64.1 Foldables and Multi-Window Support

When an app is running on a foldable device there is the potential that it will end up sharing the screen with other apps and encountering significant configuration changes (such as the size of the screen changing as the user folds or unfolds the display). If your app is already designed to handle device orientation changes, it will most likely also be able to handle changes caused by screen folding, though thorough testing is recommended.

Multi-window support was originally introduced with Android 7. Unlike previous versions of Android, multi-window support in Android 7 allowed more than one activity to be displayed on the device screen at one time.

Multi-window support in Android provides three different forms of window support. Split-screen mode, available on most phone, foldable and tablet devices, provides a split screen environment where two activities appear either side by side or one above the other. A moveable divider is provided...