How to list all connected nodes in android application (using WIFI)?

Question

It is possible to list all connected nodes in my android application(machines connected to a LAN using wifi)?.

Answer 1

You can achieve it by following code,

this code is useful in java so not sure but it will work for android also.

public void getAllNodes(String subnet)
{

      int pingTime=1000;
      String nodeName = "";
      for (int i=1;i<254;i++)
      {
           String host=subnet + "." + i;
            if (InetAddress.getByName(host).isReachable(pingTime))
            {
                 nodeName += host;
            }
      }
}

Just call this method like getAllNodes("192.168.0");

Answer 2

Try This One...

This will help you

to get all kind of net connections...

 public boolean checkNet() 
 {
   ConnectivityManager cm = (ConnectivityManager) getApplicationContext().getSystemService(Context.CONNECTIVITY_SERVICE);

    NetworkInfo netWifi = cm.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
    if (netWifi != null && netWifi.isConnected()) {
      return true;
    }

    NetworkInfo netMob = cm.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
    if (netMob != null && netMob.isConnected()) {
      return true;
    }

    NetworkInfo netActive = cm.getActiveNetworkInfo();
    if (netActive != null && netActive.isConnected()) {
      return true;
    }

    return false;
  }