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Why am I getting duplicated items on loading more data in RecyclerView?

So I am using Volley to get data from Thinkspeak.com API which has limit results to display the data to JSON format.
Here are the results from the Thinkspeak.com API:
{
"channel": {
"id": "channel_id",
"name": "SISTEM FDRS",
"latitude": "lat",
"longitude": "long",
"field1": "Field Label 1",
"field2": "Field Label 2",
"field3": "Field Label 3",
"field4": "Field Label 4",
"field5": "Field Label 5",
"field6": "Field Label 6",
"created_at": "2019-01-20T02:01:36Z",
"updated_at": "2019-06-27T08:06:29Z",
"last_entry_id": 115
},
"feeds": [{
"created_at": "2019-07-05T10:36:02Z",
"entry_id": 106,
"field1": "31.20",
"field2": "64.30",
"field3": "0.00",
"field4": "2.95",
"field5": "86",
"field6": "2"
},
{
"created_at": "2019-07-05T10:36:50Z",
"entry_id": 107,
"field1": "31.20",
"field2": "64.67",
"field3": "0.00",
"field4": "2.41",
"field5": "86",
"field6": "2"
},
/* ... and so on .. */
]
}
I was able to increase the limit as the end of RecyclerView has been reached by using an addOnScrollListener method.
But the data displayed in RecyclerView are duplicated and I have no idea why.
Here's the Activity code:
public class FFMCActivity extends AppCompatActivity {
private List < Feed > feedList;
private RecyclerView recyclerView;
private String url = "https://api.thingspeak.com/channels/id/feeds.json?api_key=api_key&results=";
private int load_results = 1;
AdapterFFMC adapterFFMC;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_ffmc);
recyclerView = findViewById(R.id.recyclerview);
recyclerView.setHasFixedSize(true);
recyclerView.setNestedScrollingEnabled(false);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
feedList = new ArrayList < > ();
adapterFFMC = new AdapterFFMC(feedList);
recyclerView.setAdapter(adapterFFMC);
getData(load_results);
recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
#Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
if (recyclerView.getAdapter().getItemCount() != 0) {
int lastVisibleItemPosition = ((LinearLayoutManager) recyclerView.getLayoutManager()).findLastCompletelyVisibleItemPosition();
if (lastVisibleItemPosition != RecyclerView.NO_POSITION && lastVisibleItemPosition == recyclerView.getAdapter().getItemCount() - 1) {
getData(load_results++);
Toast.makeText(FFMCActivity.this, "Data loaded: " + load_results, Toast.LENGTH_SHORT).show();
}
}
}
});
}
private void getData(int results) {
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(
Request.Method.GET, url + results,
null,
new Response.Listener < JSONObject > () {
#Override
public void onResponse(JSONObject response) {
JSONArray Jarray = null;
try {
Jarray = response.getJSONArray("feeds");
for (int i = 0; i < Jarray.length(); i++) {
JSONObject feed = Jarray.getJSONObject(i);
feedList.add(new Feed(
feed.getString("created_at"),
feed.getString("entry_id"),
feed.getString("field1"),
feed.getString("field2"),
feed.getString("field3"),
feed.getString("field4"),
feed.getString("field5"),
feed.getString("field6")
));
}
Collections.sort(feedList, new Comparator < Feed > () {
#Override
public int compare(Feed feed1, Feed feed2) {
if (Integer.parseInt(feed1.getEntry_id()) > Integer.parseInt(feed2.getEntry_id())) {
return -1;
} else {
return 1;
}
}
});
adapterFFMC.notifyDataSetChanged();
} catch (JSONException e) {
Log.e("VolleyError", "JSON Parsing Error: " + e.getMessage());
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e("VolleyError", "JSON Response Error: " + error.getMessage());
}
}
);
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(jsonObjectRequest);
}
}
And here's the Adapter code:
public class AdapterFFMC extends RecyclerView.Adapter < AdapterFFMC.ViewHolder > {
private List < Feed > dataFFMC;
public AdapterFFMC(List < Feed > dataFFMC) {
this.dataFFMC = dataFFMC;
}
#Override
public ViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_ffmc, parent, false);
ViewHolder holder = new ViewHolder(v);
return holder;
}
#Override
public void onBindViewHolder(#NonNull ViewHolder holder, int position) {
Feed feed = dataFFMC.get(position);
holder.created_at.setText(feed.getCreated_at());
holder.created_day.setText(feed.getCreated_at());
holder.entry_id.setText(feed.getEntry_id());
holder.field_1.setText(feed.getField_1());
holder.field_2.setText(feed.getField_2());
holder.field_3.setText(feed.getField_3());
holder.field_4.setText(feed.getField_4());
holder.field_5.setText(feed.getField_5());
holder.field_6.setText(feed.getField_6());
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public int getItemViewType(int position) {
return position;
}
#Override
public int getItemCount() {
return dataFFMC.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
TextView created_at, created_day, entry_id, field_1, field_2, field_3, field_4, field_5, field_6;
public ViewHolder(View itemView) {
super(itemView);
created_at = itemView.findViewById(R.id.created_at);
created_day = itemView.findViewById(R.id.created_day);
entry_id = itemView.findViewById(R.id.entry_id);
field_1 = itemView.findViewById(R.id.field_1);
field_2 = itemView.findViewById(R.id.field_2);
field_3 = itemView.findViewById(R.id.field_3);
field_4 = itemView.findViewById(R.id.field_4);
field_5 = itemView.findViewById(R.id.field_5);
field_6 = itemView.findViewById(R.id.field_6);
}
}
}
How do I prevent duplicate results from the code above?
Any help will be much appreciated
Thank you.

Change the sequence of your code to this.
feedList = new ArrayList < > ();
getData(load_results);
adapterFFMC = new AdapterFFMC(feedList);
recyclerView.setAdapter(adapterFFMC);
You are initializing array after setting it's adapter.

