CODEWITHSUNDEEP
androidandroid-asynctask
wiko
wiko

Reputation: 453

error type mismatch asynctask in android

I'm trying to retrieve data from mysql using asynctask. But I got this

" Type mismatch: cannot convert from AsyncTask to String"

Though the return from the asynctask process is already string

Here's my codes

     public void tampilkanPenyakit() {
                try {
                    String nama = URLEncoder.encode(username, "utf-8");
                    urltampil += "?" + "&nama=" + nama;
                } catch (UnsupportedEncodingException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                xResult = getRequestTampil(urltampil);
                try {
                    parse();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }

    class ProsesTampil extends AsyncTask<String, Void, String>{

                @Override
                protected String doInBackground(String... params) {
                     String sret = "";
                    HttpClient client = new DefaultHttpClient();
                    HttpGet request = new HttpGet(params[0]);
                    try{
                  HttpResponse response = client.execute(request);
                      sret = EditPenyakit.request(response);

                    }catch(Exception ex){
                }

                    return sret;
                    // TODO Auto-generated method stub
                }

                @Override
                protected void onPostExecute(String result) {
                    // TODO Auto-generated method stub
                    super.onPostExecute(result);

                }

            } 

     public String getRequestTampil(String UrlTampil){

              String sret="";
              sret= new ProsesTampil().execute(UrlTampil);

                return sret;

        }

private void parse() throws Exception {
                //jObject = new JSONObject(xResult);

               jObject = new JSONObject(xResult);
               String sret = "";
                JSONArray menuitemArray = jObject.getJSONArray("food");
                cb_menu1 = (CheckBox) findViewById(R.id.cb_menu1);
                cb_menu2 = (CheckBox) findViewById(R.id.cb_menu2);
                cb_menu3 = (CheckBox) findViewById(R.id.cb_menu3);

                for (int i = 0; i < menuitemArray.length(); i++) {
                    sret =menuitemArray.getJSONObject(i).getString(
                    "penyakit").toString();
                    System.out.println(sret);

                    if (sret.equals("1")){
                        cb_menu1.setChecked(true);
                    }
                    else if (sret.equals("2")){
                        cb_menu2.setChecked(true);
                    }

                }
      }

Any help would be appreciated. thanks

Upvotes: 0

Views: 60

Answers (1)

fpanizza
fpanizza

Reputation: 1589

The AsyncTask execute() method return the Asyntask itself, you cannot convert it to String.

You need to handle the result in the onPostExecute() method.

Other option could be use the AsynTask get method :

sret= new ProsesTampil().execute(UrlTampil).get();

Take in account the doc: Waits if necessary for the computation to complete, and then retrieves its result.

Upvotes: 2

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