class LinearLayoutManager extends RecyclerView.LayoutManager implements
        ItemTouchHelper.ViewDropHandler, RecyclerView.SmoothScroller.ScrollVectorProvider {

    public void scrollToPositionWithOffset(int position, int offset) {
        mPendingScrollPosition = position;
        mPendingScrollPositionOffset = offset;
        if (mPendingSavedState != null) {
            mPendingSavedState.invalidateAnchor();
        }
        requestLayout();
    }

    public  LinearLayoutManager(Context context);
    public  LinearLayoutManager(Context context, @RecyclerView.Orientation int orientation,
            boolean reverseLayout);
    public  LinearLayoutManager(Context context, AttributeSet attrs, int defStyleAttr,
            int defStyleRes);

}