CODEWITHSUNDEEP
javaandroidandroid-studioandroid-recyclerviewretrofit2
Ardityo Cahyo
Ardityo Cahyo

Reputation: 45

Android Retrofit RecyclerView error: incompatible types: <anonymous Callback<ServiceResponse>> cannot be converted to Callback<Service>

I'm trying to make RecyclerView from API that my friend created.

But suddenly i have this problem, help me to solve this :'(

I don't know what this mean, cuz this is my first time usin' retrofit for RecyclerView Data. I really appreciate your help.

/home/ardityoc/AndroidStudioProjects/HomeCare/app/src/main/java/com/humic/android/homecare/ui/user/home/HomeFragment.java:83: error: incompatible types: <anonymous Callback<ServiceResponse>> cannot be converted to Callback<Service>
    ServiceApiService.getAllServicesUserRequest("Bearer " + loadToken()).enqueue(new Callback<ServiceResponse>() {
                                                                                 ^

This is my HomeFragment.java

package com.humic.android.homecare.ui.user.home;

import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import android.widget.Toast;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.widget.Toolbar;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import com.google.android.material.appbar.CollapsingToolbarLayout;
import com.humic.android.homecare.R;
import com.humic.android.homecare.activity.user.MainActivity;
import com.humic.android.homecare.adapter.RecyclerViewServiceAdapter;
import com.humic.android.homecare.model.Service;
import com.humic.android.homecare.rest.ApiClient;
import com.humic.android.homecare.rest.ApiInterface;
import com.humic.android.homecare.rest.service.ServiceResponse;

import org.json.JSONException;
import org.json.JSONObject;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;

import static android.content.Context.MODE_PRIVATE;
import static com.humic.android.homecare.activity.LoginActivity.userToken;
import static com.humic.android.homecare.activity.user.CurrentUserActivity.userName;
import static com.humic.android.homecare.utils.SharedPreference.SHARED_PREFS_TOKEN;
import static com.humic.android.homecare.utils.SharedPreference.SHARED_PREFS_USER;

public class HomeFragment extends Fragment {

    String nameCache, tokenCache;
    TextView UserName;

    RecyclerView ServiceRecyclerView;
    RecyclerViewServiceAdapter ServiceAdapter;

    List<Service> ServiceList;

    Context ServiceContext;
    ApiInterface ServiceApiService;

    public View onCreateView(@NonNull LayoutInflater inflater,
                             ViewGroup container, Bundle savedInstanceState) {
        View root = inflater.inflate(R.layout.fragment_home, container, false);

        ServiceContext = getContext();
        ServiceApiService = ApiClient.getAPIService();

        initComponents(root);

        return root;
    }

    @Override
    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        ServiceRecyclerView = (RecyclerView) getView().findViewById(R.id.list_home_service);
        ServiceAdapter = new RecyclerViewServiceAdapter(getActivity(),ServiceList);
        ServiceRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
    }

    private void requestServices() {
        ServiceApiService.getAllServicesUserRequest("Bearer " + loadToken()).enqueue(new Callback<ServiceResponse>() {
            @Override
            public void onResponse(Call<ServiceResponse> call, Response<ServiceResponse> response) {
                if (response.isSuccessful()){
                    Log.i("debug", "onResponse: Berhasil");
                    try {
                        ServiceResponse jsonResponse = response.body();
                        JSONObject jsonRESULTS = new JSONObject(jsonResponse.toString());
                        if (jsonRESULTS.getJSONObject("meta").getString("status").equals("success")){
//                            ServiceList = new ArrayList<>(jsonResponse.getServiceResponse());

                            ServiceList = jsonResponse.getServiceResponse();

                            ServiceRecyclerView.setAdapter(ServiceAdapter);
                        } else {
                            String error_message = jsonRESULTS.getString("error_msg");
                            Toast.makeText(ServiceContext, error_message, Toast.LENGTH_SHORT).show();
                        }
                    } catch (JSONException | IOException e) { //Error di sini
                        e.printStackTrace();
                    }
                } else {
                    Log.i("debug", "onResponse: Tidak Berhasil");
                }
            }

