android - AlarmManager not creating an alarm -

i'm attempting add "reminders" functionality app. want set alarmmanager , fire notification when alarm happens.

i've added few methods create alarm, cancel alarm, , see if alarm active.

the following code in settings.class extends activity:

private boolean getremindersenabled() {     return (pendingintent.getbroadcast(this,             1,             new intent(this, main.class),             pendingintent.flag_no_create) != null); }  private void enablereminders() {     alarmmanager alarmmgr;     pendingintent alarmintent;      alarmmgr = (alarmmanager)getsystemservice(context.alarm_service);     intent intent = new intent(this, main.class);     alarmintent = pendingintent.getbroadcast(this, 0, intent, 0);      calendar calendar = calendar.getinstance();     calendar.settimeinmillis(system.currenttimemillis());     calendar.set(calendar.hour_of_day, mdaystart);     calendar.set(calendar.minute, 0);      alarmmgr.setrepeating(alarmmanager.rtc_wakeup, calendar.gettimeinmillis(),             sixy_minutes,             alarmintent);      mremindersenabled = getremindersenabled();     populatereminders(); }  private void disablereminders() {     alarmmanager service = (alarmmanager)getsystemservice(context.alarm_service);     intent intent = new intent(this, main.class);     pendingintent pending = pendingintent.getbroadcast(this,             0,             intent,             pendingintent.flag_cancel_current);     service.cancel(pending);      mremindersenabled = getremindersenabled();     populatereminders(); } 

when call enablereminders(), creates alarm. however, getremindersenabled() returns false. there i'm failing do?

getremindersenabled() should use same requestcode pendingintent creates alarm. in case, using 1, correct 0.

private boolean getremindersenabled() {     return (pendingintent.getbroadcast(this,             0,             new intent(this, main.class),             pendingintent.flag_no_create) != null); } 

[edit]

to cancel alarm, before calling service.cancel(intent);, call pending.cancel(); using flag flag_update_current

pendingintent pending = pendingintent.getbroadcast(this,         0,         intent,         pendingintent. flag_update_current); pending.cancel(); service.cancel(pending);