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Maybe this can help devs:
- How to hide/show Toolbar when list is scrolling (part 3) · Michał Z.
- https://stackoverflow.com/questions/26459909/hide-the-title-bar-while-scrolling-and-show-the-title-bar-after-scrolling
- https://stackoverflow.com/questions/25500353/android-actionbar-hide-show-when-scrolling-list-view
- https://developer.android.com/training/appbar
only one block is needed register title scroll view and we can insert vertical arrangement/horizontal arrangement inside it.
edit: I realized one more block is needed that is for registering main arrangement means it will be vsa or va the first one is for title bar and this one if for main content area.