How to parse the Json response in android?

Question

i m getting this response in a result of GET request to server

{\"LL\": { \"control\": \"dev/sys/getkey\", \"value\": \"4545453030304138303046392035343733373         


        

Answer 1

Simple and Efficient solution : Use Googlle's Gson library

• Put this in build.gradle file : implementation 'com.google.code.gson:gson:2.6.2'
• Now convert the JSON String to a convenient datastrucutre like HashMap in 2 lines like this.

---

Type type = new TypeToken>(){}.getType();
Map myMap = gson.fromJson(JsonString , type);

---

or you can use this below class :

To convert your JSON string to hashmap use this :

HashMap hashMap = new HashMap<>(Utility.jsonToMap(response)) ;

Use this class :) (handles even lists , nested lists and json)

public class Utility {

    public static Map jsonToMap(Object json) throws JSONException {

        if(json instanceof JSONObject)
            return _jsonToMap_((JSONObject)json) ;

        else if (json instanceof String)
        {
            JSONObject jsonObject = new JSONObject((String)json) ;
            return _jsonToMap_(jsonObject) ;
        }
        return null ;
    }


   private static Map _jsonToMap_(JSONObject json) throws JSONException {
        Map retMap = new HashMap();

        if(json != JSONObject.NULL) {
            retMap = toMap(json);
        }
        return retMap;
    }


    private static Map toMap(JSONObject object) throws JSONException {
        Map map = new HashMap();

        Iterator keysItr = object.keys();
        while(keysItr.hasNext()) {
            String key = keysItr.next();
            Object value = object.get(key);

            if(value instanceof JSONArray) {
                value = toList((JSONArray) value);
            }

            else if(value instanceof JSONObject) {
                value = toMap((JSONObject) value);
            }
            map.put(key, value);
        }
        return map;
    }


    public static List