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recyclerView missing error in Android Studio

I'm a beginner programmer and I'm trying to receive data from the server using node.js and display the list on Android Studio but I keep having the following error:
E/RecyclerView: No adapter attached; skipping layout
D/HistoryActivity: HistoryResponse{result=[com.sooryong.loginexample.data.HistoryData#3303f3c, com.sooryong.loginexample.data.HistoryData#33764c5]}
D/AndroidRuntime: Shutting down VM
As you can see, I can't recall my list properly as well and I don't know how to fix it. Here are my codes:
public interface ServiceApi {
#POST("/user/login")
Call<LoginResponse> userLogin(#Body LoginData data);
#POST("/user/join")
Call<JoinResponse> userJoin(#Body JoinData data);
#GET("/test/history")
Call<HistoryResponse> getData();
}
HistoryData.java
public class HistoryData {
#SerializedName("eventID")
private int eventID;
#SerializedName("eventType")
private String eventType;
#SerializedName("eventDate")
private String eventDate;
#SerializedName("userID")
private int userID;
#SerializedName("sensorID")
private String sensorID;
public HistoryData(int eventID, String eventType, String eventDate, int userID, String sensorID) {
super();
this.eventID = eventID;
this.eventType = eventType;
this.eventDate = eventDate;
this.userID = userID;
this.sensorID = sensorID;
}
public int getEventID() {
return eventID;
}
public String getEventType() {
return eventType;
}
public String getEventDate() { return eventDate; }
public int getUserID() {
return userID;
}
public String getSensorID() { return sensorID; }
}
HistoryResponse.java
public class HistoryResponse {
#SerializedName("code")
public String code;
#SerializedName("message")
public String message;
#SerializedName("result")
public List<HistoryData> result;
#Override
public String toString() {
return "HistoryResponse{" + "result=" + result +'}';
}
}
HistoryActivity.java
public class HistoryActivity extends AppCompatActivity {
HistoryResponse dataList;
List<HistoryData> dataInfo;
private RecyclerView recyclerView;
private RecyclerAdapter recyclerAdapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.recycler_view);
dataInfo = new ArrayList<>();
recyclerView = findViewById(R.id.recyclerView);
RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);
ServiceApi apiInterface = RetrofitClient.getClient().create(ServiceApi.class);
Call<HistoryResponse> call = apiInterface.getData();
call.enqueue(new Callback<HistoryResponse>() {
#Override
public void onResponse(Call<HistoryResponse> call, Response<HistoryResponse> response) {
dataList = response.body();
Log.d("Response", dataList.toString());
dataInfo = dataList.result;
recyclerAdapter = new RecyclerAdapter(getApplicationContext(), dataInfo);
recyclerView.setAdapter(recyclerAdapter);
}
#Override
public void onFailure(Call<HistoryResponse> call, Throwable t) {
Log.d("Response", t.getMessage());
}
});
}
}
RecyclerAdapter.java
public class RecyclerAdapter extends RecyclerView.Adapter<RecyclerAdapter.MyViewHolder>{
private Context c;
private List<HistoryData> dataList;
public RecyclerAdapter(Context c, List<HistoryData> dataList) {
this.c = c;
this.dataList = dataList;
}
#NonNull
#Override
public RecyclerAdapter.MyViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(c).inflate(R.layout.recycler_view, parent, false);
return new MyViewHolder(view);
}
#Override
public void onBindViewHolder(#NonNull RecyclerAdapter.MyViewHolder holder, int position) {
holder.id.setText(dataList.get(position).getSensorID());
holder.type.setText("" + dataList.get(position).getEventType());
holder.date.setText("" + dataList.get(position).getEventDate());
}
#Override
public int getItemCount() {
return (dataList == null) ? 0 : dataList.size();
}
public class MyViewHolder extends RecyclerView.ViewHolder {
TextView id;
TextView type;
TextView date;
public MyViewHolder(#NonNull View itemView) {
super(itemView);
id = (TextView)itemView.findViewById(R.id.sensorID);
type = (TextView)itemView.findViewById(R.id.eventType);
date = (TextView)itemView.findViewById(R.id.eventDate);
}
}
}
I don't think the data is being initialized properly inside the RecyclerAdapter class. Is it because I couldn't load the data properly from the server?

