Aplicación #1 - PizzaListActivity con ItemClicklistener

PizzaListActivity.java

public class PizzaListActivity extends AppCompatActivity {

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

        RecyclerView recyclerView = findViewById(R.id.recycler_view);
        List<Pizza> pizzaList = new ArrayList<>();

        Pizza pizza_margherita = new Pizza("Margherita",R.drawable.pizza3,"Tomate,Mozzarella,Albahaca,sal,aceite");
        pizzaList.add(pizza_margherita);
        Pizza pizza_marinara = new Pizza("Marinara",R.drawable.pizza2,"Tomate,Aceite,Ajo y oregano");
        pizzaList.add(pizza_marinara);
        Pizza pizza_salciccia = new Pizza ("Pizza alle salciccia",R.drawable.pizza2,"Tomate,Mozzarella,Albahaca,aceite,salchichas");
        pizzaList.add(pizza_salciccia);

        CustomAdapter customAdapter = new CustomAdapter(pizzaList, new OnRecyclerViewItemClickListener() {
            @Override
            public void onItemClick(Pizza pizza_selected) {
                Toast.makeText(PizzaListActivity.this, pizza_selected.getDescription(), Toast.LENGTH_SHORT).show();
            }
        });

        RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(this);
        recyclerView.setLayoutManager(mLayoutManager);
        recyclerView.setItemAnimator(new DefaultItemAnimator());
        recyclerView.addItemDecoration(new DividerItemDecoration(this, LinearLayoutManager.VERTICAL));
        recyclerView.setAdapter(customAdapter);

    }
}