JSONArray response with Volley for Android

android json android-volley

39,487

Solution 1

I the problem might be - you are already getting response as a JSONArray.

So, you can Call

JSONObject jresponse = response.getJSONObject(0);

and if you have more than 1 object in response, then

for(int i = 0; i < response.length(); i++){
    JSONObject jresponse = response.getJSONObject(i);
    String nickname = jresponse.getString("nickname");
    Log.d("nickname", nickname);
}

Remove this :

               try {
                    JSONArray jsonArray = new JSONArray(response);

                    for(int i=0;i<jsonArray.length();i++){
                        JSONObject jresponse = 
            jsonArray.getJSONObject(i);
            String nickname =                                 
       jresponse.getString("nickname");
                        Log.d("nickname",nickname);
                    }
                } catch (JSONException e) {
                    e.printStackTrace();
                }

and add :

try {
    JSONObject jresponse = response.getJSONObject(0);
    String nickname = jresponse.getString("nickname");
    Log.d("nickname",nickname);
}catch (JSONException e) {
    e.printStackTrace();
}

The Code looks good, however i think you might be missing a call to add jsonObjReq1 in the request queue. I would suggest to use Singleton Pattern.

Solution 2

Fixed!!!

                @Override
                public void onResponse(JSONArray response) {
                    Log.d("TAG", response.toString());

                    try {

                        Log.d("JsonArray",response.toString());
                        for(int i=0;i<response.length();i++){
                            JSONObject jresponse = response.getJSONObject(i);
                            String nickname = jresponse.getString("nickname");
                            Log.d("nickname",nickname);
                        }
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                    //pDialog.dismiss();

                }

There was no need to create a new JSONArray. It was created inside the onResponse() method. The next project I am assigned to do is going to have more complicate webservices.omg!!!

39,487

Author by

Theo

Beng Honours Degree in Electical in Electronic Engineering,University of Sussex UK MsC in Electrical Power,University of Newcastle Upon Tyne UK. OCJP SE 6 My github account. Android Projects published on google play Easy News. Easy Movies.

Updated on July 23, 2022

Comments

Theo almost 2 years

I am posting some data into the database using Volley and I get the following jsonarray response.

[
  {
  "nickname":"panikos",
  "username":"[email protected]",
  "user_type":"LEADER",
  "latest_steps":"0"
  }
]

This is a sample of my code that unfortunately doesn't log out or debug the variable of "nickname" object:(.

final JsonArrayRequest jsonObjReq1 = new 
JsonArrayRequest(AppConfig.URL_GET_TEAM, jsonObject,
            new com.android.volley.Response.Listener<JSONArray>() {

                @Override
                public void onResponse(JSONArray response) {
                    Log.d("TAG", response.toString());

                    try {
                        JSONArray jsonArray = new JSONArray(response);

                        for(int i=0;i<jsonArray.length();i++){
                            JSONObject jresponse = 
                jsonArray.getJSONObject(i);
                String nickname =                                 
           jresponse.getString("nickname");
                            Log.d("nickname",nickname);
                        }
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                    //pDialog.dismiss();

                }
            }, new com.android.volley.Response.ErrorListener() {

        @Override
        public void onErrorResponse(VolleyError error) {
            VolleyLog.d("TAG", "Error: " + error.getMessage());
            //pDialog.dismiss();

        }
    }) {

        @Override
        public String getBodyContentType() {
            return "application/json; charset=utf-8";
        }


    };

Any ideas? Am I missing something?

Thanks.

Theo almost 9 years

Thanks for the reply. Yes jsonObjReq1 is in the queue.
Theo almost 9 years

AppController.getInstance().addToRequestQueue(jsonObjReq1, tag_json_obj);
Theo almost 9 years

But I don't whats wrong and can't read the nickname object. It's so annoying!
Theo almost 9 years

nope. I don't get any errors. I just put a breakpoint inside the onErrorResponse method and so nothing.
Theo almost 9 years

The breakpoint in JSONArray jsonArray = new JSONArray(response); gives the JSON Array response. So it gets there. After that things are getting messy.
Kushal Sharma almost 9 years

I think if the app is not crashing, but must be leaving a volley log. can you show the log
Theo almost 9 years

org.json.JSONException: Not a primitive array: class org.json.JSONArray
Theo almost 9 years

at app.victory.walking.thewalkingviktory.InvitationBoard$4.onRe‌sponse(InvitationBoa‌rd.java:189)
Kushal Sharma almost 9 years

You don't have to and your own question .. Please accept my and if it was helpful
impossible almost 8 years

Hey, I am getting can not resolve getJSONObject(int). Any guesses?