如何在android中的gridView中保存单击的TextView

Question

我的日历包含GridView，其中包含TextView个项目。当日历布局打开时，用户可以单击项目。

它显示一个图标，单击时不显示图标。我想保存点击的TextView图标，以便当用户关闭并再次打开日历布局时，它会显示点击的TextView图标。

我搜索了所有相关问题，但无法解决我的问题。哪种方式是保存图标的最佳方式？我也尝试过使用SharedPreferences

CalendarView（clickListener）

grid.setOnItemClickListener(new AdapterView.OnItemClickListener() {
             @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

                Date date = (Date)parent.getItemAtPosition(position);
                Date currentDate = new Date();

                textView = (TextView)view.findViewById(R.id.text_view);

                if(date.after(currentDate)) {

                    Toast.makeText(getContext(), "Day in the future", Toast.LENGTH_SHORT).show();

                }

                if(date.compareTo(currentDate) == -1  ) {


                    if(textView.getBackground() == null) {

                    editor.putBoolean("selected", true);
                    editor.apply();

                    textView.setBackgroundResource(R.drawable.draw_cross);

                    } else {

                        editor.putBoolean("selected", false);
                        editor.apply();
                        textView.setBackground(null);

                    }

                 }
            }
        });

    }

CalendarAdapter

public class CalendarAdapter extends ArrayAdapter<Date> {

    // days with events
    private HashSet<Date> eventDays;

    // for view inflation
    private LayoutInflater inflater;

    @NonNull
    @Override
    public Context getContext() {
        return super.getContext();
    }

    public CalendarAdapter(Context context, ArrayList<Date> days, HashSet<Date> eventDays)
    {
        super(context, R.layout.control_calendar_day, days);
        this.eventDays = eventDays;
        inflater = LayoutInflater.from(context);
    }

    @Nullable
    @Override
    public Date getItem(int position) {
        return getItem(position);
    }

    @Override
    public long getItemId(int position) {
        return getItemId(position);
    }

    @Override
    public View getView(int position, View view, ViewGroup parent) {

        // day in question
        Date date = getItem(position);
        int day = date.getDate();
        int month = date.getMonth();
        int year = date.getYear();

        // today
        Date today = new Date();

        // inflate item if it does not exist yet
        if (view == null)
            view = inflater.inflate(R.layout.control_calendar_day, parent, false);

        int screenHeight = ((Activity) getContext()).getWindowManager()
                .getDefaultDisplay().getHeight();

        view.setLayoutParams(new GridView.LayoutParams(GridView.LayoutParams.MATCH_PARENT, screenHeight/7));
        TextView text = (TextView)view.findViewById(R.id.text_view);

        text.setTextColor(Color.BLACK);
        text.setTextSize(25);

        if (month != today.getMonth() || year != today.getYear()) {
            // if this day is outside current month, grey it out
            text.setTextColor(getContext().getResources().getColor(R.color.greyed_out));
        }
        else if (day == today.getDate()) {
            // if it is today, set it to blue/bold
            text.setTypeface(null, Typeface.NORMAL);
            text.setTextColor(getContext().getResources().getColor(R.color.today));
            text.setTextSize(45);
        }

        // set text
        text.setText(String.valueOf(date.getDate()));

        return view;
    }



}