Develop Reference

AlarmManager alarm is called immediately when trigger time is in the past

Below is the code I am using to create alarms when data is pulled from external API. If the time set is in the past, the alarm goes off as soon as it is set(2 second gap). For example if I set the alarm for 8:00 AM, 10th April at 10:00 AM on 11th April(Past time). It starts the alarm as soon as it is set.
public static final int ALARM_REQUEST_CODE = 1001;
public static AlarmManager alarmManager = (AlarmManager) EHCApplication.getInstance().getApplicationContext().getSystemService(Context.ALARM_SERVICE);
public static Intent alarmIntent = new Intent(EHCApplication.getInstance().getApplicationContext(), AlarmReceiver.class);
public static PendingIntent pendingIntent = PendingIntent.getBroadcast(EHCApplication.getInstance().getApplicationContext(), ALARM_REQUEST_CODE, alarmIntent, PendingIntent.FLAG_UPDATE_CURRENT);
public static void setAlarm(Reminder rm) {
for (ScheduledTime time : rm.getScheduledTime()) {
Bundle bundle = new Bundle();
bundle.putParcelable(Constants.ARGS_SELECTED_MEDICINE, medicine);
alarmIntent.putExtras(bundle);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, time.getTimeInMilliseconds(), AlarmManager.INTERVAL_DAY, pendingIntent);
}
}
I am expecting the alarm to go off from next time it hit the time. Where am I making mistake?

This is the expected behavior.
From the documentation of setRepeating() (and other AlarmManager set methods):
If the stated trigger time is in the past, the alarm will be triggered
immediately
If you would like to prevent that happening, then simply do not set alarms with a past trigger time (e.g. check against System.currentTimeMillis() when setting the alarm).

Well, I ran into same problem and after studying I found that alarm will be run as soon when past time is set for the alarm.
Source: Here is documentation of Alarm Manager - setRepeating()
So, I resolved the issue by checking if "Calendar time is in past from system time than I add a day"
Working code:
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, hour);
calendar.set(Calendar.MINUTE, min);
calendar.set(Calendar.SECOND, 0);
alarmManager.cancel(pendingIntent);
// Check if the Calendar time is in the past
if (calendar.getTimeInMillis() < System.currentTimeMillis()) {
Log.e("setAlarm","time is in past");
calendar.add(Calendar.DAY_OF_YEAR, 1); // it will tell to run to next day
}
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, id, myIntent, PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pendingIntent); //Repeat every 24 hours

How can i set the alarm on the particular date in android?

Explanation:
I have calendar in which i set the events on the particular day of the given month.The event is stored into the database. on the event day is occurs it is trigger an alarm to notice the user.
suppose, my event is save on the 29/05/2016 then my alarm is triggered on the particular date.
Notice:i have multiple event created on the particular month.e.g. on the 29th may or 30th may also.
MyQuestion is how can i fire the multiple alarm on the particular multiple days.
Please, understand the flow what i exactly want?

If you want to play alarm for particular date and time , following code may help you
Calendar cal=Calendar.getInstance();
cal.set(Calendar.MONTH,5);
cal.set(Calendar.YEAR,2012);
cal.set(Calendar.DAY_OF_MONTH,11);
cal.set(Calendar.HOUR_OF_DAY,16);
cal.set(Calendar.MINUTE,10);
cal.set(Calendar.SECOND,0);
Intent _myIntent = new Intent(getApplicationContext(), ReceiverClass.class);
PendingIntent _myPendingIntent =
PendingIntent.getBroadcast(getApplicationContext(), 123, _myIntent,
PendingIntent.FLAG_UPDATE_CURRENT| Intent.FILL_IN_DATA);
AlarmManager myAlarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
//myAlarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + (10 * 1000), _myPendingIntent);
myAlarmManager.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), _myPendingIntent);

calendar = Calendar.getInstance();
calendar.set(Calendar.YEAR,date.getYear());
calendar.set(Calendar.MONTH,date.getMonth()+1);
calendar.set(Calendar.DAY_OF_MONTH,date.getDate());
calendar.set(Calendar.HOUR_OF_DAY,time.getHours());
calendar.set(Calendar.MINUTE,time.getMinutes());
calendar.set(Calendar.SECOND,time.getSeconds());
Intent myIntent = new Intent(context, AlarmReciever.class);
myIntent.putExtra("ReminderDetails",reminderDetails);
myIntent.putExtra("requestCode", requestCode);
pendingIntent = PendingIntent.getBroadcast(context, (int) (requestCode), myIntent,0);
alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP, date.getTime(),
interval, pendingIntent);
The following code here is good live for setting a calender time at the specified time and date.
And the most important thing here stands is that what do you pass in 2nd argument in alarmManager.setInexactRepeating(_) method,which is
date.getTime(), which is the only thing will work instead of using
calendar.getTimeinMillis() method, because that will return some unexpected time to be launched for intents.

