android - widget AlarmManager repeating too fast -

i have widget shows data usage, have created preferenceactivity user can choose various update frequencies.. chosen freq value sharedpreferences , start alarm weird result. here appwidgetprovider:

private static pendingintent pendingintent = null; ... public void onreceive(context context, intent intent) {     log.d("tag", "receive");     super.onreceive(context, intent);      if (clock_widget_update.equals(intent.getaction())) {         componentname thisappwidget = new componentname(context.getpackagename(), getclass().getname());         appwidgetmanager appwidgetmanager = appwidgetmanager.getinstance(context);         int ids[] = appwidgetmanager.getappwidgetids(thisappwidget);         (int appwidgetid : ids) {             updateappwidget(context, appwidgetmanager, appwidgetid);          }     } }  @override public void onupdate(context context, appwidgetmanager appwidgetmanager, int[] appwidgetids) {     log.d("tag", "update");     super.onupdate(context, appwidgetmanager, appwidgetids);      (int = 0; < appwidgetids.length; i++) {         int appwidgetid = appwidgetids[i];          updateappwidget(context, appwidgetmanager, appwidgetid);     } }  public static void updateappwidget(context context, appwidgetmanager appwidgetmanager, int appwidgetid) {      // starting timer     alarmmanager alarmmanager = (alarmmanager) context.getsystemservice(context.alarm_service);     alarmmanager.cancel(pendingintent);      intent intent = new intent(clock_widget_update);     pendingintent = pendingintent.getbroadcast(context, 0, intent, pendingintent.flag_update_current);       sharedpreferences prefs = context.getsharedpreferences(integer.tostring(appwidgetid), context.mode_private);     int updatefrequencymin = integer.parseint(prefs.getstring(key_update_freq, default_update_freq));     log.d("tag", "update freq: " + updatefrequencymin);     long updatefrequencymillis = updatefrequencymin * 60 * 1000;     // alarmmanager.cancel(pendingintent);      alarmmanager.setinexactrepeating(alarmmanager.rtc, system.currenttimemillis(), updatefrequencymillis,             pendingintent);      ....     appwidgetmanager.updateappwidget(appwidgetid, view); }  public void ondisabled(context context) {      alarmmanager m = (alarmmanager) context.getsystemservice(context.alarm_service);     m.cancel(pendingintent); } 

if set update frequency 5 minutes inexactrepeating, log:

08-18 15:30:17.902: d/tag(23624): receive 08-18 15:30:18.122: d/tag(23624): receive 08-18 15:30:18.122: d/tag(23624): update 08-18 15:30:18.122: d/tag(23624): update freq: 60 08-18 15:30:22.582: d/tag(23624): receive 08-18 15:30:22.602: d/tag(23624): update freq: 60 08-18 15:30:33.272: d/tag(23624): receive 08-18 15:30:33.282: d/tag(23624): update freq: 60 08-18 15:30:39.692: d/tag(23624): receive  08-18 15:30:39.692: d/tag(23624): update freq: 60 08-18 15:31:33.292: d/tag(23624): receive <--- have chosen freq 08-18 15:31:33.292: d/tag(23624): update freq: 5 08-18 15:31:39.962: d/tag(23624): receive 08-18 15:31:39.962: d/tag(23624): update freq: 5 

i don't know why onreceive , onupdate called multiple times when on configuration activity.

with setrepeat method worse can see timestamps:

08-18 15:38:59.992: d/tag(24011): receive 08-18 15:39:00.242: d/tag(24011): receive 08-18 15:39:00.242: d/tag(24011): update 08-18 15:39:00.252: d/tag(24011): update freq: 60 08-18 15:39:00.442: d/tag(24011): receive 08-18 15:39:00.442: d/tag(24011): update freq: 60 08-18 15:39:00.562: d/tag(24011): receive 08-18 15:39:00.562: d/tag(24011): update freq: 60 08-18 15:39:00.642: d/tag(24011): receive 08-18 15:39:00.642: d/tag(24011): update freq: 60 08-18 15:39:00.652: d/tag(24011): receive 08-18 15:39:00.652: d/tag(24011): update freq: 60 08-18 15:39:00.662: d/tag(24011): receive 08-18 15:39:00.662: d/tag(24011): update freq: 60 

and finally, preference activity:

public class datastatwidgetconfigure extends preferenceactivity {     private int widgetid;      @suppresswarnings("deprecation")     @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);          bundle extras = getintent().getextras();         if (extras != null) {              widgetid = extras.getint(appwidgetmanager.extra_appwidget_id,     appwidgetmanager.invalid_appwidget_id);             log.d("meeegy", integer.tostring(widgetid));             getpreferencemanager().setsharedpreferencesname(integer.tostring(widgetid));             addpreferencesfromresource(r.xml.prefs);         }      }      @override     public void onbackpressed() {         intent resultvalue = new intent();         resultvalue.putextra(appwidgetmanager.extra_appwidget_id, widgetid);         setresult(result_ok, resultvalue);         finish();     } } 

from see in code, never cancel previous alarms when update widget. keep adding more , more callback alarmmanager. try removing previous call , add new one