            @Override
            public void onFailure(Call<ServiceResponse> call, Throwable t) {
                Log.e("debug", "onFailure: ERROR > " + t.getMessage());
                Toast.makeText(ServiceContext, "Koneksi Internet Bermasalah", Toast.LENGTH_SHORT).show();
            }
        });
    }

    private void initComponents(View root){
        getViewId(root);

        UserName.setText(loadCurrentUserName());

        Toolbar toolbar = (Toolbar) getActivity().findViewById(R.id.toolbar);
        CollapsingToolbarLayout toolBarLayout = (CollapsingToolbarLayout) getActivity().findViewById(R.id.toolbar_layout);
    }

    private void getViewId(View root){
        UserName = root.findViewById(R.id.user_name);
    }

    private String loadToken(){
        final SharedPreferences sharedPreferences = getActivity().getSharedPreferences(SHARED_PREFS_TOKEN, MODE_PRIVATE);

        tokenCache = sharedPreferences.getString(userToken, "");
        return tokenCache;
    }

    private String loadCurrentUserName(){
        final SharedPreferences sharedPreferences = getActivity().getSharedPreferences(SHARED_PREFS_USER, MODE_PRIVATE);

        nameCache = sharedPreferences.getString(userName, "");
        return nameCache;
    }

}
                                                                                     ^

This is JSON Response from my friend.

{
    "meta": {
        "code": 200,
        "status": "success",
        "message": "successfully load data"
    },
    "data": [
        {
            "id": 1,
            "name": "Pemasangan infus",
            "information": "pemasangan kateter untuk kegiatan medis",
            "image": "https://via.placeholder.com/300",
            "price": 120000,
            "created_at": "2021-07-29T01:35:43.000000Z",
            "updated_at": "2021-07-29T01:35:43.000000Z"
        },
        {
            "id": 2,
            "name": "Pemasangan infus",
            "information": "pemasangan infus untuk kegiatan medis",
            "image": "https://via.placeholder.com/300",
            "price": 80000,
            "created_at": "2021-07-29T01:35:43.000000Z",
            "updated_at": "2021-07-29T01:35:43.000000Z"
        },
        {
            "id": 3,
            "name": "Perawatan luka jahitan",
            "information": "perawatan luka pasca operasi, umumnya luka jahitan",
            "image": "https://via.placeholder.com/300",
            "price": 70000,
            "created_at": "2021-07-29T01:35:43.000000Z",
            "updated_at": "2021-07-29T01:35:43.000000Z"
        },
        {
            "id": 4,
            "name": "suntik vaksin titan",
            "information": "melakukan suntik untuk mendapatkan kekuatan titan, kekuatan titan yang dihasilkan bersifat acak.",
            "image": "http://149.28.136.231/storage/services/Titan_injection_(Anime).webp",
            "price": 120000,
            "created_at": "2021-07-29T04:11:43.000000Z",
            "updated_at": "2021-07-29T10:17:05.000000Z"
        }
    ]
}

This is my Service.java

package com.humic.android.homecare.model;

import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

public class Service {

    @SerializedName("id")
    @Expose
    private int id;
    @SerializedName("name")
    @Expose
    private String name;
    @SerializedName("information")
    @Expose
    private String information ;
    @SerializedName("image")
    @Expose
    private String image ;
    @SerializedName("price")
    @Expose
    private int price ;

    public Service() {}

    public Service(int Id, String Name, String Information, String Image, int Price) {
        this.id = Id;
        this.name = Name;
        this.information = Information;
        this.image = Image;
        this.price = Price;
    }

    public int getId() {
        return id;
    }

    public String getName() {
        return name;
    }

    public String getInformation() {
        return information;
    }

    public String getImage() {
        return image;
    }

    public int getPrice() {
        return price;
    }

    public void setId(int Id) {
        this.id = Id;
    }

    public void setName(String Name) {
        this.name = Name;
    }

    public void setInformation(String Information) {
        this.information = Information;
    }

    public void setImage(String Image) {
        this.image = Image;
    }

    public void setPrice(int Price) {
        this.price = Price;
    }

}

This is my ServiceResponse.java

package com.humic.android.homecare.rest.service;

import com.google.gson.annotations.SerializedName;
import com.humic.android.homecare.model.Service;

import java.util.ArrayList;

public class ServiceResponse {

    @SerializedName("data")
    ArrayList<Service> ServiceResponse;

    public ArrayList<Service> getServiceResponse() {
        return ServiceResponse;
    }

    public void setServiceResponse(ArrayList<Service> ServiceResponse) {
        this.ServiceResponse = ServiceResponse;
    }
}

