Flutter WiFi管理插件flutter_cy_wifi的使用

发布于 1周前 作者 yibo5220 来自 Flutter

Flutter WiFi管理插件flutter_cy_wifi的使用

本插件flutter_cy_wifi是一个用于Flutter应用中管理和操作WiFi功能的插件。它提供了多种方法来检查WiFi状态、扫描附近的WiFi网络、连接到指定的WiFi网络以及断开WiFi连接等功能。

使用步骤

1. 添加依赖

pubspec.yaml文件中添加以下依赖:

dependencies:
  flutter_cy_wifi: ^版本号

然后运行以下命令以更新依赖:

flutter pub get

2. 初始化插件并检查WiFi状态

在Flutter应用中初始化插件,并检查设备的WiFi是否已启用。

示例代码:

import 'package:flutter/material.dart';
import 'dart:async';

import 'package:flutter/services.dart';
import 'package:flutter_cy_wifi/flutter_cy_wifi.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> {
  String _platformVersion = 'Unknown';
  bool _isWiFiEnable = false;

  final _flutterCyWifiPlugin = FlutterCyWifi();

  [@override](/user/override)
  void initState() {
    super.initState();
    initPlatformState(); // 获取平台版本
    checkWiFiEnable();   // 检查WiFi是否启用
    getWiFiConnectedInfo(); // 获取当前连接的WiFi信息
    startScan();         // 开始WiFi扫描
    connectWiFi();       // 尝试连接WiFi
    disconnectWiFi();    // 断开WiFi连接
  }

  // 获取平台版本
  Future<void> initPlatformState() async {
    String platformVersion;
    try {
      platformVersion = await _flutterCyWifiPlugin.getPlatformVersion() ?? 'Unknown platform version';
    } on PlatformException {
      platformVersion = 'Failed to get platform version.';
    }

    if (!mounted) return;

    setState(() {
      _platformVersion = platformVersion;
    });
  }

  // 检查WiFi是否启用
  Future<void> checkWiFiEnable() async {
    bool isEnable;
    try {
      isEnable = await _flutterCyWifiPlugin.checkWiFiEnable();
    } on PlatformException {
      isEnable = false;
    }

    if (!mounted) return;

    setState(() {
      _isWiFiEnable = isEnable;
    });
  }

  // 获取当前连接的WiFi信息
  Future<void> getWiFiConnectedInfo() async {
    Map<dynamic, dynamic>? wifiConnectedInfo;
    try {
      wifiConnectedInfo = await _flutterCyWifiPlugin.getWiFiConnectedInfo();
    } on PlatformException {
      wifiConnectedInfo = {};
    }

    print(wifiConnectedInfo);
  }

  // 开始WiFi扫描
  Future<void> startScan() async {
    List<dynamic>? scanResults;
    try {
      scanResults = await _flutterCyWifiPlugin.startScan();
    } on PlatformException {
      scanResults = [];
    }

    print(scanResults);
  }

  // 连接WiFi
  Future<void> connectWiFi() async {
    bool? connectResult = false;
    try {
      connectResult = await _flutterCyWifiPlugin.connectWiFi({
        'ssid': 'NAXCLOW',
        'bssid': '00:00:00:00:00:00',
        'password': '',
      });
    } on PlatformException {
      connectResult = false;
    }

    print('connect WiFi result: $connectResult');
  }

  // 断开WiFi连接
  Future<void> disconnectWiFi() async {
    bool? disconnectResult = false;
    try {
      disconnectResult = await _flutterCyWifiPlugin.disconnectWiFi({
        'ssid': 'NAXCLOW',
      });
    } on PlatformException {
      disconnectResult = false;
    }

    print('disconnect WiFi result: $disconnectResult');
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('WiFi Plugin Example'),
        ),
        body: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
            Text('Platform Version: $_platformVersion\n'),
            Text('WiFi Enabled: $_isWiFiEnable\n'),
          ],
        ),
      ),
    );
  }
}

更多关于Flutter WiFi管理插件flutter_cy_wifi的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html

1 回复

更多关于Flutter WiFi管理插件flutter_cy_wifi的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html


flutter_cy_wifi 是一个用于管理 Wi-Fi 连接的 Flutter 插件。它可以帮助你在 Flutter 应用中扫描、连接、断开 Wi-Fi 网络,以及获取当前连接的 Wi-Fi 信息。以下是如何使用 flutter_cy_wifi 插件的基本步骤:

1. 添加依赖

首先,你需要在 pubspec.yaml 文件中添加 flutter_cy_wifi 插件的依赖:

dependencies:
  flutter:
    sdk: flutter
  flutter_cy_wifi: ^0.0.1  # 请使用最新的版本号

然后运行 flutter pub get 来获取依赖。

2. 导入插件

在你的 Dart 文件中导入 flutter_cy_wifi 插件:

import 'package:flutter_cy_wifi/flutter_cy_wifi.dart';

