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How to access json array in url that needs bearer token and display in android studio?

Hello stackoverflow community!!
How do I access a JSON array
in this URL "https://api.json-generator.com/templates/z0aMAeTBHKq3/data"
token is "2oof0bzpgllll2a8k2fmmh6aaykeu8yptztdzke7"
but when I display the data in an Activity, it just displays blank and exits the app. But When I change the URL without an auth/bearer token I can see the displayed data in the URL.
So my question: is how do I put the token in header so that I can have access and see the data displayed in the mobile phone?
I know it is simple but i am having a hard time.
This is my MainActivity.java
public class MainActivity extends AppCompatActivity {
private RecyclerView recyclerView;
private RequestQueue requestQueue;
private List<Movie> movieList;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
recyclerView = findViewById(R.id.recyclerview);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
requestQueue = VolleySingleton.getmInstance(this).getRequestQueue();
movieList = new ArrayList<>();
fetchMovies();
}
private void fetchMovies() {
//Url with auth
String url = "https://api.json-generator.com/templates/z0aMAeTBHKq3/data";
//URL without auth
//String url = "https://jsonplaceholder.typicode.com/posts";
JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(Request.Method.GET, url, null,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
for (int i = 0 ; i < response.length() ; i ++){
try {
JSONObject jsonObject = response.getJSONObject(i);
String userId = jsonObject.getString("userId");
String id = jsonObject.getString("id");
String title = jsonObject.getString("title");
String body = jsonObject.getString("body");
Movie movie = new Movie(title , userId , id , body);
movieList.add(movie);
} catch (JSONException e) {
e.printStackTrace();
}
MovieAdapter adapter = new MovieAdapter(MainActivity.this , movieList);
recyclerView.setAdapter(adapter);
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(MainActivity.this, error.getMessage(), Toast.LENGTH_SHORT).show();
}
});
HashMap headers = new HashMap();
String authValue = "Bearer " +
"2oof0bzpgllll2a8k2fmmh6aaykeu8yptztdzke7";
headers.put("Authorization", authValue);
headers.put("Accept", "application/json; charset=UTF-8");
headers.put("Content-Type", "application/json; charset=UTF-8");
requestQueue.add(jsonArrayRequest);
}
}
this is my Movie.java
public class Movie {
private String userId , id , title, body;
public Movie(String userId , String id , String title , String body){
this.title = title;
this.userId = userId;
this.id = id;
this.body = body;
}
public String getTitle() {
return title;
}
public String getUserId() {
return userId;
}
public String getId() {
return id;
}
public String getBody() {
return body;
}
}
this is my MovieAdapter.java
public class MovieAdapter extends RecyclerView.Adapter<MovieAdapter.MovieHolder> {
private Context context;
private List<Movie> movieList;
public MovieAdapter(Context context , List<Movie> movies){
this.context = context;
movieList = movies;
}
#NonNull
#Override
public MovieHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(context).inflate(R.layout.item , parent , false);
return new MovieHolder(view);
}
#Override
public void onBindViewHolder(#NonNull MovieHolder holder, int position) {
Movie movie = movieList.get(position);
holder.userId.setText(movie.getUserId().toString());
holder.id.setText(movie.getId());
holder.title.setText(movie.getTitle());
holder.body.setText(movie.getBody());
holder.constraintLayout.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(context , DetailActivity.class);
Bundle bundle = new Bundle();
bundle.putString("userId" , movie.getUserId());
bundle.putString("id" , movie.getId());
bundle.putString("title" , movie.getTitle());
bundle.putString("body" , movie.getBody());
intent.putExtras(bundle);
context.startActivity(intent);
}
});
}
#Override
public int getItemCount() {
return movieList.size();
}
public class MovieHolder extends RecyclerView.ViewHolder{
TextView title , userId , id, body;
ConstraintLayout constraintLayout;
public MovieHolder(#NonNull View itemView) {
super(itemView);
userId = itemView.findViewById(R.id.userid_tv);
title = itemView.findViewById(R.id.title_tv);
id = itemView.findViewById(R.id.id_tv);
body = itemView.findViewById(R.id.id_tv);
constraintLayout = itemView.findViewById(R.id.main_layout);
}
}
}
This is my VolleySingleton.java
public class VolleySingleton {
private RequestQueue requestQueue;
private static VolleySingleton mInstance;
private VolleySingleton(Context context){
requestQueue = Volley.newRequestQueue(context.getApplicationContext());
}
public static synchronized VolleySingleton getmInstance(Context context){
if (mInstance == null){
mInstance = new VolleySingleton(context);
}
return mInstance;
}
public RequestQueue getRequestQueue(){return requestQueue;}
}

