CODEWITHSUNDEEP
iosswiftxcodepush-notification
user2636197
user2636197

Reputation: 4122

Swift ios check if remote push notifications are enabled in ios9 and ios10

How can I check if the user has enabled remote notifications on ios 9 or ios 10?

If the user has not allowed or clicked No I want to toggle a message asking if they want to enable notifications.

Upvotes: 100

Views: 108480

Answers (13)

Peter Kreinz
Peter Kreinz

Reputation: 8636

My short asynchronously extension:

// UNUserNotificationCenter+Helper.swift

extension UNUserNotificationCenter {
    static func notificationsAllowed() async -> Bool {
        let settings = await UNUserNotificationCenter.current().notificationSettings()

        return !(settings.authorizationStatus == .notDetermined || settings.authorizationStatus == .denied)
    }
}

SwiftUI Example:

 @State private var notificationsAllowed = false

 @MainActor
 private func refresh() {
     Task {
         let notificationsAllowed = await UNUserNotificationCenter.notificationsAllowed()
        
         withAnimation {
             self.notificationsAllowed = notificationsAllowed
         }
     }
 }

Upvotes: 1

Rajat
Rajat

Reputation: 11127

Updated answer after iOS 10 is using UNUserNotificationCenter .

First you need to import UserNotifications then

let current = UNUserNotificationCenter.current()
current.getNotificationSettings(completionHandler: { permission in
    switch permission.authorizationStatus  {
    case .authorized:
        print("User granted permission for notification")
    case .denied:
        print("User denied notification permission")
    case .notDetermined:
        print("Notification permission haven't been asked yet")
    case .provisional:
        // @available(iOS 12.0, *)
        print("The application is authorized to post non-interruptive user notifications.")
    case .ephemeral:
        // @available(iOS 14.0, *)
        print("The application is temporarily authorized to post notifications. Only available to app clips.")
    @unknown default:
        print("Unknow Status")
    }
})

this code will work till iOS 9, for iOS 10 use the above code snippet.

let isRegisteredForRemoteNotifications = UIApplication.shared.isRegisteredForRemoteNotifications
if isRegisteredForRemoteNotifications {
     // User is registered for notification
} else {
     // Show alert user is not registered for notification
}

Upvotes: 81

kuzdu
kuzdu

Reputation: 7524

The new style with async await

 static func getPermissionState() async throws  { 
        let current = UNUserNotificationCenter.current()
        
            let result = await current.notificationSettings()
            switch result.authorizationStatus {
            case .notDetermined:
                //
            case .denied:
                //
            case .authorized:
                //
            case .provisional:
                //
            case .ephemeral:
                //
            @unknown default:
                //
            }
       
    }

Upvotes: 4

Vishal Shelake
Vishal Shelake

Reputation: 622

for iOS12 and Swift 4 also support iOS13 and Swift5 I also created a git for this you can check here

just add this singleton file in your XCode Project

import Foundation
import UserNotifications
import UIKit

class NotificaionStatusCheck {
    
    
    var window: UIWindow?
    
    private var currentViewController : UIViewController? = nil
    
    
     static let shared = NotificaionStatusCheck()
    
    public func currentViewController(_ vc: UIViewController?) {
        self.currentViewController = vc
        checkNotificationsAuthorizationStatus()
    }
    
    
    private func checkNotificationsAuthorizationStatus() {
        let userNotificationCenter = UNUserNotificationCenter.current()
        userNotificationCenter.getNotificationSettings { (notificationSettings) in
            switch notificationSettings.authorizationStatus {
            case .authorized:
                print("The app is authorized to schedule or receive notifications.")
                
            case .denied:
                print("The app isn't authorized to schedule or receive notifications.")
                self.NotificationPopup()
            case .notDetermined:
                print("The user hasn't yet made a choice about whether the app is allowed to schedule notifications.")
                self.NotificationPopup()
            case .provisional:
                print("The application is provisionally authorized to post noninterruptive user notifications.")
                self.NotificationPopup()
            }
        }
        
    }
    
    private func NotificationPopup(){
        let alertController = UIAlertController(title: "Notification Alert", message: "Please Turn on the Notification to get update every time the Show Starts", preferredStyle: .alert)
        let settingsAction = UIAlertAction(title: "Settings", style: .default) { (_) -> Void in
            guard let settingsUrl = URL(string: UIApplication.openSettingsURLString) else {
                return
            }
            if UIApplication.shared.canOpenURL(settingsUrl) {
                UIApplication.shared.open(settingsUrl, completionHandler: { (success) in
                })
            }
        }
        let cancelAction = UIAlertAction(title: "Cancel", style: .default, handler: nil)
        alertController.addAction(cancelAction)
        alertController.addAction(settingsAction)
        DispatchQueue.main.async {
            self.currentViewController?.present(alertController, animated: true, completion: nil)
            
