XMPPFramework Swift fetch objects always null -


hi have problem xmppframework using swift, 0 element when fetch objects

func fetchedresultscontroller() -> nsfetchedresultscontroller? {     if fetchedresultscontrollervar == nil {          let moc = managedobjectcontext_roster() nsmanagedobjectcontext?         let entity = nsentitydescription.entityforname("xmppusercoredatastorageobject", inmanagedobjectcontext: moc!)          let sd1 = nssortdescriptor(key: "sectionnum", ascending: true)         let sd2 = nssortdescriptor(key: "displayname", ascending: true)          let sortdescriptors = [sd1, sd2]         let fetchrequest = nsfetchrequest()          fetchrequest.entity = entity         fetchrequest.sortdescriptors = sortdescriptors         fetchrequest.fetchbatchsize = 10          fetchedresultscontrollervar = nsfetchedresultscontroller(fetchrequest: fetchrequest, managedobjectcontext: moc!, sectionnamekeypath: "sectionnum", cachename: nil)         fetchedresultscontrollervar?.delegate = self          {             try fetchedresultscontrollervar!.performfetch()          } catch let error nserror {             print("error: \(error.localizeddescription)")             abort()         }         //  if fetchedresultscontrollervar?.performfetch() == nil {         //handle fetch error         //}     }      return fetchedresultscontrollervar! }

i have activate in setup using code 

xmppstreams = externalstream      xmpprosterstorage = xmpprostercoredatastorage()     xmpproster = xmpproster(rosterstorage: xmpprosterstorage)      xmpproster!.autofetchroster = true;     xmpproster!.autoacceptknownpresencesubscriptionrequests = true;      xmpproster!.adddelegate(self, delegatequeue: dispatch_get_main_queue())     xmpproster!.activate(xmppstreams)

but when print in delegate functoin fetchedresultcontrollervar.fetchedobjects return 0,but jidlist can rosterlists.

func xmpprosterdidendpopulating(sender: xmpproster?){     var jidlist = xmpprosterstorage!.jidsforxmppstream(xmppstreams)     fetchedresultscontrollervar!.fetchedobjects      print("list=\(jidlist)")  }

did miss something? must init xmppusercoredatastorageobject in class? thanks

you have make sure connected xmpp before fetching roster, if use xmppcoredata.

i made swift wrapper around xmppframework, simplify development of basic chat app, , show how fetch roster.

you can check out here.


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