What I think would be a cool interaction is as a user scrolls down the header hides.
To see an example of what I mean look at the Facebook app.
As the user scrolls down, the header kind of slides up. Then when the user scrolls back up it slides back down and becomes visible.
ya I really don’t know how to achieve this. The main issue, is that I don’t know how to watch the scrolling action. If I know how to do that, then the rest would be pretty easy. But as of now, there is no way to determine if the user is scrolling at all (at least none that I know off)