I ever face the same issue similiar to this.
What I've done was: initialize the adapter once only the activity created:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.recycler_view);
dataInfo = new ArrayList<>();
initAdapter();
....
}
private void initAdapter() {
//The adapter should create once in onCreate
recyclerView = findViewById(R.id.recyclerView);
recyclerView.setLayoutManager(new LinearLayoutManager(getApplicationContext, LinearLayoutManager.VERTICAL, false);
recyclerAdapter = new RecyclerAdapter(getApplicationContext(), dataInfo);
recyclerView.setAdapter(recyclerAdapter);
}
Then when in callback result: you can clear the previous data before reload to the adapter:
call.enqueue(new Callback<HistoryResponse>() {
#Override
public void onResponse(Call<HistoryResponse> call, Response<HistoryResponse> response) {
dataList = response.body();
dataInfo.clear(); // <- here we clear all previous data before reload result to the adapter.
dataInfo = dataList.result;
recyclerAdapter.notifyDataSetChanged()
#Override
public void onFailure(Call<HistoryResponse> call, Throwable t) {
Log.d("Response", t.getMessage());
}
});
Hope this help.

Having problem to fetching file from firestore recycle view [duplicate]

This question already has an answer here:
Firebase Android ListView not being displayed
(1 answer)
Closed 1 year ago.
I am an android developer beginner, I am having a problem fetch files from firestore recycle view in the main activity but I can fetch files from fragments.
This is my main activity
public class FoodInfoActivity extends AppCompatActivity {
RecyclerView recyclerView1,recyclerView2;
private FirebaseFirestore db = FirebaseFirestore.getInstance();
private CollectionReference notebookRef;
private NoteAdapter adapter;
FirebaseAuth fAuth;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_food_info);
fAuth = FirebaseAuth.getInstance();
setUpRecyclerView();
}
private void setUpRecyclerView() {
notebookRef = db.collection("FoodInside");
Query query = notebookRef;
FirestoreRecyclerOptions<FoodAdapter> options = new FirestoreRecyclerOptions.Builder<FoodAdapter>()
.setQuery(query, FoodAdapter.class)
.build();
adapter = new NoteAdapter(options);
RecyclerView recyclerView = findViewById(R.id.fi);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
recyclerView.setAdapter(adapter);
}
}
This is my Note adapter where i use model class to fetch file
public class NoteAdapter extends FirestoreRecyclerAdapter<FoodAdapter, NoteAdapter.NoteHolder> {
public NoteAdapter(#NonNull FirestoreRecyclerOptions<FoodAdapter> options) {
super(options);
}
#Override
protected void onBindViewHolder(#NonNull NoteHolder holder, int position, #NonNull FoodAdapter foodAdapter) {
holder.textViewTitle.setText(foodAdapter.getRestaurant());
holder.textViewDescription.setText(foodAdapter.getItem());
holder.textViewPriority.setText(String.valueOf(foodAdapter.getPrice()));
}
#NonNull
#Override
public NoteHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.food_recycle_layout,
parent, false);
return new NoteHolder(v);
}
class NoteHolder extends RecyclerView.ViewHolder {
TextView textViewTitle;
TextView textViewDescription;
TextView textViewPriority;
public NoteHolder(View itemView) {
super(itemView);
textViewTitle = itemView.findViewById(R.id.textView95a);
textViewDescription = itemView.findViewById(R.id.textView123a);
textViewPriority = itemView.findViewById(R.id.textView124a);
}
}
}
This is my adapter class ,
public class FoodAdapter {
String Restaurant;
String Item;
String Price;
String item_id;
public FoodAdapter() {
}
public FoodAdapter(String restaurant, String item, String price,String item_id) {
Restaurant = restaurant;
Item = item;
Price = price;
this.item_id = item_id;
}
public String getRestaurant() {
return Restaurant;
}
public void setRestaurant(String restaurant) {
Restaurant = restaurant;
}
public String getItem() {
return Item;
}
public void setItem(String item) {
Item = item;
}
public String getPrice() {
return Price;
}
public void setPrice(String price) {
Price = price;
}
public String getItem_id() {
return item_id;
}
public void setItem_id(String item_id) {
this.item_id = item_id;
}
}
Why it is not working in main activity but work fragment. I am just afraid. and tired...working on the project. so need solution of this problem