Troubles with JSON parsing

I'm working on a simple news app.
I need to fetch data from a remote server in JSON format then put it in view. I use TabLayout and recyclerView to display data categories and Volley for the query no API here.
The TabLayout is set automatically depending on data from JSON where I extract tabs title and the content of every tab is being displayed on recyclerView (Article title, image, content, links...) and rendered inside a fragment
I spent several hours trying to debug it without success., but whatever I do, no data is being displayed. Not sure what I'm doing wrong.
I know this is not the right place to ask for such things, but I'm a bit of a desperate and would need some experienced developer than me look at my problem.
How it works:
Activity launches BaseArticleFragment which calls a method that loads contents categories and bind the data to the views:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
this.fm = getSupportFragmentManager();
this.baseArticleFragment = new BaseArticleFragment();
FragmentTransaction ft = this.fm.beginTransaction();
ft.add(R.id.fragment_container, this.baseArticleFragment, TAB_LAYOUT_FRAGMENT_TAG);
ft.commit();
}
When launched, baseArticleFragment calls loadCategories() method inside its onActivityCreated() method:
#Override
public void onActivityCreated(Bundle savedInstanceState){
super.onActivityCreated(savedInstanceState);
loadCategories();
}
here is the loadCategories() method:
private void loadCategories(){
String url = "http://somesite.com/categories"; //link to grab the json data
ApplicationController.getInstance().addToRequestQueue(
new JsonObjectRequest(0, url, null, new Listener<JSONObject>() { //0 is the Volley code for GET method
#Override
public void onResponse(JSONObject jsonObject) {
BaseArticleFragment.categories = JSONParser.parseCategories(jsonObject);
BaseArticleFragment.this.mViewPager.setAdapter(
new RecyclerViewFragmentPagerAdapter(BaseArticleFragment.this.getChildFragmentManager(),
BaseArticleFragment.categories));
BaseArticleFragment.this.mTabLayout.setupWithViewPager(BaseArticleFragment.this.mViewPager);
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError vError){
Log.d("BaseArticleFragment", "---Volley Error---");
Snackbar.make(BaseArticleFragment.this.mTabLayout, R.string.error_load_categories, Snackbar.LENGTH_SHORT)
.setAction(R.string.action_retry, new View.OnClickListener() {
#Override
public void onClick(View v) {
BaseArticleFragment.this.loadCategories();
}
}).show();
}
}));
}
I guess the problem may be with the query but not sure cause I think my logic here is good
EDIT :
Here is the JSON data I need to fetch:
[
{
"name": "Topic 1",
"tid": "2",
},
{
"name": "Topic 2",
"tid": "3",
},
{
"name": "Topic 3",
"tid": "4",
},
{
"name": "Topic 4",
"tid": "5",
},
{
"name": "Topic 5",
"tid": "6",
},
{
"name": "Topic 6",
"tid": "1415",
},
{
"name": "Topic 7",
"tid": "1414",
},
{
"name": "Topic 8",
"tid": "1298",
},
{
"name": "Topic 9",
"tid": "1301",
},
{
"name": "Topic 10",
"tid": "1299",
},
{
"name": "Topic 11",
"tid": "1302",
},
{
"name": "Topic 12",
"tid": "1300",
},
{
"name": "Topic 13",
"tid": "1297",
}
]
Edit 2:
I forget to paste the code for parseCategories() in my JSONPArser class
public static ArrayList<Category> parseCategories(JSONObject jsonObject) {
ArrayList<Category> categoryArrayList = new ArrayList<>();
try {
JSONArray categories = jsonObject.getJSONArray("categories");
Category all = new Category();
all.setTid("0");
all.setName(ApplicationController.getInstance().getString(R.string.tab_all));
categoryArrayList.add(all);
for (int i = 0; i < categories.length(); i++) {
JSONObject catObject = categories.getJSONObject(i);
Category category = new Category();
category.setTid(catObject.getString("tid"));
category.setName(catObject.getString("name"));
categoryArrayList.add(category);
}
return categoryArrayList;
} catch (JSONException e) {
e.printStackTrace();
return null;
}
}

Try this #esQmo_,
StringRequest stringRequest = new StringRequest(url , new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
JSONArray jsonArray = new JSONArray(response);
ArrayList<Hashmap<String,String>> arraylist = new
ArrayList<>();
for (int i = 0; i < jsonArray.length(); i++) {
HashMap<String, String> hashMap = new HashMap<>();
String name =
jsonArray.getJSONObject(i).getString("name");
String tid =
jsonArray.getJSONObject(i).getString("tid");
hashMap.put("name", name);
hashMap.put("tid ", tid );
arraylist.add(hashMap);
Log.e("response",name + "\n" + tid);
}
attachAdapter(arraylist);
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
});
RequestQueue queue = Volley.newRequestQueue(this);
queue.add(stringRequest);
//setting adapter data to the RecyclerView
private void attachAdapter(ArrayList<HashMap<String, String>>
arrayList) {
ExampleAdapter adapter = new ExampleAdapter(arrayList,this);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
recyclerView.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
}
This is the adapter class
public class ExampleAdpater extends RecyclerView.Adapter<ExampleAdpater.ExampleViewHolder>{
public ArrayList<HashMap<String,String>> arraylist;
public Context context;
public ExampleAdpater(ArrayList<HashMap<String, String>> arraylist, Context context) {
this.arraylist= arraylist;
this.context = context;
}
#NonNull
#Override
public ExampleViewHolder onCreateViewHolder(#NonNull ViewGroup viewGroup, int i) {
View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.textLayout,viewGroup,false);
return new ExampleViewHolder(view);
}
#Override
public void onBindViewHolder(#NonNull ExampleViewHolder viewHolder, int i) {
HashMap<String,String> hashMap = arraylist.get(i);
viewHolder.name.setText(hashMap.get("name"));
viewHolder.tid.setText(hashMap.get("tid"));
}
#Override
public int getItemCount() {
return arraylist.size();
}
public class ExampleViewHolder extends RecyclerView.ViewHolder{
TextView name,tid;
public ExampleViewHolder(#NonNull View itemView) {
super(itemView);
name = itemView.findViewById(R.id.name);
tid = itemView.findViewById(R.id.tid);
name.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(v.getContext(), ""+name.getText().toString(),
Toast.LENGTH_SHORT).show();
}
});
}
}
}
textLayout.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/name"
/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/tid"
/>
</LinearLayout>

You forgot to add this thing at the end of the "load" method:
Volley.newRequestQueue(this).add(jsonRequest);
Try to add it...
Instead of using new RequestQueue, please use RequestQueue jsonQueue = new RequestQueue
Like this:
RequestQueue requestQueue = Volley.newRequestQueue(this);
String url = "https://someurl.com/api";
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(url, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
JSONArray ja = new JSONArray(response);
for(int i = 0; i < ja.length(); i++)
{
JSONObject jo = ja.get(i);
String name = jo.getString("name");
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e("LOG", error.toString());
}
});
requestQueue.add(jsonObjectRequest);

Just check if you have set LayoutManager for recyclerView
recyclerView.setLayoutManager(new LinearLayoutManager(MyActivity.this));

Can we have your code and JSON data too? Since we can't read what's on your mind or on your computer... Plase make some edits to your post, add code and json data so we may help you.

