Properly leave a chat room in smack Android -

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in appilcation using below method leave chat room.

 public void leavechatroom(string username) {     log.i("xmpp chat client", "user left chat room ");     if(groupchat != null && groupchat.isjoined())     {         try {             presence leavepresence = new presence(presence.type.unavailable);             leavepresence.setto("groupchat@conference.xxx/" + username);             connection.sendpacket(leavepresence);             groupchat.leave();           } catch (notconnectedexception e) {             e.printstacktrace();         }     }  }

and check whether user joined or not,

public boolean isjoinedgroup(string username)     {         boolean isconnected = false;         if(groupchat != null && groupchat.isjoined())         {             isconnected = true;             log.i("xmpp chat client", "joined true");         }         return isconnected; }

this works fine if there successful chat server connection. in cases chat server connection loses. in situation, have make user leave chat room , join again automatically. when lose chat server connection, reconnect chat server , call leavechatroom method , join group method together. getting notconnectedexception in line groupchat.leave(); , when check joined status,it returns true. when checked openfire admin panel, there no user in groupchat occupants list. how can remove user groupchat in situation?


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