private void Listview_ItemClick(object sender, AdapterView.ItemClickEventArgs e)
        {
            var item = adapter.GetItem(e.Position);

            Toast.MakeText(this, $"Element selectionnée {item}", ToastLength.Short).Show();
        }
        //@Override
        //public Object getItem(int position) {
        //    return mDecoratedBaseAdapter.getItem(position);
        //}

        public override Java.Lang.Object GetItem(int position)
        {
            return(mDecoratedBaseAdapter.GetItem(position));
        }