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while sending array from android to server 1st element sets at server side 0 value but in android it sets correct value what is the solution

server data
android data
I am passing arraylist of srid of all element and post to server using volley request.enter image description here
here is the code
public class AttendenceShowStdList extends AppCompatActivity {
ActivityAttendenceShowStdListBinding AttendenceShowStdList;
ArrayList<AttStdListModel> userlist = new ArrayList<>();
ArrayList<AllStdListsrIdAdmIdModel> list= new ArrayList<>();
ArrayList<AllStdListModel> stdlist = new ArrayList<>();
AttStdListAdapter adapter;
private DatePickerDialog datePickerDialog;
private String date,clid,sectionId,yrId,instId,usid,usType,attdate;
SharedPreferences sharedPreferences_teach;//staff shareprefferece for profile fetch
private static final String SHARED_PREF_NAME_TEACH="myprefteach";
private static final String Key_USID_TEACH = "techusid";
private static final String Key_INSTID_TEACH = "techinstid";
private static final String Key_USTYPE_TEACH = "techustype";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
AttendenceShowStdList= ActivityAttendenceShowStdListBinding.inflate(getLayoutInflater());
setContentView(AttendenceShowStdList.getRoot());
sharedPreferences_teach =getSharedPreferences(SHARED_PREF_NAME_TEACH, Context.MODE_PRIVATE);
instId=sharedPreferences_teach.getString(Key_INSTID_TEACH,null);
usid=sharedPreferences_teach.getString(Key_USID_TEACH,null);
usType=sharedPreferences_teach.getString(Key_USTYPE_TEACH,null);
//getting data from TakeAttendenceAdapter cardview
clid=getIntent().getExtras().getString("ClassId");
sectionId=getIntent().getExtras().getString("sectionId");
Log.d("cliddd",clid);
yrId=getIntent().getExtras().getString("YearId");
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
date = sdf.format(new Date());
Log.d("dttt",date);
userlist = (ArrayList<AttStdListModel>) getModel(false);
adapter = new AttStdListAdapter(this,userlist);
AttendenceShowStdList.rvstdlist.setAdapter(adapter);
AttendenceShowStdList.rvstdlist.setLayoutManager(new LinearLayoutManager(getApplicationContext(), LinearLayoutManager.VERTICAL, false));
// recyclerView.setLayoutManager(new LinearLayoutManager(getApplicationContext()));
// recyclerView.setHasFixedSize(true);
getData();
//toolbar
setSupportActionBar(AttendenceShowStdList.toolbar);
Objects.requireNonNull(getSupportActionBar()).setDisplayShowHomeEnabled(true);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
AttendenceShowStdList.submit.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
submitAttendence();
// Intent intent = new Intent(AttendenceShowStdList.this,SubmitAttendenceActivity.class);
// startActivity(intent);
}
});
}
private List<AttStdListModel> getModel(boolean isSelect){
List<AttStdListModel> list = new ArrayList<>();
for(int i = 0; i < list.size(); i++){
AttStdListModel model = new AttStdListModel();
model.setSelected(isSelect);
// model.setStud_name(String.valueOf(list.get(i)));
model.setAdmi_id(String.valueOf(list.get(i)));
list.add(model);
}
return list;
}
private void getData() {
RequestQueue queue = Volley.newRequestQueue(getApplicationContext());
String url1="https://comzent.in/wonderschoolerp/apis/teacher/get_studteachers_att.php";
StringRequest request = new StringRequest(Request.Method.POST, url1, new com.android.volley.Response.Listener<String>() {
#SuppressLint("NotifyDataSetChanged")
#Override
public void onResponse(String response) {
// Toast.makeText(getContext(), "Data added to API", Toast.LENGTH_SHORT).show();
try {
JSONObject respObj = new JSONObject(response);
JSONArray jsonArray5=respObj.getJSONArray("studatt_details");
Log.d("std details",jsonArray5.toString());
for(int i=0;i<jsonArray5.length();i++){
JSONObject jsonObject=jsonArray5.getJSONObject(i);
String sr_id=jsonObject.optString("sr_id");
