Android create JSONObject from string

Question

I'm triyng to convert json in string format to a JSONObject.

My json (received from my server) is like

[{ "key": "value", "key2": "value2"}, { "key": "value2", "key2": "value3"}]

And i have tried

 JSONObject obj = new JSONObject(json);

But obj is always null and my json is in a valid format (tested on http://jsonlint.com/)

Do I have to do smthing on my String first ?

Thanks,

if you look at this example tutorialspoint.com/android/android_json_parser.htm you could still turn the string to a jsonObject, however you will need to surround the data with { } — Tasos
– Tasos, Commented Jan 19, 2016 at 14:12

Rohit5k2 · Accepted Answer · 2016-01-19 14:02:09Z

3

You are trying to parse a JSONArray to JSONOject.

Do this

JSONArray obj = new JSONArray(json);

A thumb rule: If JSON string starts with [, its an array and if it starts with { then its an object.

This is how you should parse it.

JSONArray obj = new JSONArray(json);
for(int i = 0; i < obj.length(); i++)
{
    JSONObject temp = obj.get(i);
    Log.d("Json parsing", "key: " + temp.optString("key"));
    Log.d("Json parsing", "key2: " + temp.optString("key2"));
}

Output will be

value
value2
value2
value3

edited Jan 19, 2016 at 14:02

answered Jan 19, 2016 at 13:56

Rohit5k2

18.1k8 gold badges48 silver badges58 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Android create JSONObject from string

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related