UILocalNotification helps to schedule specific notification for the user on specific date & time. As the name suggests that its handled & called from inside the application locally. So it can work without internet connection.

Its used in an application for various purpose like :

  • Keeping user active into application & make sure app usage increases
  • Notify for some reminders in the application
  • Used as a reminder feature inside the application
  • Keep highlighting for the features inside the application
  • Daily usage reminder for the application

So here is the tutorial about how we can create a UILocalNotification & manage it.

Objective C :

 

Create new notification :

-(void)doCreateLocalNotification {

NSDate *now = [NSDate date];

NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];

NSDateComponents *components = [calendar components:NSCalendarUnitYear|NSCalendarUnitMonth|NSCalendarUnitDay fromDate:now];

[components setHour:18];

[components setMinute:1];

[components setSecond:10];

NSDate *firedate = [calendar dateFromComponents:components];

UILocalNotification *notification = [[UILocalNotification alloc] init];

notification.fireDate = firedate;

notification.alertBody = @”Hey how are you ? Have you used application today ?”;

notification.repeatInterval = NSCalendarUnitDay;

[[UIApplication sharedApplication] scheduleLocalNotification:notification];

}

Destry all local notifications :

-(void)doDestryNotification {

[[UIApplication sharedApplication] setApplicationIconBadgeNumber: 0];

[[UIApplication sharedApplication] cancelAllLocalNotifications];

}

Read more: Healthy iOS Development Tips & Tricks

Swift :

 

Create new notification :

func doCreateReminder() {

let dateToFire = NSDate().addingTimeInterval(60*60*24*7)

let notification = UILocalNotification()

notification.fireDate = dateToFire as Date

notification.alertBody = NSLocalizedString(“localalert”, comment: “”)

let dict:NSDictionary = [“type” : “reminder”]

notification.userInfo = dict as! [String : String]

notification.repeatInterval = NSCalendar.Unit(rawValue: UInt(0))

notification.soundName = UILocalNotificationDefaultSoundName

UIApplication.shared.scheduleLocalNotification(notification)

}

Destry all local notifications :

func doDestryAllNotification() {

UIApplication.shared.applicationIconBadgeNumber = 0

UIApplication.shared.cancelAllLocalNotifications()

}

 

Tags: iOS, iOS app, iOS Application Development Services, iPhone Application Development Company, Mobile Apps Development, Update
Share
Share