String admi_id=jsonObject.optString("admi_id");
String stud_name=jsonObject.optString("stud_name");
String stud_phone=jsonObject.optString("stud_phone");
String stud_email=jsonObject.optString("stud_email");
String attd_status=jsonObject.optString("attd_status");
String attd_reason=jsonObject.optString("attd_reason");
userlist.add(new AttStdListModel(sr_id,admi_id,stud_name,stud_phone,stud_email,
attd_status,attd_reason));
Log.d("s", String.valueOf(userlist));
list.add(new AllStdListsrIdAdmIdModel(sr_id,admi_id,stud_name,stud_phone,stud_email,
attd_status,attd_reason));
}
} catch (JSONException e) {
e.printStackTrace();
}
adapter=new AttStdListAdapter(getApplicationContext(),userlist);
AttendenceShowStdList.rvstdlist.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
}, new com.android.volley.Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getApplicationContext(), "Fail to get response = " + error, Toast.LENGTH_SHORT).show();
}
}) {
#Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<String, String>();
params.put("get_studattd","1");
params.put("us_id",usid);
params.put("inst_id",instId);
params.put("class_id",clid);
params.put("sec_id",sectionId);
params.put("ay_id",yrId);
params.put("stud_attend_date",date);
return params;
}
};
queue.add(request);
}
//submit attendence
private void submitAttendence() {
RequestQueue queue = Volley.newRequestQueue(getApplicationContext());
String url1="https://comzent.in/wonderschoolerp/apis/teacher/take_studteacher_att.php";
StringRequest request = new StringRequest(Request.Method.POST, url1, new com.android.volley.Response.Listener<String>() {
#Override
public void onResponse(String response) {
// Toast.makeText(getContext(), "Data added to API", Toast.LENGTH_SHORT).show();
try {
JSONObject respObj = new JSONObject(response);
String msg=respObj.getString("message");
Toast.makeText(AttendenceShowStdList.this, msg, Toast.LENGTH_LONG).show();
Log.d("response msg",msg);
if(msg.equals("Attendance Generated Successfully..!")){
finish();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new com.android.volley.Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getApplicationContext(), "Fail to get response = " + error, Toast.LENGTH_LONG).show();
Log.d("error msg", String.valueOf(error));
}
}) {
#Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<String, String>();
ArrayList<String> allstdsrid = new ArrayList<String>();
for(int i=0; i < list.size(); i++) {
allstdsrid.add(String.valueOf(list.get(i).getSr_id()));
}
params.put("sr_id", String.valueOf(allstdsrid));
Log.d("params", String.valueOf(params));
Log.d("allstudentsrid", String.valueOf(allstdsrid));
ArrayList<String> allstdadmid = new ArrayList<String>();
for(int i=0; i < list.size(); i++) {
allstdadmid.add(list.get(i).getAdmi_id());
params.put("admission_id", String.valueOf(allstdadmid));
}
Log.d("allstudentsadmid", String.valueOf(allstdadmid));
///selected student list
ArrayList<String> attstd = new ArrayList<String>();
for (int i = 0; i < AttStdListAdapter.userlist.size(); i++) {
if (AttStdListAdapter.userlist.get(i).getSelected()) {
attstd.add(AttStdListAdapter.userlist.get(i).getAdmi_id());
}
}
params.put("student_attend_submit","1");
params.put("class_id",clid);
params.put("sec_id",sectionId);
params.put("ay_id",yrId);
params.put("att_status", String.valueOf(attstd));
Log.d("params", String.valueOf(params));
params.put("stud_attend_date",date);
params.put("inst_id",instId);
params.put("us_id",usid);
params.put("us_type",usType);
return params;
}
};
queue.add(request);
}
//toolbar back to home
public boolean onOptionsItemSelected(#NonNull MenuItem item) {
if(item.getItemId()==android.R.id.home){
finish();
}
return super.onOptionsItemSelected(item);
}
}
After submitting attendance, values of array of srid and admid retrive at server correctly ,problem is that only first record's srid and admid sets to '0' value.There is no problem when same Api is fetch on postman.

