Ich erstelle eine Anwendung. In meiner App erhalte ich eine Antwort und verschiebe sie in einem benutzerdefinierten Warndialog. Bis hierhin funktioniert sie einwandfrei. Ich versuche nun, ein Element aus dem Warndialog auszuwählen, das gespeichert werden soll vorzugsweise, damit die Daten nicht jedes Mal abgerufen werden müssen.

Folgend ist mein Code-Snippet.

The folgende Antwort, die ich erhalte, ist:

    {
    "states": [
        {
            "id": "1",
            "state_slug": "agra",
            "statename": "Agra"
        },
        {
            "id": "2",
            "state_slug": "andaman_and_nicobar_islands",
            "statename": "Andaman and Nicobar Islands"
        },
        {
            "id": "3",
            "state_slug": "andhra_pradesh",
            "statename": "Andhra Pradesh"
        },
        {
            "id": "4",
            "state_slug": "arunachal_pradesh",
            "statename": "Arunachal Pradesh"
        },
        {
            "id": "5",
            "state_slug": "assam",
            "statename": "Assam"
        },
        {
            "id": "6",
            "state_slug": "bihar",
            "statename": "Bihar"
        },
        {
            "id": "7",
            "state_slug": "bulandshahr",
            "statename": "Bulandshahr"
        },
        {
            "id": "8",
            "state_slug": "chhattisgarh",
            "statename": "Chhattisgarh"
        },
        {
            "id": "9",
            "state_slug": "dadra_and_nagar_haveli",
            "statename": "Dadra & Nagar Haveli"
        },
        {
            "id": "10",
            "state_slug": "daman_and_diu",
            "statename": "Daman & Diu"
        },
        {
            "id": "11",
            "state_slug": "delhi",
            "statename": "Delhi"
        },
        {
            "id": "12",
            "state_slug": "farrukhabad",
            "statename": "Farrukhabad"
        },
        {
            "id": "13",
            "state_slug": "goa",
            "statename": "Goa"
        },
        {
            "id": "14",
            "state_slug": "gujarat",
            "statename": "Gujarat"
        },
        {
            "id": "15",
            "state_slug": "haryana",
            "statename": "Haryana"
        },
        {
            "id": "16",
            "state_slug": "himachal_pradesh",
            "statename": "Himachal Pradesh"
        },
        {
            "id": "17",
            "state_slug": "jammu_and_kashmir",
            "statename": "Jammu & Kashmir"
        },
        {
            "id": "18",
            "state_slug": "jharkhand",
            "statename": "Jharkhand"
        },
        {
            "id": "19",
            "state_slug": "karnataka",
            "statename": "Karnataka"
        },
        {
            "id": "20",
            "state_slug": "kerala",
            "statename": "Kerala"
        },
        {
            "id": "21",
            "state_slug": "lakshadweep",
            "statename": "Lakshadweep"
        },
        {
            "id": "22",
            "state_slug": "madhya_pradesh",
            "statename": "Madhya Pradesh"
        },
        {
            "id": "23",
            "state_slug": "maharashtra",
            "statename": "Maharashtra"
        },
        {
            "id": "24",
            "state_slug": "manipur",
            "statename": "Manipur"
        },
        {
            "id": "25",
            "state_slug": "meghalaya",
            "statename": "Meghalaya"
        },
        {
            "id": "26",
            "state_slug": "mizoram",
            "statename": "Mizoram"
        },
        {
            "id": "27",
            "state_slug": "nagaland",
            "statename": "Nagaland"
        },
        {
            "id": "28",
            "state_slug": "orissa",
            "statename": "Orissa"
        },
        {
            "id": "29",
            "state_slug": "pondicherry",
            "statename": "Pondicherry"
        },
        {
            "id": "30",
            "state_slug": "punjab",
            "statename": "Punjab"
        },
        {
            "id": "31",
            "state_slug": "purulia",
            "statename": "Purulia"
        },
        {
            "id": "32",
            "state_slug": "rajasthan",
            "statename": "Rajasthan"
        },
        {
            "id": "33",
            "state_slug": "sikkim",
            "statename": "Sikkim"
        },
        {
            "id": "34",
            "state_slug": "tamil_nadu",
            "statename": "Tamil Nadu"
        },
        {
            "id": "35",
            "state_slug": "tripura",
            "statename": "Tripura"
        },
        {
            "id": "36",
            "state_slug": "uttar_pradesh",
            "statename": "Uttar Pradesh"
        },
        {
            "id": "37",
            "state_slug": "uttarakhand",
            "statename": "Uttarakhand"
        },
        {
            "id": "38",
            "state_slug": "west_bengal",
            "statename": "West Bengal"
        }
    ]
}

