The Android wrapper hasn't been updated in a while. The used Orbbec SDK v2 is currently on version 2.2.8.
We are developing a cross-platform application (Windows, Android, mostly using C++) that uses Orbbec sensors and it would make our life easier if we could develop against one version only instead of having to support two.
Therefore we kindly ask you to update the Android Wrapper to the latest SDK version, or, even better, ship the Android Wrapper as part of the main Orbbec SDK v2 repo and keep it updated whenever there is a new release (this is what librealsense is doing and it works well).