Try This
Change
private void fetchMovies() {
//Url with auth
String url = "https://api.json-generator.com/templates/z0aMAeTBHKq3/data";
//URL without auth
//String url = "https://jsonplaceholder.typicode.com/posts";
JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(Request.Method.GET, url, null,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
for (int i = 0 ; i < response.length() ; i ++){
try {
JSONObject jsonObject = response.getJSONObject(i);
String userId = jsonObject.getString("userId");
String id = jsonObject.getString("id");
String title = jsonObject.getString("title");
String body = jsonObject.getString("body");
Movie movie = new Movie(title , userId , id , body);
movieList.add(movie);
} catch (JSONException e) {
e.printStackTrace();
}
MovieAdapter adapter = new MovieAdapter(MainActivity.this , movieList);
recyclerView.setAdapter(adapter);
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(MainActivity.this, error.getMessage(), Toast.LENGTH_SHORT).show();
}
});
HashMap headers = new HashMap();
String authValue = "Bearer " +
"2oof0bzpgllll2a8k2fmmh6aaykeu8yptztdzke7";
headers.put("Authorization", authValue);
headers.put("Accept", "application/json; charset=UTF-8");
headers.put("Content-Type", "application/json; charset=UTF-8");
requestQueue.add(jsonArrayRequest);
}
To
private void fetchMovies() {
// Url with auth
String url = "https://api.json-generator.com/templates/z0aMAeTBHKq3/data";
// URL without auth
// String url = "https://jsonplaceholder.typicode.com/posts";
JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(Request.Method.GET, url, null,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
for (int i = 0 ; i < response.length() ; i ++){
try {
JSONObject jsonObject = response.getJSONObject(i);
String userId = jsonObject.getString("userId");
String id = jsonObject.getString("id");
String title = jsonObject.getString("title");
String body = jsonObject.getString("body");
Movie movie = new Movie(title , userId , id , body);
movieList.add(movie);
} catch (JSONException e) {
e.printStackTrace();
}
MovieAdapter adapter = new MovieAdapter(MainActivity.this , movieList);
recyclerView.setAdapter(adapter);
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(MainActivity.this, error.getMessage(), Toast.LENGTH_SHORT).show();
}
}){
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> headers = new HashMap<String, String>();
String authValue = "Bearer " + "2oof0bzpgllll2a8k2fmmh6aaykeu8yptztdzke7";
headers.put("Authorization", authValue);
headers.put("Accept", "application/json; charset=UTF-8");
headers.put("Content-Type", "application/json; charset=UTF-8");
return headers;
}
};
requestQueue.add(jsonArrayRequest);
}
put your headers code inside getHeaders() #Overtide method

I can't fix this Cannot resolve constructor BarData(java.lang.String

I have problem with data = new BarData(names, yAxis);
Cannot resolve constructor 'BarData(java.lang.String[], java.util.ArrayList)
I uses com.github.PhilJay:MPAndroidChart:v2.2.5
I'm new to this programming language, and I'm writing a diploma, but I ran into such a problem, I need to insert graphics into the program, help please.
private ProgressDialog pd;
ArrayList<BarDataSet> yAxis;
ArrayList<BarEntry> yValues;
ArrayList<String> xAxis1;
BarEntry values ;
BarChart chart;
BarData data;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.graph_temp);
pd = new ProgressDialog(intoGraph.this);
pd.setMessage("load");
// Log.d("array",Arrays.toString(fullData));
chart = (BarChart) findViewById(R.id.chart);
load_data_from_server();
}
public void load_data_from_server() {
pd.show();
String url = "http://192.168.0.3/temp2.php";
xAxis1 = new ArrayList<>();
yAxis = null;
yValues = new ArrayList<>();
StringRequest stringRequest = new StringRequest(Request.Method.POST,
url,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.d("string",response);
try {
JSONArray jsonarray = new JSONArray(response);
for(int i=0; i < jsonarray.length(); i++) {
JSONObject jsonobject = jsonarray.getJSONObject(i);
String temperature = jsonobject.getString("temperature").trim();
String date = jsonobject.getString("date").trim();
xAxis1.add(date);
values = new BarEntry(Float.valueOf(temperature),i);
yValues.add(values);
}
} catch (JSONException e) {
e.printStackTrace();
}
BarDataSet barDataSet1 = new BarDataSet(yValues, "temper");
barDataSet1.setColor(Color.rgb(0, 82, 159));
yAxis = new ArrayList<>();
yAxis.add(barDataSet1);
String names[]= xAxis1.toArray(new String[xAxis1.size()]);
data = new BarData(names, yAxis);
chart.setData(data);
chart.setDescription("");
chart.animateXY(2000, 2000);
chart.invalidate();
pd.hide();
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
if(error != null){
Toast.makeText(getApplicationContext(), "err...", Toast.LENGTH_LONG).show();
pd.hide();
}
}
}
);
MySingleton.getInstance(getApplicationContext()).addToRequestQueue(stringRequest);
}
}

