How to implement a React Native UI component method in Android

It's clear to me that for react-native native modules we can use the @ReactMethod to export a method and call it from JSX, but how do we do the same thing in react-native native UI components?

In the documentation I only see @ReactProp being mentioned. If @ReactMethod is not working, how do I access a property of my native UI component from JSX then? (On iOS this can be done on native ui components with RCT_EXPORT_METHOD but on Android is something similar possible?)

Thank you.

Ok I ended up creating a Module, and passing a UI Component reference on its constructor:

Here's my UI component:

public class RCTACCalendarManager extends ViewGroupManager<RCTACCalendar> {
    public static final String REACT_CLASS = "RCTACCalendar";
    private RCTACCalendar mCalendarInstance;

    public RCTACCalendarManager(ReactApplicationContext reactContext) {
        super();
    }

    @Override
    public String getName() {
        return REACT_CLASS;
    }

    @Override
    public RCTACCalendar createViewInstance(ThemedReactContext context) {
        mCalendarInstance = new RCTACCalendar(context);
        return mCalendarInstance;
    }

    public RCTACCalendar getCalendarInstance() { // <-- returns the View instance
        return mCalendarInstance;
    }
}

Here's the Module I created for that component:

public class RCTACCalendarModule extends ReactContextBaseJavaModule {
    private RCTACCalendar mCalendarInstance;

    public RCTACCalendarModule(ReactApplicationContext reactContext, RCTACCalendarManager calManager) {
        super(reactContext);
        if (calManager != null) {
            mCalendarInstance = calManager.getCalendarInstance();
        }
    }

    @Override
    public String getName() {
        return "ACCalendarManager";
    }

    @ReactMethod
    public void mySuperDuperFunction(Promise promise) {
        if (mCalendarInstance != null) {
            mCalendarInstance.mySuperDuperFunction(promise); // <-- Magic
        }
    }
}

and here's how I combine those two together in my Package declaration:

public class RCTACCalendarPackage implements ReactPackage {
    private RCTACCalendarManager mCalManager;

    @Override
    public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
        if (mCalManager == null) {
            mCalManager = new RCTACCalendarManager(reactContext);
        }
        return Arrays.<NativeModule>asList(new RCTACCalendarModule(reactContext, mCalManager));
    }

    @Override
    public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
        if (mCalManager == null) {
            mCalManager = new RCTACCalendarManager(reactContext);
        }
        return Arrays.<ViewManager>asList(mCalManager);
    }
}

It works like a charm.