Android alarm manager with fixed date and repetitive

How to create a AlarmManger which can be invoke on fixed date and time, This can be also repeat continuous by nature

unfortunately any of the options on the AlarmManager for repeating tasks doesn't allow such a fine control. Your best approach is to on every alarm, you re-schedule it for the next month.
PendingIntent pendingIntent = // set here your action
Calendar calendar = // set this guy to be the next 5th day
AlarmManager am = // get reference to the manager
am.set(RTC, calendar.getTimeInMillis(), pendingIntent);
on inside this Pending intent action you repeat the code. For example, let's say you want to launch a BroadcastReceiver
onReceive(Context context, Intent intent){
Calendar calendar = // set this guy to be the next 5th day
AlarmManager am = // get reference to the manager
am.set(RTC, calendar.getTimeInMillis(), pendingIntent);
}
to set the calendar object is easy:
Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.MONTH, 1);
calendar.set(Calendar.DAY, 5);

I just read a good answer to do the same.
The code is-
Calendar cal=Calendar.getInstance();
cal.set(Calendar.MONTH,5);
cal.set(Calendar.YEAR,2012);
cal.set(Calendar.DAY_OF_MONTH,11);
cal.set(Calendar.HOUR_OF_DAY,16);
cal.set(Calendar.MINUTE,10);
cal.set(Calendar.SECOND,0);
Intent _myIntent = new Intent(getApplicationContext(), ReceiverClass.class);
PendingIntent _myPendingIntent = PendingIntent.
getBroadcast(getApplicationContext(), 123,
_myIntent, PendingIntent.FLAG_UPDATE_CURRENT| Intent.FILL_IN_DATA);
AlarmManager _myAlarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
//_myAlarmManager.set(AlarmManager.RTC_WAKEUP,
System.currentTimeMillis() + (10 * 1000), _myPendingIntent);
_myAlarmManager.set(AlarmManager.RTC_WAKEUP,
cal.getTimeInMillis(), _myPendingIntent);
This is explained in android-alarm-setting-with-specific-date.

Get the alarm time which previously added to the AlarmManager

I'm using the AlarmManager class to notify the user everyday in specific time (user will choose the time from time picker)
every thing worked great al7mdllah ^^
But I want to get that time from the alarmManger and display it in the application to get a better UX
is there any way to get the alarm time?
Here's my code
public void witer_reminder(View view)
{
am = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(this, Witer_Notification.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0,
intent, PendingIntent.FLAG_CANCEL_CURRENT);
Calendar cal = Calendar.getInstance();
Calendar calSet = (Calendar) cal.clone();
calSet.set(Calendar.HOUR_OF_DAY, picker.getCurrentHour());
calSet.set(Calendar.MINUTE,picker.getCurrentMinute());
calSet.set(Calendar.SECOND, 0);
calSet.set(Calendar.MILLISECOND, 0);
if(calSet.compareTo(cal) <= 0){
//Today Set time passed, count to tomorrow
calSet.add(Calendar.DATE, 1);
}
am.setRepeating(AlarmManager.RTC_WAKEUP, calSet.getTimeInMillis(),
24*60*60*1000, pendingIntent);
}

But I want to get that time from the alarmManger and display it in the application to get a better UX is there any way to get the alarm time?
Save it yourself somewhere persistent (file, database, SharedPreferences) when you set up the event. AlarmManager is write-only; you cannot retrieve information about scheduled events from it.