Making recyclerview not jump to top

I am executing getMessages() every minute and it jumps everytime to the top because of the
myadapter.notifyDataSetChanged();
How can I make so that the Recyclerview holds it's position even if it's updated or not?
private void getMessages() {
StringRequest request = new StringRequest(Request.Method.POST, uRl, response -> {
try{
if (lstMessages != null) {
lstMessages.clear();
}
JSONArray jsonArray = new JSONArray(response);
for (int i = 0; i < jsonArray.length(); i++) {
try {
JSONObject jsonObject = jsonArray.getJSONObject(i);
chatModel um = new chatModel();
um.setM_msg(jsonObject.getString("message"));
lstMessages.add(um);
} catch (JSONException e) {
e.printStackTrace();
}
}
}catch (JSONException e2){
e2.printStackTrace();
}
if (!started) {
layoutManager = new LinearLayoutManager(this);
layoutManager.setStackFromEnd(true);
rv_msg.setLayoutManager(layoutManager);
chat myadapter = new chat(this, lstMessages);
rv_msg.setAdapter(myadapter);
start();
} else {
chat myadapter = new chat(this, lstMessages);
myadapter.notifyDataSetChanged();
}
}, error -> {
MySingleton.getmInstance(this).MySingletonClear(this);
}) {
#Override
protected Map<String, String> getParams() throws AuthFailureError {
HashMap<String, String> param = new HashMap<>();
param.put("aa", String.valueOf(aa));
param.put("bb", String.valueOf(bb));
return param;
}
};
request.setRetryPolicy(new DefaultRetryPolicy(30000, DefaultRetryPolicy.DEFAULT_MAX_RETRIES, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
MySingleton.getmInstance(this).addToRequestQueue(request);
}

If you clear list of data and use notifyDataSetChanges() recyclerview will refresh all items.
You can use distinct function to prevent duplicate data.
Here is an example distinct function:
private void distinctMessages(List<Message> newMessages) {
if (lstMessages.size() < 1 || lstMessages == null) {
lstMessages.addAll(newMessages);
return;
}
for (Message newMessage: newMessages) {
boolean hasSameMessages = false;
for (Message currentMessage: lstMessages) {
if (newMessage.getId().equals(currentMessage.getId())) {
hasSameMessages = true;
break;
}
}
if (!hasSameMessages) {
lstMessages.add(newMessage);
}
}
}
And you can use it in your existing code like this :
private void getMessages() {
StringRequest request = new StringRequest(Request.Method.POST, uRl, response -> {
try{
ArrayList<Message> newMessages = new ArrayList<Message>;
JSONArray jsonArray = new JSONArray(response);
for (int i = 0; i < jsonArray.length(); i++) {
try {
JSONObject jsonObject = jsonArray.getJSONObject(i);
chatModel um = new chatModel();
um.setM_msg(jsonObject.getString("message"));
newMessages.add(um);
} catch (JSONException e) {
e.printStackTrace();
}
}
distinctMessages(newMessages);
}catch (JSONException e2){
e2.printStackTrace();
}
if (!started) {
layoutManager = new LinearLayoutManager(this);
layoutManager.setStackFromEnd(true);
rv_msg.setLayoutManager(layoutManager);
chat myadapter = new chat(this, lstMessages);
rv_msg.setAdapter(myadapter);
start();
} else {
chat myadapter = new chat(this, lstMessages);
myadapter.notifyDataSetChanged();
}
}, error -> {
MySingleton.getmInstance(this).MySingletonClear(this);
}) {
#Override
protected Map<String, String> getParams() throws AuthFailureError {
HashMap<String, String> param = new HashMap<>();
param.put("aa", String.valueOf(aa));
param.put("bb", String.valueOf(bb));
return param;
}
};
request.setRetryPolicy(new DefaultRetryPolicy(30000, DefaultRetryPolicy.DEFAULT_MAX_RETRIES, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
MySingleton.getmInstance(this).addToRequestQueue(request);
}
Please take a look Android Documentation

Try Adding this code
View v = rv_msg.getChildAt(0);
int top = (v == null) ?0 : v.getTop();
layoutManager.scrollToPositionWithOffset(lstMessages.size(), top);
after myadapter.notifyDataSetChanged();

Have you tried notifyItemRangeChanged(int positionStart, int itemCount) ? You have to use this instead of notifyDataSetChanged() while appending new items.
Add a method inside your adapter like below:
public void appendListToAdapter(List<String> list) {
int currentListSize = this.mList.size();
this.mList.addAll(list);
notifyItemRangeChanged(currentListSize, list.size());
}
Just grab the old list size into currentListSize and pass it to method.
Now call this method when you need to append your list with new messages.

