private void notifyError(Exception error) {
        if (readyHandler != null) {
            readyHandler.obtainMessage(R.id.zxing_camera_error, error).sendToTarget();
        }
    }
Changes the settings for Camera.

@param callback {@link CameraParametersCallback}
zxing-android-embedded/src/com/journeyapps/barcodescanner/camera/CameraInstance.java