android - some line of code not getting executed, when doing facebook post functionality -

guys want post on facebook, using facebook sdk, line of code not executed. pops-up dialog login, when login, sessionevents.authlistener listener should listen login success. not listening. , every time when start app ask login.
below code.

public class facebookconnector { private facebook mfacebook; private authlistener msessionlistener; private context context; private string[] permissions; private activity activity;  public facebookconnector(string appid, activity activity, context context, string[] permissions) {      this.mfacebook = new facebook(appid);     sessionstore.restore(mfacebook, context);     sessionevents.addauthlistener(msessionlistener);     sessionevents.addlogoutlistener((logoutlistener) msessionlistener);     this.context = context;     this.permissions = permissions;     this.activity = activity;  }  public void postmessageonwall(string msg) {     if (mfacebook.issessionvalid()) {         bundle parameters = new bundle();         parameters.putstring("message", msg);         try {             string response = mfacebook.request("me/feed", parameters, "post");             system.out.println(response);         } catch (ioexception e) {             e.printstacktrace();         }     } else {         login();     } }  public void login() {     if (!mfacebook.issessionvalid()) {         mfacebook.authorize(this.activity, this.permissions, facebook.force_dialog_auth, new logindialoglistener());     } }  public facebook getfacebook() {     return mfacebook; } } 

and in activity class....

private void onfacebookbtnclicked() {     if (facebookconnector.getfacebook().issessionvalid()) {         postmessageinthread();     } else {         sessionevents.authlistener listener = new sessionevents.authlistener() {             @override             public void onauthsucceed() {                 postmessageinthread();             }              @override             public void onauthfail(string error) {              }         };         sessionevents.addauthlistener(listener);         facebookconnector.login();     } } private void postmessageinthread() {     thread t = new thread() {         public void run() {             try {                 facebookconnector.postmessageonwall(mquote.getquotetext() + "\n" + mquote.getauthorname());                 mfacebookhandler.post(mupdatefacebooknotification);             } catch (exception ex) {                 log.e("facebook", "error sending msg", ex);             }         }     };     t.start(); }  final runnable mupdatefacebooknotification = new runnable() {     public void run() {         toast.maketext(getbasecontext(), "facebook updated !", toast.length_long).show();     } }; 

in postmessageinthread method not executing, don't know why

set permission public

private string[] permissions = new string[]      { "publish_stream", "read_stream", "offline_access" }; 

this check session exist if yes direct update if not ask user permission update on wall.