How to Create UILocalNotification for Multiple firedates - ios

Hi in my Application I have Multiple events for every event i need to create one UILocalNotification for example like I want to say wishes on Fathers day,Mothers and some festivals. So I already i have the specific date now I want to fire it on the particular day please how to do this. I have already done for single UILocalNotification Now I need for multiple firedates.
My code.
- (void)applicationDidEnterBackground:(UIApplication *)application
{
NSCalendar *regCalender =[NSCalendar currentCalendar];
NSDateComponents *dateComponent = [regCalender components:NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit fromDate:[NSDate date]];
[dateComponent setYear:2014];
[dateComponent setMonth:7];
[dateComponent setDay:8];
[dateComponent setHour:15];
[dateComponent setMinute:31];
UIDatePicker *dd = [[UIDatePicker alloc]init];
[dd setDate:[regCalender dateFromComponents:dateComponent]];
UILocalNotification *notification = [[UILocalNotification alloc]init];
[notification setAlertBody:#"Welcome"];
[notification setFireDate:dd.date];
[notification setTimeZone:[NSTimeZone defaultTimeZone]];
notification.soundName=#"double_tone.mp3";
[application setScheduledLocalNotifications:[NSArray arrayWithObject:notification]];
}
I have used this above code for single firedate UILocalNotification please tell me how to do it for multiple firedates.
Thanks.

Here is the answer,
In compsForFireDate you can ad multiple date and you can call it yearly
-(void) YearlyNotification: (int)year :(UILocalNotification *)notification : (NSDate*) alramDate
{
NSCalendar *calendar = [NSCalendar currentCalendar];
NSDateComponents *compsForFireDate = [calendar components:(NSYearCalendarUnit | NSWeekCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit| NSSecondCalendarUnit | NSWeekdayCalendarUnit) fromDate: alramDate];
[compsForFireDate setHour: 10] ; //for fixing 10AM hour
[compsForFireDate setMinute:0] ;
[compsForFireDate setSecond:0] ;
notification.repeatInterval = NSYearCalendarUnit;
notification.fireDate=[calendar dateFromComponents:compsForFireDate];
[[UIApplication sharedApplication] scheduleLocalNotification:notification];
}

I'm guessing you are registering the notification with setScheduledLocalNotifications: which will replace any existing notification. This is clearly stated in the documentation.
To schedule a single UILocalNotification use -(void)scheduleLocalNotification:(UILocalNotification *)notification
Here I have create a methods that take a date and a string to schedule an UILocalNotification:
-(void) addLocalNotificationForDate:(NSDate *)date withAlertBody:(NSString *)alertBody {
UILocalNotification *notification = [[UILocalNotification alloc]init];
[notification setAlertBody:alertBody];
[notification setFireDate:date];
[notification setTimeZone:[NSTimeZone defaultTimeZone]];
notification.soundName=#"double_tone.mp3";
[[UIApplication sharedApplication] scheduleLocalNotification:notification];
}

Related

Local Notification on specific days

I wanna repeat a local notification message every Wednesday 6.00 pm.
How would I do that?
For the moment I use following code. But even I try, nothing happens at this time. I logged the UIDate, it shows me 0001-01-01 17:25:52. I figured out, it is the wrong time zone. I am in the CEST time zone. How would I change that?
- (void)applicationDidEnterBackground:(UIApplication *)application {
//Calendar
NSCalendar *gregCalendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
NSDateComponents *dateCompnent = [gregCalendar components:NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay | NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitWeekday fromDate:[NSDate date]];
[dateCompnent setWeekday:4];
[dateCompnent setHour:18];
[dateCompnent setMinute:00];
UIDatePicker *dd = [[UIDatePicker alloc] init];
[dd setDate:[gregCalendar dateFromComponents:dateCompnent]];
//Notification
UILocalNotification *notification = [[UILocalNotification alloc] init];
[notification setAlertBody:#"Test Notification"];
[notification setFireDate:dd.date];
[notification setSoundName:#"sound.mp3"];
[notification setTimeZone:[NSTimeZone defaultTimeZone]];
[application setScheduledLocalNotifications:[NSArray arrayWithObject:notification]];
}
You've to add year, month and day to your date component.
See also this blog post for scheduling repeating local notifications.
http://useyourloaf.com/blog/2010/09/13/repeating-an-ios-local-notification.html

