Android volley NoConnection Error : java.io.IOException, java.io.EOFException

Android volley NoConnection Error : java.io.IOException, java.io.EOFException - android

StringRequest stringRequest = new StringRequest(Request.Method.POST, UrlEndPoints.interAd,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.e("Response::", response);
try {
int success;
JSONObject jsonObject = new JSONObject(response);
Log.e("jObj_AppURL", String.valueOf(jsonObject));
success = jsonObject.getInt(SUCCESS);
if (success == 1) {
JSONArray data = jsonObject.getJSONArray(RESPONSE);
for (int i = 0; i < data.length(); i++) {
JSONObject c = data.getJSONObject(i);
appImg = c.getString(APPIMG);
appName = c.getString(APPNAME);
appPackages = c.getString(PKG);
InterAdModel interAdModel = new InterAdModel();
interAdModel.setAppImg(appImg);
interAdModel.setAppName(appName);
interAdModel.setAppPackages(appPackages);
interAdModelArrayList.add(interAdModel);
}
}
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e("erorr::", error.toString());
Toast.makeText(SplashActivity.this, error.toString(), Toast.LENGTH_LONG).show();
}
}) {
#Override
protected Map<String, String> getParams() {
//for check service is correctly functioning use package name "com.whatsweb.whatscan.whatsappweb.whatscanforwhatweb"
Map<String, String> params = new HashMap<>();
params.put("task", "get_interad_apps");
params.put("package", getPackageName());
return params;
}
};
int socketTimeout = 30000;
RetryPolicy policy = new DefaultRetryPolicy(socketTimeout, DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT);
stringRequest.setRetryPolicy(policy);
RequestQueue requestQueue = Volley.newRequestQueue(SplashActivity.this);
requestQueue.add(stringRequest);
I am facing error while parsing the JSON object. I am adding two fields,ie. the task and the package name of the application using Map, but it is always throwing the Exceptions. Very rarely I get the actual data. Sometimes It throws only EOFException while sometimes NoConnection error.

Read NoConnectionError.
Error indicating that no connection could be established when
performing a Volley request.
#SuppressWarnings("serial")
public class NoConnectionError extends NetworkError {
public NoConnectionError() {
super();
}
public NoConnectionError(Throwable reason) {
super(reason);
}
}
You should add
public void onErrorResponse(VolleyError error)
{
if (error instanceof NoConnectionError)
{
// Your Code
}
}
You can check
Handle Volley Error.

Related

sending jsonobject to server

i am trying to send the Jsonobject request to the server and i am getting a reply of volley timeouterror
I read something on volley RetryPolicy, that i should increase the time limit of my request and till getting the same error. please guys help to look through my code, and assist me with the right request.
Thanks in advance
private void getpay() {
prgDialog.show();
final String amount = Fund_amount;
final String number = Card.getText().toString().trim();
final String year = Year.getText().toString().trim();
final String month = Month.getText().toString().trim();
final String cvv = CVV.getText().toString().trim();
final String pin = Pin.getText().toString().trim();
aaaaaa
JsonObjectRequest obreq = new JsonObjectRequest(Request.Method.POST, "https://api.myflex.ng/wallet/fund",
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
try {
prgDialog.cancel();
String data = response.getString("status");
JSONObject obj = response.getJSONObject("data");
JSONObject transfer = obj.getJSONObject("transfer");
Payment_massage = transfer.getString("flutterChargeResponseMessage");
Payment_ref = transfer.getString("flutterChargeReference");
if (data.equalsIgnoreCase("error")) {
prgDialog.cancel();
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity(), R.style.AppCompatAlertDialogStyle);
builder.setTitle("myFlex");
builder.setMessage("Connection Error. Please check Your Network Connection");
builder.setCancelable(false);
builder.setPositiveButton("OK", null);
builder.show();
} else {
prgDialog.cancel();
FragmentTransaction trans = getFragmentManager().beginTransaction();
trans.replace(R.id.change_transfer, new card_token());
trans.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
trans.addToBackStack(null);
trans.commit();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getActivity(), error.toString(),Toast.LENGTH_LONG).show();
prgDialog.cancel();
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity(), R.style.AppCompatAlertDialogStyle);
builder.setTitle("myFlex");
builder.setCancelable(false);
builder.setMessage("Connection Error. Please check Your Internet Connection ");
builder.setPositiveButton("OK", null);
builder.show();
}
}
) {
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> headers = new HashMap<String, String>();
headers.put("Authorization", User_Token);
headers.put("Content-Type", "application/json");
return headers;
}
#Override
public String getBodyContentType() {
return "application/json";
}
#Override
public byte[] getBody() {
JSONObject jsonObject = new JSONObject();
try {
jsonObject.put("amount", amount);
jsonObject.put("card", come());
} catch (JSONException e) {
e.printStackTrace();
}
Log.i("Volley", "Error" + String.valueOf(jsonObject));
return jsonObject.toString().getBytes();
}
private JSONObject come() throws JSONException {
JSONObject params = new JSONObject();
try {
params.put("number", number);
params.put("expiry_month", month);
params.put("expiry_year", year);
params.put("cvv", cvv);
params.put("pin", pin);
Log.i("Volley", "Error" + String.valueOf(params));
} catch (JSONException e) {
Log.e("Volley", "Error" + params);
}
return params;
}
};
RequestQueue requestQueue = Volley.newRequestQueue(getActivity());
obreq.setRetryPolicy(new DefaultRetryPolicy(100 * 1000, 0,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
requestQueue.add(obreq);
}

