Issue with ArrayList from JSON using Retrofit and populating RecyclerView

Issue with ArrayList from JSON using Retrofit and populating RecyclerView - java

I’ve been trying to get recycler view working with retrofit. I seem to be pulling in the JSON fine from within getRecipes() method, and my logs are showing me that the some data is there.
However, when I call my getRecipes() method from onCreate(), something seems to be going wrong. When I check to see if my recipeList array contains my JSON results within onCreate, it is telling me it is empty. Why is it doing this if my logs within my getRecipes() method are showing me that data is there...?
Not sure if it is an issue with my recycler view or what I am doing with retrofit, or something else. Been trying for days to figure out, so any advice would be greatly appreciated.
JSON
https://d17h27t6h515a5.cloudfront.net/topher/2017/May/59121517_baking/baking.json
public class ItemListActivity extends AppCompatActivity {
private boolean mTwoPane;
public static final String LOG_TAG = "myLogs";
public static List<Recipe> recipeList = new ArrayList<>();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getRecipes();
setContentView(R.layout.activity_item_list);
getRecipes();
//Logging to check that recipeList contains data
if(recipeList.isEmpty()){
Log.d(LOG_TAG, "Is empty");
}else {
Log.d(LOG_TAG, "Is not empty");
}
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
toolbar.setTitle(getTitle());
RecyclerView recyclerView = (RecyclerView) findViewById(R.id.item_list);
RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);
SimpleItemRecyclerViewAdapter simpleItemRecyclerViewAdapter = new SimpleItemRecyclerViewAdapter(recipeList);
recyclerView.setAdapter(simpleItemRecyclerViewAdapter);
if (findViewById(R.id.item_detail_container) != null) {
mTwoPane = true;
}
}
public void getRecipes(){
String ROOT_URL = "https://d17h27t6h515a5.cloudfront.net/topher/2017/May/59121517_baking/";
Retrofit RETROFIT = new Retrofit.Builder()
.baseUrl(ROOT_URL)
.addConverterFactory(GsonConverterFactory.create())
.build();
RecipeService service = RETROFIT.create(RecipeService.class);
Call<List<Recipe>> call = service.getMyJson();
call.enqueue(new Callback<List<Recipe>>() {
#Override
public void onResponse(Call<List<Recipe>> call, Response<List<Recipe>> response) {
Log.d(LOG_TAG, "Got here");
if (!response.isSuccessful()) {
Log.d(LOG_TAG, "No Success");
}
Log.d(LOG_TAG, "Got here");
recipeList = response.body();
//Logging to check data is there
Log.v(LOG_TAG, "LOGS" + recipeList.size());
for (int i = 0; i < recipeList.size(); i++) {
String newString = recipeList.get(i).getName();
Ingredients[] ingredients = recipeList.get(i).getIngredients();
for(int j = 0; j < ingredients.length; j++){
Log.d(LOG_TAG, ingredients[j].getIngredient());
}
Steps[] steps = recipeList.get(i).getSteps();
for(int k = 0; k < steps.length; k++){
Log.d(LOG_TAG, steps[k].getDescription());
}
Log.d(LOG_TAG, newString);
}
}
#Override
public void onFailure(Call<List<Recipe>> call, Throwable t) {
Log.e("getRecipes throwable: ", t.getMessage());
t.printStackTrace();
}
});
}
public class SimpleItemRecyclerViewAdapter
extends RecyclerView.Adapter<SimpleItemRecyclerViewAdapter.ViewHolder> {
private final List<Recipe> mValues;
public SimpleItemRecyclerViewAdapter(List<Recipe> items) {
mValues = items;
}
#Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.item_list_content, parent, false);
return new ViewHolder(view);
}
#Override
public void onBindViewHolder(final ViewHolder holder, int position) {
holder.mItem = mValues.get(position);
holder.mContentView.setText(mValues.get(position).getName());
holder.mView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (mTwoPane) {
Bundle arguments = new Bundle();
arguments.putString(ItemDetailFragment.ARG_ITEM_ID, holder.mItem.getId());
ItemDetailFragment fragment = new ItemDetailFragment();
fragment.setArguments(arguments);
getSupportFragmentManager().beginTransaction()
.replace(R.id.item_detail_container, fragment)
.commit();
} else {
Context context = v.getContext();
Intent intent = new Intent(context, ItemDetailActivity.class);
intent.putExtra(ItemDetailFragment.ARG_ITEM_ID, holder.mItem.getId());
context.startActivity(intent);
}
}
});
}
#Override
public int getItemCount() {
return mValues.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
public View mView;
public TextView mContentView;
public Recipe mItem;
public ViewHolder(View view) {
super(view);
mView = view;
mContentView = (TextView) view.findViewById(R.id.content);
}
#Override
public String toString() {
return super.toString() + " '" + mContentView.getText() + "'";
}
}
}
RecipeService
public interface RecipeService {
#GET("baking.json")
Call<List<Recipe>> getMyJson();}
Models
Recipe
public class Recipe{
private Ingredients[] ingredients;
private String id;
private String servings;
private String name;
private String image;
private Steps[] steps;
public Ingredients[] getIngredients ()
{
return ingredients;
}
public void setIngredients (Ingredients[] ingredients)
{
this.ingredients = ingredients;
}
public String getId ()
{
return id;
}
public void setId (String id)
{
this.id = id;
}
public String getServings ()
{
return servings;
}
public void setServings (String servings)
{
this.servings = servings;
}
public String getName ()
{
return name;
}
public void setName (String name)
{
this.name = name;
}
public String getImage ()
{
return image;
}
public void setImage (String image)
{
this.image = image;
}
public Steps[] getSteps ()
{
return steps;
}
public void setSteps (Steps[] steps)
{
this.steps = steps;
}
#Override
public String toString()
{
return "[ingredients = "+ingredients+", id = "+id+", servings = "+servings+", name = "+name+", image = "+image+", steps = "+steps+"]";
}}
Ingredients
public class Ingredients{
private String measure;
private String ingredient;
private String quantity;
public String getMeasure ()
{
return measure;
}
public void setMeasure (String measure)
{
this.measure = measure;
}
public String getIngredient ()
{
return ingredient;
}
public void setIngredient (String ingredient)
{
this.ingredient = ingredient;
}
public String getQuantity ()
{
return quantity;
}
public void setQuantity (String quantity)
{
this.quantity = quantity;
}
#Override
public String toString()
{
return "[measure = "+measure+", ingredient = "+ingredient+", quantity = "+quantity+"]";
}}
Steps
public class Steps{
private String id;
private String shortDescription;
private String description;
private String videoURL;
private String thumbnailURL;
public String getId ()
{
return id;
}
public void setId (String id)
{
this.id = id;
}
public String getShortDescription ()
{
return shortDescription;
}
public void setShortDescription (String shortDescription)
{
this.shortDescription = shortDescription;
}
public String getDescription ()
{
return description;
}
public void setDescription (String description)
{
this.description = description;
}
public String getVideoURL ()
{
return videoURL;
}
public void setVideoURL (String videoURL)
{
this.videoURL = videoURL;
}
public String getThumbnailURL ()
{
return thumbnailURL;
}
public void setThumbnailURL (String thumbnailURL)
{
this.thumbnailURL = thumbnailURL;
}
#Override
public String toString()
{
return "[id = "+id+", shortDescription = "+shortDescription+", description = "+description+", videoURL = "+videoURL+", thumbnailURL = "+thumbnailURL+"]";
}}
Logs
https://gist.github.com/2triggers/12b6eeb32ed8909ab50bbadd4742d7f7

