How can i disable Expandable Listview icon from it's header in android?

Question

I created an ExpandableListView in android. I have some categories which have some more sub-categories. While other do not have sub-categories. How can I remove the

Answer 1

First of all , remove the default icon of expandable listview

And than in your adapter of Expandable listview in getGroupView method use following code for it

@Override
public View getGroupView(int groupPosition, boolean isExpanded,
                         View convertView, ViewGroup parent) {
    String headerTitle = (String) getGroup(groupPosition);
    if (convertView == null) {
        LayoutInflater infalInflater = (LayoutInflater) this._context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = infalInflater.inflate(R.layout.YOUR_LIST_GROUP_XML, null);
    }

    TextView header_tv = (TextView) convertView.findViewById(R.id.list_header_tv);
    ImageView arrow_iv =(ImageView) convertView.findViewById(R.id.arrow_iv);


    header_tv.setText(headerTitle);

    Boolean check = false;

    try {


        YOUR_HAS_MAP_LIST.get(this._listDataHeader.get(groupPosition))
                .get(0);
    }
    catch (Exception ex)
    {
        check = true;
        ex.printStackTrace();
    }
    if(check)
    {
        arrow_iv.setVisibility(View.INVISIBLE);
    }

    if(isExpanded)
    {
        arrow_iv.setImageResource(R.drawable.UP_ARROW);
    }
    else
    {
        arrow_iv.setImageResource(R.drawable.DOWN_ARROW);
    }

    return convertView;
}