Android Question [Solved] Notification (Firebase Cloud Messaging) - No Icon

[Quillok]

Hey,

I'm playing with the FCM (can't believe how easy it is to use, thanks for that!).
My problem is, I always get a white square instead of an icon in the notification.
I'm using the given standard code from the example:

Sub fm_MessageArrived (Message As RemoteMessage)
    Log("Message arrived")
    Log($"Message data: ${Message.GetData}"$)
    Dim n As Notification
    n.Initialize
    n.Icon = "icon"
    n.SetInfo(Message.GetData.Get("title"), Message.GetData.Get("body"), Main)
    n.Notify(1)
End Sub

So it should use the icon in the objects/res/drawable folder. I've checked the spelling and everything is the same.
I tried different sizes of the icon, 24, 48, 96 up to 512 pixels, but everytime I see only a white square.

Has anybody an idea what i'm doing wrong?

 

[Erel]

It is not related to the icon size. Starting from Android 6 or 7 the icons are used as a marks and the colors are ignored. Keep the icon shape and make the other parts transparent.

 

[Quillok]

Perfect, thank you, now it works and looks fine