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Description
Description
When trying to setup notifications in Firebase (with SwiftUI), I followed the guidelines and the app just crashes when trying to setup. I do not get output but a crash ending with:
#0 0x000000010151c2a8 in _dispatch_assert_queue_fail ()
#11 0x000000020dd04680 in _pthread_wqthread ()
Enqueued from com.apple.NSXPCConnection.m-user.com.apple.usernotifications.listener (Thread 3) Queue : com.apple.NSXPCConnection.m-user.com.apple.usernotifications.listener (serial)
#0 0x000000010575b1f0 in dispatch_async ()
#16 0x000000020dd02474 in start_wqthread ()
I'm using Swift 6 and SwiftUI. nonisolated is required to make the program compile (both nonisolated and nonisolated(unsafe) crash the program).
Reproducing the issue
import Firebase
import FirebaseMessaging
import SwiftUI
private final class AppDelegate: NSObject, UIApplicationDelegate, MessagingDelegate, UNUserNotificationCenterDelegate {
func application(
_ application: UIApplication,
didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil
) -> Bool {
FirebaseApp.configure()
Messaging.messaging().delegate = self
UNUserNotificationCenter.current().delegate = self
let authOptions: UNAuthorizationOptions = [.alert, .badge, .sound]
UNUserNotificationCenter.current().requestAuthorization(
options: authOptions,
completionHandler: { _, _ in }
)
application.registerForRemoteNotifications()
return true
}
nonisolated(unsafe) func messaging(_ messaging: Messaging, didReceiveRegistrationToken fcmToken: String?) {
Messaging.messaging().token { token, error in
if let error = error {
print("Error fetching FCM registration token: \(error)")
} else if let token = token {
print("FCM registration token: \(token)")
//self.fcmRegTokenMessage.text = "Remote FCM registration token: \(token)"
}
}
}
nonisolated(unsafe) func userNotificationCenter(
_ center: UNUserNotificationCenter,
willPresent notification: UNNotification,
withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void
) {
completionHandler([.banner, .sound, .badge])
}
nonisolated(unsafe) func userNotificationCenter(
_ center: UNUserNotificationCenter,
didReceive response: UNNotificationResponse,
withCompletionHandler completionHandler: @escaping () -> Void
) {
completionHandler()
}
}
@main
private struct MyApp: App {
@UIApplicationDelegateAdaptor(AppDelegate.self) fileprivate var delegate
var body: some Scene {
WindowGroup {
}
}
}Firebase SDK Version
11.9.0
Xcode Version
16.2
Installation Method
Swift Package Manager
Firebase Product(s)
In-App Messaging
Targeted Platforms
iOS
Relevant Log Output
If using Swift Package Manager, the project's Package.resolved
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If using CocoaPods, the project's Podfile.lock
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