Получать Арраи Лист из-за AsyncTask одной унифицированный указатель ресурса

Я пробую извлекать список array из-за asynctask одной url но мне не удается завершить действие.

Это ошибка:

Ошибка: (35, 22) ошибка: несовместимый types required: ArrayList found: ArrayList

Ошибка: (34, 25) ошибка: несовместимый types required: Activity found: Context

Выполни:

  new List_URL().execute();



    ListView lvDiversos = (ListView) findViewById(R.id.lista_notificaciones);


    public class List_URL extends AsyncTask<ArrayList, ProgressBar, ArrayList<HttpHandler2>> {


        ArrayList<HttpHandler2> diversosAvaiable = new ArrayList<HttpHandler2>();

        protected void onPreExecute(){
            super.onPreExecute();
            // progressDialog
        }

        @Override
        protected ArrayList doInBackground(ArrayList... arg0){
            try {
            // Making HTTP Request
            try {

                final String id_pedido = getIntent().getStringExtra("id_pedido");

                // Crear un cliente por defecto
                HttpClient mClient = new DefaultHttpClient();
                StringBuilder sb=new StringBuilder("http://www.miweb.com/web_service/chat_api.php?id_pedido="+id_pedido);
                HttpPost mpost = new HttpPost(sb.toString());
                List nameValuepairs = new ArrayList();
                nameValuepairs.add(new BasicNameValuePair("id_pedido","51"));
                mpost.setEntity(new UrlEncodedFormEntity(nameValuepairs));
                HttpResponse responce = mClient.execute(mpost);
                HttpEntity entity = responce.getEntity();
                StringBuilder sb1 = new StringBuilder();



                String aux = "";
                BufferedHttpEntity buffer = new BufferedHttpEntity(entity);
                InputStream iStream = buffer.getContent();
                BufferedReader buf = new BufferedReader(new InputStreamReader(iStream));
                StringBuilder total = new StringBuilder();
                String line;
                while ((line = buf.readLine()) != null) {
                    aux += line;
                }
                // Parseamos la respuesta obtenida del servidor a un objeto JSON
                JSONObject jsonObject = new JSONObject(aux);
                JSONArray results = jsonObject.getJSONArray("results");


                Log.w(" RESULTADOS JSON ", String.valueOf(results));

                while ((line = buf.readLine()) != null) {
                    sb1.append(line+"\r\n");
                }

                for(int i = 0; i < results.length(); i++) {
                    JSONObject city = results.getJSONObject(i);

                    // Creamos el objeto City
                    HttpHandler2 c = new HttpHandler2(
                            city.getInt("id"),
                            city.getString("id_pedido"),
                            city.getString("user"),
                            city.getString("gcmpartner"),
                            city.getString("id_partner"),
                            city.getString("msg"),
                            city.getString("date"));
                    //c.setData(city.getString("imagen_comp"));
                    //c.setData2(city.getString("imagen_g"));

                    // Almacenamos el objeto en el array que hemos creado anteriormente
                    diversosAvaiable.add(c);



                }

            } catch (Exception e) {
                //Si se produce un error, lo mostramos
                Log.w(" error ", e.toString());
            }



            }catch (Exception e) {

            }

            return diversosAvaiable;



        }

        @Override
        protected void onPostExecute(ArrayList<HttpHandler2> diversosAvaiable) {
            SECUNDARIA cityAdapter = new SECUNDARIA(this, diversosAvaiable);
            lvDiversos.setAdapter(cityAdapter);



        }
    }

Мой HttpHandler2:

public class HttpHandler2 {
  protected int id;
  protected String id_pedido;
  protected String msg;
  protected String user;
  protected String gcmpartner;
  protected String id_partner;
  protected String date;


  public HttpHandler2(int id, String id_pedido, String user, String gcmpartner, String id_partner, String msg, String date) {
    this.id = id;
    this.id_pedido = id_pedido;
    this.msg = msg;
    this.user = user;
    this.gcmpartner = gcmpartner;
    this.id_partner = id_partner;
    this.date = date;
  }