passing one param to server and get array using JsonArrayRequest with volley android studio

I'm trying to make an app . I struggling to get some data of one of my table in my database . I know how to get everything from my table , but now i need only few lines of this table. So I have to pass an ID .
The problem is that i cant add any param in JsonArrayRequest.
You can see my php file and my class where I'm calling JsonArrayRequest:
php
<?php
include 'dbconfig.php';
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$user_id = $_POST["user_id"]; // this is what Im trying to fix
$sql = "SELECT * FROM plans WHERE user_id=?"; // and pass the information in ?
$result = $conn->query($sql);
if ($result->num_rows >0) {
// output data of each row
while($row[] = $result->fetch_assoc()) {
$tem = $row;
$json = json_encode($tem);
}
} else {
echo "0 results";
}
echo $json;
$conn->close();
?>
java class:
public class PlansActivity extends AppCompatActivity {
List<GetDataAdapter> GetDataAdapter1;
RecyclerView recyclerView;
RecyclerView.LayoutManager recyclerViewlayoutManager;
RecyclerView.Adapter recyclerViewadapter;
ProgressBar progressBar;
String GET_JSON_DATA_HTTP_URL = "http://travelb.000webhostapp.com/jsonData.php";
String JSON_ID = "user_id";
String JSON_NAME = "destination";
String JSON_SUBJECT = "date";
String JSON_PHONE_NUMBER = "plan_id";
Button button;
PostJsonArrayRequest jsonArrayRequest ;
RequestQueue requestQueue ;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_plans);
GetDataAdapter1 = new ArrayList<>();
recyclerView = (RecyclerView) findViewById(R.id.recyclerView1);
progressBar = (ProgressBar) findViewById(R.id.progressBar1);
button = (Button)findViewById(R.id.button) ;
recyclerView.setHasFixedSize(true);
recyclerViewlayoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(recyclerViewlayoutManager);
final Intent intent = getIntent();
final int id = intent.getIntExtra("user_id", -1);
/* button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
progressBar.setVisibility(View.VISIBLE);
JSON_DATA_WEB_CALL();
}
});*/
JSON_DATA_WEB_CALL();
}
public void JSON_DATA_WEB_CALL(){
JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(GET_JSON_DATA_HTTP_URL,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
progressBar.setVisibility(View.GONE);
JSON_PARSE_DATA_AFTER_WEBCALL(response);
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
});
requestQueue = Volley.newRequestQueue(this);
requestQueue.add(jsonArrayRequest);
}
public void JSON_PARSE_DATA_AFTER_WEBCALL(JSONArray array){
for(int i = 0; i<array.length(); i++) {
GetDataAdapter GetDataAdapter2 = new GetDataAdapter();
JSONObject json = null;
try {
json = array.getJSONObject(i);
GetDataAdapter2.setId(json.getInt(JSON_ID));
GetDataAdapter2.setName(json.getString(JSON_NAME));
GetDataAdapter2.setSubject(json.getString(JSON_SUBJECT));
GetDataAdapter2.setPhone_number(json.getString(JSON_PHONE_NUMBER));
} catch (JSONException e) {
e.printStackTrace();
}
GetDataAdapter1.add(GetDataAdapter2);
}
recyclerViewadapter = new RecyclerViewAdapter(GetDataAdapter1, this);
recyclerView.setAdapter(recyclerViewadapter);
}
}
I read lot of thing but all different . Im new on androidstudio and php .
I hope someone can help me , because Im tryin to do that for 2weeks now .