Try to configure retry policy. Give a large timeout and try
String tag_json_obj = "json_obj_req";
obreq.setRetryPolicy(new DefaultRetryPolicy(30000, DefaultRetryPolicy.DEFAULT_MAX_RETRIES, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
requestQueue.addToRequestQueue(obreq, tag_json_obj);

You can try
add volley library to build.gradle
compile 'com.mcxiaoke.volley:library:1.0.19'
You can call like bellow using volley
private void doLoginAction() {
String url_login = "http://10.0.2.2/test_sstem/public/login";
StringRequest stringRequest = new StringRequest(Request.Method.POST, url_login,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
//pDialog.dismiss();
try {
JSONObject jsonObject = new JSONObject(response);
JSONArray loginNodes = jsonObject.getJSONArray("ParentNode");
for (int i = 0; i < loginNodes.length(); i++) {
JSONObject jo = loginNodes.getJSONObject(i);
String key1 = jo.getString("key1");
String key2 = jo.getString("key2");
}
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
try {
if (error instanceof TimeoutError ) {
//Time out error
}else if(error instanceof NoConnectionError){
//net work error
} else if (error instanceof AuthFailureError) {
//error
} else if (error instanceof ServerError) {
//Erroor
} else if (error instanceof NetworkError) {
//Error
} else if (error instanceof ParseError) {
//Error
}else{
//Error
}
//End
} catch (Exception e) {
}
}
}) {
#Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<>();
params.put("uname", "era#gmail.com");
params.put("pass", "123456");
return params;
}
};
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
}

Timeout in Volley is represented in milliseconds. Default time out is 25000 milliseconds or 25 seconds.
int timeOut = 120; // 2 min
int timeOutInMillis = timeOut * 1000;
obreq .setRetryPolicy(new DefaultRetryPolicy(timeOutInMillis,
DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
requestQueue.add(obreq);
For more details:Transmitting Network Data Using Volley

google/volley App crashing when URL do not exist

So I've implemented google/volley in my apps. When i code the apps i accidentally mistyped the url address and the app just crash suddenly. So how can i avoid this kind of problem. Below are the code i've used.
String url_login = "http://10.0.2.2/test_sstem/public/login";
//Send Post data and retrieve server respond
StringRequest stringRequest = new StringRequest(Request.Method.POST, url_login,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Toast.makeText(LoginActivity.this,"On Response "+response,Toast.LENGTH_LONG).show();
ValidateLogin(response);
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
NetworkResponse networkResponse = error.networkResponse;
if (networkResponse != null && networkResponse.data != null) {
String jsonError = new String(networkResponse.data);
String message_response=null;
try {
JSONObject object = new JSONObject(jsonError);
message_response= object.getString("error");
} catch (JSONException e) {
e.printStackTrace();
}
Toast.makeText(LoginActivity.this, "On Error " + message_response.toString(), Toast.LENGTH_LONG).show();
showProgress(false);
}
}
})
I know that it can be fixed by correcting the URL, but what if the URL are not alive and working how do we work around this problem.

