您传递的位置参数太多。如果参数在大括号中声明，如title和subtitle，则在调用方法时必须使用其名称。您也没有传递BuildContext，它是唯一一个没有在大括号中声明的参数。
将其更改为：

return _tile(
    context, 
    title: data[index].ssid,
    subtitle: data[index].auth,
    icon: Icons.wifi
);

您正在使用一个位置参数和4个必需的名称参数。

tTile _tile(BuildContext context,
          {required String title,
          required String subtitle,
          required IconData icon}) =>

您需要传递如下数据

return _tile(
        context,
        subtitle:data[index].ssid,
        title: data[index].auth,
        icon: Icons.wifi,
      );

有关使用using-constructor的详细信息

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


void main() {
  runApp(
    const JobsListView(),
  );
}

class Job {
  final String ssid;
  final String auth;
  final String encry;

  Job({required this.ssid, required this.auth,required this.encry});

  factory Job.fromJson(Map<String, dynamic> json) {
    return Job(
      ssid: json['ssid'],
      auth: json['auth'],
      encry: json['encry'],
    );
  }
}

class JobsListView extends StatelessWidget {
  const JobsListView({Key? key}) : super(key: key);

  Future<List<Job>> _fetchJobs() async {
    final response = await http
        .get(
        Uri.parse('http://10.10.10.254/httpapi.asp?command=wlanGetApListEx'));

    if (response.statusCode == 200) {
      final List jsonResponse = json.decode(response.body)['aplist'] as List;
      return jsonResponse.map((job) =>  Job.fromJson(job)).toList();
    } else {
      throw Exception('Failed to load jobs from API');
    }
  }



  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: 
      Scaffold(
        appBar: AppBar(
          title: const Text('Finding your available networks',
              style: TextStyle(color: Colors.black87)),

          titleSpacing: 00.0,
          centerTitle: true,
          toolbarHeight: 60.2,
          toolbarOpacity: 0.6,
          shape: const RoundedRectangleBorder(
            borderRadius: BorderRadius.only(
                bottomRight: Radius.circular(25),
                bottomLeft: Radius.circular(25)),
          ),
          elevation: 0.00,
          backgroundColor: Colors.transparent,

        ),
        body: SafeArea(
          child: Column(
            children: <Widget>[
              Expanded(
                child: FutureBuilder<List<Job>>(
                  future: _fetchJobs(),
                  builder: (context, snapshot) {
                    if (snapshot.hasData) {
                      List<Job> data = snapshot.data ?? [];
                      return _jobsListView(data);
                    } else if (snapshot.hasError) {
                      return Text("${snapshot.error}");
                    }
                    return Container(
                      alignment: Alignment.topCenter,
                      margin: const EdgeInsets.only(top: 400),
                      child: const CircularProgressIndicator(
                        backgroundColor: Colors.grey,
                        color: Colors.black,
                      ),
                    );
                  },
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }


  ListView _jobsListView(data) {
    return ListView.builder(
        itemCount: data.length,
        itemBuilder: (context, index) {
          return _tile(context,  data[index].ssid, data[index].auth ,Icons.wifi);
        });
  }

  ListTile _tile(BuildContext context,  String title, String subtitle, IconData icon) =>
      ListTile(
        title: Text(title,
            style: const TextStyle(
              fontWeight: FontWeight.w500,
              fontSize: 20,
            )),
        subtitle: Text(subtitle),
        leading: Icon(
          icon,
          color: Colors.grey[500],
        ),
        trailing: const Icon(
          Icons.arrow_forward_ios,
        ),
        onTap: ()

        {
          Navigator.pushNamed(context, '/fifth');
        },





        //Navigator.pushNamed(context, '/fifth'),

        // => print('on tap'),
        //TO DO: Pass the arguments selected to the next screen, and insert it into the URI
        //TO DO:Hex to ASCII.
      );
}

现在应该能用了