#Override
protected void onStart() {
super.onStart();
adapter.startListening();
}
#Override
protected void onStop() {
super.onStop();
adapter.stopListening();
}
Add this line to main activity.

How can I hide an ImageView on my RecyclerView for certain items based on a particular condition?

I have a RecyclerView with an ImageView being a part of the items. I want to hide the ImageView from an item in the RecyclerView if a certain condition is met. How can I do that? I am attaching the image of how I want it to look like.
I am just defining the ImageViews in my xml layout file, so I cannot figure out how to actually remove it based on a certain condition in my android activity. I am attaching the code for the adapter class and my activity as well.
Here is the code for my adapter class
Adapter Class
public class ReportAdapter extends RecyclerView.Adapter<ReportAdapter.ReportViewHolder> {
private ArrayList<ReportItem> reportlist;
private OnItemClickListener mListener;
private Context mContext;
public ReportAdapter(ArrayList<ReportItem> reportlist, Context context) {
this.reportlist = reportlist;
this.mContext = context;
}
public interface OnItemClickListener {
void onItemClick(int position);
}
public void setOnItemClickListener(OnItemClickListener listener) {
mListener = listener;
}
public static class ReportViewHolder extends RecyclerView.ViewHolder {
public TextView departureDate;
public TextView flightNumber;
public View relativelayout;
public ReportViewHolder(#NonNull View itemView, OnItemClickListener listener, Context context) {
super(itemView);
departureDate = itemView.findViewById(R.id.departureDaterecyclerview);
flightNumber = itemView.findViewById(R.id.flightnumberrecyclerview);
relativelayout = itemView.findViewById(R.id.relativeLayoutReports);
itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(listener != null) {
int position = getAdapterPosition();
if(position != RecyclerView.NO_POSITION) {
listener.onItemClick(position);
}
}
}
});
}
}
#NonNull
#Override
public ReportViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.report_listing_item, parent, false);
ReportViewHolder rvh= new ReportViewHolder(v,mListener,mContext);
return rvh;
}
#SuppressLint("ResourceAsColor")
#Override
public void onBindViewHolder(#NonNull ReportViewHolder holder, int position) {
ReportItem currentItem = reportlist.get(position);
if(position%2==0){
holder.relativelayout.setBackgroundColor(mContext.getResources().getColor(R.color.reportlistingteal));
} else {
holder.relativelayout.setBackgroundColor(mContext.getResources().getColor(R.color.reportlistinglightteal));
}
holder.departureDate.setText((currentItem.getDepartureDate()));
holder.flightNumber.setText(currentItem.getFlightNumber());
}
Here is the code for my activity file
Activity file
public class ReportListingActivity extends AppCompatActivity {
private Button uploadAllBtn;
private EditText searchFlights;
private RecyclerView mRecyclerView;
private ReportAdapter mAdapter;
private RecyclerView.LayoutManager mLayoutManager;
ArrayList<ReportItem> reportitems = new ArrayList<>();
private FlightViewModel flightViewModel;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_report_listing);
uploadAllBtn = findViewById(R.id.uploadAllReports);
searchFlights = findViewById(R.id.searchFlightText);
mRecyclerView = findViewById(R.id.recyclerView);
flightViewModel = new ViewModelProvider(this).get(FlightViewModel.class);
flightViewModel.getAllFlights().observe(this, new Observer<List<Flight>>() {
#Override
public void onChanged(List<Flight> flight_list) {
if (flight_list.size() == 0) return;
String flightno = flight_list.get(0).getFlightNumber();
String flightdate = flight_list.get(0).getDate();
String[] flight_details = new String[2];
flight_details[0]= flightno;
flight_details[1] = flightdate;
Log.v("pp", flight_details[0]);
for(int i = 0; i <flight_list.size();i++){
String flightnumber = flight_list.get(i).getFlightNumber();
String departuredate = flight_list.get(i).getDate();
reportitems.add(new ReportItem(flightnumber,departuredate));
}
mRecyclerView.getAdapter().notifyDataSetChanged();
flightViewModel.getAllFlights().removeObservers(ReportListingActivity.this);
}
});
mLayoutManager = new LinearLayoutManager(ReportListingActivity.this);
mAdapter = new ReportAdapter(reportitems, ReportListingActivity.this);
mRecyclerView.setLayoutManager(mLayoutManager);
mRecyclerView.setAdapter(mAdapter);
}
Report Item
public class ReportItem {
private String departureDate;
private String flightNumber;
public ReportItem(String departureDate, String flightNumber) {
this.departureDate = departureDate;
this.flightNumber = flightNumber;
}
public String getDepartureDate() {
return departureDate;
}
public String getFlightNumber() {
return flightNumber;
}
}

