Thread d = new Thread(new Runnable() {

    @Override
    public void run() {
        SmackConfiguration.setDefaultPacketReplyTimeout(10000);
        XMPPTCPConnectionConfiguration config = XMPPTCPConnectionConfiguration.builder()
                  .setUsernameAndPassword("admin", "password")
                  .setServiceName("192.168.0.200")
                  .setHost("192.168.0.200")
                  .setPort(5223).setSecurityMode(SecurityMode.ifpossible)
                  .build();

        AbstractXMPPConnection conn2 = new XMPPTCPConnection(config);
        try {
            conn2.connect();
            conn2.login();

            Presence presence = new Presence(Presence.Type.unavailable);
            presence.setStatus("Gone fishing");
            // Send the packet (assume we have an XMPPConnection instance called "con").
            conn2.sendStanza(presence);

        } catch (SmackException | IOException | XMPPException e) {
            e.printStackTrace();
            Log.d("TAG", e.toString());
        }

        ChatManager chatmanager = ChatManager.getInstanceFor(conn2);
        Chat newChat = chatmanager.createChat("harsh@192.168.0.200");

        try {
            newChat.sendMessage("Howdy!");
        }
        catch (NotConnectedException e) {
            e.printStackTrace();
        }
    }
});

d.start();

public class NewClientActivity extends Activity {
    EditText etUsername, etPassword;
    Button bSubmit;
    AbstractXMPPConnection mConnection;
    ConnectionListener connectionListener = new ConnectionListener() {
        @Override
        public void connected(XMPPConnection xmppConnection) {
            Log.d("xmpp", "connected");
            try {
                SASLAuthentication.registerSASLMechanism(new SASLMechanism() {
                    @Override
                    protected void authenticateInternal(CallbackHandler callbackHandler) throws SmackException {

                    }

                    @Override
                    protected byte[] getAuthenticationText() throws SmackException {
                        byte[] authcid = toBytes('u0000' + this.authenticationId);
                        byte[] passw = toBytes('u0000' + this.password);
                        return ByteUtils.concact(authcid, passw);
                    }

                    @Override
                    public String getName() {
                        return "PLAIN";
                    }

                    @Override
                    public int getPriority() {
                        return 410;
                    }

                    @Override
                    public void checkIfSuccessfulOrThrow() throws SmackException {

                    }

                    @Override
                    protected SASLMechanism newInstance() {
                        return this;
                    }
                });
                mConnection.login();
            } catch (XMPPException e) {
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        Toast.makeText(NewClientActivity.this, "Incorrect username or password", Toast.LENGTH_LONG).show();
                    }
                });
                e.printStackTrace();
            } catch (SmackException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        @Override
        public void authenticated(XMPPConnection xmppConnection, boolean b) {
            Log.d("xmpp", "authenticated");
            runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    Toast.makeText(NewClientActivity.this,"Logged in successfully...",Toast.LENGTH_LONG ).show();
                }
            });
        }

        @Override
        public void connectionClosed() {
            Log.d("xmpp", "connection closed");
        }

        @Override
        public void connectionClosedOnError(Exception e) {
            Log.d("xmpp", "cononection closed on error");
        }

        @Override
        public void reconnectionSuccessful() {
            Log.d("xmpp", "reconnection successful");
        }

        @Override
        public void reconnectingIn(int i) {
            Log.d("xmpp", "reconnecting in " + i);
        }

        @Override
        public void reconnectionFailed(Exception e) {
            Log.d("xmpp", "reconnection failed");
        }
    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_new_client);
        findViews();
    }

    private void findViews() {
        etUsername = (EditText) findViewById(R.id.etUsername);
        etPassword = (EditText) findViewById(R.id.etPassword);
        bSubmit = (Button) findViewById(R.id.bSubmit);
        bSubmit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String[] params = new String[]{etUsername.getText().toString(), etPassword.getText().toString()};
                new Connect().executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, params);
            }
        });
    }

    class Connect extends AsyncTask<String, Void, Void> {
        @Override
        protected Void doInBackground(String... params) {

            XMPPTCPConnectionConfiguration config = null;
            XMPPTCPConnectionConfiguration.Builder builder = XMPPTCPConnectionConfiguration.builder();
            builder.setServiceName("192.168.1.60").setHost("192.168.1.60")
                    .setDebuggerEnabled(true)
                    .setPort(5222)
                    .setUsernameAndPassword(params[0], params[1])
                    .setSecurityMode(ConnectionConfiguration.SecurityMode.disabled)
                    .setCompressionEnabled(false);
            config = builder.build();

            mConnection = new XMPPTCPConnection(config);
            try {
                //mConnection.setPacketReplyTimeout(10000);
                mConnection.addConnectionListener(connectionListener);
                mConnection.connect();
            } catch (SmackException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            } catch (XMPPException e) {
                e.printStackTrace();
            }
            return null;
        }
    }
}

private class MyLoginTask extends AsyncTask<String, String, String> {
        @Override
        protected String doInBackground(String... params) {
            // Create a connection to the jabber.org server.
            XMPPTCPConnectionConfiguration config = XMPPTCPConnectionConfiguration.builder()
            .setSecurityMode(ConnectionConfiguration.SecurityMode.disabled)
                    .setUsernameAndPassword(USERNAME, PASSWORD)
                    .setHost(HOST)
                    //.setSecurityMode(ConnectionConfiguration.SecurityMode.disabled)
                    .setServiceName(HOST)
                    .setDebuggerEnabled(true) // to view what's happening in detail
                    .build();

            AbstractXMPPConnection conn1 = new XMPPTCPConnection(config);
            conn1.setPacketReplyTimeout(30000);
            try {
                conn1.connect();
                if(conn1.isConnected()) {
                    Log.w("app", "conn done");
                }
                conn1.login();

                if(conn1.isAuthenticated()) {
                    Log.w("app", "Auth done");
                }
            }
            catch (Exception e) {
                Log.w("app", e.toString());
            }

            return "";
        }


        @Override
        protected void onPostExecute(String result) {
        }

    }

public static void main(String[] args) throws IOException, XMPPException, SmackException, NoSuchAlgorithmException {
    XMPPTCPConnectionConfiguration config = XMPPTCPConnectionConfiguration.builder()
            .setServiceName("olx.intr")
            .setDebuggerEnabled(true)
            .setSecurityMode(ConnectionConfiguration.SecurityMode.disabled)
            .setHost("10.2.2.107")
            .setPort(5222)
            .setUsernameAndPassword("dhiren","olxindia")
            .build();

    AbstractXMPPConnection conn2 = new XMPPTCPConnection(config);
    conn2.connect();
    SASLMechanism mechanism = new SASLDigestMD5Mechanism();
    SASLAuthentication.registerSASLMechanism(mechanism);
    SASLAuthentication.blacklistSASLMechanism("SCRAM-SHA-1");
    SASLAuthentication.unBlacklistSASLMechanism("DIGEST-MD5");
    try {
        conn2.login();
    }catch (Exception e){
        e.printStackTrace();
    }
    boolean authenticated = conn2.isAuthenticated();
    System.out.println(authenticated);
}