Why Scheduled UNUserNotification never fire? - ios10

Question

I have a function for schedule a UNUserNotification, I put it into a sample xcode project then it's work - the notification are shown.
But, when I bring it to real project (company's project) then UNUserNotification never show.
here are my code
UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
// create a category
UNNotificationCategory *inviteCategory = [UNNotificationCategory categoryWithIdentifier:#"kNotificationCategoryToDoIdentifier"
actions:#[]
intentIdentifiers:#[]
options:UNNotificationCategoryOptionCustomDismissAction];
NSSet *categories = [NSSet setWithObject:inviteCategory];
// registration
[center setNotificationCategories:categories];
NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
NSDateComponents *fireDateomponents = [gregorian components:(NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay | NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond)
fromDate:[NSDate date]];
NSDateComponents * dateComponents = [[NSDateComponents alloc] init];
dateComponents.calendar = gregorian;
dateComponents.timeZone = [NSTimeZone localTimeZone];
dateComponents.year = fireDateomponents.year;
dateComponents.month = fireDateomponents.month;
dateComponents.day = fireDateomponents.day;
dateComponents.hour = fireDateomponents.hour;
dateComponents.minute = fireDateomponents.minute;
dateComponents.second = fireDateomponents.second + 10;
//Setup notification Triger
UNCalendarNotificationTrigger * trigger = [UNCalendarNotificationTrigger triggerWithDateMatchingComponents:dateComponents
repeats:NO];
UNMutableNotificationContent * content = [UNMutableNotificationContent new];
content.title = #"params.title";
content.body = #"params.body";
content.sound = [UNNotificationSound defaultSound];
content.badge = #(10);
content.categoryIdentifier = #"kNotificationCategoryToDoIdentifier";
//Crreate Notification Request
UNNotificationRequest * request = [UNNotificationRequest requestWithIdentifier:#"requestId"
content:content trigger:trigger];
//Schedule Notification
[[UNUserNotificationCenter currentNotificationCenter] addNotificationRequest:request withCompletionHandler:^(NSError * theError){
NSLog(#"Scheduled : %#", [dateComponents date]);
NSLog(#"WScheduled");
}];
Please help me !
Thanks a lot!

Answer 1

You should check your trigger.nextDate. I guess your trigger.nextDate is the time which you set trigger, but when the request is added into center, the nowtime is later than trigger.nextDate. So UNUserNotification never shows.
Have a try at
[[UNUserNotificationCenter currentNotificationCenter] addNotificationRequest:request withCompletionHandler:^(NSError * theError){
NSLog(#"Scheduled : %#", [dateComponents date]);
NSLog(#"Scheduled1 : %#", [trigger nextDate]);
NSLog(#"Scheduled2 : %#", [NSDate date]);
NSLog(#"WScheduled");
}];