Vfrdtyky

I am retrieving data from API and accessing the data using GSON. I have an array of data coming from API and it also contains an object in it.

Data Example:

{

    "data": [

        {

            "id": 3,

            "company_id": "1",

            "name_nl": "Showtrap trapreno laminaat Kahlua 2 treden Karwei 42x23x25cm",

            "description": "",

            "name_fr": "=ESCALIER DEMO MELAMINE 2MARCHES===",

            "ean_code": "8711283406329",

            "mbh": "1",

            "msrp": "75",

            "article_code": "00076",

            "article_status": "nazorg",

            "source": "Products",

            "created_at": "2018-09-14 11:43:57",

            "updated_at": "2018-09-14 11:43:57",

            "company": {

                "id": 1,

                "name": "JEWE",

                "franco_amount_product": "1500",

                "mail_product": "jewehq@expertmedia.be",

                "status": "A",

                "created_at": "2018-07-06 04:06:08",

                "updated_at": "2018-10-23 14:07:59"

            }

        }



      ]

}

I have generated Plain Old Java Objects from JSON and got 2 files datum.java that contains all fields of data array except fields from company object. And one Company.java that contains all fields from Company object.

I have one method in datum.java to access Company object i.e.

public Company getCompany() {

        return company;

    }



    public void setCompany(Company company) {

        this.company = company;

    }

And Company.java

@SerializedName("name")

    @Expose

    private String name;



    public String getName() {

        return name;

    }



    public void setName(String name) {

        this.name = name;

    }

like this I have created my model. I am able to get all fields of data array but I am not able to understand how can I access company object from data array using GSON.

GsonBuilder gsonBuilder = new GsonBuilder();

        gsonBuilder.setDateFormat("M/d/yy hh:mm a");

        gson = gsonBuilder.create();





   JSONArray jsonArray = response.getJSONArray("data");



                            if (jsonArray.length() > 0) {



                                List<Datum> datumArrayList = new ArrayList<>();



                                datumArrayList = Arrays.asList(gson.fromJson(jsonArray.toString(), Datum.class));



                                Log.e("TAG", "onResponse:datumArrayList "+datumArrayList.size() );





                                for(Datum datum : datumArrayList){



                                    Log.e("TAG", "onResponse: "+datum.getCompany() );



                                }

I want to get franco_amount_product from company object. How can I get Please help.

//Edit .

JSONArray jsonArray = response.getJSONArray("data");



                            if (jsonArray.length() > 0) {



                                List<Datum> datumArrayList = new ArrayList<>();



                                datumArrayList = Arrays.asList(gson.fromJson(jsonArray.toString(), Datum.class));



                                Log.e("TAG", "onResponse:datumArrayList "+datumArrayList.size() );





                                ProductDetailsModel model = ProductDetailsModel.fromJson("data");



                                model.setData(datumArrayList);



                                for(Datum datum : model.getData()){



                                    Log.e("TAG", "onResponse: " + datum.getCompany().getFrancoAmountProduct() + ""+datum.getEanCode());

                                }

I have edited my code but not able to get any values now. How can I access values from both data and company as I need to save combined data in database

your Datum.java should be like,

import com.google.gson.annotations.Expose;

import com.google.gson.annotations.SerializedName;



public class Datum {



    @SerializedName("id")

    @Expose

    private Integer id;

    @SerializedName("company_id")

    @Expose

    private String companyId;

    @SerializedName("name_nl")

    @Expose

    private String nameNl;

    @SerializedName("description")

    @Expose

    private String description;

    @SerializedName("name_fr")

    @Expose

    private String nameFr;

    @SerializedName("ean_code")

    @Expose

    private String eanCode;

    @SerializedName("mbh")

    @Expose

    private String mbh;

    @SerializedName("msrp")

    @Expose

    private String msrp;

    @SerializedName("article_code")

    @Expose

    private String articleCode;

    @SerializedName("article_status")

    @Expose

    private String articleStatus;

    @SerializedName("source")

    @Expose

    private String source;

    @SerializedName("created_at")

    @Expose

    private String createdAt;

    @SerializedName("updated_at")

    @Expose

    private String updatedAt;

    @SerializedName("company")

    @Expose

    private Company company;



    public Integer getId() {

        return id;

    }



    public void setId(Integer id) {

        this.id = id;

    }



    public String getCompanyId() {

        return companyId;

    }



    public void setCompanyId(String companyId) {

        this.companyId = companyId;

    }



    public String getNameNl() {

        return nameNl;

    }



    public void setNameNl(String nameNl) {

        this.nameNl = nameNl;

