This worked for me with version 4.3.0 Firebase.CloudMessaging
public override bool FinishedLaunching(UIApplication app, NSDictionary options)
{
global::Xamarin.Forms.Forms.Init();
Xamarin.Forms.FormsMaterial.Init();
Firebase.Core.App.Configure();
LoadApplication(application: new MyAppTest.App());// Register your app for remote notifications.
if (UIDevice.CurrentDevice.CheckSystemVersion(10, 0))
{
// iOS 10 or later
var authOptions = UNAuthorizationOptions.Alert | UNAuthorizationOptions.Badge | UNAuthorizationOptions.Sound;
UNUserNotificationCenter.Current.RequestAuthorization(authOptions, (granted, error) => {
Console.WriteLine(granted);
});
// For iOS 10 display notification (sent via APNS)
UNUserNotificationCenter.Current.Delegate = this;
// For iOS 10 data message (sent via FCM)
Messaging.SharedInstance.Delegate = this;
Console.WriteLine($”Firebase registration token: {Messaging.SharedInstance.FcmToken}”);
}
else
{
// iOS 9 or before
var allNotificationTypes = UIUserNotificationType.Alert | UIUserNotificationType.Badge | UIUserNotificationType.Sound;
var settings = UIUserNotificationSettings.GetSettingsForTypes(allNotificationTypes, null);
UIApplication.SharedApplication.RegisterUserNotificationSettings(settings);
}
UIApplication.SharedApplication.RegisterForRemoteNotifications();
return base.FinishedLaunching(app, options);
}
public override void RegisteredForRemoteNotifications(UIApplication application, NSData deviceToken)
{
Messaging.SharedInstance.ApnsToken = deviceToken;
//base.RegisteredForRemoteNotifications(application, deviceToken);
}
public override void FailedToRegisterForRemoteNotifications(UIApplication application, NSError error)
{
base.FailedToRegisterForRemoteNotifications(application, error);
}
[Export(“messaging:didReceiveMessage:”)]
public void DidReceiveMessage(Messaging messaging, RemoteMessage remoteMessage)
{
Console.WriteLine($”Firebase registration token: {Messaging.SharedInstance.FcmToken}”);
}
[Export(“messaging:didReceiveRegistrationToken:”)]
public void DidReceiveRegistrationToken(Messaging messaging, string fcmToken)
{
Console.WriteLine($”Firebase registration token: {fcmToken}”);
// TODO: If necessary send token to application server.
// Note: This callback is fired at each app startup and whenever a new token is generated.
}
public override void ReceivedRemoteNotification(UIApplication application, NSDictionary userInfo)
{
// If you are receiving a notification message while your app is in the background,
// this callback will not be fired till the user taps on the notification launching the application.
// TODO: Handle data of notification
// With swizzling disabled you must let Messaging know about the message, for Analytics
//Messaging.SharedInstance.AppDidReceiveMessage (userInfo);
// Print full message.
Console.WriteLine(userInfo);
}
public override void DidReceiveRemoteNotification(UIApplication application, NSDictionary userInfo, Action<UIBackgroundFetchResult> completionHandler)
{
// If you are receiving a notification message while your app is in the background,
// this callback will not be fired till the user taps on the notification launching the application.
// TODO: Handle data of notification
// With swizzling disabled you must let Messaging know about the message, for Analytics
//Messaging.SharedInstance.AppDidReceiveMessage (userInfo);
// Print full message.
Console.WriteLine(userInfo);
completionHandler(UIBackgroundFetchResult.NewData);
}
// Receive displayed notifications for iOS 10 devices.
// Handle incoming notification messages while app is in the foreground.
[Export(“userNotificationCenter:willPresentNotification:withCompletionHandler:”)]
public void WillPresentNotification(UNUserNotificationCenter center, UNNotification notification, Action<UNNotificationPresentationOptions> completionHandler)
{
var userInfo = notification.Request.Content.UserInfo;
// With swizzling disabled you must let Messaging know about the message, for Analytics
//Messaging.SharedInstance.AppDidReceiveMessage (userInfo);
// Print full message.
Console.WriteLine(userInfo);
// Do something with the notification
Console.WriteLine(“Active Notification: {0}”, notification);
// Tell system to display the notification anyway or use
// `None` to say we have handled the display locally.
completionHandler(UNNotificationPresentationOptions.Alert);
}
// Handle notification messages after display notification is tapped by the user.
[Export(“userNotificationCenter:didReceiveNotificationResponse:withCompletionHandler:”)]
public void DidReceiveNotificationResponse(UNUserNotificationCenter center, UNNotificationResponse response, Action completionHandler)
{
var userInfo = response.Notification.Request.Content.UserInfo;
// Print full message.
Console.WriteLine(userInfo);
completionHandler();
}