Foldable devices offer unique viewing experiences. Rear display mode and dual‑screen mode enable you to build special display features for foldable devices such as rear‑camera selfie preview and simultaneous but different displays on inner and outer screens.
Rear display mode
Typically when a foldable device is unfolded, only the inner screen is active. Rear display mode lets you move an activity to the outer screen of a foldable device, which usually faces away from the user while the device is unfolded. The inner display automatically turns off.
A novel application is to display the camera preview on the outer screen, so users can take selfies with the rear camera, which usually provides m