    }



    public String getDescription() {

        return description;

    }



    public void setDescription(String description) {

        this.description = description;

    }



    public String getNameFr() {

        return nameFr;

    }



    public void setNameFr(String nameFr) {

        this.nameFr = nameFr;

    }



    public String getEanCode() {

        return eanCode;

    }



    public void setEanCode(String eanCode) {

        this.eanCode = eanCode;

    }



    public String getMbh() {

        return mbh;

    }



    public void setMbh(String mbh) {

        this.mbh = mbh;

    }



    public String getMsrp() {

        return msrp;

    }



    public void setMsrp(String msrp) {

        this.msrp = msrp;

    }



    public String getArticleCode() {

        return articleCode;

    }



    public void setArticleCode(String articleCode) {

        this.articleCode = articleCode;

    }



    public String getArticleStatus() {

        return articleStatus;

    }



    public void setArticleStatus(String articleStatus) {

        this.articleStatus = articleStatus;

    }



    public String getSource() {

        return source;

    }



    public void setSource(String source) {

        this.source = source;

    }



    public String getCreatedAt() {

        return createdAt;

    }



    public void setCreatedAt(String createdAt) {

        this.createdAt = createdAt;

    }



    public String getUpdatedAt() {

        return updatedAt;

    }



    public void setUpdatedAt(String updatedAt) {

        this.updatedAt = updatedAt;

    }



    public Company getCompany() {

        return company;

    }



    public void setCompany(Company company) {

        this.company = company;

    }



}

Your Company.java,

import com.google.gson.annotations.Expose;

import com.google.gson.annotations.SerializedName;



public class Company {



    @SerializedName("id")

    @Expose

    private Integer id;

    @SerializedName("name")

    @Expose

    private String name;

    @SerializedName("franco_amount_product")

    @Expose

    private String francoAmountProduct;

    @SerializedName("mail_product")

    @Expose

    private String mailProduct;

    @SerializedName("status")

    @Expose

    private String status;

    @SerializedName("created_at")

    @Expose

    private String createdAt;

    @SerializedName("updated_at")

    @Expose

    private String updatedAt;



    public Integer getId() {

        return id;

    }



    public void setId(Integer id) {

        this.id = id;

    }



    public String getName() {

        return name;

    }



    public void setName(String name) {

        this.name = name;

    }



    public String getFrancoAmountProduct() {

        return francoAmountProduct;

    }



    public void setFrancoAmountProduct(String francoAmountProduct) {

        this.francoAmountProduct = francoAmountProduct;

    }



    public String getMailProduct() {

        return mailProduct;

    }



    public void setMailProduct(String mailProduct) {

        this.mailProduct = mailProduct;

    }



    public String getStatus() {

        return status;

    }



    public void setStatus(String status) {

        this.status = status;

    }



    public String getCreatedAt() {

        return createdAt;

    }



    public void setCreatedAt(String createdAt) {

        this.createdAt = createdAt;

    }



    public String getUpdatedAt() {

        return updatedAt;

    }



    public void setUpdatedAt(String updatedAt) {

        this.updatedAt = updatedAt;

    }



}

Create ResponseModel.java like,

import com.google.gson.Gson;

import com.google.gson.annotations.SerializedName;



import java.util.List;



public class ResponseModel {



    @SerializedName("data")

    private List<Datum> data = null;



    public List<Datum> getData() {

        return data;

    }



    public void setData(List<Datum> data) {

        this.data = data;

    }

}

Then get your Company object as below,

Gson gson = new Gson();

ResponseModel responseModel = gson.fromJson(jsonStr,ResponseModel.class);

for (int i=0;i<responseModel.getData().size();i++){

   Company company = responseModel.getData().get(i).getCompany();

}

You should create a model class for the response which handles the whole json string:

ResponseModel.java

import com.google.gson.Gson;

import com.google.gson.annotations.SerializedName;



import java.util.List;



public class ResponseModel {



    @SerializedName("data")

    private List<Datum> data = null;



    public List<Datum> getData() {

        return data;

    }



    public void setData(List<Datum> data) {

        this.data = data;

    }



    public static ResponseModel fromJson(String json) {

        return new Gson().fromJson(json, ResponseModel.class);

    }



}

Now you can use it like following to parse the json string:

ResponseModel model = ResponseModel.fromJson(jsonString);

// for example for item 0:

String francoAmountProduct = model.getData().get(0).getCompany().getFrancoAmountProduct();

In a for loop like question content:

for(Datum datum : model.getData()){

    Log.e("TAG", "onResponse: " + datum.getCompany().getFrancoAmountProduct());

}