Android notification icon is a white circle

Question

I've got a strange problem with notification icon today.

It looks like this : (the white circle ...)

Did I do something bad ?

Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
                .setSmallIcon(R.drawable.icon_notification)
                .setContentTitle(this.getString(R.string.notification_title))
                .setContentText(this.getString(R.string.notification_text))
                .setAutoCancel(true)
                .setSound(defaultSoundUri)
                .setContentIntent(pendingIntent);

Here is my icon image (freshly downloaded from here https://material.io/icons/#ic_photo) : http://image.noelshack.com/fichiers/2016/44/1478185219-icon-notification.png

Did I miss something ?

For the record, I'm using SDK 24 and only created the hdpi resource folder for now.

Edit #1 : I've added the ldpi, mdpi and xhdpi icons, nothing change ...

Edit #2 : For more precision, I'm trying to create this notification from a service ... FCM messaging service ...

Answer 1

If your compileSDKversion is above 20 then notification icon should be a white-on-transparent background image. Otherwise the image will be rendered as a white colored image.

Please go through the below link too for guidelines to create the icon

https://www.google.com/design/spec/patterns/notifications.html

and also the notification icon generator.

https://romannurik.github.io/AndroidAssetStudio/icons-notification.html#source.space.trim=1&source.space.pad=0&name=ic_stat_example

Answer 2

I had the same problem while the app is closed and this helped me

Unfortunately this was a limitation of Firebase Notifications in SDK 9.0.0-9.6.1. When the app is in the background the launcher icon is use from the manifest (with the requisite Android tinting) for messages sent from the console.

With SDK 9.8.0 however, you can override the default! In your AndroidManifest.xml you can set the following fields to customize the icon and color:

<meta-data
    android:name="com.google.firebase.messaging.default_notification_icon"
    android:resource="@drawable/notification_icon" />
<meta-data android:name="com.google.firebase.messaging.default_notification_color"
    android:resource="@color/google_blue" />