You should extends JsonArrayRequest in your custom Request like this:
public class MyJsonArrayRequest extends JsonArrayRequest {
private Map<String, String> mPostParams;
#Override
protected Map<String, String> getParams() throws AuthFailureError {
return mPostParams;
}
public MyJsonArrayRequest(String url, Map<String, String> postParams, Response.Listener<JSONArray> listener, Response.ErrorListener errorListener) {
super(url, listener, errorListener);
this.mPostParams = postParams;
}
}
with getParams() method you will able to pass POST parameters.
Map<String, String> params = new HashMap<>();
params.put("ID", id);
params.put("USER_ID", userId);
MyJsonArrayRequest jsonArrayRequest = new MyJsonArrayRequest(GET_JSON_DATA_HTTP_URL, params,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
progressBar.setVisibility(View.GONE);
JSON_PARSE_DATA_AFTER_WEBCALL(response);
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
});
Another way is to pass parameters via GET request in URL.

You can send parameters with jsonArrayRequest like this by overriding getParam method
JsonArrayRequest request = new JsonArrayRequest(method, url, null, responseListener, errorListener) {
#Override
protected Map<String, String> getParams() throws AuthFailureError {
HashMap<String, String> params = new HashMap<>();
try {
params.put("paramOne", "hello");
} catch (JSONException e) {
e.printStackTrace();
}
return params;
}
};
addToRequestQueue(request);

#mcatta
I want to do something like I did in my others acticity :
ProfileRequest profilRequest = new ProfileRequest(id, responseListener);
RequestQueue queue = Volley.newRequestQueue(UserAreaActivity.this);
queue.add(profilRequest);
and
public class ProfileRequest extends StringRequest {
private static final String PROFIL_REQUEST_URL = "http://travelb.000webhostapp.com/Profil.php ";
private Map<String, String> params;
public ProfileRequest(int user_id, Response.Listener<String> listener){
super(Request.Method.POST, PROFIL_REQUEST_URL, listener, null);
params= new HashMap<>();
params.put("user_id", user_id+"");
}
#Override
public Map<String, String> getParams() {
return params;
}
}
so the id in profilerequest is a final int variable.
this one was easy to do .
Im still confused with jsonarrayrequest

Its been a long time but,
someone can find it useful
and the following code works .
public class Activity extends AppCompatActivity {
List<GetDataAdapter> GetDataAdapter1;
RecyclerView recyclerView;
RecyclerView.LayoutManager recyclerViewlayoutManager;
RecyclerView.Adapter recyclerViewadapter;
ProgressBar progressBar;
String GET_JSON_DATA_HTTP_URL = "API here";
//String JSON_ID = "id";
//we have intilize here with json names and database column name also should be kept here
String JSON_FNAME = "contact_fname";
String JSON_LNAME = "contact_lname";
RequestQueue requestQueue ;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_booking);
GetDataAdapter1 = new ArrayList<>();
recyclerView = (RecyclerView) findViewById(R.id.recyclerView1);
progressBar = (ProgressBar) findViewById(R.id.progressBar1);
recyclerView.setHasFixedSize(true);
recyclerViewlayoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(recyclerViewlayoutManager);
//json web call from web
JSON_DATA_WEB_CALL();
}
public void JSON_DATA_WEB_CALL(){
String uid ="value"//Or you can use your value to pass
StringRequest strrequest = new StringRequest(Request.Method.POST,GET_JSON_DATA_HTTP_URL,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
progressBar.setVisibility(View.GONE);
try {
JSON_PARSE_DATA_AFTER_WEBCALL(response);
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
}){
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<>();
params.put("userid", uid);//userid to send to php
return params;
}
};
requestQueue = Volley.newRequestQueue(this);
requestQueue.add(strrequest);
}
public void JSON_PARSE_DATA_AFTER_WEBCALL(String array) throws JSONException {
JSONArray jarr = new JSONArray(array);
for(int i = 0; i<jarr.length(); i++) {
GetDataAdapter GetDataAdapter2 = new GetDataAdapter();//adapter class
//JSONObject json;
try {
JSONObject json = jarr.getJSONObject(i);
// JSONObject json = (JSONObject) array.get(String.valueOf(i));
//set and get methods should declare here with database colmun names and json names
GetDataAdapter2.setcontact_fname(json.getString(JSON_FNAME));
GetDataAdapter2.setcontact_lname(json.getString(JSON_LNAME));
} catch (JSONException e) {
e.printStackTrace();
}
GetDataAdapter1.add(GetDataAdapter2);
}
recyclerViewadapter = new RecyclerViewAdapter(GetDataAdapter1, this);
recyclerView.setAdapter(recyclerViewadapter);
}
}

Why do these two strings ( company_id & branch_id ) equal null in MyRequestQueue_Drivers?

