Best way to keepAlive Connection With Xmpp Server in Android

Question

I am working on chat application and using ejabberd saas edition as xmpp server for it. I am using smack library ver-4.2.3. To keep connection alive I am using ping manager. Here is the code I am using:

ReconnectionManager.getInstanceFor(AppController.mXmpptcpConnection).enableAutomaticReconnection();
ServerPingWithAlarmManager.onCreate(context);
ServerPingWithAlarmManager.getInstanceFor(AppController.mXmpptcpConnection).setEnabled(true);
ReconnectionManager.setEnabledPerDefault(true);

//int i = 1;
// PingManager.setDefaultPingInterval(i);
PingManager.getInstanceFor(AppController.mXmpptcpConnection).setPingInterval(300);

I am using sticky-service also for connection, but when I keep my application open (ideal-state) for 15-20 mins then the connection is lost, so I am using ping manger to resolve this issue.

Is there any other better way of doing it or ping manager is the only option?

Answer 1

Insted of pinging chat server constantly, you better to use ConnectionListener() in smack library. You need to use something like this:

XMPPTCPConnection connection;
// initialize your connection

// handle the connection
connection.addConnectionListener(new ConnectionListener() {
      @Override 
      public void connected(XMPPConnection connection) {

      }

      @Override 
      public void authenticated(XMPPConnection connection, boolean resumed) {

      }

      @Override 
      public void connectionClosed() {
        // when the connection is closed, try to reconnect to the server.
      }

      @Override 
      public void connectionClosedOnError(Exception e) {
        // when the connection is closed, try to reconnect to the server.
      }

      @Override 
      public void reconnectionSuccessful() {

      }

      @Override 
      public void reconnectingIn(int seconds) {

      }

      @Override 
      public void reconnectionFailed(Exception e) {
        // do something here, did you want to reconnect or send the error message?
      }
    });

Answer 2

Best way to keep the alive connection with XMPP server you should reconnect after every network change.

Like this:

public class NetworkStateChangeReceiver extends BroadcastReceiver {

private Context context;
private static NetworkStateChangeListener mListener;

@Override
public void onReceive(Context context, Intent intent) {

this.context = context;
try {
if (!ApplicationHelper.isInternetOn(context)) {
if (mListener != null) {
mListener.OnInternetStateOff();
}
return;
} else {
XMPPTCPConnection xmpptcpConnection = XmppConnectionHelper.getConnection();
if(!StringHelper.isNullOrEmpty(new SessionManager(context).getAuthenticationToken())) {
Intent XmppConnectionServicesIntent = new Intent(context, XmppConnectionServices.class);
context.stopService(XmppConnectionServicesIntent);
context.startService(XmppConnectionServicesIntent);
}
}

} catch (Exception e) {
e.printStackTrace();
}
}

//to initialize NetworkStateChangeListener because null pointer exception occurred
public static void setNetworkStateChangeListener(NetworkStateChangeListener listener) {
mListener = listener;
}

}