item_cart_spinner.xml

<Spinner
    android:id="@+id/item_quantity_spinner"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginStart="8dp"
    android:background="@drawable/ic_spinner_bg"
    android:gravity="center_vertical"
    android:paddingStart="4dp"
    android:textSize="16sp"
    app:entries="@{model.quantityEntries}"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintStart_toEndOf="@id/item_image"
    app:newValue="@{model.quantity}"
    app:onItemSelected="@{(newValue) -> presenter.onItemQuantityChange(model.cartItem, Converter.toInt(newValue))}" />