I wonder how to confirm a request of adding friends.
As I know now ,
roster = Roster.getInstanceFor(con);
roster.setSubscriptionMode(Roster.SubscriptionMode.manual);
roster.createEntry(targetUser, nickname, new String[] {“friends”});
will create a roster in the database, and send a stanza request to the targetUser.
And my stanza listener is as follows:
StanzaListener callback = new StanzaListener() {
@Override
public void processPacket(Stanza stanza) throws NotConnectedException {
// TODO Auto-generated method stub
String head = con.getUser() + " : ";
System.out.println(head + “Got the presence stanza”);
Presence subscribed = new Presence(Presence.Type.subscribed);
subscribed.setTo(stanza.getFrom());
System.out.println(head + subscribed.getFrom());
subscribed.setFrom(stanza.getTo());
con.sendStanza(subscribed);
System.out.println(head + “Subscribed sent”);
if( ! roster.contains(stanza.getFrom())) {
System.out.println(head + “Friend added.”);
addFriend(stanza.getFrom(),“computer”);
}
} else {
System.out.println(head + "Subscribed received from " + stanza.getFrom());
if(roster.contains(stanza.getFrom())) {
System.out.println(head + “OK”);
}
}
System.out.println(head + “-------------------------”);
}
};
It does not work, I wonder when the targetUser receives the stanza request , how to send a callback presence(or something else) to confirm or approve or agree?
How to add a friend?