Since you are getting a timeout error you can change the timeout value so that it will be willing to wait longer.
Try something like this:
jsonObjectRequest.setRetryPolicy(new DefaultRetryPolicy(
MY_SOCKET_TIMEOUT_MS,
DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
where MY_SOCKET_TIMEOUT_MS is amount of time (in milliseconds) you want to wait before a timeout. Start with 5000 (5 seconds) and play around with it.
Do this before
requestQueue.add(jsonObjectRequest);

Dyanamic tabs in android with dynamic content from json

I m creating dynamic tabs in android in which the data for the tabs is populated from the json
Following is the json response
{
"shop_details": [
{
"id": "36",
"shop_name": "All in One Mart",
"shop_no": "23223",
"shop_address": "Tinkune",
"phone": "9804966595",
"email": "arjundangal4#gmail.com",
"user_name": "arjun",
"address": "",
"tel": "",
"fax": "",
"facebook": "",
"twitter": "",
"googleplus": "",
"image": "",
"featured_image": ""
}
],
"category": [
{
"category_id": "35",
"category_name": "Skirt",
"product": [
{
"product_id": "49",
"product_name": "Skirt",
"category_id": "35",
"subcategory_id": "37",
"product_color": "blue",
"description": "Skirt for girls",
"price": "301",
"discount": "0",
"service_charge": "0",
"user_id": "36",
"image_name": "6baab8a5308b7e821f5b6387794979a4.jpeg",
"created_at": "2016-07-04 03:54:54"
}
]
},
{
"category_id": "36",
"category_name": "Men",
"product": [
{
"product_id": "48",
"product_name": "Glasses",
"category_id": "36",
"subcategory_id": "39",
"product_color": "red",
"description": "Glasses of Rayban",
"price": "594",
"discount": "23",
"service_charge": "22",
"user_id": "36",
"image_name": "fce01420a9021fdb159226b4bdc5b591.jpg",
"created_at": "2016-07-04 03:52:58"
}
]
},
{
"category_id": "37",
"category_name": "Bags",
"product": [
{
"product_id": "50",
"product_name": "Laptop bag",
"category_id": "37",
"subcategory_id": "41",
"product_color": "black",
"description": "Bag to carry laptop",
"price": "190",
"discount": "2",
"service_charge": "3",
"user_id": "36",
"image_name": "e836e090a54cd2b6b594fa0a3382bb38.jpg",
"created_at": "2016-07-04 04:14:08"
}
]
}
]
}
Following is the code to fetch in which i add the tabs dynamically
private void getShopDetails() {
coordinatorLayout.setVisibility(View.GONE);
new ProgressDialog(this);
ProgressDialog.show();
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(shopDetailsJsonUrl, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
ProgressDialog.dismiss();
coordinatorLayout.setVisibility(View.VISIBLE);
try {
JSONArray shopDetailsArray = response.getJSONArray("shop_details");
JSONObject shopDetailsObj = shopDetailsArray.getJSONObject(0);
shopName = shopDetailsObj.getString("shop_name");
phone = shopDetailsObj.getString("tel");
shopNum = shopDetailsObj.getString("shop_no");
shopAddress = shopDetailsObj.getString("shop_address");
shopImage = shopDetailsObj.getString("featured_image");
Glide.with(getApplicationContext()).load("http://allmartapp.com/appapi/uploads/" + shopImage).diskCacheStrategy(DiskCacheStrategy.SOURCE).into(backdrop);
colLayout.setTitle(shopName);
address.setText("Address - Shop no -" + shopNum + ", " + shopAddress);
JSONArray tabsArray = response.getJSONArray("category");
categoryId = new int[tabsArray.length()];
for (int i = 0; i < tabsArray.length(); i++) {
JSONObject tabsObj = tabsArray.getJSONObject(i);
tabLayout.addTab(tabLayout.newTab().setText(tabsObj.getString("category_name")));
categoryId[i] = tabsObj.getInt("category_id");
}
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
PagerAdapter pagerAdapter = new PagerAdapter(getSupportFragmentManager(), tabLayout.getTabCount());
pager.setAdapter(pagerAdapter);
pager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
#Override
public void onTabSelected(TabLayout.Tab tab) {
pager.setCurrentItem(tab.getPosition());
ShopDetailsTabsFragment.sgetid(categoryId[tab.getPosition()]);
Log.d("CATIID", categoryId[tab.getPosition()] + "");
}
#Override
public void onTabUnselected(TabLayout.Tab tab) {
}
#Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
ProgressDialog.dismissWithError();
}
});
int socketTimeout = 30000;//30 seconds - change to what you want
RetryPolicy policy = new DefaultRetryPolicy(socketTimeout, DefaultRetryPolicy.DEFAULT_MAX_RETRIES, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT);
jsonObjectRequest.setRetryPolicy(policy);
AppController.getInstance().addToRequestQueue(jsonObjectRequest);
}
In ontabselected() i assigned the category id according to the position of the tabs and call the sgetid() function which is in the fragment
My pageradapter returns only one Fragment with the recyclerview.
Following is the Fragment code
public class ShopDetailsTabsFragment extends Fragment {
RecyclerView recyclerView;
boolean isViewShown = false;
CategoryListItemsAdapter shopListRvAdapters;
private String shopDetailsJsonUrl = "http://allmartapp.com/appapi/json/get_shop_details_by_shop_id/";
private String baseshopDetailsJsonUrl = "http://allmartapp.com/appapi/json/get_shop_details_by_shop_id/";
ArrayList<CategoryItemsListModel> arrayList = new ArrayList<>();
static int catid = 0;
int shopId;
public ShopDetailsTabsFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View v = inflater.inflate(R.layout.fragment_shop_details_tabs, container, false);
recyclerView = (RecyclerView) v.findViewById(R.id.rv);
recyclerView.setLayoutManager(new GridLayoutManager(getActivity(), 2));
SharedPreferences sharedPreferences = getActivity().getSharedPreferences("SHOPID", Context.MODE_PRIVATE);
shopId = sharedPreferences.getInt("shopid", 0);
return v;
}
#Override
public void setUserVisibleHint(boolean isVisibleToUser) {
super.setUserVisibleHint(isVisibleToUser);
if (getView() != null) {
isViewShown = true;
getShopCat();
// fetchdata() contains logic to show data when page is selected mostly asynctask to fill the data
} else {
isViewShown = false;
}
}
public static void sgetid(int cat) {
catid = cat;
}
private void getShopCat() {
recyclerView.setAdapter(null);
shopDetailsJsonUrl += shopId;
arrayList.clear();
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(shopDetailsJsonUrl, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
Log.d("JSON", response.toString());
try {
JSONArray categoryArray = response.getJSONArray("category");
for (int i = 0; i < categoryArray.length(); i++) {
JSONObject catObj = categoryArray.getJSONObject(i);
int category_id = catObj.getInt("category_id");
if (category_id == catid) {
JSONArray productArray = catObj.getJSONArray("product");
for (int j = 0; j < productArray.length(); j++) {
JSONObject productObj = productArray.getJSONObject(j);
String name = productObj.getString("product_name");
String image = productObj.getString("image_name");
int id = productObj.getInt("product_id");
int price = productObj.getInt("product_id");
CategoryItemsListModel shopListRvModels = new CategoryItemsListModel(id, image, name, price);
arrayList.add(shopListRvModels);
shopListRvAdapters = new CategoryListItemsAdapter(arrayList, getActivity());
recyclerView.setAdapter(shopListRvAdapters);
shopListRvAdapters.notifyDataSetChanged();
}
}
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
});
int socketTimeout = 30000;//30 seconds - change to what you want
RetryPolicy policy = new DefaultRetryPolicy(socketTimeout, DefaultRetryPolicy.DEFAULT_MAX_RETRIES, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT);
jsonObjectRequest.setRetryPolicy(policy);
AppController.getInstance().addToRequestQueue(jsonObjectRequest);
shopDetailsJsonUrl = baseshopDetailsJsonUrl;
}
}
My problem is that, the tabs are showing strange behaviors. I know that the logic to fetch the category lists is correct. But I think there is problem in the state of the fragment. When i switch the tabs, the data loaded in the tabs are sometimes duplicated and even the data are loaded twice sometimes. Any suggestions are appreciated as im facing the problem for couple of days. I want to know the easy way to load the data in the tabs.

