Adaptador para android explicado

gistfile1.java

/**
 * Created with IntelliJ IDEA.
 * User: arturojamaicagarcia
 * Date: 14/07/12
 * Time: 04:17
 * To change this template use File | Settings | File Templates.
 */
 
// Declaramos el Adaptador usamos templates
public class BaseAdapter extends ArrayAdapter<Object> {
   

    Context context;
    int layoutResourceId;
    ParseObject data[] = null;
    
    //Forzamos a crear un adaptador con el tipo que definimos
    public BaseAdapter(Context context, int layoutResourceId, Object[] data) {
        //Set de todo localmente
        super(context, layoutResourceId, data);
        this.layoutResourceId = layoutResourceId;
        this.context = context;
        this.data = data;
    }

    //metodo importante para pintar cada Celda
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        //Creamos la celda
        View row = convertView;
        PartidoHolder holder = null;

        if(row == null)
        {
            // Le asginamos diseño
            LayoutInflater inflater = ((Activity)context).getLayoutInflater();
            row = inflater.inflate(layoutResourceId, parent, false);

            // Usamos un objeto Holder que solo Almacena las relaciones de interfaz
            holder = new Holder();
            holder.txtTitle = (TextView)row.findViewById(R.id.txtTitle);
            holder.txtTitle2 = (TextView)row.findViewById(R.id.txtTitle2);
        }
        else
        {
            holder = (Holder)row.getTag();
        }

        // Sacamos el objeto del arreglo data y asignamos los valores a cada dato
        Object single = data[position];
        holder.txtTitle.setText(single.atributo1));
        holder.txtTitle2.setText(single.atributo1);

        // Regresamos el row ya pintadito
        return row;
    }

    static class Holder
    {
        TextView txtTitle;
        TextView txtTitle2;

    }
}

// Asi seteamos el Adaptador
BaseAdapter adapter = new BaseAdapter(this, R.layout.row, data);
listView.setAdapter(adapter);