I don't like the idea of having the notifications be parented under the current app's toolbar (also what if it doesn't have a toolbar), but I do like the little bubble appearing and needing a slide to action, that looks cute.
Thanks! Yeah, the bubble is the new concept, but of course the only thing that we can do now as UI/UX designers is make sure we have actionable buttons at the bottom of the screens wherever possible and needed :)