public override void OnSwiped(RecyclerView.ViewHolder viewHolder, int direction)
{
position = viewHolder.AdapterPosition;
mAdapter.deleteItem(position);
RecyclerView vista = ((MainActivity)mContext).Window.DecorView.FindViewById <RecyclerView>(Resource.Id.recycler_view_main);
vista.ScrollToPosition(position);
vista.SetAdapter(mAdapter);
}