this will be empty always because this line will execute before getting the response from a server.
if(recipeList.isEmpty()){
Log.d(LOG_TAG, "Is empty");
}else {
Log.d(LOG_TAG, "Is not empty");
}
Better call this after this line recipeList = response.body();
SimpleItemRecyclerViewAdapter simpleItemRecyclerViewAdapter = new SimpleItemRecyclerViewAdapter(recipeList);
recyclerView.setAdapter(simpleItemRecyclerViewAdapter);
if (findViewById(R.id.item_detail_container) != null) {
mTwoPane = true;
}

it is because you are sending the recipelist into the adapter before even it is populated , after you are sending the recipelist into the adapter which is empty you are populating your recipelist from getRecipes method, you might be wondering you have declared the getRecipes method before even you are assigning the recipelist to adapter so how come it is empty, yea but the fact is your getRecipes work on background thread so even before your recipelist gets populated your adapter assignment takes place on the main thread so you are basically assigning the empty list, one thing you can do is notify when the adapter when the data changes or when the the recipelist is filled with data that is from within the getRecipe method.
when you assign the recipelist = response.body right after this you can notify the adapter
or move this two lines
SimpleItemRecyclerViewAdapter simpleItemRecyclerViewAdapter = new SimpleItemRecyclerViewAdapter(recipeList);
recyclerView.setAdapter(simpleItemRecyclerViewAdapter);
right after the
recipelist = response.body;
in getRecipes method

Try create the Constructor with all atributes from your Recipe.class
Like:
public Ingredients(String measure, String ingredients, String quantity ){
this.measure = measure;
this.ingredients = ingredients;
this.quantity = quantity
}
Do same in all class where make up your object of list.

Related

Passing data in recycler view from API

I tried to make a covid-19 tracking app by watching Youtube tutorials.
My app shows the country list with flags and when you click on any country it opens an activity and shows the details of that country i.e total cases, deaths, recovered, etc. The video on Youtube uses ListView and I am using recyclerView
I fetched the country list successfully and set onClickListener on the view and it opens second activity which shows the case in detail. But I don't know how to show the data.
my adapter class:
class Countries_adapter extends RecyclerView.Adapter<Countries_adapter.MyViewHolder> {
Context ct;
List<Countries_data> list;
public Countries_adapter(Context context,List<Countries_data> country)
{
ct=context;
list=country;
}
#Override
public MyViewHolder onCreateViewHolder( ViewGroup parent, int viewType) {
View v = LayoutInflater.from(ct).inflate(R.layout.countries_row,parent,false);
return new MyViewHolder(v);
}
#Override
public void onBindViewHolder(MyViewHolder holder, final int position) {
holder.tvCountryName.setText(list.get(position).getCountry());
holder.tvtotal.setText(list.get(position).getActive());
Glide.with(ct).load(list.get(position).getFlag()).into(holder.imageView);
holder.linearLayout.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent i = new Intent(ct,CountriesDetails.class);
i.putExtra("Country",list.get(position).getCountry());
ct.startActivity(i);
}
});
}
#Override
public int getItemCount() {
return list.size();
}
public class MyViewHolder extends RecyclerView.ViewHolder {
TextView tvCountryName,tvtotal;
ImageView imageView;
LinearLayout linearLayout;
public MyViewHolder( View itemView) {
super(itemView);
tvCountryName = itemView.findViewById(R.id.tvCountryName);
tvtotal=itemView.findViewById(R.id.tvCountrytotalcaese);
imageView = itemView.findViewById(R.id.imageFlag);
linearLayout=itemView.findViewById(R.id.linear_layout);
}
}
my AffectedCoutries class activity is as follows:
public class AffectedCountries extends AppCompatActivity {
EditText edtSearch;
RecyclerView recyclerView;
SimpleArcLoader simpleArcLoader;
public static ArrayList countryList = new ArrayList<>();
Countries_data countryData;
Countries_adapter CountriesAdapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_affected_countries);
edtSearch = findViewById(R.id.edtSearch);
recyclerView=findViewById(R.id.recyclerAffectedCountries);
simpleArcLoader = findViewById(R.id.loader);
fetchData();
}
private void fetchData() {
String url = "https://corona.lmao.ninja/v2/countries/";
simpleArcLoader.start();
StringRequest request = new StringRequest(Request.Method.GET, url,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
JSONArray jsonArray = new JSONArray(response);
for(int i=0;i<jsonArray.length();i++){
JSONObject jsonObject = jsonArray.getJSONObject(i);
String countryName = jsonObject.getString("country");
String cases = jsonObject.getString("cases");
String todayCases = jsonObject.getString("todayCases");
String deaths = jsonObject.getString("deaths");
String todayDeaths = jsonObject.getString("todayDeaths");
String recovered = jsonObject.getString("recovered");
String active = jsonObject.getString("active");
String critical = jsonObject.getString("critical");
JSONObject object = jsonObject.getJSONObject("countryInfo");
String flagUrl = object.getString("flag");
countryData = new Countries_data(flagUrl,countryName,cases,todayCases,deaths,todayDeaths,recovered,active,critical);
countryList.add(countryData);
}
CountriesAdapter = new Countries_adapter(AffectedCountries.this,countryList);
recyclerView.setLayoutManager(new LinearLayoutManager(AffectedCountries.this));
recyclerView.setAdapter(CountriesAdapter);
simpleArcLoader.stop();
simpleArcLoader.setVisibility(View.GONE);
} catch (JSONException e) {
e.printStackTrace();
simpleArcLoader.start();
simpleArcLoader.setVisibility(View.GONE);
Toast.makeText(AffectedCountries.this,"catch response", Toast.LENGTH_SHORT).show();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
simpleArcLoader.stop();
simpleArcLoader.setVisibility(View.GONE);
Toast.makeText(AffectedCountries.this,"error response", Toast.LENGTH_SHORT).show();
}
});
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(request);
}
}
my Countries_data class(model class)
public class Countries_data {
public String country;
public String cases;
public String todayCases;
public String deaths;
public String todayDeaths;
public String recovered;
public String active;
public String critical;
public String flag;
public Countries_data(String flag, String country, String cases, String
todayCases, String deaths, String todayDeaths, String recovered,
String active, String critical) {
this.country = country;
this.cases = cases;
this.todayCases = todayCases;
this.deaths = deaths;
this.todayDeaths = todayDeaths;
this.recovered = recovered;
this.active = active;
this.critical = critical;
this.flag = flag;
}
public String getCountry() {
return country;
}
public void setCountry(String country) {
this.country = country;
}
public String getCases() {
return cases;
}
public void setCases(String cases) {
this.cases = cases;
}
public String getTodayCases() {
return todayCases;
}
public void setTodayCases(String todayCases) {
this.todayCases = todayCases;
}
public String getDeaths() {
return deaths;
}
public void setDeaths(String deaths) {
this.deaths = deaths;
}
public String getTodayDeaths() {
return todayDeaths;
}
public void setTodayDeaths(String todayDeaths) {
this.todayDeaths = todayDeaths;
}
public String getRecovered() {
return recovered;
}
public void setRecovered(String recovered) {
this.recovered = recovered;
}
public String getActive() {
return active;
}
public void setActive(String active) {
this.active = active;
}
public String getCritical() {
return critical;
}
public void setCritical(String critical) {
this.critical = critical;
}
public String getFlag() {
return flag;
}
public void setFlag(String flag) {
this.flag = flag;
}
}
my Country_details class
public class CountriesDetails extends AppCompatActivity {
TextView tvCountry, tvCases, tvRecovered,tvdeaths;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_countries_details2);
tvCountry = findViewById(R.id.tvCountry);
tvCases = findViewById(R.id.tvCases);
tvRecovered = findViewById(R.id.tvRecovered);
tvdeaths=findViewById(R.id.tvTotalDeaths);
String positionCountry = getIntent().getStringExtra("Country");
Log.i("country name", positionCountry);
}
}
How to set the data in tvcases?
How can I show the data? Do I have to create a separate recycler view and then fetch the data from the API or can I use my main activity to show the data?

