Api Calling

 ApiClient.java

package com.example.volley.Api;

import retrofit2.Retrofit;
import retrofit2.converter.gson.GsonConverterFactory;

public class ApiClient {

    static  String BASE_URL="https://jsonplaceholder.typicode.com/";
    static  Retrofit retrofit=null;

    public static Retrofit getData()
    {
        if(retrofit==null)
        {
            retrofit =new Retrofit.Builder()
                    .baseUrl(BASE_URL)
                    .addConverterFactory(GsonConverterFactory.create())
                    .build();
        }
        return  retrofit;
    }

}


 Api_Interface.java

package com.example.volley.Api;

import com.example.volley.ModalClass.ModelDatum;

import java.util.List;

import retrofit2.Call;
import retrofit2.http.GET;

public interface ApiInterFace {

    @GET("posts")
    Call<List<ModelDatum>> getPost();


}


 MainActivity.java


public class Retro_Api extends AppCompatActivity {

    List<ModelDatum> modelDataList=new ArrayList<>();
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_retro_api);
        Api_Calling();
    }

    void Api_Calling()
    {
        ApiInterFace apiInterFace=getData().create(ApiInterFace.class);

        apiInterFace.getPost().enqueue(new Callback<List<ModelDatum>>() {
            @Override
            public void onResponse(Call<List<ModelDatum>> call, Response<List<ModelDatum>> response) {
                modelDataList=response.body();


                Log.e("TAG", "onResponse: ====>>> "+modelDataList.get(0).getId() );
                Log.e("TAG", "onResponse: ====>>> "+modelDataList.get(0).getUserId() );
                Log.e("TAG", "onResponse: ====>>> "+modelDataList.get(0).getTitle() );
                Log.e("TAG", "onResponse: ====>>> "+modelDataList.get(0).getBody() );
            }

            @Override
            public void onFailure(Call<List<ModelDatum>> call, Throwable t) {
                Toast.makeText(Retro_Api.this, ""+t.getMessage(), Toast.LENGTH_SHORT).show();
            }
        });
    }
}