Unordered data of JSONObject in android

Question

I am using JSONObject for entering data and computing something out if it. Lets suppose i entered data in form :-

JSONObject obj = new JSONObject();
obj.put("uuid", newImageUuid);
obj.put("type", "image");
obj.put("value", base64ImagePath);

For SDK version above 19 i get it in perfect order but for versions below it the order of the json reverses. Value comes first , then type, then uuid.

I have tried this way :-

Map obj=new LinkedHashMap();
                obj.put("uuid", newImageUuid);
                obj.put("type", "image");
                obj.put("value", base64ImagePath);
                StringWriter data = new StringWriter();
                JSONValue.writeJSONString(obj, data);

Data is in ordered manner and in the form in which i want but i cant make use of this data as type of it is StringWriter. But when i convert this data back into JSONObject , result will be in unordered fashion . I have tried many methods like storing in linkedhashmaps and then converting into JSONObjects but of no use. Could anyone please help to it.

hope this might help you http://stackoverflow.com/questions/4515676/keep-the-order-of-the-json-keys-during-json-conversion-to-csv — Sandeep dhiman, Apr 19 '17 at 09:43
try this [http://stackoverflow.com/a/7981662/2116420](http://stackoverflow.com/a/7981662/2116420) — Naz141, Apr 19 '17 at 09:46
@Naz141 :- I have gone through that java file but there is only LinkedHashMap that have been mapped. — ritwik, Apr 19 '17 at 09:50
Can i know why you are depending on the ordered JSONObject data. — Naz141, Apr 19 '17 at 09:51
@Naz141 :- Thanks . Yup i have changed my methodology to solve it. — ritwik, Apr 19 '17 at 10:35

score 0 · Answer 1 · edited Jun 20 '20 at 09:12

0

As JSON official doc says:

An object is an unordered set of name/value pairs.

So JSONObject does't have any specific order.. Neither Serializer nor Parsers doesn't care about order of JSONObject key/values. Now if you really insist in keeping order you can try to convert your Key/Values to Array of Objects composited of Key and Value.

edited Jun 20 '20 at 09:12

Community

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answered Apr 19 '17 at 10:05

Keivan Esbati

3,376
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score 0 · Answer 2 · answered Apr 19 '17 at 10:18

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JSON Object does not have any order.It is a key/value pair.We can save value with the key

We can get the value by using key

If you want ordered data, you can use array,arraylist

answered Apr 19 '17 at 10:18

prakash

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Unordered data of JSONObject in android

2 Answers2