public class MainActivity extends AppCompatActivity {

    ArrayList<Mascotas> mascotasList;
    private RecyclerView mascotaRecycler;

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

        Toolbar actionBar = findViewById(R.id.miactionbar);
        setSupportActionBar(actionBar);

        favoritas = findViewById(R.id.favoritasCinco);
        favoritas.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {



               // Snackbar.make(v,"Vas alas cinco favoritas", Snackbar.LENGTH_SHORT).show();
                Intent i = new Intent(MainActivity.this, MascotasFavoritas.class);

                startActivity(i);
            }
        });

        mascotaRecycler = findViewById(R.id.recyclerMascotas);

        LinearLayoutManager llmanager = new LinearLayoutManager(this);
        llmanager.setOrientation(LinearLayoutManager.VERTICAL);
        mascotaRecycler.setLayoutManager(llmanager);

        inicializarLista();
        inicializarAdaptador();

    }



     public void inicializarLista(){

        mascotasList = new ArrayList<Mascotas>();

        mascotasList.add(new Mascotas(R.drawable.loro,"Coti el loro"));
        mascotasList.add(new Mascotas(R.drawable.hamster,"El Ghamster"));
        mascotasList.add(new Mascotas(R.drawable.tortuga,"Turtle Ninja"));
        mascotasList.add(new Mascotas(R.drawable.perro,"Mochi"));
        mascotasList.add(new Mascotas(R.drawable.conejo,"Bonny"));


    }

     public MascotasAdapter adapter;
    public void inicializarAdaptador(){
        adapter = new MascotasAdapter(mascotasList);
        mascotaRecycler.setAdapter(adapter);
    }

}

public class MascotasAdapter extends RecyclerView.Adapter<MascotasAdapter.MascotasViewHolder>{

    ArrayList<Mascotas> mascotas;
    Activity activity;
    TextView contador;

    public  MascotasAdapter(ArrayList<Mascotas> mascotas){
        this.mascotas = mascotas;
    }

    public MascotasAdapter(ArrayList<Mascotas> mascotasArrayList, Activity activity, TextView contador){
        this.mascotas = mascotasArrayList;
        this.activity = activity;
        this.contador = contador;
    }


    @Override
    public MascotasViewHolder onCreateViewHolder( ViewGroup parent, int viewType) {
        //Inflo el layout que usaré en el recylcerView
        View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.card_mascotas, parent, false);
        return new MascotasViewHolder(v);
    }

    @Override
    public void onBindViewHolder(final MascotasViewHolder mascotasHolder, int position) {

        final Mascotas mascotasList = mascotas.get(position);

        mascotasHolder.imFoto.setImageResource(mascotasList.getIvFoto());
        mascotasHolder.textNombre.setText(mascotasList.getNombre());

        mascotasHolder.ibDarLike.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Snackbar.make(v,"Diste like a "+ mascotasList.getNombre(),Snackbar.LENGTH_SHORT).show();
                int plusLike = Integer.parseInt(mascotasHolder.textCantidadLikes.getText().toString());
                mascotasHolder.textCantidadLikes.setText(String.valueOf(plusLike + 1));

            }
        });


    }

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

    public static class MascotasViewHolder extends RecyclerView.ViewHolder {

        private ImageView imFoto;
        private TextView textNombre;
        private ImageButton ibDarLike;
        private TextView textCantidadLikes;
        //Context context;

        public MascotasViewHolder(View itemView) {

            super(itemView);
            //context = itemView.getContext();
            imFoto = itemView.findViewById(R.id.ivFoto);
            textNombre = itemView.findViewById(R.id.tvNombre);

            textCantidadLikes = itemView.findViewById(R.id.tvCantidad);
            ibDarLike = itemView.findViewById(R.id.ibPuntuar);


        }



    }



}

public class MascotasFavoritas extends AppCompatActivity {

    ArrayList<Mascotas> favoritasList;
    private RecyclerView favoritasRecycler;

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

        Toolbar miActionBar = findViewById(R.id.barFavoritas);
        setSupportActionBar(miActionBar);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setDisplayShowHomeEnabled(true);

        favoritasRecycler = findViewById(R.id.recyclerFavoritas);

        LinearLayoutManager llmfav = new LinearLayoutManager(this);
        llmfav.setOrientation(LinearLayoutManager.VERTICAL);
        favoritasRecycler.setLayoutManager(llmfav);

        inicializarFavoritas();
        inicializarAdaptador();



    }

    void inicializarFavoritas(){
        favoritasList = new ArrayList<Mascotas>();

        favoritasList.add(new Mascotas(R.drawable.perro,"Mochi"));
        favoritasList.add(new Mascotas(R.drawable.conejo,"Bonny"));
        favoritasList.add(new Mascotas(R.drawable.loro,"Coti el loro"));
        favoritasList.add(new Mascotas(R.drawable.hamster,"El Ghamster"));
        favoritasList.add(new Mascotas(R.drawable.tortuga,"Turtle Ninja"));

    }

    public MascotasAdapter adapter;
    public void inicializarAdaptador(){
        adapter = new MascotasAdapter(favoritasList);
        favoritasRecycler.setAdapter(adapter);
    }

}

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    xmlns:cardView="http://schemas.android.com/apk/res-auto"
    android:id="@+id/cvMascotas"
    cardView:cardCornerRadius="@dimen/esquinasCardV"
    android:layout_marginBottom="@dimen/margenBottom"
    android:layout_marginLeft="@dimen/margenBottom"
    android:layout_marginRight="@dimen/margenTop"
    android:layout_marginTop="@dimen/margenTop"
    cardView:cardElevation="@dimen/cardview_default_elevation"
    >
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/llvertical"
        android:orientation="vertical">

       <ImageView
           android:layout_width="match_parent"
           android:layout_height="wrap_content"
           android:src="@drawable/loro"
           android:id="@+id/ivFoto"
           android:background="@color/fondoImagen"/>
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/llhorizontal"
            android:orientation="horizontal"
            >

            <ImageButton
                android:layout_width="@dimen/anchoIcono"
                android:layout_height="@dimen/anchoIcono"
                android:id="@+id/ibPuntuar"
                android:src="@drawable/icons8_enamorado_80"
                android:background="@color/fondoImagen"
                android:scaleType="centerCrop"
                android:layout_marginLeft="@dimen/margenDeIcono"/>

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:id="@+id/tvNombre"
                android:text="@string/nombreMascota"
                android:textSize="@dimen/tamañoNumero"
                android:gravity="center"
                android:textStyle="bold"
                android:layout_marginRight="@dimen/margenDelMedio"
                />
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal"
                android:id="@+id/llinterior"
                android:gravity="right">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="match_parent"
                    android:id="@+id/tvCantidad"
                    android:text="@string/numeroXdefecto"
                    android:gravity="center"
                    android:textSize="@dimen/tamañoNumero"
                    android:textStyle="bold"
                    android:layout_marginRight="@dimen/margenDeIcono"
                    />

                <ImageView
                    android:layout_width="@dimen/anchoIcono"
                    android:layout_height="@dimen/anchoIcono"
                    android:id="@+id/ivCaritaColor"
                    android:src="@drawable/icons8_enamorado_96"
                    android:layout_marginRight="@dimen/margenDeIcono"
                    />

            </LinearLayout>

        </LinearLayout>

    </LinearLayout>

</android.support.v7.widget.CardView>