I can't get GCM notification from background, Although can receive it on foreground such as these:
{
aps = {
alert = {
body = fffff;
title = "\U067e\U06cc\U0627\U0645";
};
badge = 9;
sound = default;
};
"gcm.message_id" = "0:1448218309944532%075c2cd9075c2cd9";
}
Any help?
To get notifications in background, as per apple documentation
"Remote notifications" option needs to be enabled in Background modes under Capabilities in the target settings.
and normally when you receive any notification at that time application:didReceiveRemoteNotification: this method called.
and if you want to call this method in background, then you should sent a silent pushnotification. and for that you have to add content-available key with value 1 into the notification payload.
you JSON response contain that key like below example
{
aps = {
"content-available" : 1,
sound : ""
};
}
Related
I am using firebase cloud messaging to send push notifications to our iOS application. When the application is in the foreground everything works fine.
The problem is when i send the app to the background and then send a notification.
I expect the following delegate to be called, but it is not:
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any],fetchCompletionHandler completionHandler: #escaping (UIBackgroundFetchResult)-> Void) {
I have ticked the "remote notifications" background mode in my apps signing & capabilities tab.
The payload i send to firebase looks like this:
{"to":"--TOKEN--",
"priority":"high",
"content_available":true,
"mutable_content": true,
"notification":
{"body":"Test Notification",
"title":"New Notification",
"sound":"default",
"click_action":"notification"
}
}
This payload is sent to firebase via https://fcm.googleapis.com/fcm/send
When i click an notification it is then processed, and i can see the apns version i receive looks like this:
[AnyHashable("google.c.sender.id"): 8xxxxxxxx, AnyHashable("gcm.message_id"): 1xxxxxxxxxx, AnyHashable("google.c.a.e"): 1, AnyHashable("google.c.fid"): fxxxxxxxxx, AnyHashable("aps"): {
alert = {
body = "Test Notification";
title = "New Notification";
};
category = feedback;
"content-available" = 1;
"mutable-content" = 1;
sound = default;
}]
I am not sure why content-available and mutable-content appear in quotes? I know firebase convers its payload to apns format, is there something wrong here?
I want the delegate to be called so that i can execute some code to maintain various data items, so it is important that i can run some code when my app is in the background and a notification is received.
I am not sure what config i am missing as everything i read seems to say this is all i need to do?
Push =>
{{
aps = {
alert = {
"loc-args" = (
);
"loc-key" = "new_chat";
};
"content-available" = 1;
id = 3;
message = Aaa;
sound = default;
subject = "new_chat";
type = chat;
};
}}
When the application is killed and I receive a push notification it is shown with the text "new_chat". How can I change it to another text?
Assuming you are targeting iOS 10+, you can add a Notification Services extension app (UNNotificationServiceExtension) to your app bundle.
modifies the content of a remote notification before it is delivered to the user.
In the DidReceiveNotificationRequest override, extract your content from the UNNotificationRequest and modify it and return it via the contentHandler provided.
Required reading to understand how/when the extension is used:
Modifying Content in Newly Delivered Notifications
Also:
Xamarin Docs: iOS Extensions in Xamarin.iOS
Apple docs: UNNotificationServiceExtension
maybe someone can help me.
In my app I'm using push notifications to inform the users that a new message is written to the database. One user can accept the notification and work with the content or dismiss it. If the user accepts it, a silent push is sent to all other devices which received the notification earlier. Here is my code handling this silent notification:
public override void ReceivedRemoteNotification(UIApplication application, NSDictionary remoteNotification)
{
try
{
if (remoteNotification != null)
{
var alert = remoteNotification[FromObject("aps")];
if (alert != null)
{
string id = ((NSDictionary)alert)[FromObject("deleteId")].Description;
if (!String.IsNullOrEmpty(id))
{
List<string> idents = new List<string>();
UNUserNotificationCenter.Current.GetDeliveredNotifications(completionHandler: (UNNotification[] t) =>
{
foreach (UNNotification item in t)
{
UNNotificationRequest curRequest = item.Request;
var notificationId = ((NSDictionary)curRequest.Content.UserInfo[FromObject("aps")])[FromObject("notificationId")].Description;
if (id == notificationId)
{
idents.Add(curRequest.Identifier);
}
}
UNUserNotificationCenter.Current.RemoveDeliveredNotifications(idents.ToArray());
});
}
}
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
}
The problem is that the notification is still visible in the notification center until the app is brought to foreground. But then it gets deleted.
Is there a way to force the method to delete the notification instantly and not only when the app is (re)opened?
When you want to clear the Notifications send from this app. Set its application's badge to 0 to achieve this.
As you said you send a silent notifications to other users, Then DidReceiveRemoteNotification() will fire. In this event we can clear all notifications:
public override void DidReceiveRemoteNotification(UIApplication application, NSDictionary userInfo, Action<UIBackgroundFetchResult> completionHandler)
{
var aps = userInfo["aps"] as NSDictionary;
if (aps["content-available"].ToString() == "1")
{
//check if this is a silent notification.
UIApplication.SharedApplication.ApplicationIconBadgeNumber = 0;
}
completionHandler(UIBackgroundFetchResult.NewData);
}
Please notice that starting with iOS 8.0, your application needs to register for user notifications to be able to set the application icon badge number. So please add the code below in FinishedLaunching():
UIUserNotificationSettings settings = UIUserNotificationSettings.GetSettingsForTypes(UIUserNotificationType.Badge, null);
UIApplication.SharedApplication.RegisterUserNotificationSettings(settings);
Moreover silent notifications can only be received when your app is on background or foreground. If it's terminated, this will fail.
To remove a notification, you send a silent push notification to all devices with the notification ID as payload that should be removed.
On the clients you implement a UNNotificationServiceExtension which allows you to remove currently displayed notifications by their IDs: UNUserNotificationCenter.current().removeDeliveredNotifications.
This gives you the advantage that you have full control over this logic on the server side.
I can receive push notifications when my app is in foreground but it is not working in background.
When I send the json has this form:
{
"data":{"message":"test ios push notification"},
"time_to_live":604800,
"registration_ids":["key...."],
"collapse_key":"GCM Notifications",
"content_available":1,
"priority":"high"
}
In my application I get in foreground (nothing in background):
{
aps = {
"content-available" = 1;
};
"gcm.message_id" = " whatever ";
message = "test ios push notification";
}
I think that the problem is around content_available but I dont know why I send content_available and the return is content-available. Is this a normal conversion?
SOLVED!
Me bad, I forget to enable it in target -> Capabilities section:
{
aps = {
alert = "You have assigned 1 new task.";
badge = 1;
sound = "default"
};
}
The same JSON Payload is working in iOS 8+ but not in 7.1
Am I missing something here in payload?
I have checked for the notification settings and it's fine too.