Develop Reference

Facing issue in Json parsing user profile feed

I am working on a project in which I have to parse user feed data
using Json.
Here is the url of json:
http://ourfield.affixwebsolution.com/api/feed?data={%22userId%22:210}
This is my code where I am parsing the json
public static ArrayList<FeedDataClass> parseFeedddata(String res)
{
ArrayList<FeedDataClass>arr =new ArrayList<FeedDataClass>();
FeedDataClass obj=new FeedDataClass();
JSONArray jsonArray ;
JSONObject jsonInnerObj = null;
try {
JSONObject jsonObject =new JSONObject(res);
jsonArray =jsonObject.getJSONArray("data");
Log.d("eaweaer", jsonArray.toString());
for (int i = 0; i < jsonArray.length(); i++) {
jsonInnerObj=jsonArray.getJSONObject(i);
try {
obj.strid = jsonInnerObj.getString("id");
} catch (Exception e) {
// TODO: handle exception
}
try {
JSONObject timeline = new JSONObject(jsonInnerObj.getJSONObject("timeline").toString());
obj.strusername=timeline.getString("username");
Log.d("efe", obj.strusername);
obj.strurl=timeline.getString("avatar_url");
Log.d("aeefwe", obj.strurl);
} catch (Exception e) {
// TODO: handle exception
}
try {
obj.strtext=jsonInnerObj.getString("text");
Log.d("qeeqf", obj.strtext);
} catch (Exception e) {
// TODO: handle exception
}
arr.add(obj);
}
} catch (Exception e) {
// TODO: handle exception
}
return arr;
}
now the problem is, there are total three posts in json, but everytime
I am getting last feed . also it is getting printed 3 times in UI
because loop is running perfectly. dont know what is the mistake I am
doing here.
Help me to sort out this issue, Thank in advance.

You have only one instance of obj which keeps on updating the same memory location. In the final loop cycle it gets updated with 3rd value and shows you. But yes you add it 3 times in the list so you have same object thrice.
Move
FeedDataClass obj=new FeedDataClass();
JSONObject jsonInnerObj = null;
inside for loop.

How to input text from edit text in json array

i'm new to android json and just starting working on it as in place of sqllite databse ,
i want user to input data into edit text and it go and save into the json array like we use to do in the sqllite databse by table
queryValues.put("studentid", studentId);
queryValues.put("roll", roll.getText().toString());
queryValues.put("name", name.getText().toString());
queryValues.put("class", Class.getText().toString());
queryValues.put("marks", marks.getText().toString());
data.updatestudent(queryValues);
so is there any way that we can make user to input data from edit text and then it go save into json Array and also user can do update and delete operations.
or if there is anyother way , guide me into that direction .
Also i can't find any good example of json .

yes you can ,
on button click you have to retrieve all values from editext ,
make a jsonobject like that
JSONObject student1 = new JSONObject();
try {
student1.put("id", "3");
student1.put("name", "NAME OF STUDENT");
student1.put("year", "3rd");
student1.put("curriculum", "Arts");
student1.put("birthday", "5/5/1993");
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

Try it this way:
Before you make a call to the below function, make sure that your edit text does not return null. Use basic validations.
public JSONArray makeJSON() {
JSONArray jArr = new JSONArray();
JSONObject jObj = new JSONObject();
try {
jObj.put("customer_name", edittex1.getText().toString);
jObj.put("serial_number", edittex2.getText().toString);
jObj.put("membership_number", edittex3.getText().toString);
jObj.put("brand_name", edittex4.getText().toString);
jObj.put("model_number", edittex5.getText().toString);
jObj.put("IMEI_number", edittex6.getText().toString);
jObj.put("handset_purchase", edittex7.getText().toString);
jObj.put("counter_name", edittex8.getText().toString);
jArr.put(jObj);
} catch (Exception e) {
System.out.println("Error:" + e);
}
return jArr;
}

