recyclerview/androidx.recyclerview.widget/RecyclerView/computeVerticalScrollExtent

computeVerticalScrollExtent

open fun computeVerticalScrollExtent(): Int(source)

Compute the vertical extent of the vertical scrollbar's thumb within the vertical range. This value is used to compute the length of the thumb within the scrollbar's track.

The range is expressed in arbitrary units that must be the same as the units used by computeVerticalScrollRange and computeVerticalScrollOffset.

Default implementation returns 0.

If you want to support scroll bars, override computeVerticalScrollExtent in your LayoutManager.

Return

The vertical extent of the scrollbar's thumb

See also