        }
        
    }
    
    
}

to access this code on ViewController user this on viewDidLoad

NotificaionStatusCheck.shared.currentViewController(self)

Upvotes: 9

Mateusz
Mateusz

Reputation: 233

All answers above are almost correct BUT if you have push notifications enabled and all options disabled (alertSetting, lockScreenSetting etc.), authorizationStatus will be authorized and you won't receive any push notifications.

The most appropriate way to find out if you user can receive remote notifications is to check all these setting values. You can achieve it using extensions.

Note: This solution works for iOS 10+. If you support older versions, please read previous answers.

extension UNNotificationSettings {

    func isAuthorized() -> Bool {
        guard authorizationStatus == .authorized else {
            return false
        }

        return alertSetting == .enabled ||
            soundSetting == .enabled ||
            badgeSetting == .enabled ||
            notificationCenterSetting == .enabled ||
            lockScreenSetting == .enabled
    }
}

extension UNUserNotificationCenter {

    func checkPushNotificationStatus(onAuthorized: @escaping () -> Void, onDenied: @escaping () -> Void) {
        getNotificationSettings { settings in
            DispatchQueue.main.async {
                guard settings.isAuthorized() {
                    onDenied()
                    return
                }

                onAuthorized()
            }
        }
    }
}

Upvotes: 4

onmyway133
onmyway133

Reputation: 48115

@Rajat's answer is not enough.

  • isRegisteredForRemoteNotifications is that your app has connected to APNS and get device token, this can be for silent push notification
  • currentUserNotificationSettings is for user permissions, without this, there is no alert, banner or sound push notification delivered to the app

Here is the check

static var isPushNotificationEnabled: Bool {
  guard let settings = UIApplication.shared.currentUserNotificationSettings
    else {
      return false
  }

  return UIApplication.shared.isRegisteredForRemoteNotifications
    && !settings.types.isEmpty
}

For iOS 10, instead of checking for currentUserNotificationSettings, you should use UserNotifications framework

center.getNotificationSettings(completionHandler: { settings in
  switch settings.authorizationStatus {
  case .authorized, .provisional:
    print("authorized")
  case .denied:
    print("denied")
  case .notDetermined:
    print("not determined, ask user for permission now")
  }
})

Push notification can be delivered to our apps in many ways, and we can ask for that

UNUserNotificationCenter.current()
  .requestAuthorization(options: [.alert, .sound, .badge])

User can go to Settings app and turn off any of those at any time, so it's best to check for that in the settings object

open class UNNotificationSettings : NSObject, NSCopying, NSSecureCoding {


    open var authorizationStatus: UNAuthorizationStatus { get }


    open var soundSetting: UNNotificationSetting { get }

    open var badgeSetting: UNNotificationSetting { get }

    open var alertSetting: UNNotificationSetting { get }


    open var notificationCenterSetting: UNNotificationSetting { get }
}

Upvotes: 10

Joey
Joey

Reputation: 2968

Even though user doesn't allow the push notifications, the device token is available. So it would be also a good idea to check if it's allowed to receive the push notifications.

private func checkPushNotificationAllowed(completionHandler: @escaping (Bool) -> Void) {
    if #available(iOS 10.0, *) {
        UNUserNotificationCenter.current().getNotificationSettings { (settings) in
            if settings.authorizationStatus == .notDetermined || settings.authorizationStatus == .denied {
                completionHandler(false)
            }
            else {
                completionHandler(true)
            }
        }
    }
    else {
        if let settings = UIApplication.shared.currentUserNotificationSettings {
            if settings.types.isEmpty {
                completionHandler(false)
            }
            else {
                completionHandler(true)
            }
        }
        else {
            completionHandler(false)
        }
    }
}

Upvotes: 5

Debaprio B
Debaprio B

Reputation: 531

class func isRegisteredForRemoteNotifications() -> Bool {
    if #available(iOS 10.0, *) {
        var isRegistered = false
        let semaphore = DispatchSemaphore(value: 0)
        let current = UNUserNotificationCenter.current()
        current.getNotificationSettings(completionHandler: { settings in
            if settings.authorizationStatus != .authorized {
                isRegistered = false
            } else {
                isRegistered = true
            }
            semaphore.signal()
        })
        _ = semaphore.wait(timeout: .now() + 5)
        return isRegistered
    } else {
        return UIApplication.shared.isRegisteredForRemoteNotifications
    }
}

