Swipe one item at a time Recyclerview [duplicate]

This softens the movement between items:

public class SnapHelperOneByOne extends LinearSnapHelper {

    @Override
    public int findTargetSnapPosition(RecyclerView.LayoutManager layoutManager, int velocityX, int velocityY) {

        if (!(layoutManager instanceof RecyclerView.SmoothScroller.ScrollVectorProvider)) {
            return RecyclerView.NO_POSITION;
        }

        final View currentView = findSnapView(layoutManager);

        if (currentView == null) {
            return RecyclerView.NO_POSITION;
        }

        LinearLayoutManager myLayoutManager = (LinearLayoutManager) layoutManager;

        int position1 = myLayoutManager.findFirstVisibleItemPosition();
        int position2 = myLayoutManager.findLastVisibleItemPosition();

        int currentPosition = layoutManager.getPosition(currentView);

        if (velocityX > 400) {
            currentPosition = position2;
        } else if (velocityX < 400) {
            currentPosition = position1;
        }

        if (currentPosition == RecyclerView.NO_POSITION) {
            return RecyclerView.NO_POSITION;
        }

        return currentPosition;
    }
}

Example:

LinearSnapHelper linearSnapHelper = new SnapHelperOneByOne();
linearSnapHelper.attachToRecyclerView(recyclerView);