I have some sad information for you: Google Play policy restricts such apps from being published in store... especially when you are showing deaths count. Been there, done that, my app was blocked...
besides above:
you are passing country name in intent:
i.putExtra("Country",list.get(position).getCountry());
but trying to read "position" in details Activity - it will be always 0 (default)
edit due to comments:
pass position of clicked View
holder.linearLayout.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent i = new Intent(ct,CountriesDetails.class);
i.putExtra("position", position);
ct.startActivity(i);
}
});
in CountriesDetailss onCreate method receive this position and restore proper Countries_data object from your static countryList array in AffectedCountries
int position = getIntent().getIntExtra("position", 0);
Countries_data country = AffectedCountries.countryList.get(position);
tvCountry.setText(country.getCountry());
that should work, but this isn't best way to store data, in fact its very weak... after downloading data (list of countries) you should store it somehow, e.g. SQLite/Room lib or at least SharedPreferences... then in details activity you should restore int position and using it take proper object from database or preferences, instead of stright from static array
it may be also useful to implement Parcelable inteface to your Countries_data - this will allow to put whole Countries_data object into Intents extras, not only primitive int with position in array. in this case details activity won't even need access to whole array or sql database/preferences, it will get whole object straight from Intents extras

ListView is not showing all JSON data using Retrofit

I'm trying to get all the JSON result into my listview. I have successfully retrieved the data but it keeps only shows one data (example if JNE, only showing OKE result). I'm using Retrofit. Below is the example JSON data from the documentation that I want to show all in my listview. Please help me why it is not showing all the result. Thank you.
{
"rajaongkir":{
"query":{
"origin":"501",
"destination":"114",
"weight":1700,
"courier":"jne"
},
"status":{
"code":200,
"description":"OK"
},
"origin_details":{
"city_id":"501",
"province_id":"5",
"province":"DI Yogyakarta",
"type":"Kota",
"city_name":"Yogyakarta",
"postal_code":"55000"
},
"destination_details":{
"city_id":"114",
"province_id":"1",
"province":"Bali",
"type":"Kota",
"city_name":"Denpasar",
"postal_code":"80000"
},
"results":[
{
"code":"jne",
"name":"Jalur Nugraha Ekakurir (JNE)",
"costs":[
{
"service":"OKE",
"description":"Ongkos Kirim Ekonomis",
"cost":[
{
"value":38000,
"etd":"4-5",
"note":""
}
]
},
{
"service":"REG",
"description":"Layanan Reguler",
"cost":[
{
"value":44000,
"etd":"2-3",
"note":""
}
]
},
{
"service":"SPS",
"description":"Super Speed",
"cost":[
{
"value":349000,
"etd":"",
"note":""
}
]
},
{
"service":"YES",
"description":"Yakin Esok Sampai",
"cost":[
{
"value":98000,
"etd":"1-1",
"note":""
}
]
}
]
}
]
}
}
My Call
public void getCoast(String origin,
String destination,
String weight,
String courier) {
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(ApiUrl.URL_ROOT_HTTPS)
.addConverterFactory(GsonConverterFactory.create())
.build();
ApiService service = retrofit.create(ApiService.class);
Call<ItemCost> call = service.getCost(
"c5333cdcc37b3511c909088d99587fd8",
origin,
destination,
weight,
courier
);
call.enqueue(new Callback<ItemCost>() {
#Override
public void onResponse(Call<ItemCost> call, Response<ItemCost> response) {
Log.v("wow", "json : " + new Gson().toJson(response));
progressDialog.dismiss();
if (response.isSuccessful()) {
int statusCode = response.body().getRajaongkir().getStatus().getCode();
if (statusCode == 200) {
LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View alertLayout = inflater.inflate(R.layout.custom_results, null);
alert = new AlertDialog.Builder(MainActivity.this);
alert.setTitle("Result Cost");
alert.setMessage("this result your search");
alert.setView(alertLayout);
alert.setCancelable(true);
ad = alert.show();
String originCity = response.body().getRajaongkir().getOriginDetails().getCityName();
String originPostalCode = response.body().getRajaongkir().getOriginDetails().getPostalCode();
String destinationCity = response.body().getRajaongkir().getDestinationDetails().getCityName();
String destinationPostalCode = response.body().getRajaongkir().getDestinationDetails().getPostalCode();
//results
List<com.bagicode.cekongkir.model.cost.Result> ListResults = response.body().getRajaongkir().getResults();
//costs
List<com.bagicode.cekongkir.model.cost.Cost> ListCosts = response.body().getRajaongkir().getResults().get(0).getCosts();
//cost
List<com.bagicode.cekongkir.model.cost.Cost_> ListCost = response.body().getRajaongkir().getResults().get(0).getCosts().get(0).getCost();
mListView = (ListView) alertLayout.findViewById(R.id.listItem);
adapter_results = new ResultsAdapter(MainActivity.this, originCity, originPostalCode, destinationCity, destinationPostalCode, ListResults, ListCosts, ListCost);
mListView.setAdapter(adapter_results);
mListView.setClickable(true);
adapter_results.notifyDataSetChanged();
} else {
String message = response.body().getRajaongkir().getStatus().getDescription();
Toast.makeText(MainActivity.this, message, Toast.LENGTH_SHORT).show();
}
} else {
String error = "Error Retrive Data from Server !!!";
Toast.makeText(MainActivity.this, error, Toast.LENGTH_SHORT).show();
}
}
#Override
public void onFailure(Call<ItemCost> call, Throwable t) {
progressDialog.dismiss();
Toast.makeText(MainActivity.this, "Message : Error " + t.getMessage(), Toast.LENGTH_SHORT).show();
}
});
}
Api Interface
// Cost
#FormUrlEncoded
#POST("cost")
Call<ItemCost> getCost (#Field("key") String Token,
#Field("origin") String origin,
#Field("destination") String destination,
#Field("weight") String weight,
#Field("courier") String courier);
Pojo
ItemCost
public class ItemCost {
#SerializedName("rajaongkir")
#Expose
private Rajaongkir rajaongkir;
public Rajaongkir getRajaongkir() {
return rajaongkir;
}
public void setRajaongkir(Rajaongkir rajaongkir) {
this.rajaongkir = rajaongkir;
}
}
rajaOngkir Pojo (List)
public class Rajaongkir {
#SerializedName("query")
#Expose
private Query query;
#SerializedName("status")
#Expose
private Status status;
#SerializedName("origin_details")
#Expose
private OriginDetails originDetails;
#SerializedName("destination_details")
#Expose
private DestinationDetails destinationDetails;
#SerializedName("results")
#Expose
private List<Result> results = null;
public Query getQuery() {
return query;
}
public void setQuery(Query query) {
this.query = query;
}
public Status getStatus() {
return status;
}
public void setStatus(Status status) {
this.status = status;
}
public OriginDetails getOriginDetails() {
return originDetails;
}
public void setOriginDetails(OriginDetails originDetails) {
this.originDetails = originDetails;
}
public DestinationDetails getDestinationDetails() {
return destinationDetails;
}
public void setDestinationDetails(DestinationDetails destinationDetails) {
this.destinationDetails = destinationDetails;
}
public List<Result> getResults() {
return results;
}
public void setResults(List<Result> results) {
this.results = results;
}
}
Results List Pojo
public class Result {
#SerializedName("code")
#Expose
private String code;
#SerializedName("name")
#Expose
private String name;
#SerializedName("costs")
#Expose
private List<Cost> costs = null;
public Result(String code, String name, List<Cost> costs) {
