Android - Getting value from the JSON object

Question

I have this json

{
    "results": [
        {
            "user": {
                "gender": "male",
                "name": {
                    "title": "mr",
                    "first": "herbert",
                    "last": "davidson"
                },
                "location": {
                    "street": "9763 fincher rd",
                    "city": "melbourne",
                    "state": "new south wales",
                    "zip": 26278
                },
                "email": "[email protected]",
                "username": "lazyelephant581",
                "password": "abgrtyu",
                "salt": "O8ZbSsUL",
                "md5": "7575bd959be09bc6d510a6a91750ce40",
                "sha1": "0db99de8402e1defbd7935dbd602d99329698d4d",
                "sha256": "c283d262115f90b729bb555db3dbecc8d27eebed513d7f01da799dec9e9d3269",
                "registered": 1275070071,
                "dob": 122409280,
                "phone": "05-5742-3228",
                "cell": "0481-652-548",
                "TFN": "973720989",
                "picture": {
                    "large": "https://randomuser.me/api/portraits/men/24.jpg",
                    "medium": "https://randomuser.me/api/portraits/med/men/24.jpg",
                    "thumbnail": "https://randomuser.me/api/portraits/thumb/men/24.jpg"
                }
            }
        }
    ],
    "nationality": "AU",
    "seed": "0a69317ece7072e000",
    "version": "0.7"
}

and im doing this:(result is the json returned from the service)

try{
    JSONObject jsonResponse = new JSONObject(result);
    JSONObject jo = jsonResponse.getJSONObject("user");
    String nome = jo.getString("username"); 
}catch(Exception e) {
    e.printStackTrace();
}

but gives me this error

org.json.JSONException: No value for username

What im doing wrong? I tryed to do a JSONArray, tryed to get the jsonobject from another jsonobject, but giver an error that cannot convert jsonobject to a jsonarray.

regards!

Rafael

KeLiuyue · Accepted Answer · 2017-10-10 01:11:12Z

6

Try this in your code .

try {
        JSONObject jsonObject = new JSONObject(response);
        JSONArray results = jsonObject.getJSONArray("results");
        for (int i = 0; i < results.length(); i++) {
            JSONObject jo = results.getJSONObject(i);
            JSONObject user = jo.getJSONObject("user");
            String username = user.optString("username");
        }
} catch (JSONException e) {
        e.printStackTrace();
}

Use optString in your code .If your username is null,it will not return error .

answered Oct 10, 2017 at 1:11

KeLiuyue

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1 Comment

KeLiuyue Over a year ago

@RafaelSpessotto Good luck for you!

CodeWriter23 · Accepted Answer · 2017-10-10 01:12:13Z

1

The first-level key in your dictionary is "results", not "user". Also, results is an array, so you have to index into that.

You're trying to access: user->username

You need to access: results[0]->user->username

answered Oct 10, 2017 at 1:12

CodeWriter23

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