**
the parameters of volley (company_id && branch_id)
equal null although I got its real data before via MyRequestQueue_Company so it causes volley response is nullpointer exception
Why do company_id and branch_id equal null in MyRequestQueue_Drivers? How can I solve this?
public class CheckinActivity extends AppCompatActivity implements AdapterView.OnItemSelectedListener {
String company_id, branch_id;
Spinner driver_name_spinner;
private String User_URL = "http://example.com/api/user?token=";
private String Drivers_URL = "http://example.com/api/getDrivers?company_id=1&branch_id=15";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_checkin);
driver_name_spinner = (Spinner) findViewById(R.id.driver_name_spinner);
next = (Button) findViewById(R.id.next);
SharedPreferences sharedPref = getSharedPreferences("userinfo", getApplicationContext().MODE_PRIVATE);
final String token = sharedPref.getString("token", "");
final RequestQueue MyRequestQueue_Company = Volley.newRequestQueue(this);
// GET COMPANY_ID AND BRANCH_ID FORM API
StringRequest MyStringRequest_Company = new StringRequest(Request.Method.GET, User_URL + token, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.d("response", response);
try {
JSONObject jsono = null;
jsono = new JSONObject(response);
JSONObject jarray = jsono.getJSONObject("user");
company_id = jarray.getString("company_id");
branch_id = jarray.getString("branch_id");
Log.d("User Data", "company_id " + company_id + "\tbranch_id " + branch_id);
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() { //Create an error listener to handle errors appropriately.
#Override
public void onErrorResponse(VolleyError error) {
//This code is executed if there is an error.
}
});
MyRequestQueue_Company.add(MyStringRequest_Company);
// CALL ANOTHER WEBSERVICES TO GET DRIVERS DATA
RequestQueue MyRequestQueue_Drivers = Volley.newRequestQueue(getApplicationContext());
StringRequest MyStringRequest_Drivers = new StringRequest(Request.Method.POST, Drivers_URL, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.d("Drivers Response", response);
try {
JSONObject jsono = null;
jsono = new JSONObject(response);
JSONArray jarray = jsono.getJSONArray("Drivers");
List<String> drivers;
drivers = new ArrayList<String>();
for (int i = 0; i < jarray.length(); i++) {
JSONObject newobject = jarray.getJSONObject(i);
driver_name_txt = newobject.getString("name");
Log.d("Driver Name", driver_name_txt);
drivers.add(driver_name_txt);
}
ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(getBaseContext(), android.R.layout.simple_spinner_item, drivers);
dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
driver_name_spinner.setAdapter(dataAdapter);
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() { //Create an error listener to handle errors appropriately.
#Override
public void onErrorResponse(VolleyError error) {
Log.d("Drivers Error",error.toString());
}
}) {
protected Map<String, String> getParams() {
Map<String, String> MyData = new HashMap<String, String>();
// BRANCH_ID AND COMPANY_ID ARE EQUAL NULL !?
MyData.put("branch_id", branch_id);
MyData.put("company_id", company_id);
Log.d("Last User Data", "company_id " + company_id + "\tbranch_id " + branch_id);
return MyData;
}
};
MyRequestQueue_Drivers.add(MyStringRequest_Drivers);
driver_name_spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long l) {
TextView tmpView = (TextView) driver_name_spinner.getSelectedView().findViewById(android.R.id.text1);
tmpView.setTextColor(Color.WHITE);
driver_name_txt = parent.getItemAtPosition(position).toString();
Log.d("driver_name_original", driver_name_txt);
}
#Override
public void onNothingSelected(AdapterView<?> adapterView) {
}
});

