Fragment

package page;

import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.Fragment;
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 com.transvision.bertho.R;

import java.util.ArrayList;
import java.util.List;

import adapter.ChannelAdapter;
import model.Channel;
import model.ChannelResponse;
import rest.ApiClient;
import rest.ApiInterface;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;


public class HomeFragment extends Fragment {

    private RecyclerView recyclerView;
    private static final String TAG = HomeFragment.class.getSimpleName();

    private ChannelAdapter adapter;
    List<Channel> listChannel = new ArrayList<Channel>();

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        View rootView = inflater.inflate(R.layout.fragment_home, container, false);

        adapter = new ChannelAdapter (listChannel, R.layout.list_channel, getActivity());
//
//        recyclerView = (RecyclerView) rootView.findViewById(R.id.movies_recycler_view);
//        recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
//        recyclerView.setAdapter(adapter);

        final RecyclerView recyclerView = (RecyclerView) rootView.findViewById(R.id.movies_recycler_view);
        recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
        recyclerView.setAdapter(adapter);

        ApiInterface apiService = ApiClient.getChannel().create(ApiInterface.class);
        Call<ChannelResponse> call = apiService.getItems();

        call.enqueue(new Callback<ChannelResponse>() {
            @Override
            public void onResponse(Call<ChannelResponse> call, Response<ChannelResponse> response) {
//                recyclerView.setAdapter(new ChannelAdapter(channel, R.layout.list_channel, getActivity()));

                int statusCode = response.code();
//                listChannel = response.body().getItems();
                List<Channel> channel = response.body().getItems();
                recyclerView.setAdapter(new ChannelAdapter(channel, R.layout.list_channel, getActivity()));
//                adapter.notifyDataSetChanged();

                Log.e(TAG, "CONNECTION SUCCESS");
            }

            @Override
            public void onFailure(Call<ChannelResponse> call, Throwable t) {
                // Log error here since request failed
                Log.e(TAG, t.toString());
                showToast("CONNECTION ERROR");
            }
        });

        return rootView;
    }

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
    }

    @Override
    public void onDetach() {
        super.onDetach();
    }

    public void getChannelData() {

    }

    public void showToast(String output){
        Toast.makeText(getActivity(), output, Toast.LENGTH_SHORT).show();
    }
}