protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);
            SetContentView(Resource.Layout.dean_view_group);
            grouplistView            = FindViewById <ListView>(Resource.Id.dean_group_viewList);
            grouplist                = new List <Group>();
            grouplist                = DataBaseHelper.GetListOfGroup();
            groupAdapter             = new GroupAdapter(this, grouplist);
            grouplistView.Adapter    = groupAdapter;
            grouplistView.ItemClick += GrouplistView_ItemClick;
            FloatingActionButton fab = FindViewById <FloatingActionButton>(Resource.Id.fab_add_group);

            fab.Hide();
        }