Overview: 

Android 11 makes it possible for apps running on devices with hinge-based screen configurations to determine the angle of the hinge by providing a new sensor with TYPE_HINGE_ANGLE, and a new SensorEvent that can monitor the hinge angle and provides a measurement in degrees between two integral parts of the device. You can use these raw measurements to perform granular animations as the user manipulates the device. 

GUIDE: https://developer.android.com/guide/topics/large-screens/learn-about-foldables#hinge_angle 

Proposed actions:

• Check how does this new SensorEvent can work with QtSensors, may need an sensor backend.