Add a boolean flag to your ReportItem class for each RecyclerView item. You will need to specify which rows show or hide this field when each item is created:
public class ReportItem {
private String departureDate;
private String flightNumber;
private Boolean showMailIcon;
public ReportItem(String departureDate, String flightNumber, Boolean showMailIcon) {
this.departureDate = departureDate;
this.flightNumber = flightNumber;
this.showMailIcon = showMailIcon
}
public String getDepartureDate() {
return departureDate;
}
public String getFlightNumber() {
return flightNumber;
}
public String getShowMailIcon() {
return showMailIcon;
}
}
Then update the onBindViewHolder() method override to use this flag to show/hide the ImageView:
#Override
public void onBindViewHolder(#NonNull ReportViewHolder holder, int position) {
ReportItem currentItem = reportlist.get(position);
if (currentItem.getShowMailIcon() == true) {
holder.mailIcon.setVisibility(View.VISIBLE);
} else {
holder.mailIcon.setVisibility(View.GONE);
}
//.......
}

How to implement onClick in FirestoreRecyclerAdapter to open a new Fragment?

I am trying to implement OnClick in my recyclerview,but i failed miserably with all the searches how to solve this problem.
I want by clicking on my cardview to go to another activity/even better fragment with another expandable lists,but i can't even do this for now.
Any help is highly appreciated
MainActivity code
package com.oleg.firestoretest;
public static final String TAG = "FireLog";
private CollectionReference noteBookRef;
private FirebaseFirestore mFirestore;
private NoteAdapter adapter;
private RecyclerView recyclerView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mFirestore = FirebaseFirestore.getInstance();
noteBookRef = mFirestore.collection("Notebook");
setupRecyclerView();
}
private void setupRecyclerView() {
Query query = noteBookRef.orderBy("priority", Query.Direction.DESCENDING);
FirestoreRecyclerOptions<Note> options = new FirestoreRecyclerOptions.Builder<Note>()
.setQuery(query,Note.class)
.build();
adapter = new NoteAdapter(options);
recyclerView = findViewById(R.id.recycler_view);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
recyclerView.setAdapter(adapter);
}
#Override
protected void onStart() {
super.onStart();
adapter.startListening();
}
#Override
protected void onStop() {
super.onStop();
adapter.stopListening();
}
}
public Note() {
}
public Note(String title, String content, int priority) {
this.title = title;
this.content = content;
this.priority = priority;
}
public String getTitle() {
return title;
}
public String getContent() {
return content;
}
public int getPriority() {
return priority;
}
}
public class NoteAdapter extends FirestoreRecyclerAdapter<Note, NoteAdapter.NoteHolder> {
private Context mContext;
public NoteAdapter(#NonNull FirestoreRecyclerOptions<Note> options) {
super(options);
}
#Override
protected void onBindViewHolder(#NonNull NoteHolder noteHolder, int i, #NonNull Note note) {
noteHolder.title.setText(note.getTitle());
noteHolder.content.setText(note.getContent());
noteHolder.priority.setText(String.valueOf(note.getPriority()));
}
#NonNull
#Override
public NoteHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.note_item,
parent, false);
return new NoteHolder(v);
}
class NoteHolder extends RecyclerView.ViewHolder {
TextView title;
TextView content;
TextView priority;
public NoteHolder(#NonNull View itemView) {
super(itemView);
title = itemView.findViewById(R.id.title_text);
content = itemView.findViewById(R.id.content_text);
priority = itemView.findViewById(R.id.priority_text);
}
}
}

