通知图标显示在状态栏中，但不显示在通知本身中

Question

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As you can see, the mipmap icon is showing in the status bar but not in the notification itself. This is how I've set it:

Notification notification = new NotificationCompat.Builder(this).
                setSmallIcon(R.mipmap.ic_launcher). // This is the small icon
                // more code
                build();

Current test device is using Android 7.1.1 Can anyone help or explain why this is happening, or give some advice on how to fix it? Thanks

Answer 1

This is because Android requires a white icon in the notification bar. So change it to a white icon.

https://developer.android.com/guide/topics/ui/notifiers/notifications.html

What Android basically does, is painting your wall grey. Actually your wall is showing, but with a grey overlay.

According to your question below, you can load your drawable and paint it to white like this:

yourWallIcon.setColorFilter(Color.WHITE)

Note that yourWallIcon must be a drawable.