How to make launch URL when clicking on notification?

Question

I created a notification with two actions. One of my actions is called Cancel, and the other is Call. How to make the "Call" action run the URL that is contained in the comment that I added to my code. Here is my code:

func notificationFires(){ /** URL Code: if let url = URL(string: "tel://") { UIApplication.shared.open(url, options: [:]) } **/ let call = UNNotificationAction(identifier:"call", title:"Call", options:[.foreground]) let cancel = UNNotificationAction(identifier: "cancel", title: "Cancel", options: [.destructive ]) let category = UNNotificationCategory(identifier: "category", actions: [call, cancel], intentIdentifiers: [], options: []) UNUserNotificationCenter.current().setNotificationCategories([category]) let notification = UILocalNotification() notification.category = "category" // 2 notification.soundName = UILocalNotificationDefaultSoundName notification.fireDate = datePicker.date // 3 if textField.text == "" { notification.alertBody = "You have a call right now!" } else{ notification.alertBody = self.textField.text } // 4 notification.timeZone = NSTimeZone.default // 5 // 6 notification.applicationIconBadgeNumber = 1 // 7 func application(application: UIApplication!, handleActionWithIdentifier identifier:String!, forLocalNotification notification:UILocalNotification!, completionHandler: (() -> Void)!){ if (identifier == "call"){ if let url = URL(string: "tel://2162964785") { UIApplication.shared.open(url, options: [:]) } }else if (identifier == "cancel"){ } } UIApplication.shared.scheduleLocalNotification(notification) func application(application: UIApplication, didReceiveLocalNotification userInfo: [NSObject : AnyObject], fetchCompletionHandler completionHandler: (UIBackgroundFetchResult) -> Void) { print("Recieved: notification") let center = UNUserNotificationCenter.current() center.removeDeliveredNotifications(withIdentifiers: ["notification"]) } } 

Answer 1

Assuming your notification is working correctly, you can match UNUserNotificationCenterDelegate to handle the call action.

Sort of:

  func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) { if response.actionIdentifier == "call" { let body = response.notification.request.content.body if let url = URL(string: "tel://\(body)") { UIApplication.shared.open(url, options: [:], completionHandler: nil) } } } 

The body constant will be set to the phone number you want to "open".

In addition, it is important to note that this should be verified on a real device. Opening the tel scheme does nothing in the simulator.

UNUserNotificationCenterDelegate reference: https://developer.apple.com/reference/usernotifications/unusernotificationcenterdelegate

EDIT:

You do not call the delegate method. Instead, you implement it. The delegate method is called by UNUserNotificationCenter .

To get this working, it is important to make sure that you assign the UNUserNotificationCenter.current() delegate property to the class that will conform to the UNUserNotificationCenterDelegate protocol.

For example, if you are processing your notification in your AppDelegate , you might have something like the following method:

 func callNotification() { let center = UNUserNotificationCenter.center() // TODO: - Create your actions, category, content, trigger and request... center.delegate = self // Important! center.removeAllPendingNotificationRequests() center.add(request, withCompletionHandler: nil) } 

The above method will be responsible for defining your notification and planning it. For brevity, I left all the code that will determine the notification, as you indicated that this works. Instead, you should notice that the delegate property is set to self .

Then, in the extension, you must make AppDelegate compatible with UNUserNotificationCenterDelegate and implement the necessary methods.

 extension AppDelegate: UNUserNotificationCenterDelegate { func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) { if response.actionIdentifier == "call" { let body = response.notification.request.content.body if let url = URL(string: "tel://\(body)") { UIApplication.shared.open(url, options: [:], completionHandler: nil) } } } } 

Now that your AppDelegate complies with the UNUserNotificationCenterDelegate protocol and you set self ( AppDelegate ) as the UNUserNotificationCenter delegate, your implementation of the userNotification(_:didReceive:withCompletionHandler:) will be called.