Try below code if it helps:
public class ShopDetailsTabsFragment extends Fragment {
RecyclerView recyclerView;
boolean isViewShown = false;
CategoryListItemsAdapter shopListRvAdapters;
private String shopDetailsJsonUrl = "http://allmartapp.com/appapi/json/get_shop_details_by_shop_id/";
private String baseshopDetailsJsonUrl = "http://allmartapp.com/appapi/json/get_shop_details_by_shop_id/";
ArrayList<CategoryItemsListModel> arrayList = new ArrayList<>();
static int catid = 0;
int shopId;
public ShopDetailsTabsFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View v = inflater.inflate(R.layout.fragment_shop_details_tabs, container, false);
recyclerView = (RecyclerView) v.findViewById(R.id.rv);
recyclerView.setLayoutManager(new GridLayoutManager(getActivity(), 2));
SharedPreferences sharedPreferences = getActivity().getSharedPreferences("SHOPID", Context.MODE_PRIVATE);
shopId = sharedPreferences.getInt("shopid", 0);
shopListRvAdapters = new CategoryListItemsAdapter(arrayList, getActivity());
recyclerView.setAdapter(shopListRvAdapters);
return v;
}
#Override
public void setUserVisibleHint(boolean isVisibleToUser) {
super.setUserVisibleHint(isVisibleToUser);
if (getView() != null) {
isViewShown = true;
getShopCat();
// fetchdata() contains logic to show data when page is selected mostly asynctask to fill the data
} else {
isViewShown = false;
}
}
public static void sgetid(int cat) {
catid = cat;
}
private void getShopCat() {
recyclerView.setAdapter(null);
shopDetailsJsonUrl += shopId;
arrayList.clear();
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(shopDetailsJsonUrl, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
Log.d("JSON", response.toString());
try {
JSONArray categoryArray = response.getJSONArray("category");
if(arrayList!=null){
if(arrayList.size()>0)
arrayList.clear();
}
for (int i = 0; i < categoryArray.length(); i++) {
JSONObject catObj = categoryArray.getJSONObject(i);
int category_id = catObj.getInt("category_id");
if (category_id == catid) {
JSONArray productArray = catObj.getJSONArray("product");
for (int j = 0; j < productArray.length(); j++) {
JSONObject productObj = productArray.getJSONObject(j);
String name = productObj.getString("product_name");
String image = productObj.getString("image_name");
int id = productObj.getInt("product_id");
int price = productObj.getInt("product_id");
arrayList.add(new CategoryItemsListModel(id, image, name, price));
}
shopListRvAdapters.notifyDataSetChanged();
}
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
});
int socketTimeout = 30000;//30 seconds - change to what you want
RetryPolicy policy = new DefaultRetryPolicy(socketTimeout, DefaultRetryPolicy.DEFAULT_MAX_RETRIES, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT);
jsonObjectRequest.setRetryPolicy(policy);
AppController.getInstance().addToRequestQueue(jsonObjectRequest);
shopDetailsJsonUrl = baseshopDetailsJsonUrl;
}