android set multiple alarms simultaneosuly

Ok, let me modify the question and make it much easier. I Hope you'll be able to get me the solution for this. Both the alarms should be scheduled simultaneously, which is not happening here. I am even using unique requestcode for the pending intent. HELP ME please.....
//On click Listener
private OnClickListener mOneShotListener = new OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(AlarmController.this, OneShotAlarm.class);
PendingIntent sender = PendingIntent.getBroadcast(AlarmController.this,0, intent, 0);
//I even tried sender = PendingIntent.getBroadcast(AlarmController.this,0, intent, PendinIntent.FLAG_UPDATE_CURRENT);
//the alarm to go off 30 seconds from now.
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.add(Calendar.SECOND, 30);
// Schedule the alarm!
AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);
am.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), sender);
//adds 2 minutes to the time
calendar.add(Calendar.MINUTE, 2);
sender = PendingIntent.getBroadcast(AlarmController.this,1, intent,0);
am.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), sender2);
}
};
OLD Question:
I want to set two alarms at the same time for two different operations to be performed.
For Eg. A user sets alarm at 2'O clock and sets the duration to 15 mins. The first alarm should fire at 2'O clock which performs function1 and the second alarm should fire at 2:15 as the user specified the duration as 15 mins which performs the function2. This operation should be repeated everyday at 2'O clock unless the user changes the time.
I am calling this both functions on button click:
On Click Event
saveButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
..........
..........
new ReminderManager(this).setReminder(mRowId, mCalendar);
new ReminderManager(this).wakeReminder(mRowId, mCalendar, duration);
}
}
The setReminder contains
//sets alarm at 2'O clock
public void setReminder(Long taskId, Calendar when, String duration){
Intent i = new Intent(mContext, OnAlarmReceiver.class);
i.putExtra(RemindersDbAdapter.KEY_ROWID, (long)taskId);
PendingIntent pi = PendingIntent.getBroadcast(mContext,(int)System.currentTimeMillis(), i, PendingIntent.FLAG_UPDATE_CURRENT);
mAlarmManager.setRepeating(AlarmManager.RTC_WAKEUP, when.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pi);
}
The wakeReminder contains
//adds duration i.e. 15mins
public void wakeReminder(Long taskId, Calendar when, String duration){
Intent i = new Intent(mContext, OnAlarmReceiverWake.class);
i.putExtra(RemindersDbAdapter.KEY_ROWID, (long)taskId);
Long d = Long.parseLong(duration);
Long mins = d*60*100;
Long milli = when.getTimeInMillis() + mins;
PendingIntent pi = PendingIntent.getBroadcast(mContext, (int)System.currentTimeMillis(), i, PendingIntent.FLAG_UPDATE_CURRENT);
mAlarmManager.set(AlarmManager.RTC_WAKEUP, milli, pi);
}
I have noticed that whenever mAlarmManager.set(); is executed successfully the LogCat shows notification like
"enqueueToast pkg=com.jellboi.android.togglemode callback=android.app ITransientNotification$stub$proxy#43c0c5f8 duration=0"
but when I set both the alarms simultaneously the notification is not shown when the mAlarmManager.setRepeating(AlarmManager.RTC_WAKEUP, when.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pi); is executed
but the notification is shown when mAlarmManager.set(AlarmManager.RTC_WAKEUP, milli, pi); is executed. Also the notification is set for the original time i.e. 2'O clock and not after adding 15mins to it's duration.
Please help, I tried a lot of ways to call this functions at different places like after the 1st alarm is fired but all in vain.

PendingIntent sender = PendingIntent.getBroadcast(AlarmController.this,0, intent, 0);
You have problem in this line. If you want to simultaneously fire two alarma then you should do something like this
PendingIntent sender = PendingIntent.getBroadcast(AlarmController.this,giveUniqueRequestIdsHere, intent, 0);

sender = PendingIntent.getBroadcast(this, (int) System.currentTimeMillis(), i, PendingIntent.FLAG_ONE_SHOT);
Do the same for your PendingIntent.getActivity();

Hi try using this to generate request I was generating my own request code but this line worked for me
final int intent_id = (int) System.currentTimeMillis();

When launch new OneShotAlarm.class, it have to design launch mode. Default setting would ignore the second time launch, if the first instance still existed.
Intent intent = new Intent(AlarmController.this, OneShotAlarm.class);
intent.setFlags(Intent.FLAG_ACTIVITY_MULTIPLE_TASK);

seems like you forgot to set "sender2" before your second call.
you change the value of sender, then put sender2 as the argument.

You can create an array of your task in the Service class and set the array in the for loop, inside the for loop you can call your task simultaneously at the same time.

Try this:
Calendar cal = new GregorianCalendar();
Date date = cal.getTime();
cal.clear();
Cursor c = database.query(mArray.get(mPosition), new String[]{"days"},"days"+"!="+0, null, null, null, null);
cal.set(Calendar.YEAR,2011);
cal.set(Calendar.MONTH,date.getMonth());
cal.set(Calendar.DAY_OF_MONTH,date.getDate());
cal.set(Calendar.HOUR_OF_DAY, hour);
cal.set(Calendar.MINUTE, min);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MILLISECOND, 0);
AlarmManager mgr = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
Intent i = new Intent(nextScreen.this, AlaramReciver.class);
i.putExtra("Start",mArray.get(mPosition));
Editor medit = getSharedPreferences("Start", 0).edit();
medit.putString("Start", mArray.get(mPosition));medit.commit();
PendingIntent pendingintent = PendingIntent.getBroadcast(this,mPosition, i, 0);
mgr.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), pendingintent);
You have set to the time like this, and once you set time in alarm manager it will automatically call the functions daily. Use different request code for pendingintent.
If you want call second function. You just add the time in 15 min in the
cal.set(Calender.MINUTE,min+15);