Pass parameters from one Adapter class to another Activity

Question

I need the help of Voce, create a class called Itensadapter that creates a listview with the database data, until ai blz, now I need to capture this data in another Activity to enter the quantities of these items I will post the code.

public class ItensAdapter extends BaseAdapter {

    private Context ctx;
    private List<buscaItens> lista;

    String qtdItens;

    public ItensAdapter(Context ctx2, List<buscaItens> list2){

        ctx = ctx2;
        lista = list2;

    }

    @Override
    public int getCount() {
        return lista.size();
    }

    @Override
    public buscaItens getItem(int i) {
        return lista.get(i);
    }


    @Override
    public long getItemId(int i) {
        return 0;
    }

    @Override
    public View getView(int i, View view, ViewGroup viewGroup) {

        View v = null;

        if(view == null){
            LayoutInflater inflater = ((Activity)ctx).getLayoutInflater();
            v = inflater.inflate(R.layout.espelho, null);
        }else{

            v = view;
        }  buscaItens p = getItem(i);



        TextView item = (TextView) v.findViewById(R.id.item);
        Spinner quantidade = (Spinner) v.findViewById(R.id.quantidade);
        TextView codigo = (TextView) v.findViewById(R.id.codigo);

        ArrayAdapter qtd = ArrayAdapter.createFromResource(ctx,R.array.conectores, android.R.layout.simple_spinner_dropdown_item);
        item.setText(p.getItem()+":");
        quantidade.setAdapter(qtd);
        codigo.setText(p.getCodigo());


        return v;



    }
}

How do I upload each item from ListView to another Activity?

EXEMPLO DO LISTVIEW:
item1-------Codigo1------Spinner com quantidades.
item2-------Codigo2------Spinner com quantidades.

I want to pick up these 3 items on another Activity.