Can I dismiss the local notification when next time the app launch?

Question

I know I can cancel the notification when user tap this notification in notification center . But can I cancel the notification in other palce where I can't get the related local notification from system. Can I serialize the local notification, and cancel it when the app runs next time?

Sorry for make you misunderstand!

I want to dismiss a posted notification in the notification center, but not a scheduled one. So what I want to ask is how to save the local notification object, then I can use it dismiss itself when next time the app launch. Maybe this job can't be done with current sdk.

score 2 · Answer 1 · answered Jan 31 '13 at 04:45

If you need to cancel all notification you can use:

[[UIApplication sharedApplication] cancelAllLocalNotifications];

For cancelling a particular notification:

[[UIApplication sharedApplication] cancelLocalNotification:aNotification];

For getting the particular Notification you can use:

NSArray *notifArray = [[UIApplication sharedApplication] scheduledLocalNotifications];
for (int i = 0; i < [notifArray count]; i++)
{
    UILocalNotification *aEvent = [notifArray objectAtIndex:i];
    NSDictionary *userInfo = aEvent.userInfo;
    NSString *notifId=[NSString stringWithFormat:@"%@",[userInfo valueForKey:@"id"]];
    if ([id isEqualToString:cancelId])
    {
        [[UIApplication sharedApplication] cancelLocalNotification:aEvent];
        break;
    }
}

Here:

You need to store a id key value pair in the userInfo of your notification for identifying particular local notification
cancelId is the id of notification which you want to cancel (Stored in user info)

I think this is not I want. I want to dismiss a posted notification in the notification center, but not a scheduled one — NewXcoder, Jan 31 '13 at 07:04
This does not answer the question. The question deals with cancelling already delivered notifications, not scheduled ones. — steveluscher, May 14 '13 at 00:47
@steveluscher: You are correct, but he edited his question after I answered, Please check the edited date. The bold part was not there in his original question. — Midhun MP, May 14 '13 at 04:24

Vinayak Kini · Answer 2 · 2013-01-31T04:38:38.877

1

Use this Code to get all scheduled notifications:

NSArray *reminderArray=[[UIApplication sharedApplication]scheduledLocalNotifications];

Then you can select the notification required and delete it.

[[UIApplication sharedApplication]cancelLocalNotification:yourNotification];

edited Jan 31 '13 at 04:38

answered Jan 31 '13 at 04:14

Vinayak Kini

2,919
21
35

This does not answer the question. The question deals with cancelling already delivered notifications, not scheduled ones. – steveluscher May 14 '13 at 00:46

score 1 · Answer 3 · answered Jan 31 '13 at 04:16

1

If you save a link to your notification, then you will can cancel it before it fires.

[[UIApplication sharedApplication]cancelLocalNotification:yourNotification];

answered Jan 31 '13 at 04:16

Evgeniy Gushchin

681
3
8

Indeed you can, but if your app resigns before you get a chance to make use of it, the reference to the `UILocalNotification` will go with it. – steveluscher May 14 '13 at 00:45
You can save reference to UILocalNotification to User Defaults or to another place – Evgeniy Gushchin Jul 21 '15 at 05:41

Can I dismiss the local notification when next time the app launch?

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