Parsing JSON data in java from Facebook Graph response

Question

Here I have a response from the facebook server that returns the list of albums of a selected user. I want to create an array for all the album names labeled "name" as well as the "link" and "cover_photo" to be ready to processed into a listview

{
  "data": [
    {
      "id": "664462156031",
      "from": {
        "name": "Nate Ellender",
        "id": "68004222"
      },
      "name": "Mobile Uploads",
      "link": "https://www.facebook.com/album.php?fbid=664462156031&id=68004222&aid=2081375",
      "cover_photo": "754991180141",
      "count": 88,
      "type": "mobile",
      "created_time": "2012-05-12T00:38:14+0000",
      "updated_time": "2013-11-04T20:45:08+0000",
      "can_upload": false
    },
    {
      "id": "813288706431",
      "from": {
        "name": "Nate Ellender",
        "id": "68004222"
      },
      "name": "Bitstrips Photos",
      "link": "https://www.facebook.com/album.php?fbid=813288706431&id=68004222&aid=1073741826",
      "cover_photo": "813288781281",
      "count": 1,
      "type": "app",
      "created_time": "2013-10-31T21:53:11+0000",
      "updated_time": "2013-10-31T21:53:15+0000",
      "can_upload": false
    },
    {
      "id": "757384214481",
      "from": {
        "name": "Nate Ellender",
        "id": "68004222"
      },
      "name": "Galveston Vacation 2013",
      "description": "Our trip before joining Air Force",
      "link": "https://www.facebook.com/album.php?fbid=757384214481&id=68004222&aid=1073741825",
      "cover_photo": "757221350861",
      "count": 8,
      "type": "normal",
      "created_time": "2013-05-15T18:37:19+0000",
      "updated_time": "2013-05-15T22:12:52+0000",
      "can_upload": false,
      "likes": {
        "data": [
          {
            "id": "100002572634186",
            "name": "Misty O'Quain"
          },
          {
            "id": "100000582072776",
            "name": "Clifford Joyce"
          },
          {
            "id": "1045514613",
            "name": "Caity Ellender"
          }
        ],
        "paging": {
          "cursors": {
            "after": "MTA0NTUxNDYxMw==",
            "before": "MTAwMDAyNTcyNjM0MTg2"
          }
        }
      }
    },
    {
      "id": "542202136091",
      "from": {
        "name": "Nate Ellender",
        "id": "68004222"
      },
      "name": "Profile Pictures",
      "link": "https://www.facebook.com/album.php?fbid=542202136091&id=68004222&aid=2054735",
      "cover_photo": "749743202131",
      "count": 20,
      "type": "profile",
      "created_time": "2010-09-02T04:43:32+0000",
      "updated_time": "2013-04-13T13:46:14+0000",
      "can_upload": false
    },
    {
      "id": "646032913381",
      "from": {
        "name": "Nate Ellender",
        "id": "68004222"
      },
      "name": "Cover Photos",
      "link": "https://www.facebook.com/album.php?fbid=646032913381&id=68004222&aid=2079483",
      "cover_photo": "681058471881",
      "count": 2,
      "type": "cover",
      "created_time": "2012-03-22T00:25:50+0000",
      "updated_time": "2012-07-17T15:26:24+0000",
      "can_upload": false
    },
    {
      "id": "599115930391",
      "from": {
        "name": "Nate Ellender",
        "id": "68004222"
      },
      "name": "Timeline Photos",
      "link": "https://www.facebook.com/album.php?fbid=599115930391&id=68004222&aid=2073818",
      "cover_photo": "599115935381",
      "count": 1,
      "type": "wall",
      "created_time": "2011-10-20T14:25:23+0000",
      "updated_time": "2011-10-20T14:25:23+0000",
      "can_upload": false
    },
    {
      "id": "551798524851",
      "from": {
        "name": "Nate Ellender",
        "id": "68004222"
      },
      "name": "My Year - 2010",
      "link": "https://www.facebook.com/album.php?fbid=551798524851&id=68004222&aid=2060899",
      "cover_photo": "551798544811",
      "count": 1,
      "type": "normal",
      "created_time": "2010-12-19T05:11:51+0000",
      "updated_time": "2010-12-19T05:12:14+0000",
      "can_upload": false
    },
    {
      "id": "522841060841",
      "from": {
        "name": "Nate Ellender",
        "id": "68004222"
      },
      "name": "Night Lightnin",
      "description": "Always wanted to do this, because lightning is way cooler at night. Perhaps next time I'll be able to refine my methods a little. Read as \"bring tripod so you don't have to prop cam up on roof of car\"",
      "location": "Just north of Sulphur",
      "link": "https://www.facebook.com/album.php?fbid=522841060841&id=68004222&aid=2036447",
      "cover_photo": "522841195571",
      "count": 15,
      "type": "normal",
      "created_time": "2009-09-16T04:38:43+0000",
      "updated_time": "2009-09-16T04:42:32+0000",
      "can_upload": false
    },
    {
      "id": "513270939441",
      "from": {
        "name": "Nate Ellender",
        "id": "68004222"
      },
      "name": "The Stuff That Doesn't Make Another Album",
      "description": "See title.",
      "location": "Good question",
      "link": "https://www.facebook.com/album.php?fbid=513270939441&id=68004222&aid=2029083",
      "cover_photo": "513271029261",
      "count": 9,
      "type": "normal",
      "created_time": "2009-03-03T06:43:09+0000",
      "updated_time": "2009-04-01T02:20:22+0000",
      "can_upload": false,
      "comments": {
        "data": [
          {
            "id": "513270939441_3444",
            "from": {
              "name": "Misty Bylsma Royal",
              "id": "592607110"
            },
            "message": "I love how the beautiful lady pile is in the same album as the bull pics. Nice.",
            "can_remove": false,
            "created_time": "2009-03-03T22:37:18+0000",
            "like_count": 0,
            "user_likes": false
          },
          {
            "id": "513270939441_3451",
            "from": {
              "name": "Nate Ellender",
              "id": "68004222"
            },
            "message": "Only because they are both things that i only had a few pictures of.",
            "can_remove": false,
            "created_time": "2009-03-04T02:46:11+0000",
            "like_count": 0,
            "user_likes": false
          }
        ],
        "paging": {
          "cursors": {
            "after": "Mg==",
            "before": "MQ=="
          }
        }
      }
    },
    {
      "id": "511605661671",
      "from": {
        "name": "Nate Ellender",
        "id": "68004222"
      },
      "name": "What the...?",
      "description": "What's wrong with the rain? It's flaky and piles up on stuff... Did the plants leak something?\n",
      "location": "Outside",
      "link": "https://www.facebook.com/album.php?fbid=511605661671&id=68004222&aid=2026641",
      "cover_photo": "511605681631",
      "count": 54,
      "type": "normal",
      "created_time": "2008-12-11T11:59:27+0000",
      "updated_time": "2008-12-13T18:06:00+0000",
      "can_upload": false
    },
    {
      "id": "511565886381",
      "from": {
        "name": "Nate Ellender",
        "id": "68004222"
      },
      "name": "The Christmas Tree Farm",
      "description": "An Ellender Tradition",
      "location": "Grant",
      "link": "https://www.facebook.com/album.php?fbid=511565886381&id=68004222&aid=2026590",
      "cover_photo": "511566170811",
      "count": 19,
      "type": "normal",
      "created_time": "2008-12-09T02:38:54+0000",
      "updated_time": "2008-12-09T02:55:21+0000",
      "can_upload": false
    }
  ],
  "paging": {
    "cursors": {
      "after": "NTExNTY1ODg2Mzgx",
      "before": "NjY0NDYyMTU2MDMx"
    }
  }
}

