This Android library offers a standardized way for app developers to

• provide chess engines to other chess apps

• use provided chess engines in other chess apps

Engine authors: how to provide a chess engine using this library

• See the StockfishChessEngine directory for an example of an app which provides Stockfish to other apps

GUI authors: how to support the open exchange format

• Import the library. Android Studio: File - New - Import Module (select the chessEngineSupportLibrary directory)
• use something like:

EngineResolver resolver = new EngineResolver(context);
List<Engine> engines = resolver.resolveEngines();

engines is now a list of ChessEngines for the current target. E.g.:

TextView text = findViewById(R.id.exampleText);
for (ChessEngine engine : engines) {
    text.append(engine.getName() + ": " + engine.getEnginePath() + "\n");
}

you can directly execute the engine from the engine path