Custom icon for each NSUserNotification?

Question

Is there any way to provide custom icons for each NSUserNotification, instead of the default app logo? Like the iconData parameter in Growl.

I want to show "Someone has just posted something" with the photo of this "someone".

Answer 1

You still cannot change the (default) image showing your app's icon, but starting in OS X Mavericks you can in addition display an additional image using the new property contentImage, e.g. like this:

This new property isn't documented in the NSUserNotification class reference, but mentioned in the Foundation Release Notes for OS X 10.9.

Answer 2

Currently not (Mountain Lion). You should post a feature request.

Answer 3

I know this question has been dead for 5 years, but in case someone finds that question and is still looking for a solution, there is that one:

https://github.com/indragiek/NSUserNotificationPrivate

I've tested it in macOS Sierra and it still works. Just be warned, quoting the project creator:

This should go without saying, but using any of this will result in your app being rejected from the MAS (Mac Apple Store) and potentially breaking if the APIs change.