CODEWITHSUNDEEP
javaandroidjsongsonadapter
Shameem Ahsan
Shameem Ahsan

Reputation: 110

How to create JSON in Android?

I want to create a JSON string like this:

[{"addon_id":2,"addon_rate":1550},{"addon_id":3, "addon_rate":300}]

Is this possible? How?

My code as it stands:

String formattedString = BookingDetailsCartAdapter.addones_id.toString().replace("[", "").replace("]", "").trim();
String  formattedString1 = BookingDetailsCartAdapter.addones_rate.toString().replace("[", "").replace("]", "").trim();

myjson="[{\"addon_id\":\""+formattedString+"\",\"addon_rate\":\""+formattedString1+"\"}]";

Upvotes: 3

Views: 4271

Answers (2)

Ahmad Aghazadeh
Ahmad Aghazadeh

Reputation: 17131

You can use GSON

Add in Gradle file

compile 'com.google.code.gson:gson:2.8.1'


public class Addon{
    public int addon_id;
    public int addon_rate;
 }

Addon addon = new Addon ();
addon.addon_id=2;
addon.addon_id=1550;
Gson gson = new Gson();
String json = gson.toJson(addon); //

//--- For array

List<Addon > objList = new ArrayList<Addon >();
objList.add(new Addon (0, 1550));
objList.add(new Addon (1, 1552));
objList.add(new Addon (2, 1553));


String json = new Gson().toJson(objList);
System.out.println(json);

http://www.javacreed.com/simple-gson-example/

Upvotes: 4

Emanuel
Emanuel

Reputation: 8106

Your JSON means that it's an array which contains two objects with the keys addon_id and addon_rate. Both accept a number/integer as value. First you need to create a JSONArray which holds several JSONObjects. Then you have to create the JSONObjects which set your keys and values. After this you need to add those objects to your array. Your jsonArray contains the string above as soon as you print/toString() it

JSONArray jsonArray = new JSONArray();  

JSONObject jsonObjOne = new JSONObject();
jsonObjOne.put("addon_id", 2);
jsonObjOne.put("addon_rate", 1550);

JSONObject jsonObjTwo = new JSONObject();
jsonObjTwo.put("addon_id", 3);
jsonObjTwo.put("addon_rate", 300);

jsonArray.put(jsonObjOne);
jsonArray.put(jsonObjTwo);

Upvotes: 4

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