Hi am new to android am trying to pass a json response to arraylist using jsonarray request but i am getting this error :
Error:
volley error org.json.JSONException: Value < br of type java.lang.String cannot be converted to JSONArray
Php code:
$userid=$_POST["userid"];
$semester=$_POST["semester"];
$level=$_POST["level"];
$stmt="SELECT coursecode,coursetitle,grade,credithrs,marks FROM tblresults WHERE userid = '$userid' and semester = '$semester' and level = '$level'";
$result=mysqli_query($conn,$stmt);
$responsea=array();
while($respons=mysqli_fetch_array($result)){
$response["coursecode"]=$respons['coursecode'];
$response["coursetitle"]=$respons['coursetitle'];
$response["grade"]=$respons['grade'];
$response["credithrs"]=$respons['credithrs'];
$response["marks"]=$respons['marks'];
$responsea[]=$response;
}
echo json_encode($responsea);
Php response:
[{"coursecode":"csc234","coursetitle":"Information Security","grade":"A","credithrs":"3","marks":"80.00"},{"coursecode":"csc300","coursetitle":"Cryptography","grade":"B","credithrs":"3","marks":"65.00"}]
android code:
public ArrayList<resultInstance> extractresult() {
CheckResultFragment checkResultFragment=new CheckResultFragment();
final String gsem=checkResultFragment.gsem;
final String glev=checkResultFragment.glev;
JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(Request.Method.POST, jsonurl, null,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
int i=0;
while (i<response.length()){
try {
JSONObject jsonObject=response.getJSONObject(i);
resultInstance resultinstance =new resultInstance(
jsonObject.getString("coursecode"),
jsonObject.getString("coursetitle"),
jsonObject.getInt("credit"),
jsonObject.getDouble("marks"),
jsonObject.getString("grade"));
results.add(resultinstance);
i++;
} catch (JSONException e) {
e.printStackTrace();
}
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
error.printStackTrace();
}
}
){
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String,String> params=new HashMap<>();
params.put("userid",guid);
params.put("level",glev);
params.put("semester",gsem);
return params;
}
};
VolleySingleton.getInstance(context).addToRequestQueue(jsonArrayRequest);
return results;
}
Any Help will be greatly appreciated!!
Do debug and set breakpoints, your API call php response is not in a format of JSONArray. Send proper JSONArray format as a response to the API call request.
friends. I have a problem with my volley POST request with parameters. I need fetch the data from my remote MySQL DB and display it in recycler view. For this, I have using volley network request. Without parameters, it loads all the data from my DB. But when I add getParams() method it returns a null array even though corresponding DB entries are available according to the passing parameters. Here is my code..
public void setDonorsList(final VolleyCallBack volleyCallBack) {
if (Utility.isNetworkEnabled) {
final ArrayList<Donor> listOfDonors = new ArrayList<>();
final ProgressDialog progressDialog = new ProgressDialog(FindDonorResult.this);
progressDialog.setMessage("Loading Donors List. Please wait");
progressDialog.show();
StringRequest stringRequest = new StringRequest(Request.Method.POST, Constants.GET_DONORS_URL,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
progressDialog.dismiss();
try {
listOfDonors.clear();
JSONArray jsonArray = new JSONArray(response);
int count = 0;
while (count < 10) {
JSONObject jsonObject = jsonArray.getJSONObject(count);
Donor donor = new Donor(
jsonObject.getString("fName"), jsonObject.getString("sName"), jsonObject.getString("emailid"),
jsonObject.getString("pass"), jsonObject.getString("mobile"), jsonObject.getString("blood"),
jsonObject.getString("age"), jsonObject.getString("gender"), jsonObject.getString("country"),
jsonObject.getString("location"), jsonObject.getString("latitude"), jsonObject.getString("longitude"),
jsonObject.getString("picname"), jsonObject.getString("pic")
);
int roundedDistance = (int) distance(Double.parseDouble(donor.getLatitude()),
Double.parseDouble(latitude), Double.parseDouble(donor.getLongitude()),
Double.parseDouble(longitude));
donor.setDistance(roundedDistance);
listOfDonors.add(donor);
count++;
}
Log.e("listOfDonors", String.valueOf(listOfDonors.size()));
volleyCallBack.onSuccess(listOfDonors);
} catch (JSONException e) {
e.getMessage();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
error.getMessage();
}
}
){
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<>();
params.put("bloodGroup", "A+");
return params;
}
};
NetworkRequestSingleTon.getOurInstance(FindDonorResult.this).addToRequestQue(stringRequest);
} else {
Toast.makeText(FindDonorResult.this, "No active internet connection.", Toast.LENGTH_SHORT).show();
}
}
try using this
JSONObject jObj = new JSONObject(response)
JSONArray area = jObj.getJSONArray("");
maybe this will help
Finally, I figured it. The problem was in setDonorsList() method. I have hard coded the condition while(count < 10). This produces a JSON exception called "index out of range" since my DB doesn't have 10 entries. I changed the value like while(count < jsonArray.length()). Now everything is perfect. Guys thank you so much for your time and concern.
