Set local notification

AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.
    
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 80000
    
    [[UIApplication sharedApplication] registerUserNotificationSettings:
     [UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge)
                                       categories:nil]];
    
    [[UIApplication sharedApplication] registerForRemoteNotifications];
    
#else
    [[UIApplication sharedApplication] registerForRemoteNotificationTypes:
     (UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert)];
    
#endif
    
    // Handle launching from a notification
    UILocalNotification *localNotif =
    [launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey];
    if (localNotif) {
        NSLog(@"Recieved Notification %@",localNotif);
        application.applicationIconBadgeNumber = localNotif.applicationIconBadgeNumber-1;
    }
    
    return YES;
}

- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification {
    // Handle the notificaton when the app is running
    if (notification) {
        NSLog(@"Recieved Notification %@", notification);
        application.applicationIconBadgeNumber = notification.applicationIconBadgeNumber-1;
    }

}

ViewController

- (void)setNotificationWithDate:(NSDate *)date
{
    NSCalendar *calendar = [NSCalendar autoupdatingCurrentCalendar];
    
    // Break the date up into components
    NSDateComponents *dateComponents = [calendar components:( NSYearCalendarUnit | NSMonthCalendarUnit |  NSDayCalendarUnit )
                                                   fromDate:date];
    NSDateComponents *timeComponents = [calendar components:( NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit )
                                                   fromDate:date];
    // Set up the fire time
    NSDateComponents *dateComps = [[NSDateComponents alloc] init];
    [dateComps setDay:[dateComponents day]];
    [dateComps setMonth:[dateComponents month]];
    [dateComps setYear:[dateComponents year]];
    [dateComps setHour:[timeComponents hour]];
    // Notification will fire in one minute
    [dateComps setMinute:[timeComponents minute]];
    [dateComps setSecond:[timeComponents second]];
    NSDate *itemDate = [calendar dateFromComponents:dateComps];
    
    UILocalNotification *localNotification = [[UILocalNotification alloc] init];
    if (localNotification == nil) {
        return;
    }
    
    localNotification.fireDate = itemDate;
    localNotification.timeZone = [NSTimeZone defaultTimeZone];
    
    NSDateFormatter *dateFormatter=[[NSDateFormatter alloc] init];
    [dateFormatter setDateFormat:@"HH:mm:ss yyyy-MM-dd"];
    
    // Notification details
    localNotification.alertBody = [NSString stringWithFormat:@"Просмотр события в %@", [dateFormatter stringFromDate:date]];
    // Set the action button
    localNotification.alertAction = @"Смотреть";
    //localNotification.
    
    localNotification.soundName = UILocalNotificationDefaultSoundName;
    localNotification.applicationIconBadgeNumber = 1;
    
    // Specify custom data for the notification
    NSDictionary *infoDict = [NSDictionary dictionaryWithObject:@"someValue" forKey:@"someKey"];
    localNotification.userInfo = infoDict;
    
    // Schedule the notification
    [[UIApplication sharedApplication] scheduleLocalNotification:localNotification];
}