ios - CloudKit: query subscriptions request -

i'm working in app using cloudkit , i'm creating subscription cloudkit. here code:

cksubscription *subscription = [[cksubscription alloc]                                 initwithrecordtype:recordtype                                 predicate:predicate                                 options:cksubscriptionoptionsfiresonrecordcreation |                                 cksubscriptionoptionsfiresonrecordupdate |                                 cksubscriptionoptionsfiresonrecorddeletion];   cknotificationinfo *notificationinfo = [cknotificationinfo new]; notificationinfo.shouldsendcontentavailable = yes; subscription.notificationinfo = notificationinfo; notificationinfo.shouldbadge = yes; ckdatabase *publicdatabase = [container publicclouddatabase]; [publicdatabase savesubscription:subscription                completionhandler:^(cksubscription *subscription, nserror *error) {                    if (!error)                    {                        nslog(@"subscription success!");                    }                    else                    {                        nslog(@"subscription  error%@", error.localizeddescription);                    }                 }]; 

my question guys. how can query or validate user subscription cloudkit ?

a subscription nothing more ckpredicate active on server side instead of in app. if want validate if predicate correct, execute query , see back.

make sure application diffinishlaunchingwithoptions has following lines of code:

    application.registerusernotificationsettings(uiusernotificationsettings(fortypes: .alert | .badge | .sound, categories: nil))     application.registerforremotenotifications() 

also make sure handle incoming notifications adding this:

func application(application: uiapplication, didreceiveremotenotification userinfo: [nsobject : anyobject]) {     nslog("push received.. should handled..") }