this.code = code;
this.name = name;
this.costs = costs;
}
public Result(String code, String name) {
this.code = code;
this.name = name;
}
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public List<Cost> getCosts() {
return costs;
}
public void setCosts(List<Cost> costs) {
this.costs = costs;
}
}
Costs List Pojo
public class Cost {
#SerializedName("service")
#Expose
private String service;
#SerializedName("description")
#Expose
private String description;
#SerializedName("cost")
#Expose
private List<Cost_> cost = null;
public Cost(String service, String description) {
this.service = service;
this.description = description;
}
public String getService() {
return service;
}
public void setService(String service) {
this.service = service;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public List<Cost_> getCost() {
return cost;
}
public void setCost(List<Cost_> cost) {
this.cost = cost;
}
}
cost list Pojo
public class Cost_ {
#SerializedName("value")
#Expose
private Integer value;
#SerializedName("etd")
#Expose
private String etd;
#SerializedName("note")
#Expose
private String note;
public Cost_(Integer value, String etd, String note) {
this.value = value;
this.etd = etd;
this.note = note;
}
public Integer getValue() {
return value;
}
public void setValue(Integer value) {
this.value = value;
}
public String getEtd() {
return etd;
}
public void setEtd(String etd) {
this.etd = etd;
}
public String getNote() {
return note;
}
public void setNote(String note) {
this.note = note;
}
}
ListView Adapter
public class ResultsAdapter extends BaseAdapter {
private Activity activity;
private LayoutInflater inflater;
private List<Result> resulsItems;
private List<Cost> costsItems;
private List<Cost_> costItems;
TextView tv_origin, tv_destination, tv_expedisi, tv_coast, tv_time;
private String originCity, destinationCity, originPostalCode, destinationPostalCode;
public ResultsAdapter(MainActivity mainActivity, String originCity, String originPostalCode, String destinationCity, String destinationPostalCode, List<Result> listResults, List<Cost> listCosts, List<Cost_> listCost) {
this.activity = mainActivity;
this.originCity = originCity;
this.originPostalCode = originPostalCode;
this.destinationCity = destinationCity;
this.destinationPostalCode = destinationPostalCode;
this.resulsItems = listResults;
this.costsItems = listCosts;
this.costItems = listCost;
}
#Override
public int getCount() {
return resulsItems.size();
}
#Override
public Object getItem(int location) {
return resulsItems.get(location);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int i, View convertView, ViewGroup parent) {
if (inflater == null)
inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null)
convertView = inflater.inflate(R.layout.item_results, null);
tv_origin = (TextView) convertView.findViewById(R.id.tv_origin);
tv_destination = (TextView) convertView.findViewById(R.id.tv_destination);
tv_expedisi = convertView.findViewById(R.id.tv_expedisi);
tv_coast = convertView.findViewById(R.id.tv_coast);
tv_time = convertView.findViewById(R.id.tv_time);
results = resulsItems.get(i);
costs = costsItems.get(i);
cost = costItems.get(i);
tv_origin.setText(originCity);
tv_destination.setText(destinationCity);
tv_expedisi.setText(results.getName());
tv_coast.setText(String.valueOf(cost.getValue()));
tv_time.setText(cost.getEtd());
return convertView;
}
}
ACtual Response Log
{"body":{"rajaongkir":{"destination_details":{"city_id":"114","city_name":"Denpasar","postal_code":"80227","province":"Bali","province_id":"1","type":"Kota"},"origin_details":{"city_id":"501","city_name":"Yogyakarta","postal_code":"55111","province":"DI Yogyakarta","province_id":"5","type":"Kota"},"query":{"courier":"jne","destination":"114","key":"c5333cdcc37b3511c909088d99587fd8","origin":"501","weight":1000},"results":[{"code":"jne","costs":[{"cost":[{"etd":"4-5","note":"","value":26000}],"description":"Ongkos Kirim Ekonomis","service":"OKE"},{"cost":[{"etd":"2-3","note":"","value":28000}],"description":"Layanan Reguler","service":"REG"},{"cost":[{"etd":"1-1","note":"","value":43000}],"description":"Yakin Esok Sampai","service":"YES"}],"name":"Jalur Nugraha Ekakurir (JNE)"}],"status":{"code":200,"description":"OK"}}},"rawResponse":{"body":{"contentLength":823,"contentType":{"mediaType":"application/json","subtype":"json","type":"application"}},"code":200,"handshake":{"cipherSuite":"TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256","localCertificates":[],"peerCertificates":[{"hash":-1,"type":"X.509"},{"hash":-1,"type":"X.509"}],"tlsVersion":"TLS_1_2"},"headers":{"namesAndValues":["Date","Thu, 02 May 2019 13:09:21 GMT","Server","Apache/2.4.7 (Ubuntu)","Content-Length","823","Keep-Alive","timeout\u003d15, max\u003d100","Connection","Keep-Alive","Content-Type","application/json"]},"message":"OK","networkResponse":{"code":200,"handshake":{"cipherSuite":"TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256","localCertificates":[],"peerCertificates":[{"hash":-1,"type":"X.509"},{"hash":-1,"type":"X.509"}],"tlsVersion":"TLS_1_2"},"headers":{"namesAndValues":["Date","Thu, 02 May 2019 13:09:21 GMT","Server","Apache/2.4.7 (Ubuntu)","Content-Length","823","Keep-Alive","timeout\u003d15, max\u003d100","Connection","Keep-Alive","Content-Type","application/json"]},"message":"OK","protocol":"HTTP_1_1","receivedResponseAtMillis":1556802600578,"request":{"body":{"encodedNames":["key","origin","destination","weight","courier"],"encodedValues":["c5333cdcc37b3511c909088d99587fd8","501","114","1000","jne"]},"cacheControl":{"isPrivate":false,"isPublic":false,"maxAgeSeconds":-1,"maxStaleSeconds":-1,"minFreshSeconds":-1,"mustRevalidate":false,"noCache":false,"noStore":false,"noTransform":false,"onlyIfCached":false,"sMaxAgeSeconds":-1},"headers":{"namesAndValues":["Content-Type","application/x-www-form-urlencoded","Content-Length","87","Host","api.rajaongkir.com","Connection","Keep-Alive","Accept-Encoding","gzip","User-Agent","okhttp/3.3.0"]},"method":"POST","tag":{"body":{"encodedNames":["key","origin","destination","weight","courier"],"encodedValues":["c5333cdcc37b3511c909088d99587fd8","501","114","1000","jne"]},"headers":{"namesAndValues":[]},"method":"POST","url":{"host":"api.rajaongkir.com","password":"","pathSegments":["starter","cost"],"port":443,"scheme":"https","url":"https://api.rajaongkir.com/starter/cost","username":""}},"url":{"host":"api.rajaongkir.com","password":"","pathSegments":["starter","cost"],"port":443,"scheme":"https","url":"https://api.rajaongkir.com/starter/cost","username":""}},"sentRequestAtMillis":1556802600415},"protocol":"HTTP_1_1","receivedResponseAtMillis":1556802600578,"request":{"body":{"encodedNames":["key","origin","destination","weight","courier"],"encodedValues":["c5333cdcc37b3511c909088d99587fd8","501","114","1000","jne"]},"headers":{"namesAndValues":["Content-Type","application/x-www-form-urlencoded","Content-Length","87"]},"method":"POST","tag":{"body":{"encodedNames":["key","origin","destination","weight","courier"],"encodedValues":["c5333cdcc37b3511c909088d99587fd8","501","114","1000","jne"]},"headers":{"namesAndValues":[]},"method":"POST","url":{"host":"api.rajaongkir.com","password":"","pathSegments":["starter","cost"],"port":443,"scheme":"https","url":"https://api.rajaongkir.com/starter/cost","username":""}},"url":{"host":"api.rajaongkir.com","password":"","pathSegments":["starter","cost"],"port":443,"scheme":"https","url":"https://api.rajaongkir.com/starter/cost","username":""}},"sentRequestAtMillis":1556802600415}}

