I have an AlarmService that is initialized when the devicve boots, starts at 6 am, ends at 6 pm and repeats hourly.
How do I make sure that it starts again after I cancel it at 6 pm?
This is my BootReceiver:
if (intent.getAction().equals("android.intent.action.BOOT_COMPLETED")) {
// assign RefreshService class
Intent alarmIntent = new Intent(context, RefreshService.class);
PendingIntent alarmPendingIntent = PendingIntent.getBroadcast(context, alarmManagerRequestCode, alarmIntent, 0);
// set the alarm
// it starts at 6 am and repeats once an hour
// elapsed_realtime is used to save ressources
AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
alarmManager.setInexactRepeating(AlarmManager.ELAPSED_REALTIME, firstRefresh,
AlarmManager.INTERVAL_HOUR,
alarmPendingIntent);
}
So it is initialized when the device boots and starts at 6 am (firstRefresh) and repeats hourly.
To have it stop I would put the following into my RefreshService(lastRefresh is 6 pm in milliseconds):
if (System.currentTimeMillis() >= lastRefresh) {
Intent alarmIntent = new Intent(this, RefreshService.class);
PendingIntent alarmPendingIntent = PendingIntent.getBroadcast(this, BootReceiver.alarmManagerRequestCode, alarmIntent, 0);
AlarmManager alarmManager = (AlarmManager) this.getSystemService(Context.ALARM_SERVICE);
alarmManager.cancel(alarmPendingIntent);
}
Appreciate y'alls help!
Thanks #Opiatefuchs for pointing that out:
The only thing you have to do is setting the alarm after cancelling it and setting the first time it's fired to needed time the next day.
Use calender, AlarmManager and pendingIntent for this-
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, 5); // For 5 AM or 6 AM
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
PendingIntent pi = PendingIntent.getService(context, 0,
new Intent(context, NewClass.class),PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
am.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
AlarmManager.INTERVAL_DAY, pi);
Use setRepeating:
here is the nice example:
https://stackoverflow.com/a/13879448/4617458
Related
I have built an alarm which works properly:
public static void setAlarm(int hours, int minutes) {
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, hours);
calendar.set(Calendar.MINUTE, minutes);
Intent myIntent = new Intent(PreferenceHelper.getContext(), TimeManagementAdapter.AlarmReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(PreferenceHelper.getContext(), 0, myIntent, 0);
alarmManager.set(AlarmManager.RTC, calendar.getTimeInMillis(), pendingIntent);
}
Now, how can I edit the alarm time and delete the alarm?
For cancelling the alarm you may call AlarmManager.cancel with your PendingIntent.
Intent myIntent = new Intent(PreferenceHelper.getContext(), TimeManagementAdapter.AlarmReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(PreferenceHelper.getContext(), 0, myIntent, 0);
alarmManager.cancel(pendingIntent);
For editing the alarm, you have the option to first cancel it and re-add it or you may add PendingIntent.FLAG_UPDATE_CURRENT as the last option when scheduling a new alarm.
PendingIntent pendingIntent = PendingIntent.getBroadcast(PreferenceHelper.getContext(), 0, myIntent, 0, PendingIntent.FLAG_UPDATE_CURRENT);
Possible duplicate Cancel an AlarmManager pendingIntent in another pendingintent
In my app, I need to start a service at 2:00pm daily. Right now I wrote the code to trigger the alarm once, this code is ran every time I open the app:
AlarmManager alarmMgr = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(this, DownloadReceiver.class);
PendingIntent pIntent = PendingIntent.getBroadcast(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
alarmMgr.cancel(pIntent);
Calendar cal= Calendar.getInstance();
cal.setTimeInMillis(System.currentTimeMillis());
cal.set(Calendar.HOUR_OF_DAY,refreshhour);
cal.set(Calendar.MINUTE,refreshmin);
cal.set(Calendar.SECOND, 0);
// if the scheduler date is passed, move scheduler time to tomorrow
if (System.currentTimeMillis() > cal.getTimeInMillis()) {
cal.add(Calendar.DAY_OF_YEAR, 1);
}
if(android.os.Build.VERSION.SDK_INT>=23) {
alarmMgr.setAndAllowWhileIdle(AlarmManager.RTC_WAKEUP,
cal.getTimeInMillis(), pIntent);
}
else{
alarmMgr.setInexactRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(),
AlarmManager.INTERVAL_DAY, pIntent);
}
Q1. I used setAndAllowWhileIdle() for sdk above 23 in case the device is in Doze mode. I cannot find any option in this function that I can set the alarm to repeat every day.
Q2. I also have questions about setInexactRepeating() , normally it is set to repeat every day by setting the parameter INTERVAL_DAY , but in the docs, it says
As of API 19, all repeating alarms will be inexact and subject to
batching with other alarms regardless of their stated repeat interval.
Does this mean INTERVAL_DAY does not work anymore, so how can I set the alarm daily without rerunning this function and reset alarmManager?
Try below code will solve your problem-
AlarmManager alarmMgr = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
boolean flag = (PendingIntent.getBroadcast(this, 0,
new Intent("totime.action.string"),
PendingIntent.FLAG_NO_CREATE) != null);
if(!flag)
{
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, 14);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
Intent intent = new Intent("totime.action.string");
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager alarmManager = (AlarmManager) Data_Graph.this.getSystemService(Context.ALARM_SERVICE);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),(24*60*60*1000), pendingIntent);
}
I have an alarmmanager set to fire every 3 hours a day and its working fine. Now my problem is i dont want alarmmanager to fire at night hours i.e from 9pm to 9am on next day.
My code:
Intent myIntent = new Intent(context, MyScheduledReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, myIntent, PendingIntent.FLAG_UPDATE_CURRENT);
//PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, myIntent, 0);
AlarmManager alarmManager = (AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
long interval = 3*60*60*1000;
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), interval, pendingIntent);
and to stop this alarmmanager repeating, i used this snippet to stop manually.
Intent myIntent = new Intent(context, MyScheduledReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, myIntent, 0);
AlarmManager alarmManager = (AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
alarmManager.cancel(pendingIntent);
Now how do i check if the time is in night hours or at day hours?
Intent myAlarm = new Intent(context, AlarmReceiver.class);
PendingIntent recurringAlarm = PendingIntent.getBroadcast(context.getApplicationContext(), 0, myAlarm, PendingIntent.FLAG_CANCEL_CURRENT);
AlarmManager alarms = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Calendar updateTime = Calendar.getInstance();
alarms.setRepeating(AlarmManager.RTC_WAKEUP, updateTime.getTimeInMillis(), AlarmManager.INTERVAL_DAY / 3, recurringAlarm);
Say this piece of code is executed more than once. This results in that many alarms being created (I find this info from dumpsys where it says X# wakes - X# alarms).
I've been told that setting the same request code and same intent cannot start the alarm the second 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.