http://www.igniterealtime.org/builds/smack/docs/latest/documentation/roster.html
Roster roster = con.getRoster();
roster.addRosterListener(new RosterListener() {
// Ignored events public void entriesAdded(Collection addresses) {}
public void entriesDeleted(Collection addresses) {}
public void entriesUpdated(Collection addresses) {}
public void presenceChanged(Presence presence) {
System.out.println("Presence changed: " + presence.getFrom() + " " + presence);
}
});
when I run this tells me:
user1 Error
user2 Error
…
userx Error
then change the status of user1, it works fine, why?
why at first I get error?
Presence changed: test1@delive/Smack available
Presence changed: test1@delive/Smack available: away (Online, Programmatically!)
Presence changed: test1@delive/Smack unavailable