Here the Code u need:
class NoteHolder extends RecyclerView.ViewHolder {
TextView title;
TextView content;
TextView priority;
CardView cardView;
public NoteHolder(#NonNull View itemView) {
super(itemView);
title = itemView.findViewById(R.id.title_text);
content = itemView.findViewById(R.id.content_text);
priority = itemView.findViewById(R.id.priority_text);
cardView = itemView.findViewById(R.id.cardView);
}
private void bind(){
cardView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(FirstActivity.this, SecoundActivity.class);
startActivity(intent);
}
});
}
}

Fixed it with this code!!!
public NoteHolder(#NonNull final View itemView) {
super(itemView);
cardView = itemView.findViewById(R.id.cardview);
title = itemView.findViewById(R.id.title_text);
content = itemView.findViewById(R.id.content_text);
priority = itemView.findViewById(R.id.priority_text);
itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
itemView.getContext().startActivity(new Intent(itemView.getContext(),Empty.class));
}
});
}

how to set a path param using retrofit

how to get ID position in call retrofit
GET https://api.themoviedb.org/3/movie/{movie_id}/credits?api_key=<>
i need to get position id send to server in loadCast function
and in MovieService that's retrofit call i need send postion id befor credits
i don't know how to do that if any one can help me thanks so much for that <3
//this my call retrofit server
public interface MovieService {
#GET("popular?" + Common.API_KEY + "&language=en-US")
Call<MoviesList> getPopular(#Query("api_key") String api_key);
#GET( ListMovieAdapter.SELECTED_MOVIE +"/credits?" + Common.API_KEY +
"&language=en-US")
Call<MovieCast> getCast(
#Query("api_key") String api_key);
----------------------------------------------------------------
package com.example.android.movie;
/**
* Created by yuyu on 12-Nov-18.
*/
public class MovieDetails extends YouTubeBaseActivity {
Result selectedMovie;
private ArrayList<Cast> cast;
private RecyclerView.LayoutManager mLayoutManager;
private RecyclerView mRecyclerView;
private CastMovieAdapter castMovieAdapter;
private TextView name;
private ImageView imageMovie;
private TextView date;
private TextView rating;
private ArrayList<Result> results;
MovieService mService;
private static final String YT_API_KEY = "###";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.movie_details);
selectedMovie =
getIntent().getParcelableExtra(ListMovieAdapter.SELECTED_MOVIE);
mRecyclerView = (RecyclerView) findViewById(R.id.cast_recycler);
mLayoutManager = new LinearLayoutManager(this,
LinearLayoutManager.VERTICAL, false);
mRecyclerView.setLayoutManager(mLayoutManager);
cast = new ArrayList<>();
castMovieAdapter = new CastMovieAdapter(cast, MovieDetails.this);
mRecyclerView.setAdapter(castMovieAdapter);
results = new ArrayList<>();
mService = Common.getMovieService();
loadTriler();
loadMovies();
loadCast();
}
this function to load movie
private void loadMovies() {
mService.getPopular(Common.API_KEY).enqueue(new Callback<MoviesList>()
{
#Override
public void onResponse(Call<MoviesList> call, Response<MoviesList>
response) {
results.clear();
results.addAll(response.body().getResults());
name = (TextView) findViewById(R.id.name_movie);
rating = (TextView) findViewById(R.id.rating);
date = (TextView) findViewById(R.id.date_det);
imageMovie = (ImageView) findViewById(R.id.imageView);
date.setText(selectedMovie.getReleaseDate());
name.setText(selectedMovie.getTitle());
rating.setText(String.valueOf(selectedMovie.getVoteAverage()));
