sample app into multi-window mode to see how it affects the lifecycle and behavior of the app.
该示例演示了可用的多窗口API的使用 在Android N中。它显示了使用新的Intent标志和 AndroidManifest属性来定义多窗口行为。 将示例应用程序切换到多窗口模式以查看其影响 应用程序的生命周期和行为。
Android N introduces new APIs to support multiple activities to be displayed at the same time.
Android N引入了新的API来支持同时显示多个activity。
Activities that are started within the same task stack inherit their multiwindow properties from the activity that fired off the intent. The following features are available when an activity has been launched into a new task stack.
在同一个任务堆栈内启动的activity将从触发意图的activity继承其多窗口属性。 当活动已启动到新的任务堆栈中时，以下功能可用。
An activity can be set as not resizable through the
android:resizableActivity property in the AndroidManifest. All
applications targeting Android N or above are resizable by default.
可以通过AndroidManifest中的“android：resizableActivity”属性将activity设置为不可调整大小。 默认情况下，所有针对Android N或更高版本的应用都可以调整大小。
In split-screen mode, an activity can be started adjacent to the
launching activity by setting the
Intent.FLAG_ACTIVITY_LAUNCH_TO_ADJACENT flag in its intent.
在分屏模式下，可以通过在其(A)意图中设置“Intent.FLAG_ACTIVITY_LAUNCH_TO_ADJACENT” 标志，来启动与avtivity A 相邻的activity B。
Sometimes activities may choose to handle configuration changes
themselves (for example for games or OpenGL-based applications). In this
case, setting
android:configChanges=screenSize|smallestScreenSize|screenLayout|orientation
in the AndroidManifest definition of the activity enables callbacks for
all configuration changes that may occur during multi-window use for the
Activity. See Handling Runtime Changes.
有时，activity可能会选择自己处理配置更改（例如对于游戏或基于OpenGL的应用程序）。
在这种情况下，在activity的AndroidManifest定义中设置
android:configChanges=screenSize|smallestScreenSize|screenLayout|orientation
可以启用Activity的多窗口，使用期间可能发生的所有配置更改的回调。 请参阅处理运行时更改。
In freeform mode (where applications can be freely resized), activities
can be started within a certain area of the screen using the
ActivityOptions#setLaunchBounds call.
在自由格式模式（应用程序可以自由调整大小，需要root权限）中，
可以使用ActivityOptions＃setLaunchBounds调用在屏幕的某个区域内启动activity。
Alternatively, the preferred and minimum sizes can be set in a new
layout property in the AndroidManifest.
或者，可以在AndroidManifest中的新的“layout”属性中设置首选和最小尺寸的大小。
- Android SDK 24
- Android Build Tools v25.0.2
- Android Support Repository
This sample uses the Gradle build system. To build this project, use the "gradlew build" command or use "Import Project" in Android Studio.
此示例使用Gradle构建系统。 要构建此项目，请使用“gradlew build”命令或在Android Studio中使用“导入项目”。
- Google+ Community: https://plus.google.com/communities/105153134372062985968
- Stack Overflow: http://stackoverflow.com/questions/tagged/android
If you've found an error in this sample, please file an issue: https://github.com/googlesamples/android-MultiWindowPlayground
如果您在此示例中发现错误，请提出问题： https://github.com/googlesamples/android-MultiWindowPlayground
Patches are encouraged, and may be submitted by forking this project and submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
鼓励补丁，并可以通过转发该项目并通过GitHub提交提取请求来提交。 有关详细信息，请参阅CONTRIBUTING.md。
Copyright 2016 The Android Open Source Project, Inc.
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http://www.apache.org/licenses/LICENSE-2.0
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