How to get & parse a JSON object in Android? [duplicate]

Question 1

Possible Duplicate:
How do I parse JSON from a Java HTTPResponse?
How to parse json string in Android?

How can i parse this json string

{
"apiVersion": "2.1",
"data": {
 "id": "pHuoDqcIyqk",
 "uploaded": "2012-10-29T16:08:15.000Z",
 "updated": "2012-11-02T08:48:28.000Z",
 "uploader": "googlenexus",
 "category": "Tech",
 "title": "Nexus: Ask Me Anything",
 "description": "The Best of Google, now in 3 sizes. Introducing Nexus 4, Nexus 7 and Nexus 10. The new smartphone and tablets from Google. Shop now at play.google.com/nexus",
 "thumbnail": {
 "sqDefault": "http://i.ytimg.com/vi/pHuoDqcIyqk/default.jpg",
 "hqDefault": "http://i.ytimg.com/vi/pHuoDqcIyqk/hqdefault.jpg"
 },
 "player": {
 "default": "http://www.youtube.com/watch?v=pHuoDqcIyqk&feature=youtube_gdata_player",
 "mobile": "http://m.youtube.com/details?v=pHuoDqcIyqk"
 },
 "content": {
 "5": "http://www.youtube.com/v/pHuoDqcIyqk?version=3&f=videos&app=youtube_gdata",
 "1": "rtsp://v8.cache5.c.youtube.com/CiILENy73wIaGQmpyginDqh7pBMYDSANFEgGUgZ2aWRlb3MM/0/0/0/video.3gp",
 "6": "rtsp://v7.cache4.c.youtube.com/CiILENy73wIaGQmpyginDqh7pBMYESARFEgGUgZ2aWRlb3MM/0/0/0/video.3gp"
 },
 "duration": 61,
 "aspectRatio": "widescreen",
 "rating": 4.8985643,
 "likeCount": "5227",
 "ratingCount": 5363,
 "viewCount": 1038854,
 "favoriteCount": 0,
 "commentCount": 1442,
 "accessControl": {
 "comment": "allowed",
 "commentVote": "allowed",
 "videoRespond": "moderated",
 "rate": "allowed",
 "embed": "allowed",
 "list": "allowed",
 "autoPlay": "allowed",
 "syndicate": "allowed"
 }
}
}

Can anyone please tell me how to make a call to the above URL & get a JSON object, then parse it to get the desired info as a string?

Question 2

i dont have any idea of making webcalls , so waiting for solution.Pls help

Question 3

there are many links for json parsing ........try yourself first...one of the link is androidhive.info/2012/01/android-json-parsing-tutorial

Question 4

learn how to parse json string from this site androidhive.info/2012/01/android-json-parsing-tutorial

Question 5

I did homework for you: Android - JSON Parsing

Question 6

please tell me way first to get desired json object , parsing is secondary thing but how to make call first to get json object?

Question 7

Well too broad a question you are asking..

1) Do a http get request on the URL. (Or using this method) and get the response String, which is JSON. Some examples here

2) See this answer to see how to parse JSON.

Question 8

simple simple....

String str = "" // your JSON string
JSONObject json = new JSONObject(str);
String apiVersion = json.getString("apiVersion");
 // continue as before for the rest of it...

Question 9

you Can try below method. you can pass URL and get the Response as result String. public static String result;

public static boolean connect(String url) {
 boolean flag = false;
 HttpClient httpclient = new DefaultHttpClient();
 // Prepare a request object
 HttpGet httppost = new HttpGet(url);
 Log.e("url", url);
 // Execute the request
 HttpResponse response;
 try {
 // https://api.vkontakte.ru/method/audio.search?uid=163398985&q=akoncount=100&access_token=2a4db0e223f0f5ab23f0f5ab5f23da5680223f023f1f5a3c696b018be9b17b9
 response = httpclient.execute(httppost);
 // Examine the response status
 Log.i("vkontake", response.getStatusLine().toString() + "\n"
 + response);
 // Get hold of the response entity
 HttpEntity entity = response.getEntity();
 // If the response does not enclose an entity, there is no need
 // to worry about connection release
 if (entity != null) {
 // A Simple JSON Response Read
 InputStream instream = entity.getContent();
 Log.d("Jsomn Activity", "---- is --- " + instream);
 result = convertStreamToString(instream);
 Log.d("Jsomn Activity", "---- Result --- " + result);
 // now you have the string representation of the HTML request
 instream.close();
 } else {
 Log.d("Jsomn Activity", "---- is --- null ");
 }
 flag = true;
 net = false;
 } catch (Exception e) {
 Log.d("Jsomn Activity", "---- Catch --- " + e.toString());
 flag = false;
 e.printStackTrace();
 } finally {
 return flag;
 }
 }

