read xml data using Sticky Header List view

i have pinned setion header list view to implement into my app but the sample data from library i use just read from looping. and my trouble is my data in the xml form i just confused how to call my data inside section pinned header list view and i get library from this http://ift.tt/1hPSv6Y

here code from that library

        public void generateDataset(char from, char to, boolean clear) {
       if (clear) clear();
        final int sectionsNumber = to - from + 1;
        prepareSections(sectionsNumber);
        //header section
        int sectionPosition = 0, listPosition = 0;
        for (char i=0; i<sectionsNumber; i++) {
            Item section = new Item(Item.SECTION, String.valueOf((char)('A' + i)));
            section.sectionPosition = sectionPosition;
            section.listPosition = listPosition++;
            onSectionAdded(section, sectionPosition);
            add(section);

            final int itemsNumber = (int) Math.abs((Math.cos(2f*Math.PI/3f * sectionsNumber / (i+1f)) * 25f));
            for (int j=0;j<itemsNumber;j++) {
                Item item = new Item(Item.ITEM, section.text.toUpperCase(Locale.ENGLISH) + " /// " + j);
                item.sectionPosition = sectionPosition;
                item.listPosition = listPosition++;
                add(item);
            }

            sectionPosition++;
        }
    }

and here my code to call my data

    private ListView listAnimal;
ArrayAdapter<String> adapter;
EditText search;

final Context context = this; private Button button;

Resources res = getResources(); String[] hewan = res.getStringArray(R.array.hewan_array);

    listAnimal = (ListView) findViewById(R.id.list_view);
    search = (EditText) findViewById(R.id.search);


    adapter = new ArrayAdapter<String>(this, R.layout.animallist, R.id.product_name, hewan);
    listAnimal.setAdapter(adapter);
    button = (Button)findViewById(R.id.button_show_alert_dialog);