Flutter无线网络扫描插件wifi_scan_desktop的使用

Flutter无线网络扫描插件wifi_scan_desktop的使用

该插件允许Flutter应用程序在Windows和macOS上扫描附近的可见WiFi接入点。

使用

要使用此插件，请将wifi_scan_desktop作为依赖项添加到您的pubspec.yaml文件中：

dependencies:
  wifi_scan_desktop: ^x.x.x

开始扫描

您可以使用performScan API异步启动全WiFi扫描，如下面的示例所示：

void _scan() async {
  WifiScanDesktop _wifiScanDesktopPlugin = WifiScanDesktop();
  // 异步开始全扫描
  _wifiScanDesktopPlugin.performScan((data) async {
    // 扫描完成
    debugPrint("Scan Completed $data");
  }, (error) {
    // 扫描完成但出现错误
    debugPrint(error);
  });
}

获取扫描结果

您可以使用getAvailableNetworks API获取扫描结果，如下面的示例所示：

void _getAvailableNetworks() async {
  // 获取扫描结果
  List<AvailableNetwork>? result = await _wifiScanDesktopPlugin.getAvailableNetworks();
  // 处理结果
  if (result != null) {
    debugPrint("Available Networks: ${result.length}");
  } else {
    debugPrint("No networks found.");
  }
}

完整示例

以下是一个完整的示例演示如何使用wifi_scan_desktop插件来扫描和显示附近的WiFi网络：

import 'dart:core';

import 'package:flutter/material.dart';
import 'package:wifi_scan_desktop/wifi_info.dart';
import 'package:wifi_scan_desktop/wifi_scan_desktop.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatefulWidget {
  const MyApp({super.key});

  [@override](/user/override)
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  List<WifiInfo> availableNetworks = [];
  final WifiScanDesktop _wifiScanDesktopPlugin = WifiScanDesktop();

  [@override](/user/override)
  void initState() {
    super.initState();
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('WiFi扫描示例应用'),
          actions: [
            ElevatedButton(
                onPressed: () async {
                  List<WifiInfo>? result =
                      await _wifiScanDesktopPlugin.getAvailableNetworks();
                  setState(() {
                    availableNetworks = result ?? [];
                  });
                },
                child: const Text("获取网络")),
          ],
        ),
        body: Column(
          children: [
            Expanded(
              child: ListView.builder(
                itemCount: availableNetworks.length,
                itemBuilder: (context, index) {
                  return ListTile(
                    title: Text('SSID: ${availableNetworks[index].ssid}'),
                    subtitle: Text('RSSI: ${availableNetworks[index].rssi}'),
                  );
                },
              ),
            ),
          ],
        ),
        floatingActionButton: FloatingActionButton.extended(
            onPressed: () async {
              _wifiScanDesktopPlugin.performScan((data) async {
                debugPrint("Scan Completed $data");
              }, (error) {
                debugPrint(error);
              });
            },
            label: const Text('扫描')),
      ),
    );
  }
}