Upvotes: 4

Ogulcan Orhan
Ogulcan Orhan

Reputation: 5317

Apple recommends to use UserNotifications framework instead of shared instances. So, do not forget to import UserNotifications framework. As this framework is new in iOS 10 it's really only safe to use this code in apps building for iOS10+ 

let current = UNUserNotificationCenter.current()

current.getNotificationSettings(completionHandler: { (settings) in
    if settings.authorizationStatus == .notDetermined {
        // Notification permission has not been asked yet, go for it!
    } else if settings.authorizationStatus == .denied {
        // Notification permission was previously denied, go to settings & privacy to re-enable
    } else if settings.authorizationStatus == .authorized {
        // Notification permission was already granted
    }
})

You may check official documentation for further information: https://developer.apple.com/documentation/usernotifications

Upvotes: 174

Imtee
Imtee

Reputation: 1393

If your app supports iOS 10 and iOS 8, 9 use below code

// At the top, import UserNotifications 
// to use UNUserNotificationCenter
import UserNotifications

Then,

if #available(iOS 10.0, *) {
    let current = UNUserNotificationCenter.current()
    current.getNotificationSettings(completionHandler: { settings in

        switch settings.authorizationStatus {

        case .notDetermined:
            // Authorization request has not been made yet
        case .denied:
            // User has denied authorization.
            // You could tell them to change this in Settings
        case .authorized:
            // User has given authorization.
        }
    })
 } else {
     // Fallback on earlier versions
     if UIApplication.shared.isRegisteredForRemoteNotifications {
         print("APNS-YES")
     } else {
         print("APNS-NO")
     }
 }

Upvotes: 33

tylerSF
tylerSF

Reputation: 1539

I tried Rajat's solution, but it didn't work for me on iOS 10 (Swift 3). It always said that push notifications were enabled. Below is how I solved the problem. This says "not enabled" if the user has tapped "Don't Allow" or if you have not asked the user yet. 

let notificationType = UIApplication.shared.currentUserNotificationSettings!.types
    if notificationType == [] {
        print("notifications are NOT enabled")
    } else {
        print("notifications are enabled")
    }

PS: The method currentUserNotificationSettings was deprecated in iOS 10.0 but it's still working.

Upvotes: 40

Oscar Apeland
Oscar Apeland

Reputation: 6662

Here's a solution for getting a string describing the current permission that works with iOS 9 trough iOS 11, with Swift 4. This implementation uses When for promises. 

import UserNotifications

private static func getNotificationPermissionString() -> Promise<String> {
    let promise = Promise<String>()

    if #available(iOS 10.0, *) {
        let notificationCenter = UNUserNotificationCenter.current()
        notificationCenter.getNotificationSettings { (settings) in
            switch settings.authorizationStatus {
            case .notDetermined: promise.resolve("not_determined")
            case .denied: promise.resolve("denied")
            case .authorized: promise.resolve("authorized")
            }
        }
    } else {
        let status = UIApplication.shared.isRegisteredForRemoteNotifications ? "authorized" : "not_determined"
        promise.resolve(status)
    }

    return promise
}

Upvotes: 7

joel prithivi
joel prithivi

Reputation: 340

in iOS11, Swift 4...

 UNUserNotificationCenter.current().getNotificationSettings { (settings) in
        if settings.authorizationStatus == .authorized {
            // Already authorized
        }
        else {
            // Either denied or notDetermined
            UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound, .badge]) {
                (granted, error) in
                  // add your own 
                UNUserNotificationCenter.current().delegate = self
                let alertController = UIAlertController(title: "Notification Alert", message: "please enable notifications", preferredStyle: .alert)
                let settingsAction = UIAlertAction(title: "Settings", style: .default) { (_) -> Void in
                    guard let settingsUrl = URL(string: UIApplicationOpenSettingsURLString) else {
                        return
                    }
                    if UIApplication.shared.canOpenURL(settingsUrl) {
                        UIApplication.shared.open(settingsUrl, completionHandler: { (success) in
                        })
                    }
                }
                let cancelAction = UIAlertAction(title: "Cancel", style: .default, handler: nil)
                alertController.addAction(cancelAction)
                alertController.addAction(settingsAction)
                DispatchQueue.main.async {
                    self.window?.rootViewController?.present(alertController, animated: true, completion: nil)

                }
            }
        }
    }

Upvotes: 21

Related Questions