[![enter image description here][1]][1]
[1]: https://i.stack.imgur.com/7dR28.png
Facing error as mentioned inside the image:
JSONArray Tracelists = null;
for (int i = 0; i < GetDataAdapter1.size(); i++) {
Tracelists = new JSONArray();
JSONObject Tracelist = new JSONObject();
try {
if (GetDataAdapter1.get(i).getEditTextValue().equalsIgnoreCase("")) {
flag = "NA";
} else {
flag = GetDataAdapter1.get(i).getEditTextValue();
}
Tracelist.put("TRACEEditTextValue", flag);
Tracelist.put("CODE", GetDataAdapter1.get(i).getCODE());
Tracelists.put(Tracelist);
Log.d("tracevalues2-", "onClick: " + Tracelists);
} catch (JSONException e) {
e.printStackTrace();
System.out.println("Error:" + e);
}
// btnnext.setText("," + GetDataAdapter1.get(i).getEditTextValue() + System.getProperty("line.separator"));
}

In Android, Why does my JSONArray have additional brackets?

I'm creating an array that has to be sent to an api. Part of the json has contact info. that must be sent like so:
"Dealer" : {
"email" : "mjones#fake - domain.com" ,
"firstName" : "Martin" ,
"lastName" : "Jones" ,
"phone" : " 5555554321 " ,
"company" : "JonesCo Golf" ,
"street" : "554 Elm Street" ,
"city" : "Springfield" ,
"stateProvince" : "Illinois" ,
"postalCode" : "62701"
}
My json (when using Log.d) shows like this:
"Dealer":
[
{
"email":"email#email.com",
"firstName":"John",
"lastName":"Doe",
"phone":"0987654321",
"company":"test",
"street":"123 Street",
"city":"myCity",
"stateProvince":"Xy",
"postalCode":"12345"
}
]
instead of being Dealer with 9 objects it returns as Dealer with 1 object that contains 9 objects. Of course, this won't parse correctly when I send it to the API.
I'm pulling my content from a shared preference and loading creating the JSONArray like this:
JSONObject dealer = new JSONObject();
try {
dealer.put("email", salesPerson.get("emailAddress"));
dealer.put("firstName", salesPerson.get("firstName"));
dealer.put("lastName", salesPerson.get("lastName"));
dealer.put("phone", salesPerson.get("mobilePhone"));
dealer.put("street", salesPerson.get("mailingAddress1"));
dealer.put("street2", salesPerson.get("mailingAddress2"));
dealer.put("city", salesPerson.get("city"));
dealer.put("stateProvince", salesPerson.get("state"));
dealer.put("postalCode", salesPerson.get("postalCode"));
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Log.d("dealer", dealer.toString());
JSONArray dealerJSON = new JSONArray();
dealerJSON.put(dealer);
try {
emailDataObject.put("Dealer", dealerJSON);
} catch (JSONException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
}
I have a pretty extensive JSONArray to send to the API, and the JSON is being created with no errors. The square brackets are being added everywhere I add the JSONObject to a JSONArray it seems.
how can I prevent the additional square brackets from being added the the json?

To avoid backers do not add your object to an array, but it to the object directly. Here is an example.
JSONObject dealer = new JSONObject();
try {
dealer.put("email", salesPerson.get("emailAddress"));
dealer.put("firstName", salesPerson.get("firstName"));
dealer.put("lastName", salesPerson.get("lastName"));
dealer.put("phone", salesPerson.get("mobilePhone"));
dealer.put("street", salesPerson.get("mailingAddress1"));
dealer.put("street2", salesPerson.get("mailingAddress2"));
dealer.put("city", salesPerson.get("city"));
dealer.put("stateProvince", salesPerson.get("state"));
dealer.put("postalCode", salesPerson.get("postalCode"));
} catch (JSONException e) {
e.printStackTrace();
}
Log.d("dealer", dealer.toString());
try {
emailDataObject.put("Dealer", dealer);
} catch (JSONException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
}

I'm not really into Android, but I can give you some directives, and I can surely tell you that you are conceptually wrong about your JSONs
"Dealer":
{
"email":"email#email.com",
"firstName":"John",
"lastName":"Doe",
"phone":"0987654321",
"company":"test",
"street":"123 Street",
"city":"myCity",
"stateProvince":"Xy",
"postalCode":"12345"
}
This first example is not an array of JSON objects, but instead a single objects with many properties
"Dealer":
[
{
"email":"email#email.com",
"firstName":"John",
"lastName":"Doe",
"phone":"0987654321",
"company":"test",
"street":"123 Street",
"city":"myCity",
"stateProvince":"Xy",
"postalCode":"12345"
}
]
This one instead, is a real JSON array, formed by a single element, which is your previous object.
You have to rethink about the adding of the elements in your JSON object, and what is your real expected behavior
Edit:
I think that this line could be held responsible for your unwanted array creation:
JSONArray dealerJSON = new JSONArray();

