SnapHelper

(SESL variant) Class intended to support snapping for a RecyclerView.

SnapHelper tries to handle fling as well but for this to work properly, the RecyclerView.LayoutManager must implement the RecyclerView.SmoothScroller.ScrollVectorProvider interface or you should override onFling and handle fling manually.

Constructors

constructor()

Attaches the SnapHelper to the provided RecyclerView, by calling setOnFlingListener.

Override this method to snap to a particular point within the target view or the container view on any axis.

open fun calculateScrollDistance(velocityX: Int, velocityY: Int): Array<Int>

Calculated the estimated scroll distance in each direction given velocities on both axes.

Override this method to provide a particular target view for snapping.

abstract fun findTargetSnapPosition(layoutManager: RecyclerView.LayoutManager, velocityX: Int, velocityY: Int): Int

Override to provide a particular adapter target position for snapping.

open fun onFling(velocityX: Int, velocityY: Int): Boolean

Override this to handle a fling given the velocities in both x and y directions.