I would like to set a notification at 8th of every month.
This is what i did:
Intent myIntent = new Intent(remember.this, receiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(remember.this, 0, myIntent, 0);
AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
// Set the alarm to start at approximately 8th of
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.DAY_OF_MONTH, 8);
alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
AlarmManager.INTERVAL_DAY*30, pendingIntent);
However what i got was a constant notification within minutes. And this does not go away.
Would appreciate your help here as i really do not know where went wrong.
Set calendar to upcoming 8th of the month.
alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis() , pendingIntent);
Inside receiver.class
public void onReceive(Context context, Intent intent) {
//do action needed
//invoke alarmManager in mainActivity
// cancel the previous alarm
// set the new alarm for the next month
}
Related
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
I have an AlarmManager that I call at the end of every day, ie 23.59PM, to do some stuff for the new day. (Its called, NewDayReceiver.class.) It repeats every day.
I also set a broadcast receiver that will run the alarm on reboot. It all works fine.
However, if the phone is off at the end of the day, the alarm for that day is not called. When the phone is turned back on, on boot the alarm is set again, however its set for the end of the new day. It comes out, that the alarm for that day was never called. For example, if its off Sunday night, on Monday morning the phone is turned on but the alarm hasn't been called. It will only be called Monday night?
How can I do it, that on the boot broadcast receiver, I can check if the alarm was called for that day, and if it wasn't set the alarm to go off right away.
I hope its clear.
Here is my alarm for every day.
Intent intent = new Intent(this, NewDayReceiver.class);
AlarmManager alarmManager = (AlarmManager) this.getSystemService(Context.ALARM_SERVICE);
PendingIntent pendingIntent = PendingIntent.getBroadcast(MainActivity.this, 0, intent, 0);
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, 23);
calendar.set(Calendar.MINUTE, 59);
calendar.set(Calendar.SECOND, 59);
if(!calendar.before(Calendar.getInstance())) {
// Repeat every 24 hours
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), 24*60*60*1000, pendingIntent);
Log.d(TAG, "New day alarm set for:" + calendar.getTime() + " and will repeat every day");
}
Here is my BroadcastReceiver, that I call on boot:
public class BootBroadcastReceiver extends BroadcastReceiver {
private static final String TAG = "999.BootBroadcastReceiver";
#Override
public void onReceive(Context pContext, Intent intent) {
newDayAlarm(pContext);
newWeekAlarm(pContext);
}
private void newWeekAlarm(Context context) {
Intent intent = new Intent(context, NewWeekReceiver.class);
AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 55, intent, 0);
// real for end of week
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.DAY_OF_WEEK, Calendar.SATURDAY);
calendar.set(Calendar.HOUR_OF_DAY, 23);
calendar.set(Calendar.MINUTE, 59);
calendar.set(Calendar.SECOND, 59);
if(!calendar.before(Calendar.getInstance())) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
alarmManager.setExact(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);
Log.d(TAG, "New week alarm set for:" + calendar.getTime());
}
}
}
I have a AlarmManager in order to show notification. I don't want that I get a notification everytime I launch the app. I read a lot but nothing was satisfying. My method doNotification in MainActivity.java looks like this:
public void doNotification(){
AlarmManager alarmManager = (AlarmManager) this.getSystemService(Context.ALARM_SERVICE);
Intent i = new Intent(this, AlarmReceiver.class);
PendingIntent pending = PendingIntent.getBroadcast(this, 0, i,PendingIntent.FLAG_CANCEL_CURRENT);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP ,calendar.getTimeInMillis(), 1000*60*60*24*30 , pending); //every month
}
This method is in the OnCreate of my MainActivity class.
I know, that this is the reason why I get a notification everytime I launch my app.
My goal was to fire a notification every month, starting from the Date where the app was launched the first time. E.g User launches app on 5. July then you will get a notification on every 5th of every month.
How can I achieve this?
Thank you.
EDIT: According to the comments I used SharedPreferences is that a right use of it. Here is the new code:
public void doNotification(){
boolean isFirstAlarm = getSharedPreferences("ALARMFIRSTTIME",MODE_PRIVATE).getBoolean("isFirstAlarm",false);
if(!isFirstAlarm) {
AlarmManager alarmManager = (AlarmManager) this.getSystemService(Context.ALARM_SERVICE);
Intent i = new Intent(this, AlarmReceiver.class);
PendingIntent pending = PendingIntent.getBroadcast(this, 0, i, PendingIntent.FLAG_CANCEL_CURRENT);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), 1000 * 60 * 60 * 24 * 30, pending); //every month
getSharedPreferences("ALARMFIRSTTIME", MODE_PRIVATE)
.edit()
.putBoolean("isFirstAlarm",true)
.apply();
}
}
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.
I am trying to trigger action everyday at 00:00:00 AM using AlarmManager but the problem is first time action is triggered quickly and then works as expected. First time, action triggers as soon as the code is run. Please see the following code:
private void setAlarmManagerForDateChange()
{
Intent intent = new Intent(this, DateTimeChangeReceiver.class);
intent.putParcelableArrayListExtra("names", names);
PendingIntent pendingIntent = PendingIntent.getBroadcast(this,
999, intent, PendingIntent.FLAG_UPDATE_CURRENT);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.AM_PM, Calendar.AM);
AlarmManager alarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
alarmManager.setRepeating(AlarmManager.RTC, calendar.getTimeInMillis(),
24 * 60 * 60 * 1000, pendingIntent);
}
It action triggers before 00:00:00 AM for the first time. Please point out what is being missed. Thanks,
You're scheduling the alarm in the past, which causes the AlarmManager to fire instantly.
You take the current date (e.g. 05/29/14 20:08:32), and set the hour, minute and second to 0.
What you get is: 05/29/14 00:00:00.
What you actually want, is to add another day to get to 06/29/14 00:00:00.
calendar.add(Calendar.DAY, 1);