Reschedule notification on notification action doesn't work Swift

Question

I'm trying to reschedule a notification when user tap on wait notification action. When triggerNotification() gets called the first time Dateis provided by a Date Picker, but when it's called by a response gets the date from a time interval. Inside the didReceiveResponsemethod case:waitActionIdentifier: I set newDate and pass that to the triggerNotificationparameter. The delayed notification never arrives. I don't understand if it's a function calling problem or else because newDatei see is correct by the print of it. Here's the code:

class ViewController: UIViewController {
    @IBAction func datePickerDidSelectNewDate(_ sender: UIDatePicker) {

        let selectedDate = sender.date
        let delegate = UIApplication.shared.delegate as? AppDelegate
//        delegate?.scheduleNotification(at: selectedDate)
        delegate?.triggerNotification(at: selectedDate)
    }
}

and the AppDelegate

import UIKit
import UserNotifications

@UIApplicationMain class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate {
    var window: UIWindow?



    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        UNUserNotificationCenter.current().delegate = self
        configureCategory()
        triggerNotification(at: Date())
        requestAuth()

        return true
    }


     let category = "Notification.Category.Read"

    private let readActionIdentifier = "Read"
    private let waitActionIdentifier = "Wait"

    private func requestAuth() {
        UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound, .badge]) { (success, error) in
            if let error = error {
                print("Request Authorization Failed (\(error), \(error.localizedDescription))")
            }
        }
    }

    func triggerNotification(at date: Date) {
        // Create Notification Content
        let notificationContent = UNMutableNotificationContent()

        //compone a new Date components because components directly from Date don't work
        let calendar = Calendar(identifier: .gregorian)
        let components = calendar.dateComponents(in: .current, from: date)
        let newComponents = DateComponents(calendar: calendar, timeZone: .current, month: components.month, day: components.day, hour: components.hour, minute: components.minute)
        //create the trigger with above new date components, with no repetitions
        let trigger = UNCalendarNotificationTrigger(dateMatching: newComponents, repeats: false)

        // Configure Notification Content
        notificationContent.title = "Hello"
        notificationContent.body = "Kindly read this message."

        // Set Category Identifier
        notificationContent.categoryIdentifier = category

        // Add Trigger
//        let notificationTrigger = UNTimeIntervalNotificationTrigger(timeInterval: 10.0, repeats: false)

//        // Create Notification Request
        let notificationRequest = UNNotificationRequest(identifier: "test_local_notification", content: notificationContent, trigger: trigger)
//
        // Add Request to User Notification Center
        UNUserNotificationCenter.current().add(notificationRequest) { (error) in
            if let error = error {
                print("Unable to Add Notification Request (\(error), \(error.localizedDescription))")
            }
        }
    }

    private func configureCategory() {
        // Define Actions
        let read = UNNotificationAction(identifier: readActionIdentifier, title: "Read", options: [])
        let wait = UNNotificationAction(identifier: waitActionIdentifier, title : "Wait", options: [])
        // Define Category
        let readCategory = UNNotificationCategory(identifier: category, actions: [read, wait], intentIdentifiers: [], options: [])

        // Register Category
        UNUserNotificationCenter.current().setNotificationCategories([readCategory])
    }

    func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
        completionHandler([.alert])
    }

    func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
        switch response.actionIdentifier
        {
        case readActionIdentifier:
           print("Read tapped")
        case waitActionIdentifier:
            let actualDate = Date()
            let newDate: Date = Date(timeInterval: 10, since: actualDate)
            self.triggerNotification(at: newDate)
            print("Wait tapped")
            print(actualDate)
            print(newDate)
        default:
            print("Other Action")
        }

        completionHandler()
    }


}

Answer 1

After trying different thing with @VIP-DEV and @Honey I finally understood where the problem with rescheduling notification when tapping on the wait action button from the notification. Inside the func triggerNotification(at date: Date)scope I was getting the date components without seconds let newComponents = DateComponents(calendar: calendar, timeZone: .current, month: components.month, day: components.day, hour: components.hour, minute: components.minute)so when the new call of the function was made with a let newDate: Date = Date(timeInterval: 5.0 , since: actualDate)date, of course those seconds weren't taken into account and the date used was already passed, hence..no rescheduling . let newComponents = DateComponents(calendar: calendar, timeZone: .current, month: components.month, day: components.day, hour: components.hour, minute: components.minute, second: components.second) is the final date with components including seconds.