提取网络图片的颜色色值

import 'package:flutter/material.dart';
import 'package:palette_generator/palette_generator.dart';
import 'package:http/http.dart' as http;

Future<PaletteGenerator> generatePaletteFromImageUrl(String imageUrl) async {
  final response = await http.get(Uri.parse(imageUrl));
  final bytes = response.bodyBytes;
  final image = await decodeImageFromList(bytes);
  return PaletteGenerator.fromImage(image);
}