You are creating an array with this code:
JSONArray dealerJSON = new JSONArray();
So don't so that.
Just do this:
emailDataObject.put("Dealer", dealer);
You don't need the dealerJSON step, because dealer is the JSONObject you want.

Pass JSON request of array values in android

I need to pass HTTP JSON request as array values as "Id":["13","14","15","17","27","29" ] in android.How could i do that?I tried like this "Id": { "\"13\"".. }
Thanks.
My answer:
Finally i got it.
for (String sstring : new String[] { "1","2" }) {
Carray.put(sstring);
}
Thanks for the support.

JSONObject Root = new JSONObject();String Data1 = "[13,14,15,17,27,29]";
try
{
Root.put("Id", Data1);Log.e("try",Root.toString());
}
catch (JSONException e)
{
e.printStackTrace();
}
Using Above Code You Get This Type Of Output//OutPut :- {"Id":["13","14","13","15","27","29"]}

Type mismatch: cannot convert from Object to JSONObject

I'm relatively new to Android development and am writing my first REST-based app. I've opted to use the Android Asynchronous HTTP Client to make things a bit easier. I'm currently just running through the main "Recommended Usage" section on that link, essentially just creating a basic static HTTP client. I'm following the code given, but changing it around to refer to a different API. Here's the code in question:
public void getFactualResults() throws JSONException {
FactualRestClient.get("q=Coffee,Los Angeles", null, new JsonHttpResponseHandler() {
#Override
public void onSuccess(JSONArray venues) {
// Pull out the first restaurant from the returned search results
JSONObject firstVenue = venues.get(0);
String venueName = firstVenue.getString("name");
// Do something with the response
System.out.println(venueName);
}
});
}
The String venueName = firstVenue.getString("name"); line is currently throwing an error in Eclipse: "Type mismatch: cannot convert from Object to JSONObject". Why is this error occurring? I searched other threads which led me to try using getJSONObject(0) instead of get(0) but that led to further errors and Eclipse suggesting using try/catch. I haven't changed any of the code on the tutorial, save for the variable names and URL. Any thoughts/tips/advice?
Thanks so much.
EDIT:
Here is the onSuccess method, modified to include the try/catch blocks suggested. Eclipse now shows the "local variable may not have been initialized" for firstVenue here: venueName = firstVenue.getString("name"); and for venueName here: System.out.println(venueName); Even if I initialize String venueName; directly after JSONObject firstVenue; I still get the same error. Any help in resolving these would be greatly appreciated!
public void onSuccess(JSONArray venues) {
// Pull out the first restaurant from the returned search results
JSONObject firstVenue;
try {
firstVenue = venues.getJSONObject(0);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
String venueName;
try {
venueName = firstVenue.getString("name");
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// Do something with the response
System.out.println(venueName);
}

You can try to convert object you are getting from querying to String and then use
final JSONObject jsonObject = new JSONObject(stringresult);
I was getting same error earlier, it worked for me.

Yes, you should be using getJSONObject to ensure that the value you obtain is a JSON object. And yes, you should catch the possible JSONException which is thrown if that index in the array doesn't exist, or does not contain an object.
It'll look something like this:
JSONObject firstVenue;
try {
firstVenue = venues.get(0);
} catch (JSONException e) {
// error handling
}

convert obj to json Object:
Object obj = JSONValue.parse(inputParam);
JSONObject jsonObject = (JSONObject) obj;

The solution provided by Shail Adi only worked for me by setting the initial values of firstVenue and venueName to null. Here's my code:
JSONObject firstVenue = null;
try {
firstVenue = (JSONObject)venues.get(0);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
String venueName = null;
try {
venueName = firstVenue.getString("name");
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// Do something with the response
System.out.println(venueName);