Use CameraManager and CameraCharacteristics :

Below is a for handling this access denial gracefully in an app or custom ROM. Feature: Managed Access to vendor.camera.aux.packagelist 1. Overview Goal: Allow apps to safely check and use the vendor.camera.aux.packagelist system property (which lists packages allowed to access auxiliary cameras) without crashing due to AccessDeniedException or log spam.

fun hasAuxCameras(): Boolean val cameraManager = getSystemService(Context.CAMERA_SERVICE) as CameraManager return cameraManager.cameraIdList.any id -> val characteristics = cameraManager.getCameraCharacteristics(id) val lensFacing = characteristics.get(CameraCharacteristics.LENS_FACING) lensFacing == CameraCharacteristics.LENS_FACING_BACK && id != "0"