Bonjour using jmDNS on Processing Android Mode

BonjourAndroid.pde

import javax.jmdns.*;
import java.util.Map;
import java.net.InetAddress;
import java.util.Locale;
import android.net.wifi.WifiManager.MulticastLock;
import android.net.wifi.WifiManager;
import android.net.wifi.WifiInfo;
import android.app.Fragment;
import android.content.Context;
import java.net.UnknownHostException;


  Context context;
android.net.wifi.WifiManager.MulticastLock lock;

SampleListener ds;

void setup() {
  fullScreen(P2D);
  
  context = getActivity();
  android.net.wifi.WifiManager wifi = (android.net.wifi.WifiManager) context.getSystemService(android.content.Context.WIFI_SERVICE);

 
  lock = wifi.createMulticastLock(getClass().getSimpleName());

  lock.setReferenceCounted(false);
  
  try {
    InetAddress addr = getLocalIpAddress();
    String hostname = addr.getHostName();
    lock.acquire();

    ds = new SampleListener();
    String bonjourServiceType = "_http._tcp.local.";
    JmDNS bonjourService = null;

    bonjourService = JmDNS.create(addr, hostname);

    bonjourService.addServiceListener(bonjourServiceType, ds);
  } 
  catch(Exception ex) {
    println(ex);
  }
}
static String message = "Status...\n";
void draw() {

  background(255);
  fill(0);
  text(message, 10, 10, width - 10, height - 10);
}

static class SampleListener implements javax.jmdns.ServiceListener {

  public void serviceAdded(ServiceEvent event) {
    message += "Service added   : " + event.getName() + "." + event.getType();
  }


  public void serviceRemoved(ServiceEvent event) {
    message += "Service removed : " + event.getName() + "." + event.getType();
  }


  public void serviceResolved(ServiceEvent event) {
    message += "Service resolved: " + event.getInfo();
  }
}

private InetAddress getLocalIpAddress() {
  WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
  WifiInfo wifiInfo = wifiManager.getConnectionInfo();
  int ipAddress = wifiInfo.getIpAddress();
  InetAddress address = null;
  try {
    address = InetAddress.getByName(String.format(Locale.ENGLISH, 
      "%d.%d.%d.%d", (ipAddress & 0xff), (ipAddress >> 8 & 0xff), (ipAddress >> 16 & 0xff), (ipAddress >> 24 & 0xff)));
  } 
  catch (UnknownHostException e) {
    e.printStackTrace();
  }
  return address;
}