UserNotification in 3 days then repeat every day/hour - iOS 10

Question

UILocalNotification has been depreciated so I would like to update my code to the UserNotification framework:

let alertDays = 3.0
let alertSeconds = alertDay         


        

Answer 1

It seems like this is not supported, but to make a workaround you could use:

let alertDays = 3.0
let daySeconds = 86400
let alertSeconds = alertDays * daySeconds

let content: UNMutableNotificationContent = UNMutableNotificationContent()

content.title = "Reminder Title"
content.subtitle = "Reminder Subtitle"
content.body = "Reminder Message"

let trigger = UNTimeIntervalNotificationTrigger.init(timeInterval: (alertSeconds), repeats: false)

let request = UNNotificationRequest(identifier: workoutAlarmIdentifier,
                                    content: content,
                                    trigger: trigger)

UNUserNotificationCenter.current().add(request)
{
    (error) in // ...
}

in combination with didReceive(_:withContentHandler:) you can use:

let trigger = UNTimeIntervalNotificationTrigger.init(timeInterval: (daySeconds), repeats: false)

I know this isn't optimal but it should work without using deprecated classes/methods. You use repeats: false since you are intercepting the notification just before the user receives it and creating a new notification. Additionally you can use it in combination with UNNotificationAction and UNNotificationCategory if you handle multiple notifications.