final String image = Common.IMAGE_LOAD +
selectedMovie.getPosterPath();
Picasso.with(MovieDetails.this)
.load(image)
.into(imageMovie);
}
#Override
public void onFailure(Call<MoviesList> call, Throwable t) {
Log.d("===LoadMovies", "onResponse: " + t);
}
});
}
//i have proplem here in send ID postion
private void loadCast() {
mService.getCast(
ListMovieAdapter.SELECTED_MOVIE+Common.API_KEY).enqueue(new
Callback<MovieCast>() {
#Override
public void onResponse(Call<MovieCast> call, final
Response<MovieCast> response) {
cast.clear();
cast.addAll(response.body().getCast());
mRecyclerView.getAdapter().notifyDataSetChanged();
}
#Override
public void onFailure(Call<MovieCast> call, Throwable t) {
}
});
}
}
package com.example.android.movie.Adapter;
/**
* Created by yuyu on 11-Nov-18.
*/
public class ListMovieAdapter extends
RecyclerView.Adapter<ListMovieAdapter.MyViewHolder> {
private ArrayList<Result> mMovies;
private Context context;
public static final String SELECTED_MOVIE = "selected_movie";
private int lastPosition = -1;
public ListMovieAdapter(ArrayList<Result> mMovies, Context context) {
this.mMovies = mMovies;
this.context = context;
}
#Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(context);
View view = inflater.inflate(R.layout.list_views, parent, false);
return new MyViewHolder(view);
}
#Override
public void onBindViewHolder(MyViewHolder holder, int position) {
//Animation Scroll
Animation animation = AnimationUtils.loadAnimation(context,
(position > lastPosition) ? R.anim.up_from_bottom
: R.anim.down_from_top);
holder.itemView.startAnimation(animation);
lastPosition = position;
holder.nameMovie.setText(mMovies.get(position).getTitle());
final String image = Common.IMAGE_LOAD +
mMovies.get(position).getPosterPath();
Picasso.with(context)
.load(image)
.into(holder.imageMovie);
holder.rating.setText(String.valueOf(
mMovies.get(position).getVoteAverage()));
holder.dateMovie.setText(mMovies.get(position).getReleaseDate());
holder.setItemClickListener(new ItemClickListener() {
#Override
public void onClick(View view, int position) {
Intent intent = new Intent(context, MovieDetails.class);
Result result = mMovies.get(position);
intent.putExtra(SELECTED_MOVIE, result);
context.startActivity(intent);
}
});
}
#Override
public int getItemCount() {
return mMovies.size();
}
class MyViewHolder extends RecyclerView.ViewHolder implements
View.OnClickListener {
ImageView imageMovie;
TextView nameMovie;
TextView rating;
TextView dateMovie;
ItemClickListener itemClickListener;
public MyViewHolder(View itemView) {
super(itemView);
this.imageMovie = (ImageView)
itemView.findViewById(R.id.image_movie);
this.nameMovie = (TextView) itemView.findViewById(R.id.name_movie);
this.rating = (TextView) itemView.findViewById(R.id.rating);
this.dateMovie = (TextView) itemView.findViewById(R.id.date);
itemView.setOnClickListener(this);
}
public void setItemClickListener(ItemClickListener itemClickListener) {
this.itemClickListener = itemClickListener;
}
#Override
public void onClick(View v) {
itemClickListener.onClick(v, getAdapterPosition());
}
}
}

From the Retrofit documentation:
URL MANIPULATION A request URL can be updated dynamically using
replacement blocks and parameters on the method. A replacement block
is an alphanumeric string surrounded by { and }. A corresponding
parameter must be annotated with #Path using the same string.
#GET("group/{id}/users")
Call<List<User>> groupList(#Path("id") int groupId);
https://square.github.io/retrofit/