Also, here is where the json data is returned (response). I will need to start parsing the data under response.

            Session.NewPermissionsRequest np = new Session.NewPermissionsRequest(this, "friends_photos");
            Session.getActiveSession().requestNewReadPermissions(np);
            Request rq = new Request(Session.getActiveSession(), userID + "/albums", null, HttpMethod.GET, new Request.Callback() {

                @Override
                public void onCompleted(Response response) {

                }
            });
            rq.executeAsync();

Any example would be helpful. I would like to study the code to get a better understanding on parsing json data.

Damien R. · Accepted Answer · 2013-11-14 11:20:59Z

7

You can get a good example of how to do here: http://www.androidhive.info/2012/01/android-json-parsing-tutorial/

Basically you have to use JSONObject and JSONArray, that you can get from getJSONObject() and getJSONArray(). Once you're on the good spot, use getJSONString() to get the desired value.

In your case it will be something like this:

JSONObject json = new JSONObject(response)
JSONArray jarray = json.getJSONArray("data");
for(int i = 0; i < jarray.length(); i++){
  JSONObject oneAlbum = jarray.getJSONObject(i);
  //get your values
  oneAlbum.getJSONString("name"); // this will return you the album's name.
}

Hope this will help you.

edited Nov 14, 2013 at 11:20

answered Nov 14, 2013 at 11:09

Damien R.

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3 Comments

Garren Fitzenreiter Over a year ago

This uses JSONObject json = jParser.getJSONFromUrl(url) to get the json data. How would I identify the data to be parsed as response in the callback?

Damien R. Over a year ago

You can use json = new JSONObject(response); where response is a String with your json.

Garren Fitzenreiter Over a year ago

Just what I was looking for, a short example. Thanks!

Biraj Zalavadia · Accepted Answer · 2013-11-14 11:17:14Z

Try this

            Session.NewPermissionsRequest np = new Session.NewPermissionsRequest(this, "friends_photos");
            Session.getActiveSession().requestNewReadPermissions(np);
            Request rq = new Request(Session.getActiveSession(), userID + "/albums", null, HttpMethod.GET, new Request.Callback() {

                @Override
                public void onCompleted(Response response) {
                    JSONArray albumArr = response.getGraphObject().getInnerJSONObject().getJSONArray("data");

                    for (int i = 0; i < albumArr.length(); i++) {
                        JSONObject item = albumArr.getJSONObject(i);
                        System.out.println("id : " + item.getString("id"));
                        System.out.println("fromName : " + item.getJSONObject("from").getString("name"));
                        System.out.println("fromid : " + item.getJSONObject("from").getString("id"));
                        System.out.println("link : " + item.getString("link"));
                        System.out.println("cover_photo : " + item.getString("cover_photo"));
                        System.out.println("count : " + item.getString("count"));
                        System.out.println("created_time : " + item.getString("created_time"));
                        System.out.println("updated_time : " + item.getString("updated_time"));
                        System.out.println("can_upload : " + item.getString("can_upload"));

                    }

                }
            });
            rq.executeAsync();

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