A feature on vanilla Android 7.0+ devices and older Samsung devices for displaying multiple apps in a split-screen view
Multi-window is a feature for displaying more than one app at the same time in a split-screen view.
Certain manufacturers such as Samsung have their own multi-window implementations as early as Android 4.1; native support for multi-window was initially implemented in Android 6.0 and fully released in Android 7.0, deprecating the manufacturer implementations.
On handheld devices, two apps can run side-by-side or one-above-the-other in split-screen mode. On TV devices, apps can use picture-in-picture mode to continue video playback while users are interacting with another app.