username = "admin";
        password = "admin";
        port = "5222";
        serviceName = "davids-macbook-pro.local";
        host = "192.168.20.8";

     config = XMPPTCPConnectionConfiguration.builder()
                    .setUsernameAndPassword(username, password)
                    .setHost(host)
                    .setSecurityMode(ConnectionConfiguration.SecurityMode.disabled)
                    .setServiceName(serviceName)
                    .setPort(Integer.parseInt(port))
                    .build();

            connection = new XMPPTCPConnection(config);
            try {
                connection.connect();
                connection.login();
            } catch (SmackException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            } catch (XMPPException e) {
                e.printStackTrace();
            }

Roster roster = Roster.getInstanceFor(connection);
Collection<RosterEntry> entries = roster.getEntries();
Log.i("entry", entries);
for (RosterEntry entry : entries) {

}