activity_detail.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".DetailActivity">






</android.support.constraint.ConstraintLayout>

activity_main

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recycler_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:scrollbars="vertical" />


</android.support.constraint.ConstraintLayout>

DetailActivity.java

public class DetailActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_detail);











    }
}

hero_list

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginBottom="8dp"
    android:layout_marginLeft="8dp"
    android:layout_marginRight="8dp"
    android:layout_marginTop="8dp"
    android:paddingBottom="13dp">

    <TextView
        android:id="@+id/heroId"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_alignParentTop="true"
        android:layout_marginLeft="17dp"
        android:layout_marginStart="17dp"
        android:layout_marginTop="13dp"
        android:text="Hero Id"
        android:textColor="@color/colorPrimaryDark"
        android:textSize="18dp" />

    <TextView
        android:id="@+id/heroName"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/heroId"
        android:layout_alignStart="@+id/heroId"
        android:layout_below="@+id/heroId"
        android:text="Hero Name" />




</RelativeLayout>

LeovegasAdapter.java

public class LeovegasAdapter extends RecyclerView.Adapter<LeovegasAdapter.CustomViewHolder> implements Filterable {

    private List<Hero> heros;
    private List<Hero> filtarableList;

    public LeovegasAdapter(List<Hero> heros) {
        this.heros = heros;
        filtarableList = filtarableList;
    }

    @Override
    public CustomViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View itemView = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.hero_list, parent, false);

        return new CustomViewHolder(itemView);
    }

    @Override
    public void onBindViewHolder(CustomViewHolder holder, int position) {
        Hero hero = heros.get(position);
        holder.heroId.setText(hero.getId());
        holder.heroName.setText(hero.getName());
        holder.heroName.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

            }
        });

    }

    @Override
    public int getItemCount() {
        return heros.size();
    }


    @Override
    public Filter getFilter() {

        return new Filter() {
            @Override
            protected FilterResults performFiltering(CharSequence charSequence) {

                String charString = charSequence.toString();

                if (charString.isEmpty()) {

                    filtarableList = heros;
                } else {

                    ArrayList<Hero> filteredList = new ArrayList<>();

                    for (Hero hero : heros) {

                        if (hero.getId().toLowerCase().contains(charString) || hero.getName().toLowerCase().contains(charString)) {

                            filteredList.add(hero);
                        }
                    }

                    filtarableList = filteredList;
                }

                FilterResults filterResults = new FilterResults();
                filterResults.values = filtarableList;
                return filterResults;
            }

            @Override
            protected void publishResults(CharSequence constraint, FilterResults results) {
                filtarableList = (List<Hero>) results.values;
                notifyDataSetChanged();
            }
        };
    }

    public class CustomViewHolder extends RecyclerView.ViewHolder {
        public TextView heroId, heroName;

        public CustomViewHolder(View view) {
            super(view);
            heroId = (TextView) view.findViewById(R.id.heroId);
            heroName = (TextView) view.findViewById(R.id.heroName);


        }
    }
}

MainActivity.java

public class MainActivity extends AppCompatActivity {


   public LeovegasAdapter leovegasAdapter;


    public static final String publicKey = "4089ee37331d8211b080b047c58f6970";
    public static final String privateKey = "18ccbcb58fdd12c22821f8b633a06f2b433d16c3";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);


        LeoVegasInterface leoVegasInterface = LeoVegasClient.getApiService();
        String ts = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss").format(new Date());
        String hash = Hasher.md5(ts + privateKey + publicKey);
        Call<LeoVegas> callHeroes = leoVegasInterface.getHeroes(ts, publicKey, hash);

        callHeroes.enqueue(new Callback<LeoVegas>() {
            @Override
            public void onResponse(Call<LeoVegas> call, Response<LeoVegas> response) {
                LeoVegas leoVegas = response.body();
                Data data = leoVegas.getData();
                Hero[] heroes = data.getResults();
                RecyclerView recyclerView = (RecyclerView)findViewById(R.id.recycler_view);
                leovegasAdapter = new LeovegasAdapter(Arrays.asList(heroes));
                RecyclerView.LayoutManager eLayoutManager = new LinearLayoutManager(getApplicationContext());
                recyclerView.setLayoutManager(eLayoutManager);

                recyclerView.setAdapter(leovegasAdapter);
            }

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

            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {

        getMenuInflater().inflate(R.menu.menu_main, menu);

        MenuItem search = menu.findItem(R.id.search);
        SearchView searchView = (SearchView) MenuItemCompat.getActionView(search);
        search(searchView);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {

        return super.onOptionsItemSelected(item);
    }

    private void search(SearchView searchView) {

        searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
            @Override
            public boolean onQueryTextSubmit(String query) {

                LeoVegasInterface leoVegasInterface = LeoVegasClient.getApiService();
                String ts = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss").format(new Date());
                String hash = Hasher.md5(ts + privateKey + publicKey);
                Call<LeoVegas> callHeroes = leoVegasInterface.findHeroByName(ts, publicKey, hash, query);

                callHeroes.enqueue(new Callback<LeoVegas>() {
                    @Override
                    public void onResponse(Call<LeoVegas> call, Response<LeoVegas> response) {
                        LeoVegas leoVegas = response.body();
                        Data data = leoVegas.getData();
                        Hero[] heroes = data.getResults();
                        RecyclerView recyclerView = (RecyclerView)findViewById(R.id.recycler_view);
                        leovegasAdapter = new LeovegasAdapter(Arrays.asList(heroes));
                        RecyclerView.LayoutManager eLayoutManager = new LinearLayoutManager(getApplicationContext());
                        recyclerView.setLayoutManager(eLayoutManager);
                        recyclerView.setAdapter(leovegasAdapter);
                    }

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

                    }
                });

                return false;
            }

            @Override
            public boolean onQueryTextChange(String newText) {

                leovegasAdapter.getFilter().filter(newText);
                return true;
            }
        });
    }
}