iOS Local Notification Objective-C

AppDelegate.m

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    if ([application respondsToSelector:@selector(registerUserNotificationSettings:)]) {
        UIUserNotificationSettings *userNotificationSettings = [UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeAlert | UIUserNotificationTypeBadge)
                                                                                                 categories:nil];
        [application registerUserNotificationSettings:userNotificationSettings];
    }

    return YES;
}

- (void)applicationDidEnterBackground:(UIApplication *)application
{
    NSDate *alarmtime = [[NSDate date] dateByAddingTimeInterval:60*60*24]; // 24 hours (60*60*24) after closing the application
    UIApplication *app = [UIApplication sharedApplication];
    UILocalNotification *localNotificationAlarm = [[UILocalNotification alloc] init];

    if (localNotificationAlarm) {
        localNotificationAlarm.fireDate = alarmtime;
        localNotificationAlarm.timeZone = [NSTimeZone defaultTimeZone];
        localNotificationAlarm.repeatInterval = 0;
        localNotificationAlarm.alertBody = @"Body Notification";
        localNotificationAlarm.alertTitle = @"Title Notification";
        [app scheduleLocalNotification:localNotificationAlarm];
    }
}

- (void)applicationWillEnterForeground:(UIApplication *)application
{
    UIApplication *app = [UIApplication sharedApplication];
    NSArray *oldNotifications = [app scheduledLocalNotifications];
    if (oldNotifications.count > 0) {
        [app cancelAllLocalNotifications];
    }
}