UNUserNotificationCenter didRecieve Response is not called if App is terminated
Solution 1
From my own experimentation, receiving local notifications in Swift 3 & Xcode 8 are as follows:
Conformance
Conform to
UNUserNotificationCenterDelegate
class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate { .... }
Register as Notification Center's delegate:
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool { let center = UNUserNotificationCenter.current() center.delegate = self return true }
Delegate Methods
Respond to missed notifications (e.g. user viewing app when notification sent)
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: (UNNotificationPresentationOptions) -> Void) { print(notification.request.content.userInfo) }
Respond to actioned notifications (e.g. user opened notification)
func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: () -> Void) { print(response.notification.request.content.userInfo) }
Solution 2
Swift 3.1 Update
Conform to UNUserNotificationCenterDelegate
Register as Notification Center's delegate:
UNUserNotificationCenter.current().delegate = self
- Delegate Methods
public func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
print(response.notification.request.content.categoryIdentifier)
}
public func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
print(notification.request.content.categoryIdentifier)
}
Kautsya Kanu
Updated on June 08, 2022Comments
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Kautsya Kanu almost 2 years
UNUserNotificationCenter function is not called on clicking Action Button Chat in Notification after 3D Touch if App is not active(not even in Background or say has terminated). I used "attach to process by name" in Xcode to debug app when app was terminated. Here is the Code:
import UIKit import Mixpanel import UserNotifications @UIApplicationMain class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate { func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool { //setup mixpanel self.handlePushNotificationWithUserInfo(launchOptions: launchOptions) //ask for push notification perms return true }
When Notification Pop-up (Sent from MixPanel) this function is called first,
Call 1:
func handlePushNotificationWithUserInfo(launchOptions: [NSObject: AnyObject]?) { //Handle PushNotification when app is opened }
Then It goes here,
Call 2:
//register for notification func application(_ application: UIApplication, didRegister notificationSettings: UIUserNotificationSettings) { if #available(iOS 10.0, *) { let center = UNUserNotificationCenter.current() center.requestAuthorization(options: [.alert, .sound]) { (granted, error) in // Enable or disable features based on authorization. } center.delegate = self let actionChat = UNNotificationAction(identifier: Constants.ActionType.CHAT.rawValue, title: "Chat", options: [.foreground]) let categoryOptions = UNNotificationCategoryOptions(rawValue: 0) let customerSupportCategory = UNNotificationCategory(identifier: Constants.NotificationType.CUSTOMER_SUPPORT.rawValue, actions: [actionChat], intentIdentifiers: [], options: categoryOptions) center.setNotificationCategories([customerSupportCategory]) } application.registerForRemoteNotifications() }
Call 3:
// remote notification func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) { ....Some Code.... }
But below function is not called. But if app is running in background then below function is called and all works fine OTHERWISE App comes to foreground and chat does not after that.
// action buttons in enhanced Notification @available(iOS 10, *) func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: () -> Void) { guard let action = Constants.ActionType(rawValue: response.actionIdentifier) else { completionHandler() return } switch action { case .CHAT: _ = self.handleRemoteUrl(NSURL(string: "chat") as? URL) default: _ = self.handleRemoteUrl(NSURL(string: "chat") as? URL) } completionHandler() } @available(iOS 10.0, *) func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: (UNNotificationPresentationOptions) -> Void) { completionHandler([.alert, .sound]) } }
This function is never called may be because it's depreciated in iOS 10 over userNotificationCenter(), not sure. Please explain this also..
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject]) { ....Some Code.... }
I am using iPhone 6s iOS 10 as debugging device. XCode 8 beta-3
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Kautsya Kanu over 7 yearsYes, Actually I have done all these steps.. Later I found my mistake but have not added answer and expiation yet, So I just added RegisterNotification.sharedHandler.registerFor3dTouchInNotification(appDelegate: self) in func handlePushNotificationWithUserInfo(launchOptions: [NSObject: AnyObject]?) which register category every time we get notification, Not sure if it is correct way but It solved my problem..
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Hugues BR over 6 yearsnot the case anymore with
UNUserNotificationCenter
, delegate is always called... -
ArgaPK about 6 yearscould you please tel me which method gets executed when your app is in background and receives notification?
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ArgaPK about 6 years@HuguesBR could you please tel me which method gets executed when the app is in background and receives notiification?
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Finn Gaida over 5 yearsThis fixed it for me! Emphasis lies on registering the Notification center delegate directly in
appDidFinishLaunching
and no later. -
djneely over 5 yearsThank you! My issue was the appDidFinishLaunching as I have notification registration being handled after login. For the delegate I moved this to the appDidFinishLaunching and things are working well.