CheckBox in ListView being reset when it leaves the screen

Question

I have followed the tutorial here to create a custom ListView that shows items with category headers. I have modified the list_item_entry.xml to put a

Answer 1

class Item{
 boolean isSection;
 String title;
 boolean isOptionChecbox;

 //your getter/setter

    @Override
    public String toString() {
        return title;
    }
}

you Adapter:
public class listAdapter extends ArrayAdapter<Item> {

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    final Item i = items.get(position);
    if(i.isSection()){
              convertView = vi.inflate(R.layout.list_item_section, parent, false);
              convertView.setOnClickListener(null);
              convertView.setOnLongClickListener(null);
              convertView.setLongClickable(false);
              final TextView sectionView = (TextView) convertView.findViewById(R.id.list_item_section_text);
              sectionView.setText(si.getTitle());
       } else{
              convertView = vi.inflate(R.layout. list_item_entry, parent, false);
              final TextView title = (TextView) convertView.findViewById(R.id.list_item_entry_title);
              if (title != null) title.setText(ei.getTitle());

              CheckBox optionCheckbox = (CheckBox) convertView.findViewById(R.id.option_checkbox);
              optionCheckbox.setChecked(ei.isOptionCheckbox());
              optionCheckbox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
                  @Override
                  public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
                      item.setOptionCheckbox(b);
                  }
            });
       }      
    return convertView;
 }

}

Answer 2

you need to maintain a status array of type boolean in your activity, pass that array into your list adapter and while setting the checkbox check status of that position, also you need to update that status array likewise on click event of checkbox. try this you will get the desired output.

//While Setting the checkbox in adapter

     if(bStatus[position]==false)
        {
             itemSet.chSelectItem.setChecked(false);
        }else if(bStatus[position]==true)
            {
              itemSet.chSelectItem.setChecked(true);
            }   

In your main Activity

      //initilize Arraylist in main Activity
        boolean[] bStatus;
        bStatus = new boolean[BeanArray.size()];
        Arrays.fill(bStatus, false);
    MyAdapter adapter = new MyAdapter(this, BeanArray, bStatus);
listView.setAdapter(adapter);