  /////////////////////id////////////////////

  public int getId() {return id;}

  public void setId(int id) { this.id = id;}







  //////////////////////////////ID_PEDIDO/////////////////////////
  public String getid_pedido() {
    return id_pedido;
  }

  public void setid_pedido(String id_pedido) {
    this.id_pedido = id_pedido;
  }







  //////////////////////////////MSG/////////////////////////
  public String getmsg() {return msg;}

  public void setmsg(String msg) {
    this.msg = msg;
  }







  //////////////////////////////USER/////////////////////////
  public String getuser() {
    return user;
  }

  public void setuser(String user) {
    this.user = user;
  }








  //////////////////////////////GCM_PARTNER/////////////////////////
  public String getgcmpartner() {
    return gcmpartner;
  }

  public void setgcmpartner(String gcmpartner) {
    this.gcmpartner = gcmpartner;
  }







  //////////////////////////////ID_PEDIDO/////////////////////////
  public String getid_partner() {
    return id_partner;
  }

  public void setid_partner(String id_partner) {
    this.id_partner = id_pedido;
  }








  //////////////////////////////MSG/////////////////////////
  public String getdate() {
    return date;
  }

  public void setdate(String date) {
    this.date = date;
  }

}

И ОН Я ПОМОГ БЫ:

public class SECUNDARIA extends BaseAdapter {






    protected Activity activity;
    protected ArrayList<HttpHandler2> items;
    protected Activity context;

    public SECUNDARIA(Context activity, ArrayList<String> items) {
        this.activity = activity;
        this.items = items;


    }




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

    @Override
    public Object getItem(int position) {
        return items.get(position);
    }

    @Override
    public long getItemId(int position) {
        return items.get(position).getId();


    }


    @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View vi=convertView;
        View vi_admin=convertView;
        View vi_user=convertView;


    final HttpHandler2 city = items.get(position);




    LayoutInflater inflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    vi = inflater.inflate(R.layout.ver_chat, parent, false);








    TextView user = (TextView) vi.findViewById(R.id.notificaciones_respuesta);
    //user.setText(city.getuser()+"ID: "+city.getId());
    user.setText(city.getmsg());
    user.setPadding(28, 28, 28, 28);





    TextView msg = (TextView) vi.findViewById(R.id.notificaciones_respuesta2);
    msg.setText(city.getuser() + " F/H: " + city.getdate());




        /*COLORES*/

        GradientDrawable gd = new GradientDrawable();
        gd.setColors(new int[]{
                Color.parseColor("#8CA9F5A9"),
                Color.parseColor("#8CA9F5A9")
        });
        gd.setCornerRadius(24);




        GradientDrawable gn = new GradientDrawable();
        gn.setColors(new int[]{
                Color.parseColor("#8C58ACFA"),
                Color.parseColor("#8C58ACFA")
                //Color.CYAN
        });// Changes this drawbale to use a single color instead of a gradient
        gn.setCornerRadius(24);


         /*COLORES*/






        if (city.getuser().equals("admin")){

         LinearLayout mensages=(LinearLayout)vi.findViewById(R.id.ESTILOS_RESULTADOS);
         mensages.setGravity(Gravity.LEFT);
         user.setBackgroundDrawable(gd);
         user.setTextColor(msg.getContext().getResources().getColor(R.color.black));
         msg.setTextColor(msg.getContext().getResources().getColor(R.color.gray));







        } else if (city.getuser().equals("user")){


            LinearLayout mensages=(LinearLayout)vi.findViewById(R.id.ESTILOS_RESULTADOS);
            mensages.setGravity(Gravity.RIGHT);


        user.setBackgroundDrawable(gn);
        user.setTextColor(user.getContext().getResources().getColor(R.color.black));
         msg.setTextColor(msg.getContext().getResources().getColor(R.color.gray));

        }


        /*
        if (city.getmsg().equals("admin")){

            user.setTextAppearance(context, R.style.admin);
            msg.setTextAppearance(context, R.style.admin);



        } else{

            user.setTextAppearance(context, R.style.user);
            msg.setTextAppearance(context, R.style.user);

        }

*/





        return vi;

    }