How to save and restore the state of checkboxes in Android RecyclerView?

I have written the following "setter" in setOnCheckedChangeListener to set a key, value pair to sharedpreferences. However, where (in the code) should I get back the values and how should I set the checkboxes in the Recyclerview? I am very confused, so clarity would be appreciated. Thanks. "numbers" is an arraylist that holds two textviews that I set using the bindData function that you see in the code. So, numbers.get(position) sets the right values from the array to my correct cardview. However, I am unable to understand how to set the checkbox based on the key, value pair I set below.

 public void onBindViewHolder(final ViewHolder holder, int position) {
        holder.bindData(numbers.get(position));
        //in some cases, it will prevent unwanted situations
       holder.checkbox.setOnCheckedChangeListener(null);

        //if true, your checkbox will be selected, else unselected
        holder.checkbox.setChecked(numbers.get(position).isSelected());

        holder.checkbox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                numbers.get(holder.getAdapterPosition()).setSelected(isChecked);
                //Log.e(Integer.toString(holder.getAdapterPosition()), " IS CHECKED");
                if (isChecked) {
                    setDefaults(Integer.toString(holder.getAdapterPosition()), "1", context);
                    Boolean man = numbers.get(holder.getAdapterPosition()).isSelected();
                    Log.e("Setting " + Integer.toString(holder.getAdapterPosition()), man.toString());
                }
            }
        });

    }

    public static void setDefaults(String key, String value, Context context) {
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
        SharedPreferences.Editor editor = prefs.edit();
        editor.putString(key, value);
        editor.clear();
        editor.commit();
    }

    public static String getDefaults(String key, Context context) {
        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
        return preferences.getString(key, null);
    }

Please let me know if you have further questions. Regards