Parse json multiple url

I can parse json from a url in this way:
String link1 = "http://www.url.com/test1.json";
String link2 = "http://www.url.com/test2.json";
private void fetchMovies() {
String url = link1;
JsonArrayRequest req = new JsonArrayRequest(url,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
if (response.length() > 0) {
for (int i = 0; i < response.length(); i++) {
try {
JSONObject movieObj = response.getJSONObject(i);
int rank = movieObj.getInt("rank");
String title = movieObj.getString("title");
Movie m = new Movie(rank, title);
movieList.add(0, m);
} catch (JSONException e) {
}
}
adapter.notifyDataSetChanged();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_LONG).show();
}
});
MyApplication.getInstance().addToRequestQueue(req);
}
I want to parse my json from multiple url.
I want to parse url1 and url2 at the same time.
How can I do that?

I created a class MyAsyncTask, this class receive the URL's list and the context activity. Guide yourself with the sample code.
public class MyAsyncTask extends AsyncTask<Void, Void, List<JSONObject>> {
private Activity activity;
private List<String> urls;
public MyAsyncTask(Activity activity, List<String> urls) {
this.urls = urls;
this.activity = activity;
}
#Override
protected List<JSONObject> doInBackground(Void... voids) {
HttpURLConnection connection = null;
BufferedReader reader = null;
List<JSONObject> jsonURls = new ArrayList<>();
try{
for (String url : urls) {
URL link = new URL(url);
connection = (HttpURLConnection) link.openConnection();
connection.setRequestProperty("Content-Type", "application/json");
connection.setRequestMethod("GET");
connection.connect();
reader = new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8"));
String line = null;
StringBuilder sb = new StringBuilder();
while ((line = reader.readLine()) != null)
sb.append(line);
reader.close();
JSONObject jsonResult = new JSONObject(sb.toString());
jsonURls.add(jsonResult);
}
} catch (MalformedURLException e) {
e.printStackTrace();
Toast.makeText(activity, "URL error", Toast.LENGTH_SHORT).show();
} catch (IOException e) {
e.printStackTrace();
Toast.makeText(activity, "Connection error", Toast.LENGTH_SHORT).show();
} catch (JSONException e) {
e.printStackTrace();
Toast.makeText(activity, "JSON Parsing error", Toast.LENGTH_SHORT).show();
}
return jsonURls;
}
#Override
protected void onPostExecute(List<JSONObject> jsonObjects) {
super.onPostExecute(jsonObjects);
// Process your JSONs
}
}
For to call it, you should do the following (Within your activity):
List<String> urls = new ArrayList<>();
urls.add("https://jsonplaceholder.typicode.com/posts/1");
MyAsyncTask myAsyncTask = new MyAsyncTask(MyActivity.this, urls);
myAsyncTask.execute();
The processing of the JSONs, you must in the PostExecute method.
Don't forget add internet permissions.

you can simple add your urls into the arraylist and parse the urls through a loop.
Arralist<String> arraylist = new Arraylist;
arraylist.add(link1);
arralist.add(link2);
private void fetchMovies() {
int x = arralist.size();
for(int i = 0;i<x;i++)
{ JsonArrayRequest req = new JsonArrayRequest(arralist.get(i),
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
if (response.length() > 0) {
for (int i = 0; i < response.length(); i++) {
try {
JSONObject movieObj = response.getJSONObject(i);
int rank = movieObj.getInt("rank");
String title = movieObj.getString("title");
Movie m = new Movie(rank, title);
movieList.add(0, m);
} catch (JSONException e) {
}
}
adapter.notifyDataSetChanged();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_LONG).show();
}
});
MyApplication.getInstance().addToRequestQueue(req);
}}

How to access object>array>object>array>object in json?

