getExposureOffsetStepSize method
Gets the supported step size for exposure offset for the selected camera in EV units.
Returns 0 when the camera supports using a free value without stepping and returns -1 when exposure compensation is not supported.
Implementation
@override
Future<double> getExposureOffsetStepSize(int cameraId) async {
// TODO(jokerttu): Implement exposure control support, https://github.com/flutter/flutter/issues/97537.
// Value is returned to support existing implementations.
return 1.0;
}