I need to call an api that expects a string array as a POST parameter. So for an example of an API definition:
POST api/names
POST parameter expected is an array of names and some other attributes like below:
{ names: [ "John", "Bill" ], department: "Engineering" }
I am currently using a custom Volley framework as described in the Android documentation but it seems like the parameters from Volley can only be passed as a Map of (String, String as key and value). I already have the array from my Android app, ready to be passed as a post parameter but this Volley expects a String.
I tried to convert my array using Arrays.toString(myStringArray) and passed it like below but it does not work.
String[] namesArray = new String[1];
namesArray[0] = "Bill";
Map<String, String> mapParams = new HashMap<String, String>();
mapParams.put("department", "Computer Science");
mapParams.put("names", Arrays.toString(namesArray));
// Then call the Volley here passing the mapParams.
How can I call the api that expects a String of array when I can only use a String from Volley?
I will give you full code to post JsonObject on volley, through POST method.
JSONObject js = new JSONObject();
try {
js.put("genderType", "MALE");
}
} catch (JSONException e) {
e.printStackTrace();
}
String url = "LINK TO POST/";
// Make request for JSONObject
JsonObjectRequest jsonObjReq = new JsonObjectRequest(
Request.Method.POST, url, js,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
Log.e(TAG, "Response_Code from Volley" + "\n" + response.toString() + " i am king");
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.e(TAG, "Error: " + error.getMessage());
NetworkResponse response = error.networkResponse;
if (error instanceof ServerError && response != null) {
try {
String res = new String(response.data,
HttpHeaderParser.parseCharset(response.headers, "utf-8"));
// Now you can use any deserializer to make sense of data
Log.e(TAG, "onErrorResponse: of uploadUser" + res);
// JSONObject obj = new JSONObject(res);
} catch (UnsupportedEncodingException e1) {
// Couldn't properly decode data to string
e1.printStackTrace();
}
}
}
}) {
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
HashMap<String, String> headers = new HashMap<String, String>();
headers.put("Content-Type", "application/json");
return headers;
}
};
Log.e(TAG, "uploadUser: near volley new request ");
// Adding request to request queue
Volley.newRequestQueue(this).add(jsonObjReq);
}
Put anything you need in the js object with key and its values
Use JsonObjectRequest and simply pass a JSONObject. There's a full example here
public void makePostRequest(final Map<String,String> myMap,String MEDIA_URL,final VolleyResponse callback)
{
VolleySingleton VS;
Log.e("URL",MEDIA_URL);
VS=VS.getInstance();
RequestQueue rq=VS.getRequestQueue();
StringRequest stringRequest = new StringRequest(Request.Method.POST,MEDIA_URL,
new Response.Listener<String>() {
#Override
public void onResponse(String s) {
callback.onSuccess(s);
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError volleyError) {
callback.onError();
}
}){
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String,String> params = new Hashtable<String, String>();
Iterator<Map.Entry<String, String>> iterator = myMap.entrySet().iterator();
while(iterator.hasNext()) {
Map.Entry<String,String> pairs = (Map.Entry<String,String>)iterator.next();
String value = pairs.getValue();
String key = pairs.getKey();
params.put(key,value);
Log.e("Key","Value"+value);
}
return params;
}
};
//Creating a Request Queue
// RequestQueue requestQueue = Volley.newRequestQueue(this);
DefaultRetryPolicy retryPolicy = new DefaultRetryPolicy(0, -1, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT);
stringRequest.setRetryPolicy(retryPolicy);
//Adding request to the queue
rq.add(stringRequest);
}
Where the VolleyResponse is a simple custom interface like this
public interface VolleyResponse {
void onSuccess(String resp);
void onError();
}
I am using Volley to make network calls in my application... For many screens ...(say fragments) I am making various requests like LoginRequest, FetchUsers Request, FetchExams Request..... and handling response and errors in each fragments.
What is the best approach I can use like....