I have to fetch text via json in url .
The hierarchy is given below :
object>array>object>array>object.
I want to get text with this code .But I am getting error :org.json.JSONException: No value for text
Below is the code :-
public class ListViewActivity extends Activity {
// Log tag
private static final String TAG = ListViewActivity.class.getSimpleName();
// change here url of server api
private static final String url = "http://2e9b8f52.ngrok.io/api/v1/restaurants?per_page=5&km=1&location=true&lat=19.0558306414&long=72.8339840099";
private ProgressDialog pDialog;
private List<Movie> movieList = new ArrayList<Movie>();
private ListView listView;
private CustomListAdapter adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_listview);
listView = (ListView) findViewById(R.id.list);
adapter = new CustomListAdapter(this, movieList);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Movie movie = movieList.get(position);
Intent intent = new Intent(ListViewActivity.this, SecondActivity.class);
intent.putExtra("name", movie.getName());
intent.putExtra("average_ratings", movie.getAverage_ratings());
intent.putExtra("full_address", movie.getAddress());
intent.putExtra("image_url", movie.getThumbnailUrl());
intent.putExtra("cuisine",movie.getCuisine());
intent.putExtra("cost",movie.getCost());
startActivity(intent);
}
});
listView.setAdapter(adapter);
pDialog = new ProgressDialog(this);
// Showing progress dialog before making http request
pDialog.setMessage("Please Keep patience.Its loading...");
pDialog.show();
// Creating volley request obj
JsonObjectRequest movieReq = new JsonObjectRequest(Request.Method.GET,
url, null, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
Log.d(TAG, response.toString());
JSONArray
restaurantsJSONArray= null;
try {
restaurantsJSONArray = response.getJSONArray("restaurants");
} catch (JSONException e) {
e.printStackTrace();
}
hidePDialog();
// Parsing json
for (int i = 0; i < restaurantsJSONArray.length(); i++) {
try {
JSONObject obj =restaurantsJSONArray.getJSONObject(i);
Movie movie = new Movie();
//movie.setTitle(obj.getString("title"));
movie.setName(obj.getString("name"));
//movie.setThumbnailUrl(obj.getString("image"));
movie.setThumbnailUrl(obj.getString("org_image_url"));
movie.setAverage_ratings(obj.getString("average_ratings"));
movie.setCuisine(obj.getString("cuisine"));
movie.setAddress(obj.getJSONObject("address").getString("area"));
// movie.setAddress(obj.getJSONObject("address").getString("full_address"));
movie.setCost(obj.getString("cost"));
movie.setDistance( obj.getDouble("distance"));
movie.settext(obj.getString("text"));
movieList.add(movie);
} catch (JSONException e) {
e.printStackTrace();
}
}
adapter.notifyDataSetChanged();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "Error: " + error.getMessage());
hidePDialog();
}
});
AppController.getInstance().addToRequestQueue(movieReq);
}
#Override
public void onDestroy() {
super.onDestroy();
hidePDialog();
}
private void hidePDialog() {
if (pDialog != null) {
pDialog.dismiss();
pDialog = null;
}
}
}
I am attaching snapshot of json data. In the snapshot we can see the color "Text=15% discount on bill " i have to access .

try {
String yourresponseString ="";// this string refer to your api response
JSONObject jsonObject = new JSONObject(yourresponseString);
JSONArray objJsonArray = new JSONArray(jsonObject.getString("restaurants"));
for (int i = 0; i < objJsonArray.length(); i++) {
JSONArray objInnerJsonArray = objJsonArray.getJSONObject(i).getJSONArray("restaurant_offers");
for (int j = 0; j < objInnerJsonArray.length(); j++) {
//Here you can acess youe bill discount value
JSONObject objInnerJSONObject = objInnerJsonArray.getJSONObject(j);
System.out.println("Discount==>" + objInnerJSONObject.getString("text"));
}
}
} catch (JSONException e) {
e.printStackTrace();
}
You can parse like this.And using this classes you can parse any type of hierarchy.

JSONArray restaurantsJSONArray= null;
try {
restaurantsJSONArray = response.getJSONArray("restaurants");
} catch (JSONException e) {
e.printStackTrace();
}
hidePDialog();
// Parsing json
for (int i = 0; i < restaurantsJSONArray.length(); i++) {
try {
JSONObject obj =restaurantsJSONArray.getJSONObject(i);
Movie movie = new Movie();
//movie.setTitle(obj.getString("title"));
movie.setName(obj.getString("name"));
JSONArray textJSONArray= obj.getJSONArray("restaurant_offers");
for (int j = 0; j < textJSONArray.length(); j++) {
JSONObject txtobj =textJSONArray.getJSONObject(i);
movie.settext(txtobj .getString("text"));
}
movieList.add(movie);
} catch (JSONException e) {
e.printStackTrace();
}
}
try this code restaurant_offers is a JSONArray so you can parse like this

You can parse like this
JSONObject apiResponseJsonObject= // Your API Response
try {
JSONArray restaurantJSONArray = apiResponseJsonObject.getJSONArray("restaurants");
// you can get any text from an object like this
restaurantJSONArray.getJSONObject(index).getString("name");
restaurantJSONArray.getJSONObject(index).getString("cost"); // Like this
//If you want to access phone numbers of specific object
JSONArray phoneJSONArray=restaurantJSONArray.getJSONObject(index).getJSONArray("phone_numbers");
// And you can get specific data from phoneNumber like this
phoneJSONArray.getJSONObject(phoneNumberIndex).getString("number");
//TO get Address, you can use like this
JSONObject addressJSONObject=restaurantJSONArray.getJSONObject(index).getJSONObject("address");
//Like this you can parse whatever you want.
} catch (JSONException e) {
e.printStackTrace();
}

