I have an api gives response in xml format. I have again one "EmployeeModel" class with properities Id,Name,Mobile, IsActive. How to use Jackson XML library to call API using Retrofit in android java. Explain with example.

 To use Jackson XML library with Retrofit in Android Java, you will need to do the following:

1. Add the Retrofit and Jackson dependencies to your project:

implementation 'com.squareup.retrofit2:retrofit:2.9.0'
implementation 'com.squareup.retrofit2:converter-jackson:2.9.0'
implementation 'com.fasterxml.jackson.dataformat:jackson-dataformat-xml:2.12.3'

2. Create a POJO class that matches the XML response structure. In your case, it would be the EmployeeModel class with properties Id, Name, Mobile, and IsActive.

public class EmployeeModel {
    @JsonProperty("Id")
    private int id;

    @JsonProperty("Name")
    private String name;

    @JsonProperty("Mobile")
    private String mobile;

    @JsonProperty("IsActive")
    private boolean isActive;

    // getters and setters
}

3. Create a Retrofit interface that defines the API endpoints you want to call. In this example, we'll call a GET endpoint that returns a list of EmployeeModel objects:

public interface EmployeeApi {
    @GET("employees")
    Call<List<EmployeeModel>> getEmployees();
}

4. Create a Retrofit instance and configure it to use the Jackson XML converter:

Retrofit retrofit = new Retrofit.Builder()
    .baseUrl("https://example.com/api/")
    .addConverterFactory(JacksonConverterFactory.create(new XmlMapper()))
    .build();

EmployeeApi employeeApi = retrofit.create(EmployeeApi.class);

5. Call the API endpoint using the Retrofit instance:

Call<List<EmployeeModel>> call = employeeApi.getEmployees();

call.enqueue(new Callback<List<EmployeeModel>>() {
    @Override
    public void onResponse(Call<List<EmployeeModel>> call, Response<List<EmployeeModel>> response) {
        if (response.isSuccessful()) {
            List<EmployeeModel> employees = response.body();
            // Do something with the employees
        } else {
            // Handle error
        }
    }

    @Override
    public void onFailure(Call<List<EmployeeModel>> call, Throwable t) {
        // Handle error
    }
});

This example assumes that the API endpoint returns a list of EmployeeModel objects in the XML format that Jackson can parse. If the API response is in a different format or structure, you will need to modify the POJO class and Retrofit interface accordingly.