Firebase Push Notification how to set icon? Using Admin SDK in .NET

Question

Basically I want to set the icon on the push notification using Firebase. I am using their Firebase Admin .NET SDK. Which actually works just fine except for one minor detail, I cannot set the icon. Utilizing the class FirebaseAdmin.Messaging.Message then specifying the attribute Token then specifying the Notification object (which has three attributes):

1. Body
2. ImageUrl
3. Title

After setting those the push notification works fine, but the ImageUrl is an actual image withing the message not the icon. I want to set the icon. After look through the docs I noticed that Message has an attribute called Webpush of type WebpushConfig which that has an attribute Notification of type WebpushNotification and boom! there they are, a bunch of settings like Tile, Body, Vibrate and others, but the one I really want is in there Icon . Unfortunately setting the attributes for WebpushNotification do not seem to do anything. Here is my code.

    public async Task Push(string token)
    {
        await messaging.SendAsync(new Message() { 
            Token = token,
            Notification = new Notification() {
              //Title = "This Title works",
              //Body = "This body works",
              //ImageUrl = "someUrlThatWorks"
            },
            Webpush = new WebpushConfig()
            {
                Notification = new WebpushNotification
                {
                    Title = "This title does not work",
                    Body = "This body does not work",
                    Icon = "thisIconDoesNotWork.png"
                }
            }
        });
    }

Basically only the three attributes from FirebaseAdmin.Messaging.Notification work.

But the attributes from FirebaseAdmin.Messaging.WebpushNotification I cannot get to work, I just want the Icon from there.

Here are the Docs

Thank you.

Answer 1

add the following to AndroidManifest.xml file

<!-- Set custom default icon. This is used when no icon is set for incoming notification messages. -->
<meta-data
    android:name="com.google.firebase.messaging.default_notification_icon"
    android:resource="@drawable/ic_stat_ic_notification" />
<!-- Set color used with incoming notification messages. This is used when no color is set for the incoming
     notification message. -->
<meta-data
    android:name="com.google.firebase.messaging.default_notification_color"
    android:resource="@color/colorAccent" />