Android repeating alarm not repeating correctly -

i have alarm wanting repeat around every 5 minutes. testing purposes, have set repeat once every 5 seconds instead, such:

alarmmanager alarmmanager = (alarmmanager)getactivity().getsystemservice(getactivity().alarm_service);         intent intent = new intent(getactivity(), coordinatealarmreceiver.class);         pendingintent pendingintent = pendingintent.getservice(getactivity(), 1, intent, 0);         int repeatseconds = 5;         alarmmanager.setinexactrepeating(alarmmanager.rtc_wakeup, system.currenttimemillis(),                 repeatseconds * 1000, pendingintent); 

and receiving intentservice prints log statement when receives alarm. however, fires around once every minute , half instead of once every 5 seconds, set incorrectly? have tried using setrepeating() instead of setinexactrepeating() same results.

here alarm receiver:

public class coordinatealarmreceiver extends intentservice {      public coordinatealarmreceiver(){         super("coordinatealarmreceiver");     }      /*     alarm received, new contacts shows notification      */     @override     protected void onhandleintent(intent intent) {         mylog.i("coordinate alarm received");          //new getnewcontactstask(this).execute();     } } 

i had similar problem in needed service fired every 15 seconds... did following.

1. i have class extends application called myapplication. class holds instance of alarm manager.

   public class myapplication extends application {     private myalarmmanager alarmmgr;      @override     public void oncreate() {         log.d(tag, "myapplication oncreate");         super.oncreate();         log.d(tag, "initing alarmmgr ...");         alarmmgr = new myalarmmanager(this);     }      public myalarmmanager getalarmmanager(){         return alarmmgr;     } } 

   2. an alarmmanager called myalarmmanager creates, starts & stops alarms and now sets next alarm 1 service.

      public class myalarmmanager {     private myapplication mapp;     private intent intent;     private pendingintent pendingintent;     private alarmmanager alarmmgr;     private static final long frequency = 15000;      public myalarmmanager(context context) {         mapp = (myapplication) context;         // android alarm service         alarmmgr = (alarmmanager) context.getsystemservice(context.alarm_service);          // service fired every 15 seconds         intent = new intent(context, myservice.class);         pendingintent = pendingintent.getservice(context, 1, intent, pendingintent.flag_update_current);         setnextalarm();     }      public void setnextalarm(){         log.d(tag, "setting next alarm...");         alarmmgr.set(alarmmanager.rtc_wakeup, (system.currenttimemillis() + frequency), pendingintent);     }       private void stopalarms(){         log.d(tag, "stopping alarms");         alarmmgr.cancel(pendingintent);     }  } 

   3. when service fired instance of myapplication, alarmmanager , schedule next alarm.

      public class myservice extends service {     myapplication mapp;      @override     public int onstartcommand(intent intent, int flags, int startid) {         log.d(tag, "in onstartcommand");         // init app reference if needed         if (mapp == null) {             log.d(tag, "app null. creating now...");             mapp = (myapplication) getapplicationcontext();         }          // schedule next zone check         mapp.getalarmmgr().setnextalarm();         // custom functionality ...     }