xmpp/smack判断指定好有是否在线
Roster roster = LoginToolUtil.getInstance().getConnection().getRoster();
Presence presence = roster.getPresence("user@domin");
if (presence.getType() == Presence.Type.available) {//离线
Log.v(TAG, "User is online");
给你个例子 连接类 import org.jivesoftware.smack.ConnectionConfiguration; import org.jivesoftware.smack.XMPPConnection; import org.jivesoftware.smack.XMPPException; public class Conn { private static XMPPConnection connection = ...