Tab1

tabview/Tab1

package net.ramastudio.sitara20.tabview;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toast;

import net.ramastudio.sitara20.R;
import net.ramastudio.sitara20.adapter.AdapterBerita;
import net.ramastudio.sitara20.model.BeritaItem;
import net.ramastudio.sitara20.model.ResponseBerita;
import net.ramastudio.sitara20.utils.api.ApiService;
import net.ramastudio.sitara20.utils.api.UtilsApi;

import java.util.List;

import butterknife.BindView;
import butterknife.ButterKnife;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;

/**
 * A simple {@link Fragment} subclass.
 */
public class Tab1 extends Fragment {
    @BindView(R.id.rv)
    RecyclerView rv;
    AdapterBerita adapterBerita;

    View v;

    public Tab1() {
        // Required empty public constructor
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        v = inflater.inflate(R.layout.fragment_tab1, container, false);
        ButterKnife.bind(this, v);

        // kalau pake findViewById
        // rv = v.findViewById(R.id.rv);

        rv.setLayoutManager(new LinearLayoutManager(getContext()));
//        rv.setLayoutManager(new GridLayoutManager(getContext(),2));
        tampilBerita();
        return v;
    }

    private void tampilBerita() {
        ApiService api = UtilsApi.getAPIService();

        Call<ResponseBerita> beritaCall = api.request_show_all_berita();

        beritaCall.enqueue(new Callback<ResponseBerita>() {
            @Override
            public void onResponse(Call<ResponseBerita> call, Response<ResponseBerita> response) {
                if (response.isSuccessful()) {
                    Log.d("response api", response.body().toString());
                    // tampung data response body ke variable
                    List<BeritaItem> dataBerita = response.body().getBerita();
                    boolean status = response.body().isStatus();
                    // Kalau response status nya = true
                    if (status) {
                        // Buat Adapter untuk recycler view
                         adapterBerita = new AdapterBerita(getContext(), dataBerita);
                        rv.setAdapter(adapterBerita);
                    } else {
                        // kalau tidak true
                        Toast.makeText(getContext(), "Tidak ada berita untuk saat ini", Toast.LENGTH_SHORT).show();
                    }
                }
            }

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

            }
        });
    }

}