AnsweredAssumed Answered

Smack connection shutdown in Android

Question asked by Robin on Apr 16, 2016

Hello everyone!


I'm using Smack 4.1.7 in my Android app, and I can't figure out, how to properly shutdown an XMPPTCPConnection when exiting (pressing back from my main activity). Doing conn.disconnect() closes Smack Packet Writer and Smack Packet Reader daemon threads, but Smack-Ping, Smack-Incoming Processor, Smack-Single Threaded Executor and Smack-Remove Callbacks daemon threads remain running. When I launch my app again and establish the connection, another pack of these daemon threads is created, and so on.


Trying to debug, I ended up with this test code in my IntentService:




         XMPPTCPConnection conn = new XMPPTCPConnection(


            .setHost("") //$NON-NLS-1$



               "project #", //$NON-NLS-1$

               "api key") //$NON-NLS-1$


            .setServiceName("") //$NON-NLS-1$







         conn = null;



      catch (Exception e)


         // Something.



As far as I understand, conn is eligible for finalization, but finalize() is not invoked. For now, I use the solution, given in Not closing smack threads by disconnect (4.1.0-alpha1-SNAPSHOT), but I think there should be a better way.


So, what's the proper way of closing a connection?


Any help would be greatly appreciated.