1. Subclass a request
2. Create an interface/callbacks
3. Get results/response or error response in my fragment...
This is how I am doing ....creating many such methods.....
private void syncAllUsers() {
progressDialog.setMessage("Loading Users...");
StringRequest jsonProductCategoryFetchRequest = new StringRequest(Request.Method.POST, Config.SELECT_USERS,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
if(Constants.DEBUG_MODE_ON)
Log.d(Constants.DEBUG_LOG, "RESPONSE for Teachers: "+response);
JSONObject result = new JSONObject(response);
boolean code = result.getBoolean("error");
if (!code) {
//Get the Users Json Array
JSONArray ja = result.getJSONArray("users");
if(ja != null) {
db.deleteAllUsers();
for (int i = 0; i < ja.length(); i++) {
JSONObject jobj = ja.getJSONObject(i);
User user = new User();
user.setId(jobj.getInt(User.KEY_ID));
user.setName(jobj.getString(User.KEY_NAME));
user.setEmail(jobj.getString(User.KEY_EMAIL));
user.setPhone(jobj.getString(User.KEY_PHONE));
user.setGender(jobj.getString(User.KEY_GENDER));
user.setUsername(jobj.getString(User.KEY_USERNAME));
user.setPassword(jobj.getString(User.KEY_PASSWORD));
user.setOrganization_id(jobj.getString(User.KEY_ORGANIZATION_ID));
user.setDob(jobj.getString(User.KEY_DOB));
user.setStatus(jobj.getString(User.KEY_STATUS));
user.setApi_key(jobj.getString(User.KEY_API_KEY));
user.setDate_created(jobj.getString(User.KEY_DATE_CREATED));
user.setRole_id(jobj.getInt(User.KEY_ROLE_ID));
//Delete local Teachers before updating
db.createUser(user);
} // for loop ends
}
}
//syncAllExams();
progressDialog.dismiss();
getActivity().finish();
startActivity(new Intent(getActivity(), MainActivity.class));
} catch (Exception e) {
Log.d(Constants.DEBUG_LOG, "Exception Syncing Users: " , e);
Toast.makeText(getActivity(),"Something went wrong while fetching users", Toast.LENGTH_SHORT).show();
progressDialog.dismiss();
getActivity().finish();
startActivity(new Intent(getActivity(), MainActivity.class));
}
}
} , new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
if(Constants.DEBUG_MODE_ON)
Log.d(Constants.DEBUG_LOG, "Error Response for Users : "+error.getCause()+""+error.toString());
Toast.makeText(getActivity(), getString(R.string.no_internet), Toast.LENGTH_SHORT).show();
progressDialog.dismiss();
getActivity().finish();
startActivity(new Intent(getActivity(), MainActivity.class));
}
}) {
#Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<String, String>();
params.put(User.KEY_ORGANIZATION_ID, preferencesManager.getOrganizationID());
params.put(User.KEY_API_KEY, preferencesManager.getApiKey());
Log.d("Registration", "PARAMS : " + params.entrySet());
return params;
}
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
HashMap<String, String> params = new HashMap<String, String>();
// params.put("Content-Type", "application/json; charset=utf-8");
params.put("Content-Type", "application/x-www-form-urlencoded");
String auth = preferencesManager.getApiKey();
params.put("Authorization", auth);
return params;
}
};
MyApplication.getInstance().addToReqQueue(jsonProductCategoryFetchRequest);
}
I think there would be a clean way to perform this. Any suggestions.
I have been using this class for creating requests, it transforms your json into your object automaticaly with gson. Find example here:
https://gist.github.com/ficusk/5474673
Create Request Manager.. Which is only dealing with Requesting your web services. That Manager should also handle any network error and other errors which are not application layer.
Use this request manager from your Model classes where your business logic is. Send Request Parameter as JSON.. Also you can send your different listeners from to Request Manager So that when web service response comes it directly comes to you Model class and you can parse JSON response according to your needs.
This way parsing logic stays with Model class and Requesting logic stays with Request manager.. So in future if you change web service address you need to check only one place.. And if you change request and response parameter for webservice you dont need to change request manager and only Model class...
