I have a problem with my UILocalNotification.
I am scheduling the notification with my method.
- (void) sendNewNoteLocalReminder:(NSDate *)date alrt:(NSString *)title
{
// some code ...
UILocalNotification *localNotif = [[UILocalNotification alloc] init];
if (localNotif == nil)
return;
localNotif.fireDate = itemDate;
localNotif.timeZone = [NSTimeZone defaultTimeZone];
localNotif.alertAction = NSLocalizedString(@"View Details", nil);
localNotif.alertBody = title;
localNotif.soundName = UILocalNotificationDefaultSoundName;
localNotif.applicationIconBadgeNumber = 0;
NSDictionary *infoDict = [NSDictionary dictionaryWithObject:stringID forKey:@"id"];
localNotif.userInfo = infoDict;
[[UIApplication sharedApplication] scheduleLocalNotification:localNotif];
[localNotif release];
}
Its work fine and I'm correctly receiving the notification. The problem is when I should cancel the notification. Im using this method.
- (void) deleteNewNoteLocalReminder:(NSString*) reminderID noteIDe:(NSInteger)noteIDE
{
[[UIApplication sharedApplication] cancelLocalNotification:(UILocalNotification *)notification ????
}
Im not sure what to do here, but my questions are:
How do I know which UILocalNotification object I should delete?
Is there a way to list all notifications?
The only thing I have is the ID of which reminder I should delete.
I was thinking about to save the UILocalNotification object in my "Note" object and get it that way, and when I saving to my SQLite database serialize the object and so on ... is there a smarter way?
My solution is to use the UILocalNotification
userInfo dictionary. In fact what I do is to generate a unique ID for each of my notifications (of course this ID is something I'm able to retrieve later), then when I want to cancel the notification associated to a given ID I will simply scan all available notifications using the array:
[[UIApplication sharedApplication] scheduledLocalNotifications]
and then I try to match the notifications by investigating the ID. E.g.:
NSString *myIDToCancel = @"some_id_to_cancel";
UILocalNotification *notificationToCancel=nil;
for(UILocalNotification *aNotif in [[UIApplication sharedApplication] scheduledLocalNotifications]) {
if([[aNotif.userInfo objectForKey:@"ID"] isEqualToString:myIDToCancel]) {
notificationToCancel=aNotif;
break;
}
}
if(notificationToCancel) [[UIApplication sharedApplication] cancelLocalNotification:notificationToCancel];
I don't know if this approach is better or not with respect to the Archiving/Unarchving one, however it works and limits data to be saved to just an ID.
Edit: there was a missing braket