arraylist is empty after adding values

When I execute the program, it shows a blank screen and in logcat it shows no adapter attached; skipping layout. When I debug the code the ArrayList is not getting the value (returning 0).
public class MainActivity extends AppCompatActivity implements Constants, NetworkOperation, URL {
LinearLayoutManager manager;
ArrayList<OfferModal> bestoffers;
RecyclerViewAdapter adapter;
RecyclerView rv;
FetchData fetchData;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
rv = (RecyclerView) findViewById(R.id.recyclerview1);
fetchData = new FetchData(this, this, CLOUD_SECTION);
fetchData.fromServer();
manager = new LinearLayoutManager(getApplicationContext(), LinearLayoutManager.VERTICAL, false);
rv.setLayoutManager(new LinearLayoutManager(this));
}
#Override
public void started() {
}
#Override
public void doingBackground() {
}
#Override
public void completed(JSONObject jsonObject) {
bestoffers = new ArrayList<OfferModal>();
try {
JSONArray array_item = new JSONArray();
for (int i = 0; i < array_item.length(); i++) {
JSONObject itemobj = array_item.getJSONObject(i);
String id = itemobj.getString(ID);
String le_id = itemobj.getString(LE_ID);
String title = itemobj.getString(TITLE);
String description = itemobj.getString(DESCRIPTION);
String wid = itemobj.getString(WID);
String hgt = itemobj.getString(HGT);
String tn_path = itemobj.getString(TN_PATH);
String create_time = itemobj.getString(CREATE_TIME);
String update_time = itemobj.getString(UPDATE_TIME);
String view_count = itemobj.getString(VIEW_COUNT);
String slide_count = itemobj.getString(SLIDE_COUNT);
String shared = itemobj.getString(SHARED);
String publish_ver = itemobj.getString(PUBLISH_VER);
String publish_time = itemobj.getString(PUBLISH_TIME);
String user_name = itemobj.getString(USER_NAME);
String avatar_path = itemobj.getString(AVATAR_PATH);
String comment_count = itemobj.getString(COMMENT_COUNT);
String fav = itemobj.getString(FAV);
String fav_count = itemobj.getString(FAV_COUNT);
OfferModal off = new OfferModal(id, le_id, title, description, wid, hgt, tn_path, create_time, update_time, view_count, slide_count, shared, publish_ver, publish_time, user_name, avatar_path, comment_count, fav, fav_count);
off.setId(id);
off.setId(le_id);
off.setTitle(title);
off.setDescription(description);
off.setHgt(hgt);
off.setTn_path(tn_path);
off.setCreate_time(create_time);
off.setUpdate_time(update_time);
off.setView_count(view_count);
off.setSlide_count(slide_count);
off.setShared(shared);
off.setPublish_ver(publish_ver);
off.setPublish_time(publish_time);
off.setUser_name(user_name);
off.setAvatar_path(avatar_path);
off.setComment_count(comment_count);
off.setFav(fav);
off.setFav_count(fav_count);
bestoffers.add(off);
}
} catch (JSONException e) {
e.printStackTrace();
}
adapter = new RecyclerViewAdapter(getApplicationContext(), bestoffers);
rv.setAdapter(adapter);
}
}
This is my json data:
[
{
"id": "42057",
"le_id": "568fb0d29a5eb",
"title": "Bag the Big Deal Lulu Hypermarket",
"description": "",
"wid": "0",
"hgt": "0",
"tn_path": "",
"create_time": "1452257490",
"update_time": "1452332748",
"view_count": "00000000669",
"slide_count": "9",
"shared": "F",
"publish_ver": "11",
"publish_time": "1452332761",
"user_name": " Lulu Retail",
"avatar_path": null,
"comment_count": "0",
"fav": "F",
"fav_count": 0
},
{
"id": "42019",
"le_id": "568f9e45625da",
"title": "Bag the Big Deal Lulu Fashion Store",
"description": "",
"wid": "0",
"hgt": "0",
"tn_path": "",
"create_time": "1452252741",
"update_time": "1452584969",
"view_count": "00000000659",
"slide_count": "1",
"shared": "F",
"publish_ver": "5",
"publish_time": "1452584972",
"user_name": " Lulu Retail",
"avatar_path": null,
"comment_count": "0",
"fav": "F",
"fav_count": 0
},
{
"id": "42017",
"le_id": "568f9e30df0da",
"title": "Bag the Big Deal Lulu Connect",
"description": "",
"wid": "0",
"hgt": "0",
"tn_path": "",
"create_time": "1452252720",
"update_time": "1452585162",
"view_count": "00000000726",
"slide_count": "7",
"shared": "F",
"publish_ver": "7",
"publish_time": "1452275301",
"user_name": " Lulu Retail",
"avatar_path": null,
"comment_count": "0",
"fav": "F",
"fav_count": 0
}
]
This is my adapter class:
public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewHolder> {
ArrayList<OfferModal> mBestoffers;
Context context;
// List<Offers>card_items;
RequestQueue mRequestQueue;
ImageLoader mImageLoader;
public RecyclerViewAdapter(Context context, ArrayList<OfferModal> mBestoffers) {
this.context = context;
// this.card_items = card_items;
this.mBestoffers = mBestoffers;
mRequestQueue = Volley.newRequestQueue(context);
mImageLoader = new ImageLoader(mRequestQueue, new ImageLoader.ImageCache() {
private final LruCache<String, Bitmap> mCache = new LruCache<String, Bitmap>(10);
public void putBitmap(String url, Bitmap bitmap) {
mCache.put(url, bitmap);
}
public Bitmap getBitmap(String url) {
return mCache.get(url);
}
});
}
#Override
public RecyclerViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.cardlayout, null);
RecyclerViewHolder rvh = new RecyclerViewHolder(view);
return rvh;
}
#Override
public void onBindViewHolder(RecyclerViewHolder holder, int position) {
// holder.imageView.setImageUrl(mBestoffers.get(position).getAvatar_path(), mImageLoader);
holder.tv1.setText(mBestoffers.get(position).getTitle());
//write code to download image and data from server and set here
}
#Override
public int getItemCount() {
return mBestoffers.size();
}
}
Please help me to solve this issue, any help will be greately appriciated.

