iPhone : Daily local notifications

Question

I am trying to implement local notification

This is what I have set

    // Current date
    NSDate *date = [NSDate date]; 

    // Add one minute to the current time
    NSDate *dateToFire = [date dateByAddingTimeInterval:20];

    // Set the fire date/time
    [localNotification setFireDate:dateToFire];
    [localNotification setTimeZone:[NSTimeZone defaultTimeZone]];

Instead of 20, I want to put a fixed time(daily)to start push.

For ex:I want to push notification pop up at every 6:00AM.

How can do that ?

Thanks

Nate · Accepted Answer · 2012-07-04T07:24:23.210

27

You just need to properly create a NSDate object to be your fire date (time). Instead of using [NSDate dateByAddingTimeInterval: 20], use something like this:

NSCalendar *calendar = [NSCalendar currentCalendar];
NSDateComponents *components = [[NSDateComponents alloc] init];
[components setDay: 3];
[components setMonth: 7];
[components setYear: 2012];
[components setHour: 6];
[components setMinute: 0];
[components setSecond: 0];
[calendar setTimeZone: [NSTimeZone defaultTimeZone]];
NSDate *dateToFire = [calendar dateFromComponents:components];

Here are the Apple NSDateComponents API docs

And then when you add the date to the notification, set the repeat interval to one day:

[localNotification setFireDate: dateToFire];
[localNotification setTimeZone: [NSTimeZone defaultTimeZone]];
[localNotification setRepeatInterval: kCFCalendarUnitDay];

As with all date related code, make sure to test how this works during the switch to daylight savings time, if your time zone uses daylight savings time.

edited Jul 04 '12 at 07:24

answered Jul 03 '12 at 03:28

Nate

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on console i tried out to find the fire date,which is "2012-07-03 00:30:00 +0000" i am not sure, will this fire everyday? – Shishir.bobby Jul 04 '12 at 03:27
@iscavengers, It will fire every day if you set the repeat interval to `kCFCalendarUnitDay`, as I showed in the code above – Nate Jul 04 '12 at 07:23
how this will be translated to SWIFT? – Yestay Muratov Jun 18 '15 at 07:21
@YestayMuratov, this is an old question. I'd recommend asking a new question [with the Ask button](http://stackoverflow.com/questions/ask), specifying that you want answers for Swift. Thanks. – Nate Jun 18 '15 at 07:40
What to do if i wants to fire it everyday with 3 Different times ? – Mohit Jan 06 '17 at 11:27

score 3 · Answer 2 · edited May 23 '17 at 12:09

3

I guess what you need is NSDayCalendarUnit.

You can check this answer. And here is another tutorial worth reading.

edited May 23 '17 at 12:09

Community

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answered Jul 03 '12 at 03:28

Selkie

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score 1 · Answer 3 · edited Jul 17 '13 at 06:21

 NSDate *alertTime = [[NSDate date] dateByAddingTimeInterval:10];
    UIApplication* app = [UIApplication sharedApplication];

    UILocalNotification* notifyAlarm = [[[UILocalNotification alloc] init] autorelease];
    if (notifyAlarm)
    {
        notifyAlarm.fireDate = alertTime;
        notifyAlarm.timeZone = [NSTimeZone defaultTimeZone];
        notifyAlarm.repeatInterval = 0;
        notifyAlarm.soundName = @"Glass.aiff";
        notifyAlarm.alertBody = @"Staff meeting in 30 minutes";

        [app scheduleLocalNotification:notifyAlarm];
    }

iPhone : Daily local notifications

3 Answers3

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