Notification alert not working - ios

Question

ViewController.m
- (IBAction)setAlarm:(id)sender {
[defaults setBool:YES forKey:#"notificationIsActive"];
[defaults synchronize];
//self.message.text=#"Notifications Started";
NSTimeInterval interval;
interval = 10;
NSLog(#"time interval.....%f",interval);
UILocalNotification* localNotification = [[UILocalNotification alloc] init];
localNotification.fireDate = [NSDate dateWithTimeIntervalSinceNow:interval]; //Enter the time here in seconds.
localNotification.alertBody= #"This is message Users will see";
localNotification.timeZone = [NSTimeZone defaultTimeZone];
localNotification.repeatInterval= NSCalendarUnitDay;//NSCalendarUnitMinute;
//Repeating instructions here.
localNotification.soundName= UILocalNotificationDefaultSoundName;
[[UIApplication sharedApplication] scheduleLocalNotification:localNotification];
}
I use this code for notification alert with button click. This code works with my app for several times to give notification alert. But suddenly it stops working. Please help.

Answer 1

If you're on iOS 10 & above, Apple Doc says
UILocalNotification is deprecated in iOS 10. Use UNNotificationRequest
instead. A UILocalNotification object specifies a notification that an
app can schedule for presentation at a specific date and time.
Reference Links:
UserNotifications
Local Notification in iOS 10 for Objective-C and Swift 3

Answer 2

You need to use it for iOS 10 and later.
UNMutableNotificationContent *content = [UNMutableNotificationContent new];
content.title = #"Don't forget";
content.body = #"Buy some milk";
content.sound = [UNNotificationSound defaultSound];
At a certain time
NSDateComponents* date = [[NSDateComponents alloc] init];
date.hour = 7;
date.minute = 0;
UNCalendarNotificationTrigger* trigger = [UNCalendarNotificationTrigger
triggerWithDateMatchingComponents:date repeats:NO];
UNNotificationRequest* request = [UNNotificationRequest requestWithIdentifier:#"MorningAlarm" content:content trigger:trigger];