convert a json object response into array and get both key and value android

Question

I have a json response which is dynamic such that even the key name and index no.can change

{
"Assigned": {
    "DC": 7,
    "EmpCode": "E0104",
    "FS": 8
}
}

I want to convert it into JsonArray and fetch all the key names and values dynamically under the object 'Assigned'.But I am only getting the value name by trying this.

try {
                        //converting dynamic jsonobject to json array and fetching value as well as key name
                        JSONObject jsonObject = response.getJSONObject("Assigned");
                        Iterator x = jsonObject.keys();
                        JSONArray jsonArray = new JSONArray();
                        while (x.hasNext()) {
                            String key = (String) x.next();
                            jsonArray.put(jsonObject.get(key));
                    }
                        Toast.makeText(RolesActivity.this,jsonArray.toString(), Toast.LENGTH_LONG).show();
                        Log.d("jsonarray",jsonArray.toString());

                    }
                    catch (Exception e)
                    {
                        e.printStackTrace();
                        Toast.makeText(RolesActivity.this, e.toString(), Toast.LENGTH_SHORT).show();
                    }

that is completely wrong API architecture - to use json object as json array. *Correct* solution is to fix it on backend — Vladyslav Matviienko, Feb 22 '18 at 13:01
that api is being used by website and other applications as well so cant ask that to be edited.I need to work with that only.please help — user8601021, Feb 22 '18 at 13:03
only if I get the corresponding key name and value dynamically,my job will be done — user8601021, Feb 22 '18 at 13:04
cant u please edit the code and put a sample code of hashmap here? — user8601021, Feb 22 '18 at 13:05
Possibly similar to this https://stackoverflow.com/questions/37883748/how-can-i-parse-an-associative-array-using-gson-converter-in-retrofit — Ashish Kumar, Feb 22 '18 at 13:08

Vladyslav Matviienko · Answer 1 · 2018-02-22T13:09:46.713

1

You can get the JSONObject's keys list by calling JSONObject.keys() (as Iterator), or JSONObject.names() (as JSONArray)

After that you can iterate through the keys, and get each key's value by using JSONObject.getString(key)

edited Feb 22 '18 at 13:09

answered Feb 22 '18 at 13:07

Vladyslav Matviienko

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get(key) is actually giving me the value.please edit the code and post it – user8601021 Feb 22 '18 at 13:09
@user8601021, `get(key) is actually giving me the value` that's right, and I just told how to get the keys in my answer – Vladyslav Matviienko Feb 22 '18 at 13:10
i want the key name – user8601021 Feb 22 '18 at 13:12
@user8601021, that is completely clear to me, and the methods I have posted return **the Iterator through the key names** and **JSONArray of the key names** – Vladyslav Matviienko Feb 22 '18 at 13:13

toffor · Answer 2 · 2018-02-22T13:15:09.057

0

First create a pojo class

  private HashMap<String, String> parseResponse(){

    String json = ""; //  your json string

    Gson gson = new Gson();

    Response response =  gson.fromJson(json, Response.class)

    return response.getAssigned();

}


public class Response {

    @SerializedName("Assigned")
    private HashMap<String, String> assigned;

    public HashMap<String, String> getAssigned() {
        return assigned;
    }
}

than parse with Gson library. You can read key and values from assigned Hashmap.

edited Feb 22 '18 at 13:15

answered Feb 22 '18 at 13:07

toffor

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please post the complete code.I have not used gson before – user8601021 Feb 22 '18 at 13:08
Check my updated answer. And this is the Gson github link https://github.com/google/gson – toffor Feb 22 '18 at 13:16
i will try 2moro.have to go now – user8601021 Feb 22 '18 at 13:16

convert a json object response into array and get both key and value android

2 Answers2