There might be some other ways..
public final class RequestManager {
private static final String ROOT_HOST = //Your Webservice Host Root.
private RequestQueue queue;
public RequestManager(final Context context) {
queue = Volley.newRequestQueue(context);
}
//Internal Calling method .. Not exposed..
private void doRequest(final int method, final String url, final JSONObject jsonParam, final Response.Listener<JSONObject> listener,
final Response.ErrorListener errlsn) {
JSONObjectRequest jsonObjectRequest = new SONObjectRequest(method, url, jsonParam, listener, errlsn);
queue.add(jsonObjectRequest);
}
public void doLogin(final User user, final Response.Listener<JSONObject> listener, final Response.ErrorListener errlsn)
throws Exception {
// Make login request JSON here
if (user == null || listener == null || errlsn == null) {
//throw Exception
}
final JSONObject jsonObj = new JSONObject();
//Convert user object to JSON Object
doRequest(Request.Method.GET, LOGIN_URL, jsonObj, listener, errlsn);
}
}
I am trying to send POST parameters in a Volley JsonObjectRequest. Initially, it was working for me by following what the official code says to do of passing a JSONObject containing the parameters in the constructor of the JsonObjectRequest. Then all of a sudden it stopped working and I haven't made any changes to the code that was previously working. The server no longer recognizes that any POST parameters are being sent. Here is my code:
RequestQueue queue = Volley.newRequestQueue(this);
String url ="http://myserveraddress";
// POST parameters
Map<String, String> params = new HashMap<String, String>();
params.put("tag", "test");
JSONObject jsonObj = new JSONObject(params);
// Request a json response from the provided URL
JsonObjectRequest jsonObjRequest = new JsonObjectRequest
(Request.Method.POST, url, jsonObj, new Response.Listener<JSONObject>()
{
#Override
public void onResponse(JSONObject response)
{
Toast.makeText(getApplicationContext(), response.toString(), Toast.LENGTH_SHORT).show();
}
},
new Response.ErrorListener()
{
#Override
public void onErrorResponse(VolleyError error)
{
Toast.makeText(getApplicationContext(), error.toString(), Toast.LENGTH_SHORT).show();
}
});
// Add the request to the RequestQueue.
queue.add(jsonObjRequest);
Here is the simple tester PHP code on the server:
$response = array("tag" => $_POST["tag"]);
echo json_encode($response);
The response I get is {"tag":null}
Yesterday, it worked fine and was responding with {"tag":"test"}
I haven't changed a single thing, but today it is no longer working.
In the Volley source code constructor javadoc it says that you can pass a JSONObject in the constructor to send post parameters at "#param jsonRequest":
https://android.googlesource.com/platform/frameworks/volley/+/master/src/main/java/com/android/volley/toolbox/JsonObjectRequest.java
/**
* Creates a new request.
* #param method the HTTP method to use
* #param url URL to fetch the JSON from
* #param jsonRequest A {#link JSONObject} to post with the request. Null is allowed and
* indicates no parameters will be posted along with request.
I have read other posts with similar questions, but the solutions haven't worked for me:
Volley JsonObjectRequest Post request not working
Volley Post JsonObjectRequest ignoring parameters while using getHeader and getParams
Volley not sending a post request with parameters.
I've tried setting the JSONObject in the JsonObjectRequest constructor to null, then overriding and setting the parameters in the "getParams()", "getBody()", and "getPostParams()" methods, but none of those overrides has worked for me. Another suggestion was to use an additional helper class that basically creates a custom request, but that fix is a bit too complex for my needs. If it comes down to it I will do anything to make it work, but I am hoping that there is a simple reason as to why my code was working, and then just stopped, and also a simple solution.
You just have to make a JSONObject from your HashMap of parameters:
String url = "https://www.youraddress.com/";
Map<String, String> params = new HashMap();
params.put("first_param", 1);
params.put("second_param", 2);
JSONObject parameters = new JSONObject(params);
JsonObjectRequest jsonRequest = new JsonObjectRequest(Request.Method.POST, url, parameters, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
//TODO: handle success
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
error.printStackTrace();
//TODO: handle failure
}
});
Volley.newRequestQueue(this).add(jsonRequest);
I ended up using Volley's StringRequest instead, because I was using too much valuable time trying to make JsonObjectRequest work.
RequestQueue queue = Volley.newRequestQueue(this);
String url ="http://myserveraddress";
StringRequest strRequest = new StringRequest(Request.Method.POST, url,
new Response.Listener<String>()
{
#Override
public void onResponse(String response)
{
Toast.makeText(getApplicationContext(), response, Toast.LENGTH_SHORT).show();
}
},
new Response.ErrorListener()
{
#Override
public void onErrorResponse(VolleyError error)
{
Toast.makeText(getApplicationContext(), error.toString(), Toast.LENGTH_SHORT).show();
}
})
{
#Override
protected Map<String, String> getParams()
{
Map<String, String> params = new HashMap<String, String>();
params.put("tag", "test");
return params;
}
};
queue.add(strRequest);
This worked for me. Its just as simple as JsonObjectRequest, but uses a String instead.