Please paste jsonObject.toString() in completed().
Array empty reason is here.
JSONArray array_item = new JSONArray();
for (int i = 0; i < array_item.length(); i++) {

Please use this code it will help you.
public class MainActivity extends AppCompatActivity implements Constants, NetworkOperation, URL {
LinearLayoutManager manager;
ArrayList<OfferModal> bestoffers;
RecyclerViewAdapter adapter;
RecyclerView rv;
FetchData fetchData;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
rv = (RecyclerView) findViewById(R.id.recyclerview1);
fetchData = new FetchData(this, this, CLOUD_SECTION);
fetchData.fromServer();
manager = new LinearLayoutManager(getApplicationContext(), LinearLayoutManager.VERTICAL, false);
rv.setLayoutManager(new LinearLayoutManager(this));
}
#Override
public void started() {
}
#Override
public void doingBackground() {
}
#Override
public void completed(JSONObject jsonObject) {
bestoffers = new ArrayList<OfferModal>();
try {
JSONArray array_item = new JSONArray();
for (int i = 0; i < array_item.length(); i++) {
JSONObject itemobj = array_item.getJSONObject(i);
String id = itemobj.getString(ID);
String le_id = itemobj.getString(LE_ID);
String title = itemobj.getString(TITLE);
String description = itemobj.getString(DESCRIPTION);
String wid = itemobj.getString(WID);
String hgt = itemobj.getString(HGT);
String tn_path = itemobj.getString(TN_PATH);
String create_time = itemobj.getString(CREATE_TIME);
String update_time = itemobj.getString(UPDATE_TIME);
String view_count = itemobj.getString(VIEW_COUNT);
String slide_count = itemobj.getString(SLIDE_COUNT);
String shared = itemobj.getString(SHARED);
String publish_ver = itemobj.getString(PUBLISH_VER);
String publish_time = itemobj.getString(PUBLISH_TIME);
String user_name = itemobj.getString(USER_NAME);
String avatar_path = itemobj.getString(AVATAR_PATH);
String comment_count = itemobj.getString(COMMENT_COUNT);
String fav = itemobj.getString(FAV);
String fav_count = itemobj.getString(FAV_COUNT);
OfferModal off = new OfferModal(id, le_id, title, description, wid, hgt, tn_path, create_time, update_time, view_count, slide_count, shared, publish_ver, publish_time, user_name, avatar_path, comment_count, fav, fav_count);
off.setId(id);
off.setId(le_id);
off.setTitle(title);
off.setDescription(description);
off.setHgt(hgt);
off.setTn_path(tn_path);
off.setCreate_time(create_time);
off.setUpdate_time(update_time);
off.setView_count(view_count);
off.setSlide_count(slide_count);
off.setShared(shared);
off.setPublish_ver(publish_ver);
off.setPublish_time(publish_time);
off.setUser_name(user_name);
off.setAvatar_path(avatar_path);
off.setComment_count(comment_count);
off.setFav(fav);
off.setFav_count(fav_count);
bestoffers.add(off);
}
} catch (JSONException e) {
e.printStackTrace();
}
adapter = new RecyclerViewAdapter(MainActivity.this,R.layout.cardlayout, bestoffers);
rv.setAdapter(adapter);
adapter.notifyDataSetChanged()
}
}

Your main problem lies in the JSONArray, you are initialising to a new JSONArray, which is empty, please check what is the size of the array in the jsonArray.length(); I'm sure it is 0. That is why your arraylist is also empty.

