Java smack / Android asmack RosterListener?

You implement a RosterListener and make use of the presenceChanged() method. Here's sample code exactly as it appears in the Smack documentation 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); } }) Note that the JavaDoc suggests not using the presence received in the change event but checking for the best presence available each time: To get the current "best presence" for a user after the presence update, query the roster: String user = presence.getFrom(); Presence bestPresence = roster. GetPresence(user) That will return the presence value for the user with the highest priority and availability.

You implement a RosterListener and make use of the presenceChanged() method. Here's sample code exactly as it appears in the Smack documentation. 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); } }); Note that the JavaDoc suggests not using the presence received in the change event but checking for the best presence available each time: To get the current "best presence" for a user after the presence update, query the roster: String user = presence.getFrom(); Presence bestPresence = roster. GetPresence(user); That will return the presence value for the user with the highest priority and availability.

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