图像资源服务捕获的异常 (handshake.cc:359)

Question

Flutter 无法加载我的图像并且出现错误，这是什么问题，我该如何解决？ ：

═══════ Exception caught by image resource service ══════════════════

Handshake error in client (OS Error:CERTIFICATE_VERIFY_FAILED: self signed certificate(handshake.cc:359))

我将 IOClient 用于 HttpClient

import 'package:cached_network_image/cached_network_image.dart';

  IOClient get _client => IOClient(HttpClient()
    ..connectionTimeout = Duration(seconds: 30)
    ..idleTimeout = Duration(seconds: 30)
    ..badCertificateCallback =
        (X509Certificate cert, String host, int port) => true);

       CachedNetworkImage(
                  imageUrl: item.thumbnail,
                  fit: BoxFit.cover,
                  httpHeaders: {
                       'Authorization':
                       'Bearer ${authProvider.token}',
                                },
                      errorWidget: (context, _, __) =>
                              Center(
                               child: Icon(
                                 Icons.broken_image_rounded,
                                   size: 28.0,
                                   color: Colors.black54,
                          ),
                         ),
                        )

Answer 1

在 main.dart 文件中，添加如下类：

class MyHttpOverrides extends HttpOverrides {
  @override
  HttpClient createHttpClient(SecurityContext context) {
    return super.createHttpClient(context)
      ..badCertificateCallback =
          (X509Certificate cert, String host, int port) = true;
  }
}

并添加到主方法：

HttpOverrides.global = new MyHttpOverrides();