I have used bellow method for volley which is work for me.. i have used wrong address but my app does not stop. Use bellow full method..
private void doLoginAction() {
pDialog.show();
String url_login = "http://10.0.2.2/test_sstem/public/login";
StringRequest stringRequest = new StringRequest(Request.Method.POST, url_login,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
//pDialog.dismiss();
try {
JSONObject jsonObject = new JSONObject(response);
JSONArray loginNodes = jsonObject.getJSONArray("ParentNode");
for (int i = 0; i < loginNodes.length(); i++) {
JSONObject jo = loginNodes.getJSONObject(i);
String key1 = jo.getString("key1");
String key2 = jo.getString("key2");
}
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
pDialog.dismiss();
try {
if (error instanceof TimeoutError ) {
//Time out error
}else if(error instanceof NoConnectionError){
//net work error
} else if (error instanceof AuthFailureError) {
//error
} else if (error instanceof ServerError) {
//Erroor
} else if (error instanceof NetworkError) {
//Error
} else if (error instanceof ParseError) {
//Error
}else{
//Error
}
//End
} catch (Exception e) {
}
}
}) {
#Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<>();
params.put("uname", "era#gmail.com");
params.put("pass", "123456");
return params;
}
};
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
}

There can be number of reasons why your app crashes with incorrect url, one could be that the host is un resolvable, you can check the validity of a Url by using the following code:
URLUtil.isValidUrl(url)

Not execute Volley JSON onResponse function

When I call getData.It seems that it is hard to get the result out from the onResponse. I know it cannot work in this current way. Could anyone help me to settle this problem?
getData()
private void getData(){
//Creating a string request
StringRequest stringRequest = new StringRequest(SPINNER_URL, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
// Log.d("Country_name","hi");
JSONObject j = null;
try {
//Parsing the fetched Json String to JSON Object
j = new JSONObject(response);
//Storing the Array of JSON String to our JSON Array
result = j.getJSONArray(JSON_ARRAY);
Log.v("xxxxx",result.toString());
String mysh=result.toString().substring(1, result.toString().length()-1);
JSONArray jsonArray = new JSONArray(mysh);
//Calling method getCountry to get the country from the JSON Array
getCountry(jsonArray);
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
});
//Creating a request queue
RequestQueue requestQueue = Volley.newRequestQueue(this);
//Adding request to the queue
requestQueue.add(stringRequest);
}

Try this i think it should work
private void getData(){
//Creating a string request
StringRequest stringRequest = new StringRequest(SPINNER_URL, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
JSONArray jsonArray = new JSONArray(response);
getCountry(jsonArray);
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
});
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
}

Try that, this will help.
private void getData() {
String tag_string_req = "req_name";
spotsDialog.show();
StringRequest strReq = new StringRequest(Method.POST,
YOUR URL, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.d(TAG, "Response: " + response.toString());
try {
JSONObject object = new JSONObject(response);
JSONArray array = object.getJSONArray("YOUR ARRAY NAME");
for (int i=0;i<array.length();i++){
String result = array.getString(i).toString();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, "Error: " + error.getMessage());
}
});
strReq.setRetryPolicy(new RetryPolicy() {
#Override
public void retry(VolleyError arg0) throws VolleyError {
}
#Override
public int getCurrentTimeout() {
return 0;
}
#Override
public int getCurrentRetryCount() {
return 0;
}
});
RequestQueue requestQueue = Volley.newRequestQueue(this);
//Adding request to the queue
requestQueue.add(stringRequest);
}
Happy To Help.

