Develop Reference

PutExtras with repeating alarmmanager

I want to schedule a repeating alarm at user define time. For that i am using following code
AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
Intent intent = new Intent(this, AlarmReceiver.class);
intent.putExtra("id", id);
intent.putExtra("ontime", flag_ontime);
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0,
intent, PendingIntent.FLAG_UPDATE_CURRENT);
am.setRepeating(AlarmManager.RTC_WAKEUP,
SystemClock.elapsedRealtime() +calendar.getTimeInMillis(),
AlarmManager.INTERVAL_DAY, pendingIntent);
All works fine...my alarm also fire at desired time but in my receiver i always get only default values from intent not passed one
AlarmReceiver.class
long id = intent.getLongExtra("id", -1);
boolean ontime = intent.getBooleanExtra("ontime", false);
here id is always -1 and ontime is false....please help me

well i for now i have solved this by using alarmmanager setExact() method and on each event fire i re-schedule alarm as per its repeating time....looking for batter solution

Canceling alarms from AlarmManager

I am working on application which is get the alarm time from database every 2 AM and then at the specified time the activity shows up, my app works fine, but when I manually change the data/time of the device, previous alarms are triggered and I should prevent to this to happens.
Here is my PendingIntent:
Intent i = new Intent(mContext, AlarmReceiver.class);
PendingIntent pi = PendingIntent.getBroadcast(G.context, _id, i,
PendingIntent.FLAG_UPDATE_CURRENT);
Which each _id is unique and when I make a receiver for date changed event before my alarm cancel method fired previous alarms go off!
Can some body help to solve this problem?

Try this code:
Intent intent = new Intent(this, Mote.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 1253, intent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE); alarmManager.cancel(pendingIntent);

For cancel the alarm:
Intent intent = new Intent(this, Mote.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 1253, intent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.cancel(pendingIntent);
Edit
Well you can look for the answer and modify as per your requirements:
How to stop Android AlarmManager when there is a manual system time change?
AlarmManager: how to schedule a daily alarm and deal with time changes

Intent intent1 = new Intent(G.context, DailyAlarmReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(G.context,
G.dateTimesetAlarm.getDayOfYear(), intent1, 0);
mAlarmManager.cancel(pendingIntent);
pendingIntent.cancel();

How to start a service at a specific time

Am creating an application that fetch data from webservice. I have been while(true) and sleeping the loop at a specific milliseconds.. i had like to make the service action(fetching data from webservice) to always start at a specific time.. instead on being on always and pausing by Thread.sleep(milli)... Thanks
this is what have been using
while(true)
{
///pullDataFromWebservice();
Thread.sleep(600000);
}

Use the Alarm API. It is way safer than having a sleep & poll service.
Why?
Because Android is very likely to reclaim such a long running services when resources turn low, resulting
in your delayed logic never being called!
An example for activating a callback in 1 hour from now:
private PendingIntent pIntent;
AlarmManager manager = (AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(context, MyDelayedReceiver.class); <------- the receiver to be activated
pIntent = PendingIntent.getBroadcast(context, 0, intent, 0);
manager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
SystemClock.elapsedRealtime() +
60*60*1000, pIntent); <---------- activation interval

Try using AlarmManager - A bit battery eater though
AlarmManager alarmMgr = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(this, YourClass.class);
PendingIntent pIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
Calendar cal= Calendar.getInstance();
cal.set(Calendar.HOUR_OF_DAY, 19);
cal.set(Calendar.MINUTE, 20);
cal.set(Calendar.SECOND, 0);
alarmMgr.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), pIntent);
//RTC_WAKEUP to enable this alarm even in switched off mode.

How to cancel multiple alarms with duplicate PendingIntent at once?

I am setting multiple alarms which will have the exact same PendingIntent object, but their time of going off is different. If I cancel one alarm by providing the same Intent object to PendingIntent, and pass this to AlarmManager.cancel(), will it cancel all the alarms (i.e. with different starting times) or will it exhibit some other behavior?
Here is the code:
while(size != 0)
{
timeToSet = getNewTime(); //gets calendar object
Intent intent = new Intent(this, MyAlarmReceiver.class);
intent.putExtra("uniqueid", uuid);
intent.putExtra("vibrate", myalarm.getVibrate());
intent.putExtra("important", myalarm.getImportant());
PendingIntent pendingIntent = PendingIntent.getBroadcast(this.getApplicationContext(),
0, intent, PendingIntent.FLAG_UPDATE_CURRENT | Intent.FILL_IN_DATA);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, timeToSet.getTimeInMillis(), 604800000, pendingIntent);
size--;
}
So the Intent object is same for all the alarms, but the time is different.
Now when I cancel these alarms:
Intent intent = new Intent(this, MyAlarmReceiver.class);
intent.putExtra("uniqueid", uuid);
intent.putExtra("vibrate", myalarm.getVibrate());
intent.putExtra("important", myalarm.getImportant());
PendingIntent pendingIntent = PendingIntent.getBroadcast(this.getApplicationContext(), 0, intent, PendingIntent.FLAG_UPDATE_CURRENT | Intent.FILL_IN_DATA);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.cancel(pendingIntent);
Will all the alarms get cancelled? That is what I want it to do. I could use a different requestCode in every PendingIntent, but it will be better if all of them get cancelled as I dont want to maintain and store these extra requestCodes.
Thanks!

If you have a predefined amount of alarms you can set a unique requestCode (second parameter of getBroadcast) for each alarm. But I'm not sure if that works for you. If you don't specify a requestCode all alarms will be seen as equal by filterEqualsand therefore all alarms will be canceled.

android Alarmmanager doesn't repeat over long intervals

I'm sure I'm doing something wrong but I can't get the alarm manager to trigger more than once when I setup an alarm doing the following:
AlarmManager mgr = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Intent i = new Intent(context, ReminderAlarmReceiver.class);
i.setData(Uri.parse(REMINDER_ID + getReminderID() + getTriggerAtTime()));
i.putExtra(REMINDER_ID, reminderID);
i.putExtra(DiaryListItem.DIARY_ID, parentDiaryID);
PendingIntent pi = PendingIntent.getBroadcast(context, 0, i, PendingIntent.FLAG_UPDATE_CURRENT);
mgr.setRepeating(AlarmManager.RTC_WAKEUP, triggerAtTime, AlarmManager.INTERVAL_DAY;, pi);
It seems to trigger the first day but doesn't trigger the next day. The same thing happens when I try to make a weekly or monthly alarm. Is there a better way of setting up long term alarms?

Did you mean to put that semicolon in your .setRepeating? I imagine your run would crash if it were actually still there:
mgr.setRepeating(AlarmManager.RTC_WAKEUP, triggerAtTime, AlarmManager.INTERVAL_DAY;, pi);
should be
mgr.setRepeating(AlarmManager.RTC_WAKEUP, triggerAtTime, AlarmManager.INTERVAL_DAY, pi);
If that was just a typo, does your logcat give any kind of error?