CODEWITHSUNDEEP
androidjson
Luke Batley
Luke Batley

Reputation: 2402

Android how to change value of a Key/Value Pair inside JSONObject

Hi i want to change/alter value of a string inside a json object which inside a JSONArray and which is from a file stored in internal storage.

My initial thoughts are to convert the object to a string do a find a replace and convert back to JSONObject search the JSONArray for the JSONObject remove the old one and put the new one in. Then save the array as a .JSON File to internal storage (will this replace the file thats already there or will it create another file with the same name?).

This is my initial thoughts on how to do this but is this the correct way or is there easier more efficient way to do this?

Upvotes: 1

Views: 8932

Answers (3)

Emanuel
Emanuel

Reputation: 8106

Depends on the library you are using for parsing JSON. Some do allow code like jsonOArray.get("jsonObject").put("key", "val");

Some require to obtain the object first then do something like 

JsonObj = jsonArray.get("jsonObject"); jsonObj.putVal("key", "val");

Which library do you use for processing json?

Upvotes: 0

Amardeepvijay
Amardeepvijay

Reputation: 1628

try using this :

nameValuePairs.add(new BasicNameValuePair("cus_id", cus_id));

getting data in this:

 JSONObject json = new JSONObject(responseString);
 JSONArray jArray = json.getJSONArray("customer");
for (int i = 0; i < jArray.length(); i++) {
JSONObject json_data = jArray.getJSONObject(i);
cus_points = json_data.getString("cus_points");

Upvotes: 0

Swayam
Swayam

Reputation: 16354

First, you need to retrieve the required JSON Object form the JSON Array.

You can update the key-value pair of your JSON Object directly by using

mJsonObj.put("<key>", <value>).

Upvotes: 4

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