I had a similar problem, but I found out that the problem was not on the client side, but in the server side. When you send a JsonObject, you need to get the POST object like this (in the server side):
In PHP:
$json = json_decode(file_get_contents('php://input'), true);
You can use StringRequest to do the same things you can wtih JsonObjectRequest, while still beeing able to easily send POST parameters. The only thing you have to do is to create a JsonObject out of the request String you get, and from there you can continue as if it were JsonObjectRequest.
StringRequest stringRequest = new StringRequest(Request.Method.POST, url, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
//Creating JsonObject from response String
JSONObject jsonObject= new JSONObject(response.toString());
//extracting json array from response string
JSONArray jsonArray = jsonObject.getJSONArray("arrname");
JSONObject jsonRow = jsonArray.getJSONObject(0);
//get value from jsonRow
String resultStr = jsonRow.getString("result");
} catch (JSONException e) {
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
}){
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String,String> parameters = new HashMap<String,String>();
parameters.put("parameter",param);
return parameters;
}
};
requestQueue.add(stringRequest);
Use CustomJsonObjectRequest helper class mentioned here.
and implement like this -
CustomJsonObjectRequest request = new CustomJsonObjectRequest(Method.POST, URL, null, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
Toast.makeText(getActivity(), response.toString(), Toast.LENGTH_SHORT).show();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getActivity(), "Error.", Toast.LENGTH_SHORT).show();
}
}) {
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<String, String>();
params.put("id", id);
params.put("password", password);
return params;
}
};
VolleySingleton.getInstance().addToRequestQueue(request);
Using the JSONObject object to send parameters means the parameters will be in JSON format in the HTTP POST request body :
Map<String, String> params = new HashMap<String, String>();
params.put("tag", "test");
params.put("tag2", "test2");
JSONObject jsonObj = new JSONObject(params);
Will create this JSON object and insert it into the body of the HTTP POST request:
{"tag":"test","tag2":"test2"}
Then the server must decode the JSON to understand these POST parameters.
But normally HTTP POST paramaters are write in the body like:
tag=test&tag2=test2
But NOW here the question is why Volley is set in this manner?
A server reading a HTTP POST method should by standard always try to read parameters also in JSON (other than in plain text) and so a server that does not accomplish is a bad server?
Or instead a HTTP POST body with parameters in JSON is not what normally a server want?
Might help someone and save you some time thinking.
I had a similar issue, the server code was looking for the Content-Type header. It was doing it this way:
if($request->headers->content_type == 'application/json' ){ //Parse JSON... }
But Volley was sending the header like this:
'application/json; charset?utf-8'
Changing the server code to this did the trick:
if( strpos($request->headers->content_type, 'application/json') ){ //Parse JSON...
I had similar problem. But I found out that the problem was not on the server side, but the problem is about cache. You have to clear your RequestQueue Cache.
RequestQueue requestQueue1 = Volley.newRequestQueue(context);
requestQueue1.getCache().clear();
You can do it this way:
CustomRequest request = new CustomRequest(Request.Method.POST, url, null, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
// Toast.makeText(SignActivity.this, response.toString(), Toast.LENGTH_SHORT).show();
Log.d("response",""+response.toString());
String status = response.optString("StatusMessage");
String actionstatus = response.optString("ActionStatus");
Toast.makeText(SignActivity.this, ""+status, Toast.LENGTH_SHORT).show();
if(actionstatus.equals("Success"))
{
Intent i = new Intent(SignActivity.this, LoginActivity.class);
startActivity(i);
finish();
}
dismissProgress();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(SignActivity.this, "Error."+error.toString(), Toast.LENGTH_SHORT).show();
Log.d("response",""+error.toString());
dismissProgress();
}
}) {
#Override
public String getBodyContentType() {
return "application/x-www-form-urlencoded; charset=UTF-8";
}
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<String, String>();
params.put("Email", emailval);
params.put("PassWord", passwordval);
params.put("FirstName", firstnameval);
params.put("LastName", lastnameval);
params.put("Phone", phoneval);
return params;
}
};
AppSingleton.getInstance(SignActivity.this.getApplicationContext()).addToRequestQueue(request, REQUEST_TAG);
as per CustomRequest below link
Volley JsonObjectRequest Post request not working
It does work.
I parsed json object response using this:-
works like a charm.
