Clicking and Highlighting Polylines

AddPolylinesToMap.java

private void addPolylinesToMap(final DirectionsResult result){
    new Handler(Looper.getMainLooper()).post(new Runnable() {
        @Override
        public void run() {
            Log.d(TAG, "run: result routes: " + result.routes.length);
            if(mPolyLinesData.size() > 0){
                for(PolylineData polylineData: mPolyLinesData){
                    polylineData.getPolyline().remove();
                }
                mPolyLinesData.clear();
                mPolyLinesData = new ArrayList<>();
            }

            for(DirectionsRoute route: result.routes){
                Log.d(TAG, "run: leg: " + route.legs[0].toString());
                List<com.google.maps.model.LatLng> decodedPath = PolylineEncoding.decode(route.overviewPolyline.getEncodedPath());

                List<LatLng> newDecodedPath = new ArrayList<>();

                // This loops through all the LatLng coordinates of ONE polyline.
                for(com.google.maps.model.LatLng latLng: decodedPath){

//                        Log.d(TAG, "run: latlng: " + latLng.toString());

                    newDecodedPath.add(new LatLng(
                            latLng.lat,
                            latLng.lng
                    ));
                }
                Polyline polyline = mGoogleMap.addPolyline(new PolylineOptions().addAll(newDecodedPath));
                polyline.setColor(ContextCompat.getColor(getActivity(), R.color.darkGrey));
                polyline.setClickable(true);
                mPolyLinesData.add(new PolylineData(polyline, route.legs[0]));

            }
        }
    });
}

OnPolylineClick.java

@Override
public void onPolylineClick(Polyline polyline) {

    for(PolylineData polylineData: mPolyLinesData){
        Log.d(TAG, "onPolylineClick: toString: " + polylineData.toString());
        if(polyline.getId().equals(polylineData.getPolyline().getId())){
            polylineData.getPolyline().setColor(ContextCompat.getColor(getActivity(), R.color.blue1));
            polylineData.getPolyline().setZIndex(1);
        }
        else{
            polylineData.getPolyline().setColor(ContextCompat.getColor(getActivity(), R.color.darkGrey));
            polylineData.getPolyline().setZIndex(0);
        }
    }
}

PolylineData.java

import com.google.android.gms.maps.model.Polyline;
import com.google.maps.model.DirectionsLeg;

public class PolylineData {

    private Polyline polyline;
    private DirectionsLeg leg;

    public PolylineData(Polyline polyline, DirectionsLeg leg) {
        this.polyline = polyline;
        this.leg = leg;
    }

    public Polyline getPolyline() {
        return polyline;
    }

    public void setPolyline(Polyline polyline) {
        this.polyline = polyline;
    }

    public DirectionsLeg getLeg() {
        return leg;
    }

    public void setLeg(DirectionsLeg leg) {
        this.leg = leg;
    }

    @Override
    public String toString() {
        return "PolylineData{" +
                "polyline=" + polyline +
                ", leg=" + leg +
                '}';
    }
}