Connection Timeout Android

i have an android app in which i hit a web service and gets the result.
Now i want is if result is getting to long to be fetched or in between request internet connection is gone then i show a message or a dialog to the user that Your connection timed out
I've tried this code but this is not working
Any help would be appreciated
blic void getVolleyTask(Context context,
final IVolleyReponse responseContext, String URL) {
RequestQueue request = Volley.newRequestQueue(context);
StringRequest strReq = new StringRequest(Request.Method.GET, URL,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
if (response != null) {
JSONArray _array = new JSONArray(response);
responseContext.ResponseOk(_array);
} else {
responseContext.ResponseOk(null);
}
} catch (Exception e) {
e.printStackTrace();
responseContext.ResponseOk(null);
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
responseContext.ErrorBlock();
}
});
strReq.setRetryPolicy(new DefaultRetryPolicy(socketTimeout, maxTries,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
request.add(strReq);
}
public void getVolleyPostTask(Context context,
final IVolleyJSONReponse jsonResponseContext, String URL,
JSONObject obj) {
RequestQueue request = Volley.newRequestQueue(context);
JsonObjectRequest myRequest = new JsonObjectRequest(
Request.Method.POST, URL, obj,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
jsonResponseContext.ResponseOk(response);
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
jsonResponseContext.ErrorBlock();
}
}) {
#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;
}
};
myRequest.setRetryPolicy(new DefaultRetryPolicy(socketTimeout,
maxTries, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
request.add(myRequest);
}
thanks in advance!

VollyJson library have a capability to differentiate different network errors while communicating with webservices.When something went wrong with JSONObjectRequest onErrorResponse will be called,there you can differentiate the error as follows.
public void onErrorResponse(VolleyError error) {
if (error instanceof TimeoutError || error instanceof NoConnectionError) {
//Write Your code here
} else if (error instanceof AuthFailureError) {
//TODO
} else if (error instanceof ServerError) {
//TODO
} else if (error instanceof NetworkError) {
//TODO
} else if (error instanceof ParseError) {
//TODO
}

Android Volley POST JsonObject and get JsonArray or JsonObject or Other response

in volley we have some ability to retrieve data from server such as jsonObject,jsonArray and String. in this below sample we can get simply jsonObject or jsonArray response from server,
public static void POST(HashMap<String, String> params, final Listeners.ServerResponseListener listener) {
JsonObjectRequest req1 = new JsonObjectRequest(ApplicationController.URL, new JSONObject(params),
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
Log.e("Response:", response.toString());
if (listener != null)
listener.onResultJsonObject(response);
else
Log.e(TAG,"Error: SetServerResponse interface not set");
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e("Error: ", error.getMessage());
}
});
ApplicationController.getInstance().addToRequestQueue(req1);
}
my problem is i want to send jsonObject from this method and get jsonArray or jsonObject from server, and i can not get simply array from server with this method. for example i must be filter server response with this jsonObject:
HashMap<String, String> params = new HashMap<String, String>();
params.put("token", "AbCdEfGh123456");
params.put("search_count", "10");
params.put("order_by", "id");
server return jsonArray and i can not get that with Volley response

Looking at the source code of JsonArrayRequest. There is a constructor which takes in a JSONObject. You should check it out

public class RetreiveData {
public static final String TAG = RetreiveData.class.getSimpleName();
public static void POST(String localhost, final HashMap<String, String> params, final Listeners.ServerResponseListener listener) {
StringRequest post = new StringRequest(Request.Method.POST, localhost, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
if (listener != null)
listener.onResponse(response.toString());
else
Log.e(TAG, "Error: SetServerResponse interface not set");
} catch (Exception e) {
e.printStackTrace();
Log.d("Error: ", e.getMessage());
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.d("Error: ", error.toString());
}
}) {
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> map = params;
return map;
}
#Override
public RetryPolicy getRetryPolicy() {
setRetryPolicy(new DefaultRetryPolicy(
5000, DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
return super.getRetryPolicy();
}
};
ApplicationController.getInstance().addToRequestQueue(post);
}
}

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

Android volley NoConnection Error : java.io.IOException, java.io.EOFException - android

Related

sending jsonobject to server

google/volley App crashing when URL do not exist

Not execute Volley JSON onResponse function

Connection Timeout Android

Android Volley POST JsonObject and get JsonArray or JsonObject or Other response

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