aSmack - connecting to XMPP server and put listeners

// Create connection object first // refer to http://codepad.co/s/6fb674 to create config XMPPConnection.DEBUG_ENABLED = true; XMPPConnection connection = new XMPPConnection(config); // before connection established, we better put some listener // like below IncomingPacketListener incomingPacketListener = new IncomingPacketListener(); OutgoingPacketListener outgoingPacketListener = new OutgoingPacketListener(); connection.addPacketListener(incomingPacketListener, new PacketFilter() { @Override public boolean accept(Packet packet) { return true; // ensure to listen all kind of incoming packet } }); connection.addPacketInterceptor(outgoingPacketListener, new PacketFilter() { @Override public boolean accept(Packet packet) { return true; // ensure to listen all kind of outgoing packet } }); connection.addConnectionListener(connectionListener); // Connect it to server try { smackAndroid = SmackAndroid.init(context); } catch(IllegalStateException e){ Log.e("Connecting", "IllegalStateException: "+e.getMessage()); } try { connection.connect(); // connection established here } catch (XMPPException e) { Log.e("Connecting", "XMPPException: "+e.getMessage()); } catch (IllegalStateException e) { Log.e("Connecting", "IllegalStateException: "+e.getMessage()); } catch (NullPointerException e) { Log.e("Connecting", "NullPointerException: "+e.getMessage()); } catch (Exception e) { Log.e("Connecting", "Exception: "+e.getMessage()); } /* DECLARE classes AND objects BELOW SOMEWHERE*/ /* IncomingPacketListener class defined below */ public class IncomingPacketListener implements PacketListener { @Override public void processPacket(Packet packet) { Log.i("IncomingPacketListener.processPacket: ", "--> "+packet.toXML()); // Todo do something else with the message } } /* OutgoingPacketListener class defined below */ public class OutgoingPacketListener implements PacketInterceptor { @Override public void interceptPacket(Packet packet) { Log.d("OutgoingPacketListener.interceptPacket", "<-- "+packet.toXML()); // Todo do something else with the message } } /* ConnectionListener object is simply instance of ConnectionListener */ ConnectionListener connectionListener = new ConnectionListener() { @Override public void connectionClosed() { Log.e("ConnectionListener.connectionClosed", "Connection closed."); } @Override public void connectionClosedOnError(Exception e) { Log.e("ConnectionListener.connectionClosedOnError", "Connection closed on error: "+e.getMessage()); } @Override public void reconnectingIn(int i) { Log.i("ConnectionListener.reconnectingIn", "Reconnecting in " + i + " seconds."); } @Override public void reconnectionSuccessful() { Log.i("ConnectionListener.reconnectionSuccessful", "Reconnection successful."); } @Override public void reconnectionFailed(Exception e) { Log.e("ConnectionListener.reconnectionFailed", "Reconnection failed: "+e.getMessage()); } };