This is my RecyclerViewServiceAdapter.java

package com.humic.android.homecare.adapter;

import android.content.Context;
import android.content.Intent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import androidx.cardview.widget.CardView;
import androidx.recyclerview.widget.RecyclerView;

import com.humic.android.homecare.R;
import com.humic.android.homecare.activity.user.ServiceActivity;
import com.humic.android.homecare.model.Service;

import org.jetbrains.annotations.NotNull;

import java.util.List;

public class RecyclerViewServiceAdapter extends RecyclerView.Adapter<RecyclerViewServiceAdapter.ServiceViewHolder> {

    private Context serviceContext ;
    private List<Service> serviceData ;


    public RecyclerViewServiceAdapter(Context serviceContext, List<Service> serviceData) {
        this.serviceContext = serviceContext;
        this.serviceData = serviceData;

    }

    @NotNull
    @Override
    public ServiceViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

        View view ;
        LayoutInflater mInflater = LayoutInflater.from(serviceContext);
        view = mInflater.inflate(R.layout.item_home_service,parent,false);
        return new ServiceViewHolder(view);

    }

    @Override
    public void onBindViewHolder(ServiceViewHolder holder, final int position) {

        holder.serviceName.setText(serviceData.get(position).getName());
//        holder.serviceThumbnail.setImageResource(serviceData.get(position).getImage());
        holder.serviceCardView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                Intent intent = new Intent(serviceContext, ServiceActivity.class);

                intent.putExtra("name",serviceData.get(position).getName());
                intent.putExtra("information",serviceData.get(position).getInformation());
                intent.putExtra("price",serviceData.get(position).getPrice());
//                intent.putExtra("image",serviceData.get(position).getImage());

                serviceContext.startActivity(intent);

            }

        });

    }

    @Override
    public int getItemCount() {
        return serviceData.size();
    }

    public static class ServiceViewHolder extends RecyclerView.ViewHolder {

        TextView serviceName;
//        ImageView serviceImage;
        CardView serviceCardView ;

        public ServiceViewHolder(View itemView) {
            super(itemView);

            serviceName = (TextView) itemView.findViewById(R.id.list_home_service_title) ;
//            serviceImage = (ImageView) itemView.findViewById(R.id.list_home_service_thumbnail);
            serviceCardView = (CardView) itemView.findViewById(R.id.list_home_service_cardview);

        }

    }

}

This is my ApiInterface.java

package com.humic.android.homecare.rest;

import com.humic.android.homecare.model.Service;

import okhttp3.ResponseBody;
import retrofit2.Call;
import retrofit2.http.Field;
import retrofit2.http.FormUrlEncoded;
import retrofit2.http.GET;
import retrofit2.http.Header;
import retrofit2.http.POST;
import retrofit2.http.Path;
import retrofit2.http.Query;

public interface ApiInterface {
// Services
    @GET("services")
    Call<Service> getAllServicesUserRequest(@Header("Authorization") String token);
}

Upvotes: 1

Views: 694

Answers (1)

Dat Pham Tat
Dat Pham Tat

Reputation: 1463

The signature of your getAllServicesUserRequest is incorrect. According to the provided json, it should receive ServiceResponse, also when you enqueue the call you also defined there that you expect ServiceResponse. So updating the signature of getAllServicesUserRequest to Call<ServiceResponse> should fix your issue:

@GET("services")
Call<ServiceResponse> getAllServicesUserRequest(@Header("Authorization") String token);

Upvotes: 1

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