如何将照片动态添加到flutter carousel？

dependencies:
  flutter:
    sdk: flutter
  carousel_slider: ^4.0.0

import 'package:carousel_slider/carousel_slider.dart';

List<String> photoList = [
  'https://example.com/photo1.jpg',
  'https://example.com/photo2.jpg',
  'https://example.com/photo3.jpg',
];

CarouselSlider(
  options: CarouselOptions(
    height: 200.0,
    enlargeCenterPage: true,
    autoPlay: true,
    autoPlayInterval: Duration(seconds: 3),
  ),
  items: photoList.map((photoUrl) {
    return Builder(
      builder: (BuildContext context) {
        return Container(
          width: MediaQuery.of(context).size.width,
          margin: EdgeInsets.symmetric(horizontal: 5.0),
          decoration: BoxDecoration(
            color: Colors.grey,
          ),
          child: Image.network(
            photoUrl,
            fit: BoxFit.cover,
          ),
        );
      },
    );
  }).toList(),
)