How to add image in expandable List in parent in android?

Question

And is it possible to customize the child in expandable list?

Answer 1

You can try making your own list adapter that extends BaseExpandableListAdapter just like described in documentation.

Then override getGroupView(..) (for parent item, or getChildView for child item) function and in this function you can inflate your own layout xml.

something like this:

public View getGroupView(int groupPosition, boolean isExpanded, View convertView,
            ViewGroup parent) 
        {
            View v = convertView;
            if (v == null) {
    //sender is activity from where you call this adapter. Set it with construktor.
                LayoutInflater vi = (LayoutInflater)sender.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
                v = vi.inflate(R.layout.row, null);
            }
//children = arraylists of Child 
            Child c = children.get(childPosition);
            if (c != null) {
                    TextView tt = (TextView) v.findViewById(R.id.toptext);
                    TextView bt = (TextView) v.findViewById(R.id.bottomtext);
                    ImageView icon = (ImageView) v.findViewById(R.id.rowicon);
                    if (tt != null) {
                          tt.setText(c.text1);                            }
                    if(bt != null){
                          bt.setText(c.text2);
                    }
                    if (icon != null) 
                    {
                        icon.setImageResource(R.drawable.rowicon);
                    }
            }
            return v;
        }

layout xml :