flutter 网络图片加载优化

dependencies:
  cached_network_image: ^3.2.0

import 'package:cached_network_image/cached_network_image.dart';
import 'package:flutter/material.dart';

class MyImage extends StatelessWidget {
  final String imageUrl;

  MyImage({required this.imageUrl});

  @override
  Widget build(BuildContext context) {
    return CachedNetworkImage(
      imageUrl: imageUrl,
      placeholder: (context, url) => CircularProgressIndicator(),
      errorWidget: (context, url, error) => Icon(Icons.error),
    );
  }
}

FadeInImage.assetNetwork(
  placeholder: 'assets/low_quality_image.jpg',
  image: imageUrl,
  fit: BoxFit.cover,
);

import 'package:flutter/material.dart';

void preloadImages(List<String> imageUrls) {
  imageUrls.forEach((url) {
    precacheImage(NetworkImage(url), context);
  });
}