scrollVerticallyBy
open fun scrollVerticallyBy(dy: Int, recycler: RecyclerView.Recycler, state: RecyclerView.State): Int(source)
Scroll vertically by dy pixels in screen coordinates and return the distance traveled. The default implementation does nothing and returns 0.
Return
The actual distance scrolled. The return value will be negative if dy was negative and scrolling proceeeded in that direction. Math.abs(result) may be less than dy if a boundary was reached.
Parameters
dy
distance to scroll in pixels. Y increases as scroll position approaches the bottom.
recycler
Recycler to use for fetching potentially cached views for a position
state
Transient state of RecyclerView