In the developer preview for Android N, multi-window support is enabled by default. How can I disable it for activites? Also what will happen if a multi-window enabled app launches my disabled activity?
There is an app “MultiWindow Toggle for Samsung” available on Google Play that allows you to turn the multi-window mode off/on using a toggle button. It also has an option for adding the Multi window Quick Toggle to the notification drawer for quicker access.
Multi-display. Android 10 (API level 29) supports activities on secondary displays. If an activity is running on a device with multiple displays, users can move the activity from one display to another. Multi-resume applies to multi-screen scenarios as well; several activities can receive user input at the same time.
In your manifest, you need:
android:resizeableActivity="false"
So in your manifest file, for each activity that you want to disable the feature in, it would be like:
<activity android:name=".SomeActivity" android:label="@string/app_name" android:resizeableActivity="false" />
Or, if you want to disable it in your entire app:
<application android:resizeableActivity="false" > . . . </application>
As for what will happen, Android just won't let your app go into multi-screen mode - it will just stay full screen. See https://developer.android.com/preview/features/multi-window.html and https://developer.android.com/guide/topics/manifest/activity-element.html#resizeableActivity.
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