Flutter 一些用户在颤振时收到socketException

为什么总是出现SocketException？有时它是有效的。我的密码里有什么吗

如何找到确切的错误

 class ApiProvider {

  final http.Client client;

  ApiProvider({HttpClient client}) : this.client = client ?? http.Client();

  Future<dynamic> sendBook(Map data) async {

    var responseJson;
    var uri = Uri.parse('$url');
    uri = uri.replace(queryParameters: data);

    try {
      final response = await http.post(uri);
      responseJson = _response(response);
      return responseJson;
    } on SocketException {
      //Is there any way to find what is this error?
      throw FetchDataException('Something Happening, Please try again!');
    }
  }

---

要获得准确的错误代码，您必须更改SocketException{上的行以捕获e，s{其中e是引发的异常，s是异常的堆栈跟踪。要获得准确的错误代码，您必须更改SocketException{上的行以捕获e，s{其中e是引发的异常，s是异常的堆栈跟踪。

void main() async {
  HttpOverrides.global = OBHttpOverrides();