Reset UILocationNotification fire date set for everyday

I've a function in my app which allowed to use for max. 3 times/day to a user – once he/she used it for all 3 times, they can't not use it again until next day.
I'm using UILocationNotification in my app, to show a notification each day. If a user open my app, and he didn't use those functions for that particular day then, I'll set up notification to fire at exactly 4.00pm for that day. But now what I want is, while user is using the app – if he/she used that function for 3 times then the notification should not get fire and it should set for the next day at the same time.
This is how I'm showing up local notification.
- (void) fireNoteForEachDay {
[[UIApplication sharedApplication] cancelAllLocalNotifications];
UILocalNotification *notif = [[UILocalNotification alloc] init];
NSCalendar *gregCalendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *dateComponents = [gregCalendar components:(NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit) fromDate:[NSDate date]];
[dateComponents setHour:16];
[dateComponents setMinute:0];
[dateComponents setSecond:0];
[notif setFireDate:[gregCalendar dateFromComponents:dateComponents]];
[notif setAlertBody:#"Come back to the app – to use '<function name>' !"];
[notif setRepeatInterval:NSDayCalendarUnit];
[notif setTimeZone:[NSTimeZone defaultTimeZone]];
[[UIApplication sharedApplication] scheduleLocalNotification:notif];
}
If I use all three functions at 3.00pm today – so now it should reset for tomorrow's date at 4.00pm.
How do I do that?
Get tomorrow
NSDateComponents *tomorrowComponents = [NSDateComponents new];
tomorrowComponents.day = 1 ;
NSCalendar *gregCalendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDate *tomorrow = [gregCalendar dateByAddingComponents:tomorrowComponents toDate:[NSDate date] options:0];
Add time for tomorrow
NSDateComponents *tomorrowAtTimeComponent = [gregCalendar components:(NSEraCalendarUnit|NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit) fromDate:tomorrow];
tomorrowAtTimeComponent.hour = 16;
tomorrowAtTimeComponent.minute = 0;
NSDate *tomorrowAt4pm = [gregCalendar dateFromComponents:tomorrowAtTimeComponent];
Reset note
[[UIApplication sharedApplication] cancelAllLocalNotifications];
UILocalNotification *notif = [[UILocalNotification alloc] init];
[notif setFireDate:tomorrowAt4pm];
[notif setAlertBody:#"Come back to the app – to use '<function name>' !"];
[notif setRepeatInterval:NSDayCalendarUnit];
[notif setTimeZone:[NSTimeZone defaultTimeZone]];
[[UIApplication sharedApplication] scheduleLocalNotification:notif];

Local notification repeating every day - iOS

I'm using location service in background to update my app every day. In background it parses the XML and sets local notification at 18h, but only if parsed data is different then "No warning". But I'm getting every day notification with same alert body even when I shouldn't. This is how I push notifications.
If(![self.city isEqualToString:#"No warning"]){
// We only need 1 notification
[[UIApplication sharedApplication] cancelAllLocalNotifications];
NSCalendar *gregCalendar = [[NSCalendar alloc]initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *dateComponents = [gregCalendar components: NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit fromDate:[NSDate date]];
[dateComponents setYear:[dateComponents year]];
[dateComponents setMonth:[dateComponents month]];
[dateComponents setDay:[dateComponents day]];
[dateComponents setHour:18];
[dateComponents setMinute:0];
UIDatePicker *dd = [[UIDatePicker alloc]init];
[dd setDate:[gregCalendar dateFromComponents:dateComponents]];
UILocalNotification *notification = [[UILocalNotification alloc]init];
notification.alertBody = [NSString stringWithFormat:#"%# %#",self.date,self.city];
notification.soundName = UILocalNotificationDefaultSoundName;
notification.repeatInterval = 0;
[notification setFireDate:dd.date];
[notification setTimeZone:[NSTimeZone defaultTimeZone]];
[[UIApplication sharedApplication] scheduleLocalNotification:notification];
}

Notification not working

NSCalendar *lbCalendar = [[NSCalendar alloc]init];
NSDateComponents *dateComponent = [lbCalendar components:NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit fromDate:[NSDate date]];
[dateComponent setYear:2014];
[dateComponent setMonth:6];
[dateComponent setDay:15];
[dateComponent setHour:22];
[dateComponent setMinute:29];
UIDatePicker *dp = [[UIDatePicker alloc]init];
[dp setDate:[lbCalendar dateFromComponents:dateComponent]];
UILocalNotification *notification = [[UILocalNotification alloc]init];
[notification setAlertBody:#"Hello Notification"];
[notification setFireDate:dp.date];
[notification setTimeZone:[NSTimeZone defaultTimeZone]];
[application setScheduledLocalNotifications:[NSArray arrayWithObject:notification]];
This is my code in appdelegate.m to show a local notification but it's not working and the code is correct with no errors and the app is lunching correctly but no notifications are shown.
I'm using Xcode 5.1 with SDK 7.0
Try using
NSCalendar *lbCalendar = [NSCalendar currentCalendar];
instead of
NSCalendar *lbCalendar = [[NSCalendar alloc]init];

