Add new items to top of an android ListView

gistfile1.java

    //Method onRefresh() from SwipeRefreshLayout.OnRefreshListener
    @Override
    public void onRefresh() {

        // I'm using Retrofit, so this is the way I get new data from the server
        new RestAdapter().get().getItems(new Callback<List<Foo>>() {
            @Override
            public void success(List<Foo> foos, Response response) {

                // IMPORTANT: This is important to add new items at the top of the listview
                adapter.addMoreItems(0, foos);
                
                int index = listView.getFirstVisiblePosition() + foos.size();
                int top = (listView.getChildAt(0) == null) ? 0 : listView.getChildAt(0).getTop();
                adapter.notifyDataSetChanged();
                listView.setSelectionFromTop(index, top);

                swipeRefreshLayout.setRefreshing(false);

            }

            @Override
            public void failure(RetrofitError error) { }
        });

    }