如何在Android N中更改多窗口显示的视图?如何检查应用程序是否在多窗口中? [英] How to change view for multiple window display in Android N? How to check application is in multiwindow or not?

问题描述

如何为多个窗口"提供单独的布局或单独的活动?

How can we give separate layout or separate activity for Multiple window ?

例如我已经在android开发者网站的帮助下检查了以下内容

eg. I have checked below things with help of android developer site

<activity android:name="com.configure.it.MyScreen">
    <layout android:defaultHeight="400dp"
          android:defaultWidth="200dp"
          android:gravity="top|end"
          android:minimalSize="300dp" />
</activity>

通过声明以上内容，它会影响活动在多窗口模式下的行为.

by declaring above things it affect how an activity behaves in multi-window mode.

但是，如果在多窗口中激活了我的特定屏幕，如何显示不同的布局?

But how can I show different layout if my particular screen is activated on Multiple-Window ?

推荐答案

来自 Android开发人员链接.

要在多窗口激活中使用的UI或单独的布局进行更改.

To make changes in UI or separate layout which should be used on Multiple-window activate.

我们可以通过以下方法检查活动是否在多窗口中

We can check if activity is in Multiple-window by following way

• 从活动Activity.isInMultiWindowMode()中调用以查明该活动是否处于多窗口模式.

• From activity Activity.isInMultiWindowMode() Call to find out if the activity is in multi-window mode.

例如要检查活动"中是否有多个窗口(而不是标题)(或者​​，如果不在多个窗口中，则任何视图都应具有红色背景色，然后应为绿色背景色)

eg. To check in Activity if its multiple window than header(or any view should have Red background color if its not in multiple window thn it should be Green background color)

headerView.setBackgroundColor(inMultiWindow()?Color.RED:Color.GREEN);

也可以使用inMultiWindow()替换片段

• 要在多窗口激活中获得回调.

From Activity onMultiWindowChanged方法可用于处理此方法回调上的运行时更改.只要活动进入或退出具有boolean值的多窗口模式，系统都会在此方法上进行回调. a href ="https://github.com/googlesamples/android-MultiWindowPlayground/blob/master/Application/src/main/java/com/android/multiwindowplayground/activities/LoggingActivity.java" rel ="nofollow noreferrer">示例链接& android开发者链接

From Activity onMultiWindowChanged method is available to handle runtime changes on this method callback.System will give callback on this method whenever the activity goes into or out of multi-window mode with boolean value.With the help of sample link & android developer link

@Override
public void onMultiWindowChanged(boolean inMultiWindow) {
    super.onMultiWindowChanged(inMultiWindow);
    headerView.setBackgroundColor(inMultiWindow ? Color.RED : Color.GREEN);
    // here we can change entire fragment also.
    //If multiple window in than seperate and for multiple window out different

}

如果我还有其他东西，将继续更新.

Will keep updating if I get anything else.

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