Scheduled Local Notifications Issue - Firing on a daily basis issue

I've set up multiple Local Notifications on my AppDelegate for my universal app, 14 to be exact. These notifications have specific times and weekdays when they should fire.
The problem is that all of these notifications fire on a daily basis.
For example, I have a notification set for Saturday morning, but it has been showing up daily.
Please give me a suggestion or direction as to why my notifications are firing daily? I can't seem to find a solution.
Please check out my code, thanks!
AppDelegate.m
- (void)applicationDidEnterBackground:(UIApplication *)application {
/*
Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
If your application supports background execution, called instead of applicationWillTerminate: when the user quits.
*/
NSCalendar *gregCalendar = [[NSCalendar alloc]initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *dateComponent = [gregCalendar components:NSWeekdayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit fromDate:[NSDate date]];
[dateComponent setWeekday:2];
[dateComponent setHour:11];
[dateComponent setMinute:44];
UILocalNotification *notification = [[UILocalNotification alloc]init];
[notification setAlertBody:#"GOOD MORNING!"];
[notification setFireDate:[gregCalendar dateFromComponents:dateComponent]];
notification.repeatInterval = NSWeekdayCalendarUnit;
[notification setTimeZone:[NSTimeZone defaultTimeZone]];
[[UIApplication sharedApplication] scheduleLocalNotification:notification];
NSCalendar *gregCalendar1 = [[NSCalendar alloc]initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *dateComponent1 = [gregCalendar1 components:NSWeekdayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit fromDate:[NSDate date]];
[dateComponent1 setWeekday:3];
[dateComponent1 setHour:11];
[dateComponent1 setMinute:44];
UILocalNotification *notification1 = [[UILocalNotification alloc]init];
[notification1 setAlertBody:#"GOOD MORNING!"];
[notification1 setFireDate:[gregCalendar1 dateFromComponents:dateComponent1]];
notification1.repeatInterval = NSWeekdayCalendarUnit;
[notification1 setTimeZone:[NSTimeZone defaultTimeZone]];
[[UIApplication sharedApplication] scheduleLocalNotification:notification1];
NSCalendar *gregCalendar2 = [[NSCalendar alloc]initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *dateComponent2 = [gregCalendar2 components:NSWeekdayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit fromDate:[NSDate date]];
[dateComponent2 setWeekday:4];
[dateComponent2 setHour:11];
[dateComponent2 setMinute:44];
UILocalNotification *notification2 = [[UILocalNotification alloc]init];
[notification2 setAlertBody:#"GOOD MORNING!"];
[notification2 setFireDate:[gregCalendar2 dateFromComponents:dateComponent2]];
notification2.repeatInterval = NSWeekdayCalendarUnit;
[notification2 setTimeZone:[NSTimeZone defaultTimeZone]];
[[UIApplication sharedApplication] scheduleLocalNotification:notification2];
NSCalendar *gregCalendar3 = [[NSCalendar alloc]initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *dateComponent3 = [gregCalendar3 components:NSWeekdayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit fromDate:[NSDate date]];
[dateComponent3 setWeekday:5];
[dateComponent3 setHour:11];
[dateComponent3 setMinute:44];
UILocalNotification *notification3 = [[UILocalNotification alloc]init];
[notification3 setAlertBody:#"GOOD MORNING!"];
[notification3 setFireDate:[gregCalendar3 dateFromComponents:dateComponent3]];
notification3.repeatInterval = NSWeekdayCalendarUnit;
[notification3 setTimeZone:[NSTimeZone defaultTimeZone]];
[[UIApplication sharedApplication] scheduleLocalNotification:notification3];
NSCalendar *gregCalendar4 = [[NSCalendar alloc]initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *dateComponent4 = [gregCalendar4 components:NSWeekdayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit fromDate:[NSDate date]];
[dateComponent4 setWeekday:6];
[dateComponent4 setHour:11];
[dateComponent4 setMinute:44];
UILocalNotification *notification4 = [[UILocalNotification alloc]init];
[notification4 setAlertBody:#"GOOD MORNING!"];
[notification4 setFireDate:[gregCalendar4 dateFromComponents:dateComponent4]];