public void getCoast(String origin,
String destination,
String weight,
String courier) {
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(ApiUrl.URL_ROOT_HTTPS)
.addConverterFactory(GsonConverterFactory.create())
.build();
ApiService service = retrofit.create(ApiService.class);
Call<ItemCost> call = service.getCost(
"c5333cdcc37b3511c909088d99587fd8",
origin,
destination,
weight,
courier
);
call.enqueue(new Callback<ItemCost>() {
#Override
public void onResponse(Call<ItemCost> call, Response<ItemCost> response) {
Log.v("wow", "json : " + new Gson().toJson(response));
progressDialog.dismiss();
if (response.isSuccessful()) {
int statusCode = response.body().getRajaongkir().getStatus().getCode();
if (statusCode == 200) {
LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View alertLayout = inflater.inflate(R.layout.custom_results, null);
alert = new AlertDialog.Builder(MainActivity.this);
alert.setTitle("Result Cost");
alert.setMessage("this result your search");
alert.setView(alertLayout);
alert.setCancelable(true);
ad = alert.show();
String originCity = response.body().getRajaongkir().getOriginDetails().getCityName();
String originPostalCode = response.body().getRajaongkir().getOriginDetails().getPostalCode();
String destinationCity = response.body().getRajaongkir().getDestinationDetails().getCityName();
String destinationPostalCode = response.body().getRajaongkir().getDestinationDetails().getPostalCode();
//results
List<com.bagicode.cekongkir.model.cost.Result> ListResults = response.body().getRajaongkir().getResults();
//costs
List<com.bagicode.cekongkir.model.cost.Cost> ListCosts = response.body().getRajaongkir().getResults().get(0).getCosts();
//cost
List<com.bagicode.cekongkir.model.cost.Cost_> ListCost = response.body().getRajaongkir().getResults().get(0).getCosts().get(0).getCost();
mListView = (ListView) alertLayout.findViewById(R.id.listItem);
adapter_results = new ResultsAdapter(MainActivity.this, originCity, originPostalCode, destinationCity, destinationPostalCode, ListResults, ListCosts, ListCost);
mListView.setAdapter(adapter_results);
mListView.setClickable(true);
adapter_results.notifyDataSetChanged();
} else {
String message = response.body().getRajaongkir().getStatus().getDescription();
Toast.makeText(MainActivity.this, message, Toast.LENGTH_SHORT).show();
}
} else {
String error = "Error Retrive Data from Server !!!";
Toast.makeText(MainActivity.this, error, Toast.LENGTH_SHORT).show();
}
}
#Override
public void onFailure(Call<ItemCost> call, Throwable t) {
progressDialog.dismiss();
Toast.makeText(MainActivity.this, "Message : Error " + t.getMessage(), Toast.LENGTH_SHORT).show();
}
});
}

