To help people to get started with AndroJena, I’ve created separate Android Studio modules for AndroJena, ARQoid and Lucenoid (i.e., ported Android versions of their Jena counterparts). I also created a simple AndroidRules project that includes these modules to perform ontology reasoning, utilizing an OWL2 RL ruleset . Clearly, you can use any other ruleset as well. You can find everything on GitHub!
The project was created to be usable out-of-the-box — just point Android Studio towards the project folder (File > Open…) and select the AndroidRules project. If you run into issues, checkout the README file.
The AndroidRules app loads a small subset of the pizza ontology and infers types for DominosMargheritaPizza.
In another post I describe a project that implements OWL2 RL reasoning using the regular Apache Jena.
 W. Van Woensel, S.S.R. Abidi, Benchmarking Semantic Reasoning on Mobile Platforms: Towards Optimization Using OWL2 RL, Semant. Web J. (2018).