public class DishesActivity extends AppCompatActivity {

    private GridLayoutManager lLayout;
    public static final String categoryIdField = "categoryId";

    private static RealmResults<Dish> dishes;
    private Realm realm;

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

        //настройка REALM
        realm = Realm.getDefaultInstance();

        lLayout = new GridLayoutManager(DishesActivity.this, 2);

        Intent intent = getIntent();
        int categoryId = intent.getIntExtra(CategoryId, 0);
        dishes = realm.where(Dish.class).equalTo(categoryIdField, categoryId).findAll();

      initRecyclerView();

    }

    public void initRecyclerView() {
        //отображаем данные в RecyclerView
        RecyclerView rView = (RecyclerView)findViewById(R.id.recycler_view_dishes);
        rView.setHasFixedSize(true);
        rView.setLayoutManager(lLayout);

        RecyclerViewDishAdapter rcAdapter = new RecyclerViewDishAdapter(DishesActivity.this, dishes);
        rView.setAdapter(rcAdapter);
    }

    public static RealmResults<Dish> getDishes() {
        return dishes;
    }
}

public class DishActivity extends AppCompatActivity {

    private ImageView imageView;
    private TextView textViewRu;

    private Context context;

    private RealmResults<Dish> dishes;
    private Realm realm;

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

        imageView = (ImageView) findViewById(R.id.dishImageView);
        textViewRu = (TextView) findViewById(R.id.textViewRu);

        Intent intent = getIntent();
        int dishIntentId = intent.getIntExtra(CategoryId, 0);

        context = getApplicationContext();

        //настройка REALM
        realm = Realm.getDefaultInstance();

        dishes = DishesActivity.getDishes();
        textViewRu.setText(dishes.get(dishIntentId).getTitleRu());
        Glide.with(context).load(dishes.get(dishIntentId).getImgUrl()).into(imageView);

        Toolbar dishToolBar = (Toolbar) findViewById(R.id.dish_toolbar);
        setSupportActionBar(dishToolBar);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setDisplayShowHomeEnabled(true);
        getSupportActionBar().setTitle(dishes.get(dishIntentId).getTitleRu());
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {

        int id = item.getItemId();
        if(id == android.R.id.home) {
            this.finish();
        }

        return super.onOptionsItemSelected(item);
    }
}

public class RecyclerViewDishHolders extends RecyclerView.ViewHolder implements View.OnClickListener {

    public TextView titleRu;
    public TextView titleEng;
    public ImageView categoryImage;
    private Context context;

    public static final String DISH_ID = "DISH_ID";

    public RecyclerViewDishHolders(View itemView) {
        super(itemView);
        itemView.setOnClickListener(this);
        titleRu = (TextView)itemView.findViewById(R.id.textViewTitleRu);
        titleEng = (TextView)itemView.findViewById(R.id.textViewTitleEng);
        categoryImage = (ImageView)itemView.findViewById(R.id.imageViewCategory);
        categoryImage.setAdjustViewBounds(true);
        context = itemView.getContext();
    }

    @Override
    public void onClick(View view) {
        int itemViewPosition = getAdapterPosition();
        Toast.makeText(view.getContext(), "Clicked Dish Position = " + itemViewPosition, Toast.LENGTH_SHORT).show();
        Intent intent = new Intent(context, DishActivity.class);
        intent.putExtra(DISH_ID, itemViewPosition);
        context.startActivity(intent);
    }
}

public class RecyclerViewDishAdapter extends
RecyclerView.Adapter<RecyclerViewDishHolders> {
    private List<Dish> itemList;
    private Context context;

    public RecyclerViewDishAdapter(Context context, List<Dish> itemList) {
        this.itemList = itemList;
        this.context = context;
    }

    @Override
    public RecyclerViewDishHolders onCreateViewHolder(ViewGroup parent, int viewType) {
        View layoutView = LayoutInflater.from(parent.getContext()).inflate(R.layout.category_view_list, null);
        RecyclerViewDishHolders rcv = new RecyclerViewDishHolders(layoutView);
        return rcv;
    }

    @Override
    public void onBindViewHolder(RecyclerViewDishHolders holder, int position) {
        holder.titleRu.setText(itemList.get(position).getTitleRu());
        holder.titleEng.setText(itemList.get(position).getTitleEng());
        Glide.with(context).load(itemList.get(position).getImgUrl()).into(holder.categoryImage);
    }

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