android xmpp 删除好友列表,android - Delete a Friend from Roster in Xmpp/Openfire - Stack Overflow...

In my chat application. I am using smack library , with the help of Subscription Management I have done the part of adding a friend to the Roster of a particular person.

Now I want that when some person denies the friend request, I send a UNSUBSCRIBE PACKET to the other user for the same, the friend is not deleted from the roster of the other user. It simply shows NONE subscription.

CODE:

Presence unsubscribe = new Presence(Presence.Type.unsubscribe);

unsubscribe.setTo([e-mail]);

connection.sendPacket(unsubscribe);

How can I delete the user from the Roster of the friend. I can do it from openfire portal but don't know how to do it from code.