Как сделать пагинацию Jsoup Android?

Если я вас правильно понял, то код должен выглядеть как то так:

public class MainActivity extends Activity {

    public Elements title;
    public Elements content;
    public ArrayList<String> titleList = new ArrayList<>();

    private ArrayAdapter<String> adapter;
    private ListView lv;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        lv = (ListView)findViewById(R.id.listView1);
        lv.setOnScrollListener(new InfiniteScrollListener(10) {
            @Override
            public void loadMore(int page, int totalItemsCount) {
                new NewThread(page).execute();
            }
        });
        //new NewThread().execute();
        adapter = new ArrayAdapter<String>(this,R.layout.list_item, R.id.pro_item, titleList);
        lv.setAdapter(adapter);
    }

    public class NewThread extends AsyncTask<String, Void, String>{
        int page = 0;
        NewThread(int page){
            this.page=page;
        }
        @Override
        protected String doInBackground(String...arg){
            Document doc;
            try{
                titleList.clear();
                for(int i = 1; i<=page;i++) {
                    doc = Jsoup.connect(URL+"/?paged="+page).get();
                    title = doc.select(".genpost-entry-title ");
                    content = doc.select(".genpost-entry-content");
                    //titleList.clear();
                    for (int j = 0; j<title.size(); j++) {
                        titleList.add(title.get(j).text() + "\n\n" + content.get(j).text());
                    }


                }
            }catch (IOException e){
                e.printStackTrace();
            }
            return  null;
        }

        @Override
        protected void onPostExecute(String result) /*List почему то не работает, говорит, что не переопределяет метод суперкласса*/
{adapter.clear();adapter.addAll(result);adapter.notifyDataSetChanged();}

        }

    public abstract class InfiniteScrollListener implements AbsListView.OnScrollListener {
        private int bufferItemCount = 10;
        private int currentPage = 0;
        private int itemCount = 0;
        private boolean isLoading = true;

        public InfiniteScrollListener(int bufferItemCount) {
            this.bufferItemCount = bufferItemCount;
        }

        public abstract void loadMore(int page, int totalItemsCount);

        @Override
        public void onScrollStateChanged(AbsListView view, int scrollState) {

        }

        @Override
        public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount)
        {
            if (totalItemCount < itemCount) {
                this.itemCount = totalItemCount;
                if (totalItemCount == 0) {
                    this.isLoading = true; }
            }

            if (isLoading && (totalItemCount > itemCount)) {
                isLoading = false;
                itemCount = totalItemCount;
                currentPage++;
            }

            if (!isLoading && (totalItemCount - visibleItemCount)<=(firstVisibleItem + bufferItemCount)) {
                loadMore(currentPage + 1, totalItemCount);
                isLoading = true;
            }
        }
    }
}

И оно не работает