Ich zeige den Statusnamen in meinem Warndialog an,

class LoadAllStates extends AsyncTask<String, String, ArrayList<HashMap<String,String>>> {

          ArrayAdapter<String> adapterallstates ;
        private ProgressDialog pDialog;

            @Override
            protected void onPreExecute() {
                super.onPreExecute();
                pDialog = new ProgressDialog(MainActivity.this);
                pDialog.setMessage("Please wait..");
                pDialog.setIndeterminate(true);
               // pDialog.setIndeterminateDrawable(getResources().getDrawable(R.drawable.custom_progress));
                pDialog.setCancelable(true);
                pDialog.show();

            }
            protected ArrayList<HashMap<String,String>> doInBackground(String... args) {
                ServiceHandler sh = new ServiceHandler();

                // Making a request to url and getting response
                statedata = new ArrayList<HashMap<String, String>>();
                String jsonStr = sh.makeServiceCall(STATE_URL, ServiceHandler.GET);

                Log.d("Response: ", "> " + jsonStr);

                if (jsonStr != null) {
                    try {
                        JSONObject jsonObj = new JSONObject(jsonStr);
                        state_list = jsonObj.getJSONArray(COUNTRY_LIST);

                        // looping through All Contacts
                        for (int i = 0; i < state_list.length(); i++) {
                            JSONObject c = state_list.getJSONObject(i);

                            // creating new HashMap
                            HashMap<String, String> map = new HashMap<String, String>();

                            // adding each child node to HashMap key => value
                              map.put(STATE_SLG, c.getString(STATE_SLG));
                          map.put(STATE_ID, c.getString(STATE_ID));
                            map.put(STATE_NAME,c.getString(STATE_NAME));

                           statedata.add(map);

                        }
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                } else {
                    Log.e("ServiceHandler", "Couldn't get any data from the url");
                }

                return statedata;
            }

            protected void onPostExecute(ArrayList<HashMap<String,String>> result) {

                super.onPostExecute(result);
               pDialog.dismiss();

                String[] arrallstates=new String[statedata.size()];
                for(int index=0;index<statedata.size();index++){
                          HashMap<String, String> map=statedata.get(index);
                      arrallstates[index]=map.get(STATE_NAME);
                 }  


                 // pass arrConuntry array to ArrayAdapter<String> constroctor :
                adapterallstates = new ArrayAdapter<String>(MainActivity.this,
                                    android.R.layout.simple_spinner_dropdown_item,
                                                                          arrallstates);
                spstate.setOnClickListener(new OnClickListener() {

                    @Override
                    public void onClick(View w) {
                          new AlertDialog.Builder(MainActivity.this)
                          .setTitle("Select")
                          .setAdapter(adapterallstates, new DialogInterface.OnClickListener() {

                            @Override
                            public void onClick(DialogInterface dialog, int which) {

                                spstate.setText(adapterallstates.getItem(which).toString());

                                 try {

                                     String n  = state_list.getJSONObject(which).getString("state_slug");


                                    statename=state_list.getJSONObject(which).getString("state_slug");
                                    stnm=state_list.getJSONObject(which).getString(STATE_NAME);

                                     Log.d("Response statenm: ", "> " + statename);

                                     SharedPreferences.Editor editor = sharedpreferences.edit();

                                        editor.putString(States, n);
                                        editor.commit();
                                     new LoadAllStatesCity().execute();

                                    // Toast.makeText(getActivity(), statename, Toast.LENGTH_LONG).show();
                                } catch (JSONException e) {
                                    // TODO Auto-generated catch block
                                    e.printStackTrace();
                                }

                              dialog.dismiss();
                            }
                          }).create().show();
                        }
                });

            }
     }