how to take/parse url of image? JSON / Volley library

Question

As you can see in the picture I have JSON object 'multimedia' which has information about picture in 4 different formats. I need url only on of them. Lets say which had standard format (75x75). I use volley library in my android application. I am confused about how to take/parse url (in string format is enough) of image that underlined in the picture.

Here is code that I used:

NewsFragment:

    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        volleySingleton = VolleySingleton.getInstance();
        requestQueue = volleySingleton.getRequestQueue();
        sendJsonRequest();
    }

    private void sendJsonRequest(){
        JsonObjectRequest request = new JsonObjectRequest(Request.Method.GET,
                getRequestUrl(10),
                null,
                new Response.Listener<JSONObject>() {
                @Override
                public void onResponse(JSONObject response) {
                    parseJSONRequest(response);
                }
                }, new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {

                }
                });
        requestQueue.add(request);
    }

    private void parseJSONRequest(JSONObject response){
        if(response==null || response.length()==0){
            return;
        }
        try {
            JSONArray arrayResult = response.getJSONArray(Keys.EndPointNews.KEY_RESULTS);

            for (int i = 0; i < arrayResult.length(); i++){
                JSONObject currentResult = arrayResult.getJSONObject(i);

                String section = currentResult.getString(Keys.EndPointNews.KEY_SECTION);
                String subsection = currentResult.getString(Keys.EndPointNews.KEY_SUBSECTION);
                String title = currentResult.getString(Keys.EndPointNews.KEY_TITLE);
                String article_abstract = currentResult.getString(Keys.EndPointNews.KEY_ABSTRACT);
                String published_date = currentResult.getString(Keys.EndPointNews.KEY_PUBLISHED_DATE);

                // HERE IS A PROBLEM: EDIT:
                JSONArray arrayMultimedia = currentResult.getJSONArray(Keys.EndPointNews.KEY_MULTIMEDIA);
                JSONObject objectMultimedia = arrayMultimedia.getJSONObject(0);
                String multimediaURL = null;
                if(objectMultimedia.has(Keys.EndPointNews.KEY_MULTIMEDIA_URL))
                {
                       multimediaURL = objectMultimedia.optString(Keys.EndPointNews.KEY_MULTIMEDIA_URL);
                }

                News news = new News();

                news.setSection(section);

                news.setSubsection(subsection);
                news.setArticleTitle(title);
                news.setArticleAbstract(article_abstract);
                Date date = mDateFormat.parse(published_date);
                news.setPublishedDate(date);

                //EDIT
                news.setMultimediaURL(multimediaURL);

                mListNews.add(news);
            }
            Toast.makeText(getActivity(),mListNews.toString(),Toast.LENGTH_LONG).show();
        }catch (JSONException e){

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

THANKS FOR ANY HELP!

EDIT:

public String getMultimediaURL(){
     return multimediaURL;
}
public void setMultimediaURL(String multimediaURL){
     this.multimediaURL = multimediaURL;
}

Answer 1

I must suggest you to go with GSON library for parsing your JSON reposnses. it is very easy, you have to just create your template/entity classes. here is the link and download gson library from here

OR

refer below answer by @ρяσѕρєя K

OR

refer this answer

Answer 2

multimedia is JSONArray instead of JSONObject. get multimedia json array from currentResult JSONObject:

JSONObject currentResult = arrayResult.getJSONObject(i);
JSONArray arrMultimedia = currentResult.getJSONArray(
                                     Keys.EndPointNews.KEY_MULTIMEDIA);

multimedia array contain JSONObejct so get JSONObject from arrMultimedia to get all values using key:

JSONObject jsonObjMultimedia = arrMultimedia.getJSONObject(0);
String strPicUrl=jsonObjMultimedia.optString("url");