Can't use Volley to display two custom ListView

I am a beginner in android, and i am trying to use Volley to create a custom list which contains list of images and text description for each. There are two activities as list view, downloaded json data using volley, use OnItemClickListener to start other activity. the first activity is complete to run, when i click the other one, the Logcat got nothing to show, but the second Listview activity is blank only have title...
This is Logcat i don't it has usefully or not.
All my Logcat
05-22 16:09:32.549: V/Monotype(14980): SetAppTypeFace- try to flip, app = com.wangjian.klmeet_sightseeing
05-22 16:09:32.550: V/Monotype(14980): Typeface getFontPathFlipFont - systemFont = default
05-22 16:09:33.378: D/Volley(14980): [1] 2.onErrorResponse: MainActivity
my code look like this:
The first activity SightseeingActivity.java
public class SightseeingActivity extends Activity {
//Log tag
private static final String TAG = SightseeingActivity.class.getSimpleName();
//Sightseeing json url
private static final String url = "http://wangjian.site90.net/json/api_klmeet_sightseeing.json";
private ProgressDialog pDialog;
private List<Sight> sightList = new ArrayList<Sight>();
private ListView listView;
private CustomListAdapter adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.sightseeing_activity);
listView = (ListView) findViewById(R.id.sight_list);
adapter = new CustomListAdapter(this, sightList);
listView.setAdapter(adapter);
pDialog = new ProgressDialog(this);
// Showing progress dialog before making http request
pDialog.setMessage("Loading...");
pDialog.show();
//changing action bar color
getActionBar().setBackgroundDrawable(new ColorDrawable(Color.parseColor("#1b1b1b")));
//Creating volley request obj
JsonArrayRequest sightReq = new JsonArrayRequest(url,new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response){
Log.d(TAG, response.toString());
pDialog.dismiss();
for (int i = 0; i < response.length(); i++){
try{
JSONObject obj = response.getJSONObject(i);
Sight sight = new Sight();
sight.setTitle(obj.getString("title"));
sight.setThumbnailUrl(obj.getString("image"));
sight.setReadmore(obj.getString("readmore"));
sight.setPreintroduce(obj.getString("preintroduce"));
sight.setTag(obj.getString("tag"));
sightList.add(sight);
} catch (JSONException e) {
e.printStackTrace();
}
}
//notifying list adapter about data changes
//so that it renders the list view with updated data
adapter.notifyDataSetChanged();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error){
VolleyLog.d(TAG, "Error: " + error.getMessage());
}
});
// Adding request to request queue
AppController.getInstance().addToRequestQueue(sightReq);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Class<? extends Activity> activityToSrart = null;
switch (position){
case 0:
activityToSrart = MainActivity.class;
break;
case 1:
activityToSrart = MerdekaSquare.class;
break;
}
Intent i = new Intent(getApplicationContext(), activityToSrart);
startActivity(i);
}
});
}
}
The second activity MainActivity
public class MainActivity extends Activity {
private static final String TAG = MainActivity.class.getSimpleName();
private ListView listView;
private FeedListAdapter listAdapter;
private List<FeedItem> feedItems;
private String URL_FEED = "http://wangjian.site90.net/json/api_klmeet_sightseeing_face.json";
#SuppressLint("NewApi")
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listView = (ListView) findViewById(R.id.list);
feedItems = new ArrayList<FeedItem>();
listAdapter = new FeedListAdapter(this, feedItems);
listView.setAdapter(listAdapter);
// These two lines not needed,
// just to get the look of facebook (changing background color & hiding the icon)
getActionBar().setBackgroundDrawable(new ColorDrawable(Color.parseColor("#3b5998")));
getActionBar().setIcon(
new ColorDrawable(getResources().getColor(android.R.color.transparent)));
// We first check for cached request
Cache cache = AppController.getInstance().getRequestQueue().getCache();
Entry entry = cache.get(URL_FEED);
if (entry != null) {
// fetch the data from cache
try {
String data = new String(entry.data, "UTF-8");
try {
parseJsonFeed(new JSONObject(data));
} catch (JSONException e) {
e.printStackTrace();
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
} else {
// making fresh volley request and getting json
JsonObjectRequest jsonReq = new JsonObjectRequest(Method.GET,
URL_FEED, null, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
VolleyLog.d(TAG, "Response: " + response.toString());
if (response != null) {
parseJsonFeed(response);
}
}
}, new Response.ErrorListener() {
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "Error: " + error.getMessage());
}
});
// Adding request to volley request queue
AppController.getInstance().addToRequestQueue(jsonReq);
}
}
/**
* Parsing json reponse and passing the data to feed view list adapter
* */
private void parseJsonFeed(JSONObject response) {
try {
JSONArray feedArray = response.getJSONArray("feed");
for (int i = 0; i < feedArray.length(); i++) {
JSONObject feedObj = (JSONObject) feedArray.get(i);
FeedItem item = new FeedItem();
item.setId(feedObj.getInt("id"));
item.setName(feedObj.getString("name"));
// Image might be null sometimes
String image = feedObj.isNull("image") ? null : feedObj
.getString("image");
item.setImge(image);
item.setStatus(feedObj.getString("status"));
item.setProfilePic(feedObj.getString("profilePic"));
item.setTimeStamp(feedObj.getString("timeStamp"));
// url might be null sometimes
String feedUrl = feedObj.isNull("url") ? null : feedObj
.getString("url");
item.setUrl(feedUrl);
feedItems.add(item);
}
// notify data changes to list adapater
listAdapter.notifyDataSetChanged();
} catch (JSONException e) {
e.printStackTrace();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
i will upload more code if needed.
FeedListAdapter.java
#SuppressLint("InflateParams")
public class FeedListAdapter extends BaseAdapter {
private Activity activity;
private LayoutInflater inflater;
private List<FeedItem> feedItems;
ImageLoader imageLoader = AppController.getInstance().getImageLoader();
public FeedListAdapter(Activity activity, List<FeedItem> feedItems) {
this.activity = activity;
this.feedItems = feedItems;
}
#Override
public int getCount() {
return feedItems.size();
}
#Override
public Object getItem(int location) {
return feedItems.get(location);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
if (inflater == null)
inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null)
convertView = inflater.inflate(R.layout.feed_item, null);
if (imageLoader == null)
imageLoader = AppController.getInstance().getImageLoader();
TextView name = (TextView) convertView.findViewById(R.id.name);
TextView timestamp = (TextView) convertView
.findViewById(R.id.timestamp);
TextView statusMsg = (TextView) convertView
.findViewById(R.id.txtStatusMsg);
TextView url = (TextView) convertView.findViewById(R.id.txtUrl);
NetworkImageView profilePic = (NetworkImageView) convertView
.findViewById(R.id.profilePic);
FeedImageView feedImageView = (FeedImageView) convertView
.findViewById(R.id.feedImage1);
FeedItem item = feedItems.get(position);
name.setText(item.getName());
// Converting timestamp into x ago format
CharSequence timeAgo = DateUtils.getRelativeTimeSpanString(
Long.parseLong(item.getTimeStamp()),
System.currentTimeMillis(), DateUtils.SECOND_IN_MILLIS);
timestamp.setText(timeAgo);
// Chcek for empty status message
if (!TextUtils.isEmpty(item.getStatus())) {
statusMsg.setText(item.getStatus());
statusMsg.setVisibility(View.VISIBLE);
} else {
// status is empty, remove from view
statusMsg.setVisibility(View.GONE);
}
// Checking for null feed url
if (item.getUrl() != null) {
url.setText(Html.fromHtml("<a href=\"" + item.getUrl() + "\">"
+ item.getUrl() + "</a> "));
// Making url clickable
url.setMovementMethod(LinkMovementMethod.getInstance());
url.setVisibility(View.VISIBLE);
