I have to admit, I'm not wild about this solution because I'd really like to keep fragment logic out of WPMainActivity when possible. Of course, sometimes it just isn't possible, but I think it can be done in this situation.

This might be a good case for using a sticky event. Unlike other EventBus events, a sticky event can be received long after it has been posted. So you could post a NoteVisibilityChanged event and have it handled by NotificationListFragment regardless of whether it's currently showing. Just keep in mind that the sticky event will persist until you remove it, so you'll want to call EventBus.getDefault().removeStickyEvent(NoteVisibilityChanged.class) once you've handled it.

Yeah I didn't like that either. A Sticky Event sounds perfect, thanks for the tip!

@nbradbury the sticky event appears to have worked well! Added in e1605d0

Looks good!