Question 10

There are a couple of ways to do this. One easy way is to define an object structure that matches your data and use http://code.google.com/p/google-gson/ to fill it:

final URL url = new URL("http://yourURL.com");
final InputStream openStream = url.openStream();
final InputStreamReader inputStreamReader = new InputStreamReader(openStream);
final SearchResult searchResult = new Gson().fromJson(inputStreamReader, SearchResult.class);

If your searchResult class containts a field e.g. apiVersion, it will be filled with the data from JSON. Then you have a data field with the other fields inside etc. This is a very easy way to populate your data, but you will have to mirror the structure of the JSON stream in your object model.

Question 11

The JSON.org site contains no less than 20 different java implementations of JSON parsers.

Krishnabhadra 34.3k31 gold badges121 silver badges171 bronze badges · Answer 1 · 2012-11-02 09:22:02Z

0

Well too broad a question you are asking..

1) Do a http get request on the URL. (Or using this method) and get the response String, which is JSON. Some examples here

2) See this answer to see how to parse JSON.

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edited May 23, 2017 at 12:00

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answered Nov 2, 2012 at 9:22

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Budius 39.9k16 gold badges108 silver badges150 bronze badges · Answer 2 · 2012-11-02 09:22:47Z

simple simple....

String str = "" // your JSON string
JSONObject json = new JSONObject(str);
String apiVersion = json.getString("apiVersion");
 // continue as before for the rest of it...

Bhavesh Patadiya 25.8k15 gold badges77 silver badges107 bronze badges · Answer 3 · 2012-11-02 09:23:12Z

you Can try below method. you can pass URL and get the Response as result String. public static String result;

public static boolean connect(String url) {
 boolean flag = false;
 HttpClient httpclient = new DefaultHttpClient();
 // Prepare a request object
 HttpGet httppost = new HttpGet(url);
 Log.e("url", url);
 // Execute the request
 HttpResponse response;
 try {
 // https://api.vkontakte.ru/method/audio.search?uid=163398985&q=akoncount=100&access_token=2a4db0e223f0f5ab23f0f5ab5f23da5680223f023f1f5a3c696b018be9b17b9
 response = httpclient.execute(httppost);
 // Examine the response status
 Log.i("vkontake", response.getStatusLine().toString() + "\n"
 + response);
 // Get hold of the response entity
 HttpEntity entity = response.getEntity();
 // If the response does not enclose an entity, there is no need
 // to worry about connection release
 if (entity != null) {
 // A Simple JSON Response Read
 InputStream instream = entity.getContent();
 Log.d("Jsomn Activity", "---- is --- " + instream);
 result = convertStreamToString(instream);
 Log.d("Jsomn Activity", "---- Result --- " + result);
 // now you have the string representation of the HTML request
 instream.close();
 } else {
 Log.d("Jsomn Activity", "---- is --- null ");
 }
 flag = true;
 net = false;
 } catch (Exception e) {
 Log.d("Jsomn Activity", "---- Catch --- " + e.toString());
 flag = false;
 e.printStackTrace();
 } finally {
 return flag;
 }
 }

koljaTM 10.3k2 gold badges42 silver badges42 bronze badges · Answer 4 · 2012-11-02 09:27:23Z

There are a couple of ways to do this. One easy way is to define an object structure that matches your data and use http://code.google.com/p/google-gson/ to fill it:

final URL url = new URL("http://yourURL.com");
final InputStream openStream = url.openStream();
final InputStreamReader inputStreamReader = new InputStreamReader(openStream);
final SearchResult searchResult = new Gson().fromJson(inputStreamReader, SearchResult.class);

If your searchResult class containts a field e.g. apiVersion, it will be filled with the data from JSON. Then you have a data field with the other fields inside etc. This is a very easy way to populate your data, but you will have to mirror the structure of the JSON stream in your object model.

TML 13k3 gold badges42 silver badges47 bronze badges · Answer 5 · 2012-11-02 09:18:21Z

-1

The JSON.org site contains no less than 20 different java implementations of JSON parsers.

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answered Nov 2, 2012 at 9:18

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TML

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