To add Traffic Layer to your map:

1. Create an instance of the Map object.

2. Set up the map properties.

3. Create an instance of the TrafficLayer and associate it with the created map.

The following example demonstrates how to add TrafficLayer to the map:

public class MapExample extends MapView {
    
    public static void main(String[] args) {
        MapViewOptions options = new MapViewOptions();
        options.setApiKey("<your_google_maps_api_key>");

        MapView mapView = new MapView(options);
        // Setting a ready handler to a MapView object. onMapReady will be called when the map initialization is done and
        // the map object is ready to use. Current implementation of onMapReady customizes the map object.
        mapView.setOnMapReadyHandler(new MapReadyHandler() {
            @Override
            public void onMapReady(MapStatus status) {
                // Check if the map is loaded correctly
                if (status == MapStatus.MAP_STATUS_OK) {
                    // Getting the associated map object
                    final Map map = mapView.getMap();
                    // Creating a map options object
                    MapOptions options = new MapOptions();
                    // Creating a map type control options object
                    MapTypeControlOptions controlOptions = new MapTypeControlOptions();
                    // Changing position of the map type control
                    controlOptions.setPosition(ControlPosition.TOP_RIGHT);
                    // Setting the map type control options
                    options.setMapTypeControlOptions(controlOptions);
                    // Setting the map options
                    map.setOptions(options);
                    // Setting the map center
                    map.setCenter(new LatLng(34.04924594193164, -118.24104309082031));
                    // Setting initial zoom value
                    map.setZoom(13.0);
                    // Enabling the traffic layer on the map
                    new TrafficLayer(map);
                }
            }
        });


        JFrame frame = new JFrame("Map Integration");
        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        frame.add(mapView, BorderLayout.CENTER);
        frame.setSize(700, 500);
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }
}

When you run this example you'll get the following as output: