Android JSONArray Exception

Question

I have a JSON like this :

{

- 0: {
    "title": "Title1",
    "content": "test"
},
 - 1: {
    "title": "Title2",
    "content": "test2"
}
}

So i want to recover it in my application, and i have an exception with this line :

JSONArray jArray = new JSONArray(result);

I checked that "result" contains my JSON, and it's the case.

When i see the error in the logcat i just see values of my JSON.... i have something like that :

org.json.JSONException and values of my JSON

Could someone help me ?

can you add complete logcat exception,if possible.

Harshal Benake
– Harshal Benake

2014-03-18 10:56:55 +00:00
Commented Mar 18, 2014 at 10:56 — Harshal Benake
– Harshal Benake, Commented Mar 18, 2014 at 10:56

Jitesh Upadhyay · Accepted Answer · 2014-03-18 10:59:38Z

2

{ means Object by means if json data starts with a { than it is an object

[ means array by means if json data starts with a [ than it is an array

use

JSONObject jObject = new JSONObject(result);

instead of

JSONArray jArray = new JSONArray(result);

for a simple tutorial and to learn visit

http://www.androidhive.info/2012/01/android-json-parsing-tutorial/

answered Mar 18, 2014 at 10:59

Jitesh Upadhyay

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2 Comments

deveLost Over a year ago

Ok, i understood but i have a problem because me, i haven't a json object with name, i have just number, not "contacts" like your example. So how can i do a while on jObject ?

Jitesh Upadhyay Over a year ago

Please visit the documentation, you can iterate over the data and findout. you can obtain an object based on a particular key.

Blackbelt · Accepted Answer · 2014-03-18 10:54:55Z

1

The JSON you posted is not a JSONArray but a JSONObject so you have to change from

JSONArray jArray = new JSONArray(result);

to

JSONObject jObject = new JSONObject(result);

answered Mar 18, 2014 at 10:54

Blackbelt

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2 Comments

deveLost Over a year ago

Oh, ok. But now, how can i do to do a "while" on jObject ?

Blackbelt Over a year ago

you still have the possibility to get an iterator with all the keys, do a while on that iterator and retrieve every object through optObject(). I'll strongly suggest you to give a look to the documentation

AndyN · Accepted Answer · 2014-03-18 10:55:32Z

0

You can get an easy to understand example for encoding and parsing json: Android JSON Tutorial: Create and Parse JSON data

and

JSON in Android - Tutorial

answered Mar 18, 2014 at 10:55

AndyN

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