Implement SwiftUI Notifications

Question

I am trying to implement notifications in my SwiftUI app, but have not managed to do so after extensive research on Google and other search engines.

SwiftUI has nothing to do with notifications don’t limit your search to SwiftUI results. There are websites were you can hire mentors or freelancers to provide 1:1 help. We don’t have enough information to help you troubleshoot. — lorem ipsum, Nov 25 '22 at 02:22
Does this answer your question? [How to set up push notifications in Swift](https://stackoverflow.com/questions/24899257/how-to-set-up-push-notifications-in-swift) — Nicolapps, Nov 25 '22 at 03:51
Can you give an example of the type of notification that you’re looking to create? — jnpdx, Nov 25 '22 at 03:53

CryptoAlgorithm · Accepted Answer · 2023-07-22T07:32:00.547

Here's a simple example on how to use notifications in a SwiftUI app. It requests for permissions and checks if they are granted, and allows you to send a notification if so.

Do note that notifications from apps won't appear if the app they originate from is in the foreground, so I demonstrate closing the app quickly before the notification is sent to view it.

Here's the whole example code the demo uses:

import SwiftUI
import UserNotifications

struct ContentView: View {
    @State private var permissionGranted = false

    private func requestPermissions() {
        UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .badge, .sound]) { success, error in
            if success {
                permissionGranted = true
            } else if let error = error {
                print(error.localizedDescription)
            }
        }
    }

    private func sendNotification() {
        let notificationContent = UNMutableNotificationContent()
        notificationContent.title = "Hello world!"
        notificationContent.subtitle = "Here's how you send a notification in SwiftUI"

        let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 5, repeats: false)
        // you could also use...
        // UNCalendarNotificationTrigger(dateMatching: .init(year: 2022, month: 12, day: 10, hour: 0, minute: 0), repeats: true)

        let req = UNNotificationRequest(identifier: UUID().uuidString, content: notificationContent, trigger: trigger)

        UNUserNotificationCenter.current().add(req)
    }

    var body: some View {
        VStack {
            if !permissionGranted {
                Button("Request Permission") {
                    requestPermissions()
                }
            }

            if permissionGranted {
                Button("Send Notification") {
                    sendNotification()
                }
            }
        }
        .onAppear {
            // Check if we already have permissions to send notifications
            UNUserNotificationCenter.current().getNotificationSettings { settings in
                if settings.authorizationStatus == .authorized {
                    permissionGranted = true
                }
            }
        }
        .padding()
    }
}

Demo video

Implement SwiftUI Notifications

1 Answers1