How to create JSON from array and map in Android?

Question

In iOS if I have arrays and maps nested, I can call NSJSONSerialization.dataWithJSONObject method, and it will render it to a JSON string. For map, or NSDictionary I can use the setValueForKey method, for array, or NSArray I can use add method to populate with data. How is it possible in Android?

Is this approach works in Android? Does appropriate methods exist in Android?

NSJSONSerialization.dataWithJSONObject
setValueForKey
add

score 3 · Answer 1 · answered Sep 09 '16 at 12:54

3

NSJSONSerialization.dataWithJSONObject

https://github.com/google/gson

GSON is a very well supported and used JSON serialisation and deserialisation library. It is very easy to use.

setValueForKey

https://developer.android.com/reference/org/json/JSONObject.html

You can also manually manipulate JSON objects using the classes available in the platform itself.

add

https://developer.android.com/reference/org/json/JSONArray.html

Everything you can do in iOS you can do in Android :) Just maybe slightly differently

answered Sep 09 '16 at 12:54

Ken Wolf

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Why would you suggest he use Gson, and then also point him to org.json.JSONObject? Gson has its own models – Tim Sep 09 '16 at 13:18
I would just use GSON but I am attempting to answer his question fully by addressing all his points. – Ken Wolf Sep 09 '16 at 13:19
I don't see how `JSONObject` is relevant to `setValueForKey`, and how `JSONArray` is relevant to `add` – Tim Sep 09 '16 at 13:22
@TimCastelijns perhaps you can post your own answer? Happy to be schooled :) – Ken Wolf Sep 09 '16 at 13:23
So sorry to trouble you @TimCastelijns – Ken Wolf Sep 09 '16 at 13:26

How to create JSON from array and map in Android?

1 Answers1