Android Question Android 9: camera with switched off screen

[peacemaker]

HI, All

Does the subject looks fantastic ? Impossible to use camera class with switched screen off ?
I have created the app controlling QR-codes, the screen is dimmed, but always on - battery is for 7-8 hours only.
Any way for camera without screen ?

 

[DonManfred]

Simple answer. No, it is not possible.