Develop Reference

Parsing json (android) [duplicate]

Before I parse json json array, but this json object. Its It drove me to a standstill. How i can parse json like this:
{ "test1": {
"1": {
"action": "0",
"type": "1",
"id": "1",
},
"2": {
"action": "0",
"type": "1",
"id": "2",
}
},
"test2": {
"1": {
"id": "1",
"name": "one"
},
"2": {
"id": "2",
"name": "two"
},
"5": {
"id": "5",
"name": "three"
}
}}

When you don't have a fixed set of keys, that you know upfront, the only way to parse it is to use keys(). It returns an Iterator with the keys contained in the JSONObject. In your case you could have
JSONObject jsonObject = new JSONObject(...);
Iterator<String> iterator = jsonObject.keys();
while(iterator.hasNext()) {
String currentKey = iterator.next();
JSONObject obj = jsonObject.optJSONObject(key);
if (obj != null) {
Iterator<String> iterator2 = obj.keys();
}
}
iterator will return test1 and test2, while iterator2 will return 1 and 2, for test1 and 1 ,2 , 5 for test2

You can create a JSONObject From string as bellow
JSONObject jsonObject = new JSONObject(YOUR_JSON_STRING);
and to parse the jsonObject
JSONObject test1Json = jsonObject.getJSONObject("test1");
JSONObject oneTest1Json = test1Json.getJSONObject("1");
to get String values
String action = oneTest1Json.getString("action");
String type = oneTest1Json.getString("type");
String id = oneTest1Json.getString("id");
Log.d("Json parse","action -"+action+" type -"+type+" id -"+id);
if need them as JSONArray the you can try
public JSONArray getJsonArray (JSONObject jsonObject){
JSONArray nameJsonArray = jsonObject.names();
JSONArray jsonArray = new JSONArray();
for (int i = 0; i < nameJsonArray.length(); i++) {
try {
String key = nameJsonArray.getString(i);
jsonArray.put(jsonObject.getString(key));
} catch (JSONException e) {
e.printStackTrace();
}
}
return jsonArray;
}
in case keys like test1,test2,test3...
JSONObject jsonObject = new JSONObject("{'test1':'Kasun', 'test2':'columbo','test3': '29'}");
JSONArray jsonArray = new JSONArray();
for (int i = 1; i <= jsonObject.names().length(); i++) {
try{
jsonArray.put(jsonObject.getString("test" + i));
}catch (JSONException e){
e.printStackTrace();
}
you can get your JSONArray this way.

Android json parsing object inside another object and array

I want parse all "name" and "desc" from this json object inside another json object. i need another "for"?
{
"main": {
"details": [
{
"owner_name": "owner_name1",
"id": "id1",
"details2": {
"data": [
{
"name": "name1",
"desc": "my desc1",
},
{
"name": "name2",
"desc": "my desc2",
}
],
}
},
{
"owner_name": "owner_name2",
"id": "id2",
"details2": {
"data": [
{
"name": "name3",
"desc": "my desc3",
},
{
"name": "name4",
"desc": "my desc4",
}
]
}
}
]
}
}
and My java Code is:
JSONObject jsono = new JSONObject(data);
JSONObject mainObject = jsono.getJSONObject("main");
JSONArray jsonArray = mainObject.getJSONArray("details");
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject object1 = jsonArray.getJSONObject(i);
JSONObject objectDetails2 = object1.getJSONObject("details2");
JSONArray jsonArrayData = objectDetails2.getJSONArray("data");
for (int j = 0; j < jsonArrayData.length(); j++) {
JSONObject object = jsonArrayData.getJSONObject(j);
Actors actor = new Actors();
actor.setName(object.getString("name"));
actor.setDesc(object.getString("desc"));
actorsList.add(actor);
}
It only show First "data" result inside details2 not showing second details2 inside data..
Now my result is: "name1,dmy desc1,name2,my desc2"
i want all result like : "name1,dmy desc1,name2,my desc2,name3,my desc3,name4,my desc4"

How can i go again inside object and array? i need details from "name"
and "desc"
Get details2 from object JSONObject and then get data JSONArray:
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject object = jsonArray.getJSONObject(i);
// get details2 JSONObject
if(object.has("details2")){
if(!object.isNUll("details2")){
JSONObject objectDetails2 = object.getJSONObject("details2");
// get data JSONArray from objectDetails2
if(objectDetails2.has("data")){
if(!objectDetails2.isNUll("data")){
JSONArray jsonArrayData = objectDetails2.getJSONArray("data");
// iterate to jsonArrayData
for (int j = 0; j < jsonArrayData.length(); j++) {
JSONObject objectInner = jsonArray.getJSONObject(j);
String strName=objectInner.optString("name");
....
}
}else{
// details2 found but null
}
}else{
// details2 not found
}
}else{
// details2 found but null
}
}else{
// details2 not found
}
}

