how to parse JsonArray and set value on Textview in Android

Question

Below is my Json response from getting when Hit on Url with parsing parameter strlogid=101

[

  {

    "earnpoints": 411,
    "type": "C"
  },

  {

    "earnpoints": 1600,
    "type": "G"
  },

  {

    "earnpoints": 13540,
    "type": "I"
  }

]

Below is my code-To show Points on 3 different textview

private class PointTask extends AsyncTask<String, Void, Boolean> {

        protected Boolean doInBackground(final String... args) {

            JSONParse jParser = new JSONParse();

            HashMap<String, String> hMap = new HashMap<>();
            hMap.put("strlogid", "101");
            JSONArray jsonarray = jParser.getJSONFromUrl(url,hMap);

            // get JSON data from URL
            for (int i = 0; i < jsonarray.length(); i++) {
                try {
                    JSONObject c = (JSONObject) jsonarray.get(i);
                     c_point=c.getString("points");
                     g_point=c.getString("points");
                    i_point=c.getString("points");
                    t_point = cpoint+gpoint+ipoint;
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
            return null;
            }
        @Override
        protected void onPostExecute(final Boolean success) {
            txtTotalPoints.setText(t_point);
            txtOwnPoints.setText(g_point);
            txtClubPoints.setText(c_point);
            txtVoucherPoints.setText(i_point);

        }
    }

TotalPoints,OwnPoints,ClubPoints,VoucherPoints are show on Textview respectively

tones of examples are in stack overflow regarding json parsing — Android Surya, Aug 11 '16 at 07:25
Possible duplicate of [Get JSONArray without array name?](http://stackoverflow.com/questions/10164741/get-jsonarray-without-array-name) — Vishal Thakkar, Aug 11 '16 at 07:28

score 0 · Answer 1 · answered Aug 11 '16 at 07:31

0

Dont use async task for json parsing. I would reccomend you to use volley.

Here is the link\

http://www.androidhive.info/2014/05/android-working-with-volley-library-1/

answered Aug 11 '16 at 07:31

Rohit Sharma

83
10

The OP does not mention any network Operation, It might just be a JSON coming from an input file or related. – Enzokie Aug 11 '16 at 07:35
While the link is helpful, it may eventually break, at SO they recommend that you extract the most important parts from the link in question and post them inside your answer, perhaps as a quote, to ensure that your answer doesn't become significantly less useful in the future. – Troyseph Aug 11 '16 at 09:04

score 0 · Accepted Answer · answered Aug 11 '16 at 07:36

Try this

protected Boolean doInBackground(final String... args) {

        JSONParse jParser = new JSONParse();

        HashMap<String, String> hMap = new HashMap<>();
        hMap.put("strlogid", "101");
        JSONArray jsonarray = jParser.getJSONFromUrl(url,hMap);

        // get JSON data from URL
        for (int i = 0; i < jsonarray.length(); i++) {
                JSONObject c = (JSONObject) jsonarray.get(i);
                if (c.getString("type").toString().equalsIgnoreCase("C")) {
                    c_point = c.getInt("earnpoints");
                } else if (c.getString("type").toString().equalsIgnoreCase("G")) {
                    g_point = c.getInt("earnpoints");
                } else if (c.getString("type").toString().equalsIgnoreCase("I")) {
                    i_point = c.getInt("earnpoints");
                }
            }
            t_point = cpoint + gpoint + ipoint;
        } catch (JSONException e) {
            e.printStackTrace();
        }
        return null;
        }
    @Override
    protected void onPostExecute(final Boolean success) {
        txtTotalPoints.setText(t_point);
        txtOwnPoints.setText(g_point);
        txtClubPoints.setText(c_point);
        txtVoucherPoints.setText(i_point);

    }
}

There is a lot of controversy surrounding code only answers, perhaps you could explain why your code is the best answer to the question? [Controversy](http://meta.stackexchange.com/questions/114762/explaining-entirely-code-based-answers), [more](http://meta.stackexchange.com/questions/95470/down-vote-code-only-answers), [yet more](http://meta.stackexchange.com/questions/140040/how-to-improve-low-quality-answers-consisting-of-only-a-code-block). Good luck! — Troyseph, Aug 11 '16 at 09:01

score -1 · Answer 3 · edited Aug 11 '16 at 08:55

-1

@Override
public void onPostSuccess(String result, int id, boolean isSucess) {
    // Log.e("re<><><><>", result);
    try {
        JSONArray ja = new JSONArray(result);
        for (int arr = 0; arr < ja.length(); arr++) {
            JSONObject json1 = ja.getJSONObject(arr);

            Log.e("length", "" + ja.length());
            // Getting JSON Array node
            String earnpoints= json1.getString("earnpoints");
            String type = json1.getString("type");
        }
     catch (JSONException e) {
        e.printStackTrace();
        Toast.makeText(LoginPage.this, "Please try again later", Toast.LENGTH_SHORT).show();
    }
}

edited Aug 11 '16 at 08:55

Troyseph

4,960
3
38
61

answered Aug 11 '16 at 07:34

Manbir Kakkar

1

Welcome to StackOverflow, [please consider taking the tour](http://stackoverflow.com/tour), there is a lot of controversy surrounding code only answers, perhaps you could explain why your code is the best answer to the question? [Controversy](http://meta.stackexchange.com/questions/114762/explaining-entirely-code-based-answers), [more](http://meta.stackexchange.com/questions/95470/down-vote-code-only-answers), [yet more](http://meta.stackexchange.com/questions/140040/how-to-improve-low-quality-answers-consisting-of-only-a-code-block). Good luck! – Troyseph Aug 11 '16 at 09:00

how to parse JsonArray and set value on Textview in Android

3 Answers3