You must change the for loop content like this
JSONObject obj =restaurantsJSONArray.getJSONObject(i);
JSONArray restauranstOffersJSONArray = obj.getJSONArray("restaurants_offers");
for (int i = 0; i < restauranstOffersJSONArray.length(); i++) {
JSONObject offersObj = restauranstOffersJSONArray.get(i);
String text = offersObj.getString("text");
}

AsyncTask: doInbackground() not called with executeOnExecutor and execute

The code below tested on LG G3 and it worked fine. However when I tested it on a Samsung Galaxy S3/S2 doInBackground() is not called for some reason.
Code to check api:
public void startBlat(String tosearch) {
AsynctaskMovie asynctaskMovie = new AsynctaskMovie();
if (Build.VERSION.SDK_INT>=Build.VERSION_CODES.HONEYCOMB) {
asynctaskMovie.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR,tosearch);
}
else {
asynctaskMovie.execute(tosearch);
}
The Asynctask code:
class AsynctaskMovie extends AsyncTask<String, String, ArrayList<Movie>> {
JSONParser jsonParser = new JSONParser();
private static final String SEARCH_URL = "http://www.omdbapi.com/?";
#Override
protected void onPreExecute() {
super.onPreExecute();
movieArrayList = new ArrayList();
Log.i(getActivity().getCallingPackage(), "onPreExecute");
}
#Override
protected ArrayList<Movie> doInBackground(String... args) {
Log.i(getActivity().getCallingPackage(),"doInBackground");
HashMap<String, String> params = new HashMap<>();
params.put("s", args[0]);
params.put("r", "json");
JSONObject json = jsonParser.makeHttpRequest(SEARCH_URL, "GET", params);
Log.i(getActivity().getCallingPackage(), json.toString());
if (json != null) {
try {
if (json.getString("Response").equals("False")) {
return movieArrayList;
}
} catch (JSONException e) {
}
try {
JSONArray jsonArray = json.getJSONArray("Search");
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonObject = (JSONObject) jsonArray.get(i);
String movieid = jsonObject.getString(App.getInstance().IMDBimdbID);
if (!movieid.equals("null")) {
Movie movie = new Movie(movieid);
movieArrayList.add(movie);
}
}
jsonArray = new JSONArray();
for (Movie movie : movieArrayList) {
params = new HashMap<>();
params.put("i", movie.getMovieid());
params.put("plot", "short");
params.put("r", "json");
JSONObject jsongetfullinfo = jsonParser.makeHttpRequest(SEARCH_URL, "GET", params);
if (jsongetfullinfo != null) {
jsonArray.put(jsongetfullinfo);
Log.i("", jsongetfullinfo.toString());
}
}
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jObject = jsonArray.getJSONObject(i);
movieArrayList.get(i).updateFromIMDB(jObject);
}
for (Movie movie : movieArrayList) {
movie.setMovieposter(LoadFromUrl(movie.getPosterURL()));
}
return movieArrayList;
} catch (JSONException e) {
e.printStackTrace();
}
}
return movieArrayList;
}
#Override
protected void onPostExecute(ArrayList<Movie> movieArrayList) {
Log.i("ronen", "list size: " + movieArrayList.size());
if (movieArrayList.size() > 0) {
listView.setAdapter(new MovieAdapter(getActivity(), movieArrayList));
listView.setVisibility(View.VISIBLE);
} else {
Toast.makeText(getActivity().getApplicationContext(), "No found", Toast.LENGTH_SHORT).show();
}
}
private Bitmap LoadFromUrl(String theurl) {
URL url = null;
Bitmap bmp = null;
try {
url = new URL(theurl);
bmp = BitmapFactory.decodeStream(url.openConnection().getInputStream());
} catch (IOException e) {
}
return bmp;
}
}
I have no idea what could solve this problem.
Following the answers I read here it seems that the code should work, but not so.

Can't see anything suspicious.
I'd recommend running a very simple AsyncTask on a very simple app, make sure it works (if not, maybe it something to do with the phone, so try on an emulator to be sure)
Then change it step by step to resemble your code, and you'll see where the bug is.
G'Luck!