I think you should go into "details2" JSON Object like this :
JSONArray jsonArrayData=object.getJSONObject("details2").getJSONArray("data");

you have to get the object first and then parse it for the diffrent names and info
JSONArray jsonArrayData;
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject object = jsonArray.getJSONObject("details");
jsonArrayData=object.getJSONArray("data");
for(int k=0;k<jsonArrayData.length();k++)
{
Actors actor = new Actors();
actor.setName(object.getString("name"));
actor.setDesc(object.getString("desc"));
actorsList.add(actor);
}
}
i will suggest you use GSON it is quite simple to use,

How to fetch nested json array response like below in android?

how can I fetch this response from URL in android?
1. //main array
[
//array in main array
[
//object in inner array
{
//data to be fetched here
"user_id": "8035",
"sr_no": "MG2459",
"user_type": "2",
"name": "Allen"
}
],
//2nd array in main array
[
{
"user_id": "8035",
"sr_no": "MG2459",
"user_type": "2",
"name": "TestName"
}
]
]

try below code :-
try {
JSONArray ja = new JSONArray(ur string);
for (int i = 0; i < ja.length(); i++)
{
JSONArray ja1 = ja.getJSONArray(i);
for (int j = 0; j < ja1.length(); j++) {
JSONObject jo = ja1.getJSONObject(j);
String user_id = jo.getString("user_id");
String sr_no = jo.getString("sr_no");
String user_type = jo.getString("user_type");
String name = jo.getString("name");
}
}
} catch (Exception e) {
// TODO: handle exception
}

How to parse a JSON Object to get an Array with in Array?

This is my JSON output. I am trying to return the "id": "9040" from instructions but am having trouble
{
"packages": [
{
"instructions": [
{
"id": "9040",
"fn": "test.xml",
"#type": "down",
"fp": ""
}
],
"id": "47968",
"time": 1396036698630,
"priority": 0
}
]
}
Here is my code that returns the "Package" -> "Id"
JSONObject jObject = new JSONObject(json);
JSONArray jsonMainNode = jObject.optJSONArray("packages");
int lengthJsonArr = jsonMainNode.length();
for(int i=0; i < lengthJsonArr; i++)
{
/****** Get Object for each JSON node.***********/
JSONObject jsonChildNode = jsonMainNode.getJSONObject(i);
fileid = Integer.parseInt(jsonChildNode.optString("id").toString());
if (fileid > 0 )
Log.i("JSON parse", "id = "+ fileid);
}
Any help would be much appreciated.
Thank you

You forget about JSONArray instructions
{
"packages": [
{
"instructions": [
{
"id": "9040",
"fn": "test.xml",
"#type": "down",
"fp": ""
}
],
"id": "47968",
"time": 1396036698630,
"priority": 0
}
]
}
To parse
JSONObject jObject = new JSONObject(json);
JSONArray jsonMainNode = jObject.optJSONArray("packages");
JSONObject jb = (JSONObject) jsonMainNode.get(0);
JSONArray instructions = jb.getJSONArray("instructions");
JSONObject jb1 = (JSONObject) instructions.get(0);
String id = jb1.getString("id");

Android Json parsing with complicated arrays

[
{
"countries": [
{
"id": 1,
"country": "India"
},
{
"id": 2,
"country": "Australia"
},
{
"id": 3,
"country": "Srilanka"
},
{
"id": 4,
"country": "Pakistan"
},
{
"id": 5,
"country": "Switzerland"
}
]
}
]
How to parse this Json Response in Android. i am not getting any proper solution.
please help me.

Do it like this...
JSONArray arr = locs.getJSONArray("countries");
for (int i = 0; i < arr.length(); ++i) {
JSONObject rec = arr.getJSONObject(i);
int id = rec.getInt("id");
String con = rec.getString("country");
// ...
}

JSONArray jArr=new JSONArray(response);
for(int i=0;i<jArr.length;i++)
{
id[]=jArr.getJSONObject(i).getInt("id");
con[]=jArr.getJSONObject(i).getString("country");
}

http://developer.android.com/reference/org/json/JSONTokener.html
I've also seen Jackson used in Android apps.

JSONArray countriesobj = new JSONArray();
JSONObject json;
try {
JSONObject jObject = new JSONObject(response);
json = jObject;
countriesobj = json.getJSONArray("countries");
country = new String[countriesobj.length()];
for (int i = 0; i < countriesobj.length(); i++) {
JSONObject e = countriesobj.getJSONObject(i);
country[i] = e.getString("country");
}
} catch (Exception e) {
e.printStackTrace();
}