Develop Reference

Alarm Manager triggering only the last scheduled task in Android

I am using Alarm Manager to schedule different jobs to be executed at different hours of the day. When i am scheduling only one job it is working expectedly, but when i schedule multiple jobs, only the last scheduled gets executed. Below are my codes.
private void triggerAlarm(int hr, int min, String sid, String cid) {
Intent intentToFire = new Intent(getApplicationContext(), AlarmBroadcastReceiver.class);
intentToFire.putExtra("cid", cid);
intentToFire.putExtra("sid", sid);
intentToFire.setAction(ACTION_ALARM);
PendingIntent alarmIntent = PendingIntent.getBroadcast(getApplicationContext(),
0, intentToFire, 0);
AlarmManager alarmManager = (AlarmManager) getApplicationContext().
getSystemService(Context.ALARM_SERVICE);
Calendar c = Calendar.getInstance();
c.set(Calendar.HOUR_OF_DAY, hr);
c.set(Calendar.MINUTE, min);
c.set(Calendar.SECOND, 0);
long afterTwoMinutes = c.getTimeInMillis();
alarmManager.set(AlarmManager.RTC_WAKEUP, afterTwoMinutes, alarmIntent);
//sendBroadcast(intentToFire);
}

You can use id for your AlarmReceiver I Also Using this and hope it's also works for you
in targetCal Param just pass your calander obje where you selecting time for alarm
like this
private void setAlarm(Calendar targetCal) {
Intent intent = new Intent(getBaseContext(), AlarmReceiver.class);
final int _id = (int) System.currentTimeMillis();
PendingIntent appIntent = PendingIntent.getBroadcast(this, _id, intent,PendingIntent.FLAG_ONE_SHOT);
// PendingIntent pendingIntent = PendingIntent.getBroadcast(getBaseContext(), RQS_1, intent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, targetCal.getTimeInMillis(),
appIntent);
}
Hope it works for you.

Use set() in Alarm Manager with values i have

How do i use the two vales i have (hour and minute ) to set and alarm at that time? The values i have unfortuntly arent formated so if hour is > 12 it wont go to one (Its in milatary time format) .Did i set up the pending intent correctly?
public void setUpAlarm(int hour,int minute) {
long newTime;
Intent alarm = Intent(setAlarmList.this, AlarmReciever.class);
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
PendingIntent waiting = PendingIntent.getBroadcast(setAlarmList.this, 0, alarm, 0);
alarmManager.setExact(AlarmManager.RTC_WAKEUP, hour.);

use below code
AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Calendar cal = Calendar.getInstance();
cal.set(Calendar.HOUR_OF_DAY, h); // h->hour in 24 hrs system
cal.set(Calendar.MINUTE, m); // m->minutes
Intent intent = new Intent(context, AlarmReceiver.class);
alarmIntent = PendingIntent.getBroadcast(context, 0, intent, 0);
if (android.os.Build.VERSION.SDK_INT>16)
{
alarmManager.setExact(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), broadcast);
}else
{
alarmManager.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), alarmIntent);
} //alarmIntent is your PendingIntent
read this documentation

Alarm not getting cancelled

I am setting the alarm in one activity, and want to cancel it in another class which is a service. Following is my code:
Intent intent = new Intent(SetAlarm.this, AlertFriend.class);
PendingIntent pi = PendingIntent.getActivity(SetAlarm.this, unique_id, inent,
PendingIntent.FLAG_UPDATE_CURRENT);
Calendar c1 = Calendar.getInstance();
c1.set(Calendar.HOUR_OF_DAY, hour);
c1.set(Calendar.MINUTE, min);
c1.set(Calendar.SECOND, 0);
c1.set(Calendar.MILLISECOND, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, c1.getTimeInMillis(), pi);
And following is where i am deleting the alarm (where a is pi):
Intent intent = new Intent(context, AlertFriend.class);
AlarmManager alarm = (AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
alarm.cancel(PendingIntent.getActivity(context, a, intent,PendingIntent.FLAG_UPDATE_CURRENT));

AlarmManager at specific date and time

I'd like to show a dialog at specific date and time (25/12/2012 at 12.00) and I am using this code. I set like 11 month (because 0 is gen) but the alarm does not start. What is my mistake?
Calendar cal=Calendar.getInstance();
cal.set(Calendar.MONTH,11);
cal.set(Calendar.YEAR,2012);
cal.set(Calendar.DAY_OF_MONTH,25);
cal.set(Calendar.HOUR_OF_DAY,12);
cal.set(Calendar.MINUTE,00);
cal.set(Calendar.SECOND,0);
Intent _myIntent = new Intent(context, Notify.class);
PendingIntent _myPendingIntent = PendingIntent.getBroadcast(context, 123, _myIntent, PendingIntent.FLAG_UPDATE_CURRENT| Intent.FILL_IN_DATA);
AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), _myPendingIntent);

Look at below code about how i am going to set the alarm for the December month:
// for Alarm 25/12/2012 at 12.00
Calendar myAlarmDate = Calendar.getInstance();
myAlarmDate.setTimeInMillis(System.currentTimeMillis());
myAlarmDate.set(2012, 11, 25, 12, 00, 0);
AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Intent _myIntent = new Intent(context, AlarmReceiverNotificationForEveryMonth.class);
_myIntent.putExtra("MyMessage","HERE I AM PASSING THEPERTICULAR MESSAGE WHICH SHOULD BE SHOW ON RECEIVER OF ALARM");
PendingIntent _myPendingIntent = PendingIntent.getBroadcast(context, 123, _myIntent, PendingIntent.FLAG_UPDATE_CURRENT);
alarmManager.set(AlarmManager.RTC_WAKEUP, myAlarmDate.getTimeInMillis(),_myPendingIntent);
You can update the above code with your intent and class and you will get your desire output.
Hope this help you.

android how to set the phone alarm through code

I want to set the alram for phone through program coding. I have an button where by clicking DatePicker come & also time picker. I want what time i set here that time should be set in phones alaram. How can I do that . plz give me the answer . Thank you

Please try this....
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DAY_OF_YEAR, 0);
cal.set(Calendar.HOUR_OF_DAY, 9);
cal.set(Calendar.MINUTE, 01);
cal.set(Calendar.SECOND, 0);
Intent intent = new Intent(Alarm.this, Alarm1.class);
PendingIntent sender = PendingIntent.getBroadcast(this, 1234567, intent, 0);
PendingIntent sende2 = PendingIntent.getBroadcast(this, 123123, intent, 0);
AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
am.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), sender);
am.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), sende2);
Intent intent1 = new Intent(Alarm.this, Alarm1.class);
PendingIntent sender1 = PendingIntent.getBroadcast(this, 1234567, intent1, 0);
AlarmManager am1 = (AlarmManager) getSystemService(ALARM_SERVICE);
am1.cancel(sender1);
b1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Alarm a = new Alarm ();
a.setAlarm();
b1.setText(prod);
}
});