notification4.repeatInterval = NSWeekdayCalendarUnit;
[notification4 setTimeZone:[NSTimeZone defaultTimeZone]];
[[UIApplication sharedApplication] scheduleLocalNotification:notification4];
NSCalendar *gregCalendar5 = [[NSCalendar alloc]initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *dateComponent5 = [gregCalendar5 components:NSWeekdayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit fromDate:[NSDate date]];
[dateComponent5 setWeekday:2];
[dateComponent5 setHour:14];
[dateComponent5 setMinute:59];
UILocalNotification *notification5 = [[UILocalNotification alloc]init];
[notification5 setAlertBody:#"GOOD AFTERNOON!"];
[notification5 setFireDate:[gregCalendar5 dateFromComponents:dateComponent5]];
notification5.repeatInterval = NSWeekdayCalendarUnit;
[notification5 setTimeZone:[NSTimeZone defaultTimeZone]];
[[UIApplication sharedApplication] scheduleLocalNotification:notification5];
NSCalendar *gregCalendar6 = [[NSCalendar alloc]initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *dateComponent6 = [gregCalendar6 components:NSWeekdayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit fromDate:[NSDate date]];
[dateComponent6 setWeekday:3];
[dateComponent6 setHour:14];
[dateComponent6 setMinute:59];
UILocalNotification *notification6 = [[UILocalNotification alloc]init];
[notification6 setAlertBody:#"GOOD AFTERNOON!"];
[notification6 setFireDate:[gregCalendar6 dateFromComponents:dateComponent6]];
notification6.repeatInterval = NSWeekdayCalendarUnit;
[notification6 setTimeZone:[NSTimeZone defaultTimeZone]];
[[UIApplication sharedApplication] scheduleLocalNotification:notification6];
NSCalendar *gregCalendar7 = [[NSCalendar alloc]initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *dateComponent7 = [gregCalendar7 components:NSWeekdayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit fromDate:[NSDate date]];
[dateComponent7 setWeekday:4];
[dateComponent7 setHour:14];
[dateComponent7 setMinute:59];
UILocalNotification *notification7 = [[UILocalNotification alloc]init];
[notification7 setAlertBody:#"GOOD AFTERNOON!"];
[notification7 setFireDate:[gregCalendar7 dateFromComponents:dateComponent7]];
notification7.repeatInterval = NSWeekdayCalendarUnit;
[notification7 setTimeZone:[NSTimeZone defaultTimeZone]];
[[UIApplication sharedApplication] scheduleLocalNotification:notification7];
NSCalendar *gregCalendar8 = [[NSCalendar alloc]initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *dateComponent8 = [gregCalendar8 components:NSWeekdayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit fromDate:[NSDate date]];
[dateComponent8 setWeekday:5];
[dateComponent8 setHour:14];
[dateComponent8 setMinute:59];
UILocalNotification *notification8 = [[UILocalNotification alloc]init];
[notification8 setAlertBody:#"GOOD AFTERNOON!"];
[notification8 setFireDate:[gregCalendar8 dateFromComponents:dateComponent8]];
notification8.repeatInterval = NSWeekdayCalendarUnit;
[notification8 setTimeZone:[NSTimeZone defaultTimeZone]];
[[UIApplication sharedApplication] scheduleLocalNotification:notification8];
NSCalendar *gregCalendar9 = [[NSCalendar alloc]initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *dateComponent9 = [gregCalendar9 components:NSWeekdayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit fromDate:[NSDate date]];
[dateComponent9 setWeekday:6];
[dateComponent9 setHour:14];
[dateComponent9 setMinute:59];
UILocalNotification *notification9 = [[UILocalNotification alloc]init];
[notification9 setAlertBody:#"GOOD AFTERNOON!"];
[notification9 setFireDate:[gregCalendar9 dateFromComponents:dateComponent9]];
notification9.repeatInterval = NSWeekdayCalendarUnit;
[notification9 setTimeZone:[NSTimeZone defaultTimeZone]];
[[UIApplication sharedApplication] scheduleLocalNotification:notification9];
NSCalendar *gregCalendar10 = [[NSCalendar alloc]initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *dateComponent10 = [gregCalendar10 components:NSWeekdayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit fromDate:[NSDate date]];
[dateComponent10 setWeekday:6];
[dateComponent10 setHour:19];
[dateComponent10 setMinute:59];
UILocalNotification *notification10 = [[UILocalNotification alloc]init];
