I am looking for examples of the effect used mostly in mobile design, where by scrolling down the navbar hides from view, and by scrolling up again it returns in view.
Does this effect have a specific name?
This types of NavBars are known as Pit bars according to this answer.
I found 2 good examples:
But as far as know, this navbar doesn't have any specific name. I would call it the "Interactive navbar" because it describes the main mechanics — interactivity.