[Question] Detect which header is being sticky

[DawnNguyenAhiho]

Hi. I'm using epoxy to create my app. My app has 2 section, so that I create 2 sticky header using StickyHeaderLinearLayoutManager. But the problem is my header has a search button. I only want the search button visible on the sticky header (which mean the top header of the RecycleView) and not the header at the middle. Assume that I have header 1 => some element => header 2 => some more element. At first, the header 1 is on the top and "sticky". When I scroll up, the header 2 goes up and then push the header 1 out of the screen. Now the header 2 is "sticky". I want to detect when the header 2 is pushing the header 1 out, and then I can update the visibility for the search button (at header 1 the search button gone, at header 2, the search button visible).