[notification10 setAlertBody:#"FRIDAY NIGHT!"];
[notification10 setFireDate:[gregCalendar10 dateFromComponents:dateComponent10]];
notification10.repeatInterval = NSWeekdayCalendarUnit;
[notification10 setTimeZone:[NSTimeZone defaultTimeZone]];
[[UIApplication sharedApplication] scheduleLocalNotification:notification10];
NSCalendar *gregCalendar11 = [[NSCalendar alloc]initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *dateComponent11 = [gregCalendar11 components:NSWeekdayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit fromDate:[NSDate date]];
[dateComponent11 setWeekday:7];
[dateComponent11 setHour:9];
[dateComponent11 setMinute:59];
UILocalNotification *notification11 = [[UILocalNotification alloc]init];
[notification11 setAlertBody:#"HAVE A GREAT WEEKEND!"];
[notification11 setFireDate:[gregCalendar11 dateFromComponents:dateComponent11]];
notification11.repeatInterval = NSWeekdayCalendarUnit;
[notification11 setTimeZone:[NSTimeZone defaultTimeZone]];
[[UIApplication sharedApplication] scheduleLocalNotification:notification11];
NSCalendar *gregCalendar12 = [[NSCalendar alloc]initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *dateComponent12 = [gregCalendar12 components:NSWeekdayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit fromDate:[NSDate date]];
[dateComponent12 setWeekday:7];
[dateComponent12 setHour:14];
[dateComponent12 setMinute:58];
UILocalNotification *notification12 = [[UILocalNotification alloc]init];
[notification12 setAlertBody:#"ENJOY YOUR WEEKEND!"];
[notification12 setFireDate:[gregCalendar12 dateFromComponents:dateComponent12]];
notification12.repeatInterval = NSWeekdayCalendarUnit;
[notification12 setTimeZone:[NSTimeZone defaultTimeZone]];
[[UIApplication sharedApplication] scheduleLocalNotification:notification12];
NSCalendar *gregCalendar13 = [[NSCalendar alloc]initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *dateComponent13 = [gregCalendar13 components:NSWeekdayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit fromDate:[NSDate date]];
[dateComponent13 setWeekday:7];
[dateComponent13 setHour:19];
[dateComponent13 setMinute:58];
UILocalNotification *notification13 = [[UILocalNotification alloc]init];
[notification13 setAlertBody:#"SATURDAY NIGHT PARTY!"];
[notification13 setFireDate:[gregCalendar13 dateFromComponents:dateComponent13]];
notification13.repeatInterval = NSWeekdayCalendarUnit;
[notification13 setTimeZone:[NSTimeZone defaultTimeZone]];
[[UIApplication sharedApplication] scheduleLocalNotification:notification13];
}
Thanks!
To fire notifications at a specific day of the week at a specific time, the following code should work:
NSCalendar *gregCalendar = [[NSCalendar alloc]initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *dateComponent = [gregCalendar components:NSYearCalendarUnit | NSWeekCalendarUnit fromDate:[NSDate date]];
[dateComponent setWeekday:2]; // For Monday
[dateComponent setHour:11];
[dateComponent setMinute:44];
NSDate *fireDate = [gregCalendar dateFromComponents:dateComponent];
UILocalNotification *notification = [[UILocalNotification alloc]init];
[notification setAlertBody:#"GOOD MORNING!"];
[notification setFireDate:fireDate];
notification.repeatInterval = NSWeekCalendarUnit;
[notification setTimeZone:[NSTimeZone defaultTimeZone]];
[[UIApplication sharedApplication] scheduleLocalNotification:notification];
The first part computes a date that is either on the next or on the previous monday.
The second part defines the notification with a repeat interval of one week.
It does not matter if the fire date is the previous monday, the "next fire date" will automatically adjusted to the next week. (You can verify that with NSLog(#"%#", notification).)
These lines are causing the notifications to repeat on a daily interval:
notification.repeatInterval = NSWeekdayCalendarUnit;
remove those lines and it should fix your problem. The docs say exactly what this property does:
If you assign an calendar unit such as weekly (NSWeekCalendarUnit) or yearly (NSYearCalendarUnit), the system reschedules the notification for delivery at the specified interval. The default value is 0, which means don't repeat.

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