Retrieve specific value inside array from json response in android

Question

I need to get the value of idinside studentarray. The response I get is,

{
  "response": {
      "student": [
        {
           "id": "125745",
           "module": 3,
           "status": 1
        }
      ]
   }
}

I tried using following code,

        String userId = null;
        try {
            JSONObject object = (JSONObject) new JSONTokener(response).nextValue();

            userId= object.getString("id");

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

But it doesn't work. How do I retrieve id?

Abu Faisal · Accepted Answer · 2017-06-11 14:01:23Z

1

You are almost there, just you need to do this:

JSONArray students = object.getJSONArray("student");
JSONObject student = students.getJSONObject(0);
userId= student.getString("id");

Because the id value is placed in a JSONObject, then inside a JSONArray at index 0, then it is again placed inside a JSONObject.

Also don't forget to handle exceptions, the code above, is just for your understanding.

Hope that helps!!

answered Jun 11, 2017 at 14:01

Abu Faisal

3983 silver badges12 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Bringoff · Accepted Answer · 2017-06-11 13:59:04Z

0

Your value is placed in json array. So, you need to retrieve response object using getJSONObject and then get student json array via getJSONArray. Then you will be able to iterate through student objects. There is no way to magically get id from json. Alternatively, you can map your json to Java objects using Gson, for example.

answered Jun 11, 2017 at 13:59

Bringoff

1,1131 gold badge10 silver badges25 bronze badges

Comments

Sarthak Gandhi · Accepted Answer · 2017-06-11 14:00:16Z

0

Try this :

Let all of the json is called

String serverResponse = "Response from the server";
try {
    JSONObject object = new JSONObject(serverResponse);
    String userId = object.getJSONObject("response").getJSONArray("student").getJSONObject(0).getString("id");
    }
catch (JSONException e) {
    e.printStackTrace();
}

Hope this helps.

answered Jun 11, 2017 at 14:00

Sarthak Gandhi

2,1701 gold badge18 silver badges25 bronze badges

Comments

merterpam · Accepted Answer · 2017-06-11 14:02:29Z

0

Assuming jsonObject is a reference to your root json, you can get id of the first student:

JSONObject response = (JSONObject) jsonObject.get("response");
JSONArray students = (JSONArray) response.get("student");
int id = (int) ((JSONObject)students.get(0)).get("id");

answered Jun 11, 2017 at 14:02

merterpam

7756 silver badges14 bronze badges

Collectives™ on Stack Overflow

Retrieve specific value inside array from json response in android

4 Answers 4

Comments

Comments

Comments

Comments

Your Answer

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

Related