private static List<LinkData> linkDataList = new ArrayList<LinkData>();
private LinkAdapter la;
la = new LinkAdapter(someLinkDataitmes, getActivity());
ListView lv = (ListView) v.findViewById(R.id.urls);
lv.setAdapter(la);


public class LinkData {
    private String name, image, description;

    public LinkData(String name, String image, String description){
        this.name = name;
        this.image=image;
        this.description=description;
        }
}

ListView lv = (ListView) v.findViewById(R.id.urls);
LinkAdapter mListAdapter = ((LinkAdapter)lv.getAdapter()); // this line is giving an error.
mListAdapter.add(new LinkData(name_val, image_val, description_val));
mListAdapter.notifyDataSetChanged();