Fill data to a custom ListView from server (Web Service)

Good afternoon.

I'm running a web service on Android, in this case I'm pulling data from a table in MySql that I have on a server to populate a custom ListView.

The query I have is that the data I'm trying to get is not being populated in the ListView. I'm using PHP, MySQL.

Being more specific, I'm pulling the data from a table in mysql, I save it in a get set class, and then I create an array of that class and then populate it in the custom listview, I'll leave the code of all this below.

This is my Json result that I get from the php.

[{"idproducto":"1","idtipo":"1","descproducto":"Loza de tama\u00f1o 7x9","imagen":"http:\/\/appfotoceramica.pe.hu\/01.jpg"},{"idproducto":"2","idtipo":"2","descproducto":"L\u00e1pida cl\u00e1sica","imagen":"http:\/\/appfotoceramica.pe.hu\/hola.jpg"}]

Now this is the code on Android.

 public class Productos extends Activity {

  Spinner spTipoProducto;
  ListView listaProducto;
  ProgressDialog pd;

  String resultadoTotal;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, 0);
    setContentView(R.layout.activity_productos);

    spTipoProducto = (Spinner) findViewById(R.id.spSeleccionar);
    listaProducto = (ListView) findViewById(R.id.listaProductos);


   EjecutarTodo();

}

private String Conectar(){

    int respuesta = 0;
    StringBuilder stringBuilder = null;
    String linea = "";
    URL url = null;

    try{
        url = new URL("http://appfotoceramica.pe.hu/cargarimagen.php");

        HttpURLConnection conexion = (HttpURLConnection) url.openConnection();
        respuesta = conexion.getResponseCode();

        stringBuilder = new StringBuilder();

        if(respuesta == HttpURLConnection.HTTP_OK){

            InputStream inputStream = new BufferedInputStream(conexion.getInputStream());
            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));

            while((linea = bufferedReader.readLine()) != null){
                   stringBuilder.append(linea + "\n");
            }
        }

    }catch (Exception e){
        e.printStackTrace();
    }
    return resultadoTotal = stringBuilder.toString();
}

public void ObtenerJson(String result){
    try{

        JSONArray jsonArray = new JSONArray(result);
        ProductoBean pb;

        for(int i = 0; i < jsonArray.length(); i++){
        pb = new ProductoBean();

            pb.setCodigoproducto(jsonArray.getJSONObject(i).getInt("idproducto"));
            pb.setIdtipo(jsonArray.getJSONObject(i).getInt("idtipo"));
            pb.setDescproducto(jsonArray.getJSONObject(i).getString("descproducto"));
            pb.setImagen(jsonArray.getJSONObject(i).getString("imagen"));


        }

    }catch (Exception e){
        e.printStackTrace();
    }
}

protected class HiloCargarImagen extends AsyncTask<String, Void, Object>{

    @Override
    protected Object doInBackground(String... strings) {
        Conectar();
        return null;
    }

    protected void onPostExecute(Object result){
        pd.dismiss();
        ObtenerJson(resultadoTotal);
        ArrayList<ProductoBean> productoBean = new ArrayList<ProductoBean>();
        Adaptador adaptador = new Adaptador(Productos.this, productoBean);
        listaProducto.setAdapter(adaptador);

    }
}

private void EjecutarTodo(){
    pd = ProgressDialog.show(this, "Cargando productos", "Espere por favor...", true, false);
    new HiloCargarImagen().execute();
  }
}

This is the adapter to create the ListView personalization.

    public class Adaptador extends BaseAdapter {

Context context;
ArrayList<ProductoBean> pb;


public Adaptador(Context ctx, ArrayList<ProductoBean> productos){
    context = ctx;
    pb = productos;
}

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

@Override
public Object getItem(int i) {
    return pb.get(i);
}

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

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

    if(view == null){

        LayoutInflater layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        view = layoutInflater.inflate(R.layout.customlistview,viewGroup,false);

        TextView tipoProducto, descProducto;
        SmartImageView imagen;

        tipoProducto = (TextView) view.findViewById(R.id.textoTipoProducto);
        descProducto = (TextView) view.findViewById(R.id.textoDescripcionProducto);
        imagen = (SmartImageView) view.findViewById(R.id.imagenProducto);

        int id;

        id = pb.get(i).getIdtipo();

        if(id == 1){
            tipoProducto.setText("Lozas");
        }else if(id == 2){
            tipoProducto.setText("Lápidas");
        }else if(id == 3){
            tipoProducto.setText("Tarjeteros");
        }else{
            tipoProducto.setText("Fotos 20x30");
        }

        descProducto.setText(pb.get(i).getDescproducto());
        imagen.setImageUrl(pb.get(i).getImagen());

     }

    return view;
   }
}

I upload the php part anyway.

 <?php

$conexion =   mysqli_connect("mysql.hostinger.es","u534134956_jorge","jorgejorge","u534134956_appfo");

$query = mysqli_query($conexion, "select * from producto");

while($fila = mysqli_fetch_array($query, MYSQLI_ASSOC){

$idproducto = $fila["idproducto"];
$idtipo = $fila["idtipo"];
$descproducto = $fila["descproducto"];
$imagen = $fila["imagen"];

  $productos[] = array("idproducto" => $idproducto, "idtipo" => $idtipo, "descproducto" => $descproducto, "imagen" => $imagen);

  }

 $json = json_encode($productos);
 echo $json;


?>