How to parse nested json array in android using volley library

Question

I have nested json array in below format.I am using volley liabrary for JSON Parsing.

{
"City": [{
        "name": "Mumbai",
        "Mumbai": [{
            "area": "andheri",

            "diler": [{
                "DName": "yuvraj"
            }]
        }, {
            "area": "jogeshwari"
        }, {
            "area": "goregaon"
        }]
    },

    {

        "name": "Nashik",
        "Nashik": [{
            "area": "clg rd",
            "diler": [{
                "DName": "yuvraj"
            }]
        }, {
            "area": "GP RD",
            "diler": [{
                "DName": "Roshan"
            }]
        }, {
            "area": "CBS",
            "diler": [{
                "DName": "Deepak"
            }]
        }]

    }, {
        "name": "Bengaluru"
    }
]}

Below is the code which i have write in android.

   jsonURL = "http://192.168.1.11/cycle_webservices/testing.json";

    buttonReq.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(
                    jsonURL,
                    new Response.Listener<JSONArray>() {
                        @Override
                        public void onResponse(JSONArray response) {
                            try {
                                for (int i = 0; i < response.length(); i++) {
                                    JSONObject jsonObject = response.getJSONObject(i);
                                    String name = jsonObject.getString("name");
                                    String area = jsonObject.getString("area");
                                    String diler = jsonObject.getString("diler");

                                    textView.append("\nCity: " + name + "\nArea: " + area + "\nDealer: " + diler +   "\n");
                                }
                            } catch (JSONException e) {
                                e.printStackTrace();
                                Toast.makeText(getApplicationContext(), "Error: " + e.getMessage(), Toast.LENGTH_LONG).show();
                            }
                        }
                    },
                    new Response.ErrorListener() {
                        @Override
                        public void onErrorResponse(VolleyError error) {
                            Log.e("VOLLEY", "ERROR");
                            Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_SHORT).show();
                        }
                    }
            );
            requestQueue.add(jsonArrayRequest);
        }
    });

But i am getting Errors while parsing it in Android. The error is- JSONObject can not be converted to JSONArray

Can anyone please provide sample code to parse this json Array.

Thanks in Advance

please add code what you have tried so far to parse response — Pavneet_Singh
– Pavneet_Singh, Commented Nov 26, 2016 at 12:17
Please paste your code here, then only people can understands your problem and you will get fast answer. — Pratik Dasa
– Pratik Dasa, Commented Nov 26, 2016 at 12:19
I think you are parsing an Object City into an array of City, change the City into object so the problem would be solved. — Mohsen Mirhoseini
– Mohsen Mirhoseini, Commented Nov 26, 2016 at 12:22
your response is JsonObject and you are parsing JsonArray that is why this error is coming. Call JsonObjectRequest in volley instaed of JsonArrayRequest @Monali — Pratik Dasa
– Pratik Dasa, Commented Nov 26, 2016 at 12:24

Sanwal Singh · Accepted Answer · 2016-11-26 12:32:01Z

Here is your problem solution, use below code

 try {
        JSONObject jsonObject = new JSONObject("response");
        JSONArray jsonArray = jsonObject.getJSONArray("City");
        for (int i = 0; i < jsonArray.length(); i++) {
            JSONObject object = jsonArray.getJSONObject(i);
            String name = object.getString("name");
            if (object.length() != 0) {
                Iterator<String> key = object.keys();
                while (key.hasNext()) {
                    String cityname = key.next();
                    JSONArray ja = object.getJSONArray(cityname);
                    for (int j = 0; j < ja.length(); j++) {
                        JSONObject object1 = ja.getJSONObject(j);
                        String area = object1.getString("area");

                    }
                }
            }

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

And try to make your JSON format same.

Mohsen Mirhoseini · Accepted Answer · 2016-11-26 12:26:27Z

3

The point is the first json node is a JsonObject, change your code this way and continue parsing:

new Response.Listener<JSONObject>() {
    @Override
    public void onResponse(JSONObject response) {

answered Nov 26, 2016 at 12:26

Mohsen Mirhoseini

8,9906 gold badges40 silver badges60 bronze badges

Comments

Mahesh Gawhane · Accepted Answer · 2017-07-22 11:26:14Z

1

Use JSONObject for parsing data like:

  JSONObject jsonObject = new JSONObject(response);

  JSONArray jsonArray = jsonObject.getJSONArray("City");

  for(int i = 0; i<jsonArray.length(); i++)
  {
      JSONObject jsonObject = jsonArray .getJSONObject(i);

      String name = jsonObject.getString("name");

      JSONArray city_array = jsonObject.getJSONArray(name);

      for(int j=0; j<city_array.length(); j++)
      {
          JSONObject obj = city_array.getJSONObject(j);

          String area = obj.getString("area");

          JSONArray diler_array = obj.getJSONArray("diler");

          JSONObject obj1 = diler_array.getJSONObject(0);

          String DName = obj1.getString("DName");
      }
  }

Please check edited answer.

edited Jul 22, 2017 at 11:26

answered Nov 26, 2016 at 12:28

Mahesh Gawhane

3383 silver badges20 bronze badges

Comments

Sanjeev Pal · Accepted Answer · 2018-01-28 19:29:33Z

pass data array inside array in android using volley

public List<HashMap<String,String>> returnJsonforPhp(){
  HashMap<String,String> map = new HashMap<String,String>();
  List<HashMap<String,String>> forjson= new ArrayList<HashMap<String,String>>();
  /*for(int i=0;i<dblist;i++) {
    map.put("name",dblist.getName());
    map.put("email",dblist.getEmail());
    map.put("mobno",dblist.getMobno());
    forjson.add(map);
  }*/

  map.put("name","ravi");
  map.put("email","[email protected]");
  map.put("mobno","9897939595");
  forjson.add(map);
  return forjson;
}

String OTP_Url = "https://www.yourdomain.com/rest/updateregistration/";

public String getJson() throws JsonProcessingException {

List> list = new ArrayList>(); List>> newlist = new ArrayList>>(); newlist.add(list);

    HashMap<String,String> map = new HashMap<String, String>();
    map.put("name","knnkl");
    map.put("email","kjbjbk");
    map.put("password","njnjknk");

    list.add(map);
    newlist.add(list);
    String parsedJson = new ObjectMapper().writeValueAsString(newlist);//json conversion
    return parsedJson;
}

compile ( [group: 'com.fasterxml.jackson.core', name: 'jackson-core', version: '2.4.1'], [group: 'com.fasterxml.jackson.core', name: 'jackson-annotations', version: '2.4.1'], [group: 'com.fasterxml.jackson.core', name: 'jackson-databind', version: '2.4.1'] )

Collectives™ on Stack Overflow

How to parse nested json array in android using volley library

4 Answers 4

Comments

Comments

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

4 Answers 4

Comments

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related