Je n'ai pas obtenu de données de Retrofit

Votre classe Model devrait ressembler à ceci:

Call<model> call = api.getABC();
call.enqueue(new Callback<Model>() {
        @Override
        public void onResponse(Call<Model> call, Response<Model> response) {
            if (response.isSuccessful()) {
                List<Result> results=response.body().getResults();
                for(Result result:results){
                Log.d(TAG,"Result: "+result.getVoteCount())                    
               }



            }
        }

        @Override
        public void onFailure(Call<Model> call, Throwable t) {

        }
    });

Ensuite, l'appel de mise à niveau devrait ressembler à ceci:

public class Model {
@SerializedName("page")
private int page;

@SerializedName("results")
private List<Result> results;

@SerializedName("total_results")
private int total;

@SerializedName("total_pages")
private int totalPages;

//.......getter setter methods

}


public class Result{
@SerializedName("vote_count")
private int voteCount;

@SerializedName("vote_average")
private double voteAverage;

@SerializedName("overview")
private String overView;

//.....other fields
//......getter setter methods
}

Bon codage. ... :)

utilisez ce site pour générer une classe de réponse correcte en java

La classe de réponse ressemblera à ceci: p>

public class BasicResponse implements Serializable
{

@SerializedName("page")
@Expose
private long page;
@SerializedName("total_results")
@Expose
private long totalResults;
@SerializedName("total_pages")
@Expose
private long totalPages;
@SerializedName("results")
@Expose
private List<Result> results = null;
private final static long serialVersionUID = 8749582078961182468L;

public long getPage() {
return page;
}

public void setPage(long page) {
this.page = page;
}

public long getTotalResults() {
return totalResults;
}

public void setTotalResults(long totalResults) {
this.totalResults = totalResults;
}

public long getTotalPages() {
return totalPages;
}

public void setTotalPages(long totalPages) {
this.totalPages = totalPages;
}

public List<Result> getResults() {
return results;
}

public void setResults(List<Result> results) {
this.results = results;
}

}
//-----------------------------------com.example.Result.java--------------

package com.example;

import java.io.Serializable;
import java.util.List;
import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

public class Result implements Serializable
{

@SerializedName("vote_count")
@Expose
private long voteCount;
@SerializedName("id")
@Expose
private long id;
@SerializedName("video")
@Expose
private boolean video;
@SerializedName("vote_average")
@Expose
private double voteAverage;
@SerializedName("title")
@Expose
private String title;
@SerializedName("popularity")
@Expose
private double popularity;
@SerializedName("poster_path")
@Expose
private String posterPath;
@SerializedName("original_language")
@Expose
private String originalLanguage;
@SerializedName("original_title")
@Expose
private String originalTitle;
@SerializedName("genre_ids")
@Expose
private List<Long> genreIds = null;
@SerializedName("backdrop_path")
@Expose
private String backdropPath;
@SerializedName("adult")
@Expose
private boolean adult;
@SerializedName("overview")
@Expose
private String overview;
@SerializedName("release_date")
@Expose
private String releaseDate;
private final static long serialVersionUID = 2770789699641812364L;

public long getVoteCount() {
return voteCount;
}

public void setVoteCount(long voteCount) {
this.voteCount = voteCount;
}

public long getId() {
return id;
}

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

public boolean isVideo() {
return video;
}

public void setVideo(boolean video) {
this.video = video;
}

public double getVoteAverage() {
return voteAverage;
}

public void setVoteAverage(double voteAverage) {
this.voteAverage = voteAverage;
}

public String getTitle() {
return title;
}

public void setTitle(String title) {
this.title = title;
}

public double getPopularity() {
return popularity;
}

public void setPopularity(double popularity) {
this.popularity = popularity;
}

public String getPosterPath() {
return posterPath;
}

public void setPosterPath(String posterPath) {
this.posterPath = posterPath;
}

public String getOriginalLanguage() {
return originalLanguage;
}

public void setOriginalLanguage(String originalLanguage) {
this.originalLanguage = originalLanguage;
}

public String getOriginalTitle() {
return originalTitle;
}

public void setOriginalTitle(String originalTitle) {
this.originalTitle = originalTitle;
}

public List<Long> getGenreIds() {
return genreIds;
}

public void setGenreIds(List<Long> genreIds) {
this.genreIds = genreIds;
}

public String getBackdropPath() {
return backdropPath;
}

public void setBackdropPath(String backdropPath) {
this.backdropPath = backdropPath;
}

public boolean isAdult() {
return adult;
}

public void setAdult(boolean adult) {
this.adult = adult;
}

public String getOverview() {
return overview;
}

public void setOverview(String overview) {
this.overview = overview;
}

public String getReleaseDate() {
return releaseDate;
}

public void setReleaseDate(String releaseDate) {
this.releaseDate = releaseDate;
}

}

Toutes les étapes à vérifier:

1. appelez votre API dans Postman ou dans chaque navigateur pour get et check réponse json
2. copiez votre réponse json (que vous attendiez) dans http: //www.jsonschema2pojo .org / ce site pour en obtenir POJO
3. freinez votre adresse API dans l ' URL de base et le point de terminaison et créez une demande de mise à niveau
4. dans onResponse bloc de rappel de demande de mise à niveau si vous vous attendiez à obtenir json Object alors appelez ce metod li>

java

fun getUserPOJOList(value: String) : List<UserPOJO>{
            val gson = Gson()
            val listType = object : TypeToken<List<UserPOJO>>() {}.type
            var data = ArrayList<UserPOJO>()
            try {
                data = gson.fromJson<List<UserPOJO>>(value, listType) as ArrayList<UserPOJO>
            }catch (e: JsonSyntaxException){
                e.printStackTrace()
            }
            return data
        }

kotlin strong>

public static  List<UserPOJO> getUserPOJOList(String value) {
        Gson gson = new Gson();
        Type listType = new TypeToken<List<UserPOJO>>() {}.getType();
        List<UserPOJO> data = new ArrayList<UserPOJO>();
        try {
            data =new ArrayList<UserPOJO>(gson.fromJson(value,listType));
        }catch ( JsonSyntaxException e){
            e.printStackTrace();
        }
        return data;
    }

5.dans onResponse bloc de rappel de demande de mise à niveau si vous vous attendiez à obtenir json Array alors appelez ce metod

java

 fun getUsersPOJO getOUsersPOJOListJs(value: String) : UsersPOJO {
            val gson = Gson()
            val reader = JsonReader(StringReader(value))
            reader.isLenient = true
            var data = UsersPOJO()
            try {
                  data = gson.fromJson<Options>(reader, UsersPOJO::class.java)
            }catch (e: JsonSyntaxException){
                e.printStackTrace()
            }
            return data
        }

kotlin

public static  UsersPOJO getOUsersPOJOJs(String value) {
        Gson gson = new Gson();
        JsonReader reader = new JsonReader(new StringReader(value));
        reader.setLenient(true);
        UsersPOJO data = new UsersPOJO.User();
        try {
            data = gson.fromJson(reader,UsersPOJOr.class);
        }catch ( JsonSyntaxException e){
            e.printStackTrace();
        }
        return data;
    }