Firebase model POJO getter returns null in FirebaseRecyclerAdapter

I have a FirebaseRecyclerAdapter fetching data from the firebase database but when I am trying to access firebase data the getter method of the POJO returns null. I am able to get the database reference key.
final Query beveragesQuery = mDatabaseReference.child(FirebaseValues.PRODUCTS)
.child(FirebaseValues.BEVERAGES);
FirebaseRecyclerOptions<GenericProductModel> beveragesOptions =
new FirebaseRecyclerOptions.Builder<GenericProductModel>()
.setQuery(beveragesQuery, GenericProductModel.class)
.build();
adapter = new FirebaseRecyclerAdapter<GenericProductModel, Combos.MovieViewHolder>(
beveragesOptions
) {
#NonNull
#Override
public Combos.MovieViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.cards_cardview_layout, parent, false);
return new Combos.MovieViewHolder(view);
}
#Override
protected void onBindViewHolder(#NonNull Combos.MovieViewHolder viewHolder, int position, #NonNull GenericProductModel model) {
Log.d(TAG, "Item received:"+getRef(position).getKey());
String json = new Gson().toJson(model);
Log.d(TAG, "Item received:"+ json);
Log.d(TAG, "Item received:"+ model.toString());
if (tv_no_item.getVisibility() == View.VISIBLE) {
tv_no_item.setVisibility(View.GONE);
}
Log.d(TAG, "card name:"+model.getCardname());
viewHolder.cardname.setText(model.getCardname());
viewHolder.cardprice.setText("₹ " + Float.toString(model.getCardprice()));
Picasso.get().load(model.getCardimage()).into(viewHolder.cardimage);
viewHolder.mView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(Beverages.this, IndividualProduct.class);
intent.putExtra("product", getItem(position));
startActivity(intent);
}
});
}
#Override
public void onError(DatabaseError e) {
Log.e(TAG, "RV Adapter, Error occurred: " + e.getMessage());
}
};
mLayoutManager = new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL);
mRecyclerView.setLayoutManager(mLayoutManager);
adapter.startListening();
mRecyclerView.setAdapter(adapter);
}
My POJO or model class is
public class GenericProductModel implements Serializable {
public int cardid;
public String cardname;
public String cardimage;
public String carddescription;
public float cardprice;
public GenericProductModel() {
}
public GenericProductModel(int cardid, String cardname, String cardimage, String carddescription, float cardprice) {
this.cardid = cardid;
this.cardname = cardname;
this.cardimage = cardimage;
this.carddescription = carddescription;
this.cardprice = cardprice;
}
public int getCardid() {
return cardid;
}
public String getCardname() {
return cardname;
}
public String getCardimage() {
return cardimage;
}
public String getCarddescription() {
return carddescription;
}
public float getCardprice() {
return cardprice;
}
public void setCardid(int cardid) {
this.cardid = cardid;
}
public void setCardname(String cardname) {
this.cardname = cardname;
}
public void setCardimage(String cardimage) {
this.cardimage = cardimage;
}
public void setCarddescription(String carddescription) {
this.carddescription = carddescription;
}
public void setCardprice(float cardprice) {
this.cardprice = cardprice;
}
}
I am implementing Serializable because I am sending this data as an intent to other activity.
Added some more log options for clearity
When I run the app the log output I am getting is:
03-17 15:05:55.200 4501-4501/com.vdeveloper.chaisutta D/BeveragesTAG: Item received, received:1
03-17 15:05:55.227 4501-4501/com.vdeveloper.chaisutta D/BeveragesTAG: Item received:{"a":0,"e":0.0}
03-17 15:05:55.227 4501-4501/com.vdeveloper.chaisutta D/BeveragesTAG: Item received:com.vdeveloper.chaisutta.b.a#63d3fc
03-17 15:05:55.227 4501-4501/com.vdeveloper.chaisutta D/BeveragesTAG: card name:null
Database Screenshot:

I have found a solution myself. The problem was with my POJO. As this project was on androidx I need to add the annotation "#Keep" to stop the compiler from removing methods which it thinks are redundant.
import java.io.Serializable;
import androidx.annotation.Keep;
#Keep
public class GenericProductModel implements Serializable {
public int cardid;
public String cardname;
public String cardimage;
public String carddescription;
public float cardprice;
public GenericProductModel() {
}
public GenericProductModel(int cardid, String cardname, String cardimage, String carddescription, float cardprice) {
this.cardid = cardid;
this.cardname = cardname;
this.cardimage = cardimage;
this.carddescription = carddescription;
this.cardprice = cardprice;
}
public int getCardid() {
return cardid;
}
public String getCardname() {
return cardname;
}
public String getCardimage() {
return cardimage;
}
public String getCarddescription() {
return carddescription;
}
public float getCardprice() {
return cardprice;
}
public void setCardid(int cardid) {
this.cardid = cardid;
}
public void setCardname(String cardname) {
this.cardname = cardname;
}
public void setCardimage(String cardimage) {
this.cardimage = cardimage;
}
public void setCarddescription(String carddescription) {
this.carddescription = carddescription;
}
public void setCardprice(float cardprice) {
this.cardprice = cardprice;
}
}
Thanks, everyone for helping

You are getting null because all your values are null since you are returning in each getter this.fieldName instead of the fieldName. To solve this, please change your getters to:
public int getCardid() {
return cardid;
}
public String getCardname() {
return cardname;
}
public String getCardimage() {
return cardimage;
}
public String getCarddescription() {
return carddescription;
}
public float getCardprice() {
return cardprice;
}
See, there is no this anymore.

