android - Unable to send and receive XMPP messages -

i trying send , recieve xmpp messages through smack library in android. failed same. connected server , online users also. unable send or receive text messages. please suggest solution regarding same.

code: xmpp establish connection:

 try {               connectionconfiguration config = new connectionconfiguration("chat.spectratech.in");             config.settruststorepath("/system/etc/security/cacerts.bks");             if (build.version.sdk_int >= build.version_codes.ice_cream_sandwich) {                 config.settruststoretype("androidcastore");                 config.settruststorepassword(null);                 config.settruststorepath(null);             } else {                 config.settruststoretype("bks");                 string path = system.getproperty("javax.net.ssl.truststore");                 if (path == null)                     path = system.getproperty("java.home") + file.separator + "etc"                         + file.separator + "security" + file.separator                         + "cacerts.bks";                 config.settruststorepath(path);             }             mxmppconnection = new xmppconnection(config);             mxmppconnection.connect();             mxmppconnection.login(username, password);              chatapp.setmxmppconnection(mxmppconnection);         }         catch (final xmppexception e) {             log.e(tag, "could not connect xmpp server.", e);             return;         }          if (!mxmppconnection.isconnected()) {             log.e(tag, "could not connect xmpp server.");             return;         }          log.i(tag, "yey! we're connected xmpp server!");         toast.maketext(this, "connected", toast.length_short).show();         mxmppconnection.getchatmanager().addchatlistener(new chatmanagerlistener() {              @override             public void chatcreated(final chat chat, final boolean createdlocally) {                 if (!createdlocally) {                     chat.addmessagelistener(new mymessagelistener());                 }             }         }); 

send , receive messages:

if (app.getmxmppconnection() != null) {             // add packet listener messages sent             packetfilter filter = new messagetypefilter(message.type.chat);             app.getmxmppconnection().addpacketlistener(new packetlistener() {                 @override                 public void processpacket(packet packet) {                     message message = (message) packet;                     if (message.getbody() != null) {                         string fromname = stringutils.parsebareaddress(message                                 .getfrom());                         log.i("xmppchatdemoactivity", "text recieved "                                 + message.getbody() + " " + fromname);                         msgs.add(fromname + ":  " + message.getbody());                         //messages.add(fromname + ":");                         //messages.add(message.getbody());                         // add incoming message list view                         mhandler.post(new runnable() {                             public void run() {                                 adapter.notifydatasetchanged();                             }                         });                     }                 }             }, filter);         }          btnsend.setonclicklistener(new view.onclicklistener() {              @override             public void onclick(view arg0) {                 string text = edmsgs.gettext().tostring();                 message msg = new message(to, message.type.chat);                 msg.setbody(text);                  if(app.getmxmppconnection()!=null){                     app.getmxmppconnection().sendpacket(msg);                     msgs.add(text);                     adapter.notifydatasetchanged();                 }              }         }); 

first need login server.

link class message

sending messages: use xmppconnection class send sendpacket.

string message = "hello friend"; message msg = new message(touserid, message.type.chat);                     msg.setbody(message);                     connection.sendpacket(msg); 

receiving messages:

i use of packetfilter class recive chat message. use of xmppconnection class add listner when message comming.

packetfilter chatfilter = new messagetypefilter(message.type.chat);      connection.addpacketlistener(chatpacketlistener, chatfilter);             packetlistener chatpacketlistener = new packetlistener() {          @override         public void processpacket(packet packet) {             try {                  message message = (message) packet;                 string body = message.getbody();                 string = stringutils.parsebareaddress(message.getfrom());              } catch (exception e) {}         }     };       

i hope you.