If you want to use getParams function, than I would suggest to define a flag and modify your function like:
#Override
public void onResponse(String response) {
Log.d("response", response);
try {
JSONObject jsono = null;
jsono = new JSONObject(response);
JSONObject jarray = jsono.getJSONObject("user");
company_id = jarray.getString("company_id");
branch_id = jarray.getString("branch_id");
Log.d("User Data", "company_id " + company_id + "\tbranch_id " + branch_id);
requestFinished = true;
} catch (JSONException e) {
e.printStackTrace();
}
}
And your getParams would look like :
protected Map<String, String> getParams() {
if(!requestFinished) return null;
Map<String, String> MyData = new HashMap<String, String>();
// BRANCH_ID AND COMPANY_ID ARE EQUAL NULL !?
MyData.put("branch_id", branch_id);
MyData.put("company_id", company_id);
Log.d("Last User Data", "company_id " + company_id + "\tbranch_id " + branch_id);
return MyData;
But I would suggest to you to use the Observer pattern instead.

get always "please check the number" while get volley response

I have php file when user post existing ticknumber the php will echo JSON code for one array of that was posted, I linked it with Activity that will do same job of php file but when I click on button I get toast message "please check the number" like php page echo " error " but it's not true because I tried by postman and it's work
<?php
if ($_SERVER ['REQUEST_METHOD']=='POST') {
$ticketnumber = $_POST['ticketnumber'];
require_once('config.php');
$con->set_charset('utf8');
$sql = " SELECT * FROM contact WHERE ticketnumber = '$ticketnumber' ";
$res = mysqli_query($con, $sql);
$result = array();
while($get = mysqli_fetch_array($res))
{
array_push($result,array('ticketnumber' =>$get[5], 'subject' =>$get[4],'response' =>$get[6]));
}
if(!empty($result)){
echo json_encode(array("responseticket"=>$result));
} else {
echo " error";
}
}
?>
supportActivity.java
public class supportActivity extends Fragment implements View.OnClickListener{
private EditText ticketsupport;
private Button button;
private List<supportContent> con = new ArrayList<supportContent>();
private ListView supportlist;
private supportAdapter adapter;
private String ticketinput;
private String url = "http://abvb.com/aaa/getticket.php";
private RequestQueue requestQueue1;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.activity_support, container, false);
getActivity().setTitle("Get Ticket");
ticketsupport = (EditText)view.findViewById(R.id.insertticketnumber);
supportlist = (ListView)view.findViewById(R.id.supportlistview);
adapter = new supportAdapter(getActivity(), con);
supportlist.setAdapter(adapter);
button = (Button)view.findViewById(R.id.buttonsupprt);
button.setOnClickListener(this);
return view;
}
private void inquiry() {
ticketinput = ticketsupport.getText().toString().trim();
StringRequest stringRequest1 = new StringRequest(Request.Method.POST, url,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
if (response.trim().equals("error")) {
Toast.makeText(getActivity(), "please check the number", Toast.LENGTH_SHORT).show();
} else {
try {
JSONObject jsonObject = new JSONObject();
JSONArray jsonArray = jsonObject.getJSONArray("responseticket");
JSONObject jTicket = jsonArray.getJSONObject(0);
String Ticketnumber = jTicket.getString("ticketnumber");
String Subject = jTicket.getString("subject");
String Response = jTicket.getString("response");
supportContent support = new supportContent();
support.setTicketnumber(Ticketnumber);
support.setSubject(Subject);
support.setResponse(Response);
con.add(support);
} catch (JSONException e) {
e.printStackTrace();
}
adapter.notifyDataSetChanged();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getActivity(), "something wrong" , Toast.LENGTH_SHORT).show();
}
}) {
#Override
protected Map<String,String> getParams() throws AuthFailureError{
Map<String,String> map = new HashMap<String,String>();
map.put("ticknumber", ticketinput);
return map;
}
};
requestQueue1 = Volley.newRequestQueue(getActivity().getApplicationContext());
requestQueue1.add(stringRequest1);
}
#Override
public void onDestroy(){
super.onDestroy();
}
#Override
public void onClick(View view){
inquiry();
}
}
when ticketnumber existed then php will echo JSON like this
{"responseticket":[{"ticketnumber":"285","subject":"\u0627\u062d\u0628\u0643\u06‌​45 \u0643\u0644\u0643\u0645","response":"vcvc"}]}

Your PHP expects "ticketnumber" in POST arguments:
$ticketnumber = $_POST['ticketnumber'];
Change your android code from:
#Override
protected Map<String,String> getParams() throws AuthFailureError{
Map<String,String> map = new HashMap<String,String>();
map.put("ticknumber", ticketinput);
return map;
}
to:
#Override
protected Map<String,String> getParams() throws AuthFailureError{
Map<String,String> map = new HashMap<String,String>();
map.put("ticketnumber", ticketinput);
return map;
}