Data from server is not displaying on screen

So am working with retrofit and rxjava for my application.so am using the #GET annociation to pull my blog details from the server that include blog_title, blog_content, blog_thumbnail etc and all this parameter are within an array called blog_post.
I have my APIClient:
public class ApiClient {
private static final String STAGING_BASE_URL = "https://watchnollywood.ml/api/";
private static ApiClient instance;
private ApiService apiService;
private ApiClient(){
HttpLoggingInterceptor logging = new HttpLoggingInterceptor();
// set your desired log level
// TODO: 21/03/2017 when going live change the log level to NONE, to enhance performance
logging.setLevel(HttpLoggingInterceptor.Level.BODY);
OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
// add logging as last interceptor
httpClient.addInterceptor(logging); // <-- this is the important line for logging requests!
final Gson gson = new GsonBuilder().setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES).create();
//final Retrofit retrofit = new Retrofit.Builder().baseUrl(STAGING_BASE_URL).addCallAdapterFactory(RxJavaCallAdapterFactory.create()).addConverterFactory(GsonConverterFactory.create(gson)).client(httpClient.build()).build();
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(STAGING_BASE_URL)
.client(httpClient.build())
.addConverterFactory(GsonConverterFactory.create())
.addCallAdapterFactory(RxJava2CallAdapterFactory.create())
.build();
apiService = retrofit.create(ApiService.class);
}
public static ApiClient getInstance(){
if(instance == null){
instance = new ApiClient();
}
return instance;
}
//API CALL FOR LOGIN
public Observable<UserItem> login(String email, String password){
return apiService.signIn(email,password);
}
//API CALL FOR SIGNUP
public Observable<StatusItem> signup(String email, String password, String full_name, String phone){
return apiService.signUp(email, password,phone,full_name);
}
//API CALL FOR BLOG DETAILS
public Observable<BlogResponse> blog_post(){
return apiService.blog_post();
}
}
ApiService:
public interface ApiService {
#FormUrlEncoded
#POST("signin")
Observable<UserItem> signIn(#Field("email") String email, #Field("password") String password);
#FormUrlEncoded
#POST("signup")
Observable<StatusItem> signUp(#Field("full_name")String full_name, #Field("phone") String phone, #Field("email") String email, #Field("password") String password);
#GET("blog")
Observable<BlogResponse> blog_post();
}
pojo classes:
public class BlogItem {
private int thumbNail;
private String title;
private String summary;
public int getThumbNail() {
return thumbNail;
}
public void setThumbNail(#DrawableRes int thumbNail) {
this.thumbNail = thumbNail;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getSummary() {
return summary;
}
public void setSummary(String summary) {
this.summary = summary;
}
}
public class BlogResponse {
private BlogItem[] blogItems;
public BlogItem[] getBlogItems() {
return blogItems;
}
public void setBlogItems(BlogItem[] blogItems) {
this.blogItems = blogItems;
}
}
I have a recyclerview that will hold all the information that will be coming from the server. But the problem is that when I run it I get a log response in my RUN terminal but nothing is showing on the app screen.
this is my FragmentClass that holds the information from the server:
BlogFragment:
public class BlogFragment extends Fragment {
private static final String ARG_PARAM1 = "param1";
private String mParam1;
private RecyclerView recyclerView;
private BlogAdapter adapter;
private List<BlogItem> blogItems;
private View view;
public BlogFragment() {
// Required empty public constructor
}
public static BlogFragment newInstance(String param1) {
BlogFragment fragment = new BlogFragment();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
fragment.setArguments(args);
return fragment;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString(ARG_PARAM1);
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
view = inflater.inflate(R.layout.fragment_blog, container, false);
return view;
}
#Override
public void onActivityCreated(#Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
recyclerView = (RecyclerView) view.findViewById(R.id.blog_posts_list);
setUpViews();
}
private void setUpViews() {
blogItems = new ArrayList<>();
adapter = new BlogAdapter(blogItems);
recyclerView.setAdapter(adapter);
recyclerView.setLayoutManager(new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL));
BlogPost();
// populateLists();
}
private void BlogPost() {
ApiClient.getInstance().blog_post().observeOn(AndroidSchedulers.mainThread())
.subscribeOn(Schedulers.newThread()).subscribe(new DisposableObserver<BlogResponse>() {
#Override
public void onNext(BlogResponse value) {
BlogItem blogItem = new BlogItem();
blogItem.setTitle(blogItem.getTitle().toString());
blogItem.setSummary(blogItem.getSummary().toString());
}
#Override
public void onError(Throwable e) {
}
#Override
public void onComplete() {
BlogItem blogItem = new BlogItem();
blogItem.setTitle("blog_title");
blogItem.setSummary("blog_content");
}
});
adapter.notifyItemRangeChanged(0, adapter.getItemCount());
}
/*
private void populateLists() {
int dummyPostArraySize = 10;
for (int i = 0; i < dummyPostArraySize; i++) {
BlogItem blogItem = new BlogItem();
blogItem.setTitle("Post title " + i+1);
blogItem.setThumbNail(isEven(i) ? R.drawable.profile_image : 0);
blogItem.setSummary(getString(isEven(i) ? R.string.summary2 : R.string.summary1));
blogItems.add(blogItem);
}
adapter.notifyItemRangeChanged(0, adapter.getItemCount());
}*/
private boolean isEven(int position) {
return (position & 1) == 0;
}
}
Adapter class
public class BlogAdapter extends RecyclerView.Adapter<BlogViewHolder> {
private List<BlogItem> blogItems;
public BlogAdapter(List<BlogItem> blogItems) {
this.blogItems = blogItems;
}
#Override
public BlogViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.blog_post_item,
parent, false);
return new BlogViewHolder(view);
}
#Override
public void onBindViewHolder(BlogViewHolder holder, int position) {
BlogItem blogItem = blogItems.get(position);
holder.bindModel(blogItem);
}
#Override
public int getItemCount() {
return blogItems == null ? (0) : blogItems.size();
}
}
View Holder class
public class BlogViewHolder extends RecyclerView.ViewHolder {
private ImageView cover;
private TextView title;
private TextView summary;
public BlogViewHolder(View itemView) {
super(itemView);
cover = (ImageView) itemView.findViewById(R.id.post_thumbnail);
title = (TextView) itemView.findViewById(R.id.post_title);
summary = (TextView) itemView.findViewById(R.id.post_summary);
}
public void bindModel(BlogItem blogItem) {
if (blogItem.getThumbNail() == 0) {
cover.setVisibility(View.GONE);
} else {
cover.setImageResource(blogItem.getThumbNail());
}
title.setText(Html.fromHtml(blogItem.getTitle()));
summary.setText(blogItem.getSummary());
}
}
What am I not doing right. Someone Please Help!!!

