Android Color Notification Icon

I found the answer to my question here: https://stackoverflow.com/a/44950197/4394594

I don't know entirely what the problem was, but by putting the huge png that I was using for the icon into the this tool https://romannurik.github.io/AndroidAssetStudio/icons-notification.html#source.type=image&source.space.trim=1&source.space.pad=0&name=ic_skylight_notificationand by placing the generated icons it gave into my mipmap folder, I was able to get the setColor(...) property to work correctly.

For firebase nofitications sent from console you just need to add this in your manifest:

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

Where white_logo is your app white logo, and custom_color is the color you want to have the icon and text colored.

More details here: https://firebase.google.com/docs/cloud-messaging/android/client

Here is what I did for my app ...

private void showNotification(Context context) {    Log.d(MainActivity.APP_TAG, "Displaying Notification");    Intent activityIntent = new Intent(context, MainActivity.class);    PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, activityIntent, PendingIntent.FLAG_UPDATE_CURRENT);    NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context);    mBuilder.setSmallIcon(R.drawable.ic_notification);    mBuilder.setColor(Color.GREEN);    mBuilder.setContentIntent(pendingIntent);    mBuilder.setContentTitle("EarthQuakeAlert");    mBuilder.setContentText("It's been a while you have checked out earthquake data!");    mBuilder.setDefaults(Notification.DEFAULT_SOUND);    mBuilder.setAutoCancel(true);    NotificationManager mNotificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);    mNotificationManager.notify(1, mBuilder.build());}

Sample With Color:

Sample without Color: