In the calendar, how to change the background color of the selected item in the android grid view

Question

In the calendar, how to change the background color of the selected item in the android grid view

enter image description here

In the calendar, When I select a date, I need to change the background color of the grid element, as well as remove the background of the previous selected element. When I press and hold the date 10, (shown in Figure 2), an orange color is displayed. But when I focused the mouse, Color did not show it.

gridcell.setOnClickListener (new OnClickListener () {

                        @Override
                        public void onClick(View v) {


                            String date_month_year = (String) v.getTag();
                            selected_date = date_month_year;
                            String[] day_color = date_month_year.split("-");
                            String theday = day_color[0];
                            selectedDateEvents(theday);
                            listadapter.notifyDataSetChanged();
                            prev_pos = cur_pos;
                            cur_pos = position;

                            Log.d("curr and prev", position+"  n  "+prev_pos);

                            parent.getChildAt(cur_pos).setBackgroundResource(R.drawable.calendar_tile_small);
                            parent.getChildAt(prev_pos).setBackgroundResource(R.drawable.calendar_tile_small_black);

                            GridCellAdapter.this.notifyDataSetChanged();

                        }
                    });