In the private void BlogPost() { method, you create BlogItems but then don't do anything with it. You probably forgot to add them to the blogItems list.
In addition, the call to adapter.notifyItemRangeChanged in that method happens way before the sequence receives data but you don't call that after each blogItem or when all blog items have arrived - the observer is on a complete different execution path than the outer BlogPost() method.
Edit spelled out:
#Override
public void onNext(BlogResponse value) {
for (BlogItem responseItem : value.getBlogItems()) {
BlogItem blogItem = new BlogItem();
blogItem.setTitle(responseItem.getTitle().toString());
blogItem.setSummary(responseItem.getSummary().toString());
blogItems.add(blogItem);
}
adapter.notifyItemRangeChanged(0, adapter.getItemCount());
}
#Override
public void onError(Throwable e) {
}
#Override
public void onComplete() {
BlogItem blogItem = new BlogItem();
blogItem.setTitle("blog_title");
blogItem.setSummary("blog_content");
blogItems.add(blogItem);
adapter.notifyItemRangeChanged(0, adapter.getItemCount());
}

Having troubles getting data from List Adapter for OnItemClick

Im having an issue with getting data that is obtained when my listadapter is set to my listview. Im trying to get this data in onItemClick so that i can put it into my intent extra's for my other activity to obtain.
The Problem
Currently i've created null string variables and then in my adapter assigning the strings with the desired text by methods within my model. However the problem im having is that the text that is being pulled is not the correct text for the position that onitemclick was called for.
Here some code...
XMLParseActivity
public class XMLParseActivity extends Activity implements AdapterView.OnItemClickListener {
private ListView mIssueListView;
private IssueParser mIssueParser;
private List<IssueFeed> mIssueList;
private IssueAdapter mIssueAdapter;
private String result_connectedtype = "";
private String result_symptom = "";
private String result_problem = "";
private String result_solution = "";
private String result_comments = "";
...
public class IssueAdapter extends ArrayAdapter<IssueFeed> {
public List<IssueFeed> issueFeedList;
public IssueAdapter(Context context, int textViewResourceId, List<IssueFeed> issueFeedList) {
super(context, textViewResourceId, issueFeedList);
this.issueFeedList = issueFeedList;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
IssueHolder issueHolder = null;
if (convertView == null) {
view = View.inflate(XMLParseActivity.this, R.layout.issue_list_item, null);
issueHolder = new IssueHolder();
issueHolder.issueConnectedType = (TextView) view.findViewById(R.id.result_connected_type);
issueHolder.issueSymptomView = (TextView) view.findViewById(R.id.result_symptom);
view.setTag(issueHolder);
} else {
issueHolder = (IssueHolder) view.getTag();
}
IssueFeed issueFeed = issueFeedList.get(position);
issueHolder.issueConnectedType.setText(issueFeed.getConnected_type());
issueHolder.issueSymptomView.setText(issueFeed.getSymptom());
//THE DATA I WANT TO USE IN MY INTENT
result_solution = issueFeed.getSolution();
result_comments = issueFeed.getComments();
result_connectedtype = issueFeed.getConnected_type();
result_problem = issueFeed.getProblem();
result_symptom = issueFeed.getSymptom();
return view;
}
}
static class IssueHolder {
public TextView issueSymptomView;
public TextView issueConnectedType;
}
#Override
public void onItemClick(AdapterView<?> adapterView, View v, int position, long id) {
//Put the strings in intent extra
Intent intent = new Intent(this, SpecificIssueActivity.class);
intent.putExtra("symptom", result_symptom);
intent.putExtra("problem", result_problem);
intent.putExtra("solution", result_solution);
intent.putExtra("comments", result_comments);
intent.putExtra("connectedtype", result_connectedtype);
startActivity(intent);
}
The listAdapter is set in a asynctask in the below code
public class DoLocalParse extends AsyncTask<String, Void, List<IssueFeed>> {
ProgressDialog prog;
String jsonStr = null;
Handler innerHandler;
#Override
protected void onPreExecute() {
prog = new ProgressDialog(XMLParseActivity.this);
prog.setMessage("Loading....");
prog.show();
}
#Override
protected List<IssueFeed> doInBackground(String... params) {
mIssueParser = new IssueParser(null);
mIssueList = mIssueParser.parseLocally(params[0]);
return mIssueList;
}
#Override
protected void onPostExecute(List<IssueFeed> result) {
prog.dismiss();
runOnUiThread(new Runnable() {
#Override
public void run() {
mIssueAdapter = new IssueAdapter(XMLParseActivity.this, R.layout.issue_list_item,
mIssueList);
int count = mIssueAdapter.getCount();
if (count != 0 && mIssueAdapter != null) {
mIssueListView.setAdapter(mIssueAdapter);
}
}
});
}
}
And my model IssueFeed looks like this
public class IssueFeed implements Serializable {
private String connected_type;
private String symptom;
private String problem;
private String solution;
private String comments;
public IssueFeed() {
}
public IssueFeed(String connected_type, String symptom, String problem, String solution, String comments) {
this.connected_type = connected_type;
this.symptom = symptom;
this.problem = problem;
this.solution = solution;
this.comments = comments;
}
public String getConnected_type() {
return connected_type;
}
public String getSymptom() {
return symptom;
}
public String getProblem() {
return problem;
}
public String getSolution() {
return solution;
}
public String getComments() {
return comments;
}
public void setConnected_type(String connected_type) {
this.connected_type = connected_type;
}
public void setSymptom(String symptom) {
this.symptom = symptom;
}
public void setProblem(String problem) {
this.problem = problem;
}
public void setSolution(String solution) {
this.solution = solution;
}
public void setComments(String comments) {
this.comments = comments;
}
}

I have solve the issue by getting the data from some simple methods in my model to obtain the values.

Develop Reference

Java is a programming language and computing platform first released by Sun Microsystems in 1995.

Issue with ArrayList from JSON using Retrofit and populating RecyclerView - java

Try create the Constructor with all atributes from your Recipe.class Like: public Ingredients(String measure, String ingredients, String quantity ){ this.measure = measure; this.ingredients = ingredients; this.quantity = quantity } Do same in all class where make up your object of list.

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