} else {
// url is null, remove from the view
url.setVisibility(View.GONE);
}
// user profile pic
profilePic.setImageUrl(item.getProfilePic(), imageLoader);
// Feed image
if (item.getImge() != null) {
feedImageView.setImageUrl(item.getImge(), imageLoader);
feedImageView.setVisibility(View.VISIBLE);
feedImageView
.setResponseObserver(new FeedImageView.ResponseObserver() {
#Override
public void onError() {
}
#Override
public void onSuccess() {
}
});
} else {
feedImageView.setVisibility(View.GONE);
}
return convertView;
}
}
FeedIteam
package com.wangjian.klmeet_sightseeing.model;
public class FeedItem {
private int id;
private String name, status, image, profilePic, timeStamp, url;
public FeedItem() {
}
public FeedItem(int id, String name, String image, String status,
String profilePic, String timeStamp, String url) {
super();
this.id = id;
this.name = name;
this.image = image;
this.status = status;
this.profilePic = profilePic;
this.timeStamp = timeStamp;
this.url = url;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getImge() {
return image;
}
public void setImge(String image) {
this.image = image;
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
public String getProfilePic() {
return profilePic;
}
public void setProfilePic(String profilePic) {
this.profilePic = profilePic;
}
public String getTimeStamp() {
return timeStamp;
}
public void setTimeStamp(String timeStamp) {
this.timeStamp = timeStamp;
}
public String getUrl() {
return url;
}
public void setUrl(String url) {
this.url = url;
}
}
i upload XML file if needed
feed_item.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/feed_bg"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginLeft="#dimen/feed_item_margin"
android:layout_marginRight="#dimen/feed_item_margin"
android:layout_marginTop="#dimen/feed_item_margin"
android:background="#drawable/bg_parent_rounded_corner"
android:orientation="vertical"
android:paddingBottom="#dimen/feed_item_padding_top_bottom"
android:paddingTop="#dimen/feed_item_padding_top_bottom" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingLeft="#dimen/feed_item_padding_left_right"
android:paddingRight="#dimen/feed_item_padding_left_right" >
<com.android.volley.toolbox.NetworkImageView
android:id="#+id/profilePic"
android:layout_width="#dimen/feed_item_profile_pic"
android:layout_height="#dimen/feed_item_profile_pic"
android:scaleType="fitCenter" >
</com.android.volley.toolbox.NetworkImageView>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingLeft="#dimen/feed_item_profile_info_padd" >
<TextView
android:id="#+id/name"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="#dimen/feed_item_profile_name"
android:textStyle="bold" />
<TextView
android:id="#+id/timestamp"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textColor="#color/timestamp"
android:textSize="#dimen/feed_item_timestamp" />
</LinearLayout>
</LinearLayout>
<TextView
android:id="#+id/txtStatusMsg"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingBottom="5dp"
android:paddingLeft="#dimen/feed_item_status_pad_left_right"
android:paddingRight="#dimen/feed_item_status_pad_left_right"
android:paddingTop="#dimen/feed_item_status_pad_top" />
<TextView
android:id="#+id/txtUrl"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:linksClickable="true"
android:paddingBottom="10dp"
android:paddingLeft="#dimen/feed_item_status_pad_left_right"
android:paddingRight="#dimen/feed_item_status_pad_left_right"
android:textColorLink="#color/link" />
<info.androidhive.listviewfeed.FeedImageView
android:id="#+id/feedImage1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/white"
android:scaleType="fitXY"
android:visibility="visible" />
</LinearLayout>
</LinearLayout>
This is my first activity
the second one should be like this
But
JSON
{
"feed": [
{
"id": 1,
"name": "National Geographic Channel",
"image": "http://api.androidhive.info/feed/img/cosmos.jpg",
"status": "\"Science is a beautiful and emotional human endeavor,\" says Brannon Braga, executive producer and director. \"And Cosmos is all about making science an experience.\"",
"profilePic": "http://wangjian.site90.net/json/klcc.jpg",
"timeStamp": "1403375851930",
"url": null
},
{
"id": 2,
"name": "TIME",
"image": "http://api.androidhive.info/feed/img/time_best.jpg",
"status": "30 years of Cirque du Soleil's best photos",
"profilePic": "http://wangjian.site90.net/json/klcc.jpg,
"timeStamp": "1403375851930",
"url": "http://ti.me/1qW8MLB"
},
{
"id": 5,
"name": "Abraham Lincoln",
"image": null,
"status": "That some achieve great success, is proof to all that others can achieve it as well",
"profilePic": "http://wangjian.site90.net/json/klcc.jpg",
"timeStamp": "1403375851930",
"url": null
},
{
"id": 3,
"name": "Discovery",
"image": "http://api.androidhive.info/feed/img/discovery_mos.jpg",
"status": "A team of Austrian scientists has developed a laser system that causes fruit flies to dance.",
"profilePic": "http://wangjian.site90.net/json/klcc.jpg",
"timeStamp": "1403375851930",
"url": "http://dsc.tv/xmMxD"
},
{
"id": 4,
"name": "Ravi Tamada",
"image": "http://api.androidhive.info/feed/img/nav_drawer.jpg",
"status": "Android Sliding Menu using Navigation Drawer",
"profilePic": "http://wangjian.site90.net/json/klcc.jpg",
"timeStamp": "1403375851930",
"url": "http://www.androidhive.info/2013/11/android-sliding-menu-using-navigation-drawer/"
},
{
"id": 6,
"name": "KTM",
"image": "http://api.androidhive.info/feed/img/ktm_1290.jpg",
"status": "\"The Beast\" KTM 1290 Super Duke",
"profilePic": "http://wangjian.site90.net/json/klcc.jpg",
"timeStamp": "1403375851930",
"url": ""
},
{
"id": 7,
"name": "Harley-Davidson",
"image": "http://api.androidhive.info/feed/img/harley_bike.jpg",
"status": "We’re assembling riders of every style, bike, and passion. If you ride with conviction, ride with us. You have 24 days to get ready for World Ride. Prepare by visiting:",
"profilePic": "http://wangjian.site90.net/json/klcc.jpg",
"timeStamp": "1403375851930",
"url": "http://bit.ly/1wmBWaN"
},
{
"id": 8,
"name": "Rock & Girl",
"image": "http://api.androidhive.info/feed/img/rock.jpg",
"status": "A long time back...",
"profilePic": "http://wangjian.site90.net/json/klcc.jpg",
"timeStamp": "1403375851930",
"url": ""
},
{
"id": 8,
"name": "Gandhi",
"image": null,
"status": "An eye for an eye will make the whole world blind.",
"profilePic": "http://wangjian.site90.net/json/klcc.jpg",
"timeStamp": "1403375851930",
"url": ""
},
{
"id": 9,
"name": "LIFE",
"image": "http://api.androidhive.info/feed/img/life_photo.jpg",
"status": "In 1965, LIFE photographer Bill Ray spent weeks with the Hells Angels, but his amazing photos never ran in the magazine",
"profilePic": "http://wangjian.site90.net/json/klcc.jpg",
"timeStamp": "1403375851930",
"url": "http://ti.me/1rfcQa4"
},
{
"id": 10,
"name": "Shakira",
"image": "http://api.androidhive.info/feed/img/shakira_la_la.png",
"status": "Download La La La (Brazil 2014) from iTunes:",
"profilePic": "http://wangjian.site90.net/json/klcc.jpg",
"timeStamp": "1403375851930",
"url": "http://smarturl.it/FWCalbum?IQid=sh"
},
{
"id": 11,
"name": "A. R. rahman",
"image": "http://api.androidhive.info/feed/img/ar_bw.jpg",
"status": "",
"profilePic": "http://wangjian.site90.net/json/klcc.jpg",
"timeStamp": "1403375851930",
"url": ""
}
]
}
I'm a newbie at this stuff so any help will be appreciated. Thanks in Advance.!

Firstly, private String URL_FEED = "http://wangjian.site90.net/json/api_klmeet_sightseeing_face.json"; in your MainActivity doesn't exist and when I tried it in AdvanceRestClient I got this:
So I tried looking more into directory structure of your WS and found there isn't any such URL you have mentioned as above.
Further more, I got security issues while trying to access your directory:
I am not sure what you are looking for seriously, but you could try with a valid URL in MainActivity and it should work fine.
Security issue creep me out literaly. :(