How to parse data from JSON array coming from FB graph API?

Question

I am new to JSON. I'm working with the json processing library. Given a JSON such as:

{
   "data": [
      {
         "name": "John Doe",
         "id": "2980311"
      },
      {
         "name": "Jane Doe",
         "id": "10221412"
      },
      {
         "name": "George Doe",
         "id": "111623489"
      }
    ],
    "paging": {
      "blah" : "blah"
    }
}

How can I get the id values. I've started by trying to get an array to work with:

String URL = "https://graph.facebook.com/username/friends?access_token=";
String token = "";
String[] response = loadStrings(URL+token);

if(response != null) {
  JSONObject result = new JSONObject(response);
  JSONArray data = result.getJSONArray("data");
}

And this prints out:

JSONObject["data"] not found.
JSONObject["data"] is not a JSONArray.

But it's definitely getting the data. If I print out response I see the data.

What am I missing?

T.J. Crowder · Accepted Answer · 2013-02-22 01:12:17Z

2

I'm not seeing a JSONObject constructor in that library that accepts String[] (the type of your response variable). There's JSONObject(String) and there's JSONObject(Object). If you pass a String[] into JSONObject, it'll match the latter, which doesn't (immediately) look to me like it'll do what you want.

I suspect you want to get a single String from the URL, which you'd then pass into JSONObject(String), at which point things should start working correctly.

answered Feb 22, 2013 at 1:12

T.J. Crowder

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1 Comment

T.J. Crowder Over a year ago

@mix: Excellent! It was a bit of a shot in the dark as I've not used that library, glad that helped!

wilman garcia · Accepted Answer · 2015-01-28 03:38:54Z

0

try with this..

GraphObject responseGraphObject = response.getGraphObject();
JSONObject json = responseGraphObject.getInnerJSONObject();

                      JSONObject sys  = json.getJSONObject("data");
          Log.e("urlimage json",  sys.getString("url"));

edited Jan 28, 2015 at 3:38

answered Jan 2, 2015 at 19:36

wilman garcia

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