Retrofit not parsing in Android

Question

I am having trouble parsing the values and displaying in the recyclerview made the Pojo class's in jsonschema2pojo, but when i run the app, it shows the toast in the enqueue OnFailure(), i tried multiple things but no success any help i think it can be about the expecting jsonArray/jsonObject thing ?

Thank you in advance.

I want to get the values inside the array results[]

Json response given below:

  "success": true,
  "metadata": {
    "sort": "POPULARITY",
    "total_products": 20,
    "title": "Phones & Tablets",
    "results": [
      {
        "sku": "1",
        "name": "Samsung Galaxy S9",
        "brand": "Samsung",
        "max_saving_percentage": 30,
        "price": 53996,
        "special_price": 37990,
        "image": "https://cdn2.gsmarena.com/vv/bigpic/samsung-galaxy-s9-.jpg",
        "rating_average": 5
      },

APIReponse pojo class:

public class APIReponse {

    @SerializedName("success")
    @Expose
    private Boolean success;
    @SerializedName("metadata")
    @Expose
    private Metadata metadata;

MetaData pojo class:

public class MetaData {
    @SerializedName("sort")
    @Expose
    private String sort;
    @SerializedName("total_products")
    @Expose
    private Integer totalProducts;
    @SerializedName("title")
    @Expose
    private String title;
    @SerializedName("results")
    @Expose
    private List<Result> results = null;

Result pojo class:

public class Result {

    @SerializedName("sku")
    @Expose
    private String sku;
    @SerializedName("name")
    @Expose
    private String name;
    @SerializedName("brand")
    @Expose
    private String brand;
    @SerializedName("max_saving_percentage")
    @Expose
    private Integer maxSavingPercentage;
    @SerializedName("price")
    @Expose
    private Integer price;
    @SerializedName("special_price")
    @Expose
    private Integer specialPrice;
    @SerializedName("image")
    @Expose
    private String image;
    @SerializedName("rating_average")
    @Expose
    private Integer ratingAverage;

This is retrofit API interface:

    @GET("search/phone/page/1/")
    Call<List<Result>> getAllPhones(); 

Retrofit call methods:

        Call<List<Result>> call = service.getAllPhones();

        call.enqueue(new Callback<List<Result>>() {
            @Override
            public void onResponse(Call<List<Result>> call, Response<List<Result>> response) {
                generatePhonesList(response.body());

            }

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

                Toast.makeText(MainActivity.this, "Something went wrong...Please try later!", Toast.LENGTH_SHORT).show();

            }
      });
    }

    private void generatePhonesList(List<Result> phonesList){
        recyclerView = findViewById(R.id.recyclerView);
        adapter = new PhonesAdapter(phonesList,this);
        RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(MainActivity.this);
        recyclerView.setLayoutManager(layoutManager);
        recyclerView.setAdapter(adapter);
    }

Answer 1

You have to use your APIResponse Class as Result from your call

@GET("search/phone/page/1/")
Call<APIResponse> getAllPhones();

and you have to change your onResponse Method:

      call.enqueue(new Callback<APIResponse>() {
            @Override
            public void onResponse(Call<APIResponse> call, Response<APIResponse> response) {
                generatePhonesList(response.body().metadata.results);

            }

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

                Toast.makeText(MainActivity.this, "Something went wrong...Please try later!", Toast.LENGTH_SHORT).show();

            }
      });