String tag_string_req = "string_req";
Map<String, String> params = new HashMap<String, String>();
params.put("user_id","CMD0005");
JSONObject jsonObj = new JSONObject(params);
String url="" //your link
JsonObjectRequest jsonObjReq = new JsonObjectRequest(Request.Method.POST,
url, jsonObj, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
Log.d("responce", response.toString());
try {
// Parsing json object response
// response will be a json object
String userbalance = response.getString("userbalance");
Log.d("userbalance",userbalance);
String walletbalance = response.getString("walletbalance");
Log.d("walletbalance",walletbalance);
} catch (JSONException e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(),
"Error: " + e.getMessage(),
Toast.LENGTH_LONG).show();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getApplicationContext(),
error.getMessage(), Toast.LENGTH_SHORT).show();
}
});
AppControllerVolley.getInstance().addToRequestQueue(jsonObjReq, tag_string_req);
It worked for me can try this for calling with Volley for Json type request and response .
public void callLogin(String sMethodToCall, String sUserId, String sPass) {
RequestQueue requestQueue = Volley.newRequestQueue(getApplicationContext());
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(
Request.Method.POST, ConstantValues.ROOT_URL_LOCAL + sMethodToCall.toString().trim(), addJsonParams(sUserId, sPass),
// JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.POST, url, object,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
Log.d("onResponse", response.toString());
Toast.makeText(VolleyMethods.this, response.toString(), Toast.LENGTH_LONG).show(); // Test
parseResponse(response);
// msgResponse.setText(response.toString());
// hideProgressDialog();
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d("onErrorResponse", "Error: " + error.getMessage());
Toast.makeText(VolleyMethods.this, error.toString(), Toast.LENGTH_LONG).show();
// hideProgressDialog();
}
}) {
/**
* Passing some request headers
*/
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
HashMap<String, String> headers = new HashMap<String, String>();
headers.put("Content-Type", "application/json; charset=utf-8");
return headers;
}
};
requestQueue.add(jsonObjectRequest);
}
public JSONObject addJsonParams(String sUserId, String sPass) {
JSONObject jsonobject = new JSONObject();
try {
// {"id":,"login":"secretary","password":"password"}
///***//
Log.d("addJsonParams", "addJsonParams");
// JSONObject jsonobject = new JSONObject();
// JSONObject jsonobject_one = new JSONObject();
//
// jsonobject_one.put("type", "event_and_offer");
// jsonobject_one.put("devicetype", "I");
//
// JSONObject jsonobject_TWO = new JSONObject();
// jsonobject_TWO.put("value", "event");
// JSONObject jsonobject = new JSONObject();
//
// jsonobject.put("requestinfo", jsonobject_TWO);
// jsonobject.put("request", jsonobject_one);
jsonobject.put("id", "");
jsonobject.put("login", sUserId); // sUserId
jsonobject.put("password", sPass); // sPass
// js.put("data", jsonobject.toString());
} catch (JSONException e) {
e.printStackTrace();
}
return jsonobject;
}
public void parseResponse(JSONObject response) {
Boolean bIsSuccess = false; // Write according to your logic this is demo.
try {
JSONObject jObject = new JSONObject(String.valueOf(response));
bIsSuccess = jObject.getBoolean("success");
} catch (JSONException e) {
e.printStackTrace();
Toast.makeText(VolleyMethods.this, "" + e.toString(), Toast.LENGTH_LONG).show(); // Test
}
}
Hope am not too late to the party:
The issue is from the server side. If you are using PHP add the following lines at the top of your php api file (after includes)
$inputJSON = file_get_contents('php://input');
if(get_magic_quotes_gpc())
{
$param = stripslashes($inputJSON);
}
else
{
$param = $inputJSON;
}
$input = json_decode($param, TRUE);
Then to retrieve your values
$tag= $input['tag'];
Use GET in place of POST for using JsonObjectRequest
VolleySingleton.getInstance()
.add(new StringRequest(Request.Method.POST, urlToTest, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
// do stuff...
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
// exception
}
}) {
#Override
public String getBodyContentType() {
return "application/x-www-form-urlencoded; charset=UTF-8";
}
#Override
protected Map<String, String> getParams() {
return ServerApi.getRequiredParamsRequest(context);
}
}
);
...Initially, it was working for me
....Then all of a sudden it stopped working and I haven't made any changes to
the code
if you haven't made any changes to a previously working code then I suggest checking other parameters such as URL , as the IP address may change if you are using your own Computer as a server!