3. 使用插件

3.1 获取 Wi-Fi 状态

你可以使用 FlutterCyWifi.getWifiState() 来获取当前 Wi-Fi 的状态:

void checkWifiState() async {
  String wifiState = await FlutterCyWifi.getWifiState();
  print('Wi-Fi State: $wifiState');
}

3.2 扫描 Wi-Fi 网络

使用 FlutterCyWifi.scanWifi() 来扫描附近的 Wi-Fi 网络:

void scanWifi() async {
  List<WifiInfo> wifiList = await FlutterCyWifi.scanWifi();
  wifiList.forEach((wifi) {
    print('SSID: ${wifi.ssid}, BSSID: ${wifi.bssid}, Signal Strength: ${wifi.level}');
  });
}

3.3 连接到 Wi-Fi 网络

使用 FlutterCyWifi.connectToWifi(ssid, password) 来连接到一个 Wi-Fi 网络:

void connectToWifi() async {
  String ssid = 'YourNetworkSSID';
  String password = 'YourNetworkPassword';
  bool result = await FlutterCyWifi.connectToWifi(ssid, password);
  if (result) {
    print('Connected to $ssid');
  } else {
    print('Failed to connect to $ssid');
  }
}

3.4 断开 Wi-Fi 连接

使用 FlutterCyWifi.disconnectWifi() 来断开当前的 Wi-Fi 连接:

void disconnectWifi() async {
  bool result = await FlutterCyWifi.disconnectWifi();
  if (result) {
    print('Disconnected from Wi-Fi');
  } else {
    print('Failed to disconnect from Wi-Fi');
  }
}

3.5 获取当前连接的 Wi-Fi 信息

使用 FlutterCyWifi.getCurrentWifiInfo() 来获取当前连接的 Wi-Fi 信息:

void getCurrentWifiInfo() async {
  WifiInfo wifiInfo = await FlutterCyWifi.getCurrentWifiInfo();
  print('Connected to SSID: ${wifiInfo.ssid}, BSSID: ${wifiInfo.bssid}, Signal Strength: ${wifiInfo.level}');
}

4. 处理权限

在 Android 上,使用 Wi-Fi 功能需要以下权限:

<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

确保在 AndroidManifest.xml 文件中添加这些权限。

5. 处理 iOS 配置

在 iOS 上,你需要在 Info.plist 文件中添加以下键值对以请求位置权限:

<key>NSLocationWhenInUseUsageDescription</key>
<string>We need your location to scan for Wi-Fi networks.</string>
<key>NSLocationAlwaysUsageDescription</key>
<string>We need your location to scan for Wi-Fi networks.</string>

6. 错误处理

在使用插件时,确保处理可能出现的异常和错误:

void connectToWifi() async {
  try {
    String ssid = 'YourNetworkSSID';
    String password = 'YourNetworkPassword';
    bool result = await FlutterCyWifi.connectToWifi(ssid, password);
    if (result) {
      print('Connected to $ssid');
    } else {
      print('Failed to connect to $ssid');
    }
  } catch (e) {
    print('Error: $e');
  }
}

7. 注意事项

  • 由于涉及到 Wi-Fi 和位置权限,确保在应用中正确处理权限请求。
  • 插件的功能可能因平台而异,确保在 Android 和 iOS 上测试你的应用。

8. 参考

你可以访问 flutter_cy_wifi 的 GitHub 页面 获取更多信息和示例代码。

9. 示例代码

以下是一个完整的示例代码,展示了如何使用 flutter_cy_wifi 插件:

import 'package:flutter/material.dart';
import 'package:flutter_cy_wifi/flutter_cy_wifi.dart';

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

class MyApp extends StatelessWidget {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: WifiManagerScreen(),
    );
  }
}

class WifiManagerScreen extends StatelessWidget {
  void checkWifiState() async {
    String wifiState = await FlutterCyWifi.getWifiState();
    print('Wi-Fi State: $wifiState');
  }

  void scanWifi() async {
    List<WifiInfo> wifiList = await FlutterCyWifi.scanWifi();
    wifiList.forEach((wifi) {
      print('SSID: ${wifi.ssid}, BSSID: ${wifi.bssid}, Signal Strength: ${wifi.level}');
    });
  }

  void connectToWifi() async {
    try {
      String ssid = 'YourNetworkSSID';
      String password = 'YourNetworkPassword';
      bool result = await FlutterCyWifi.connectToWifi(ssid, password);
      if (result) {
        print('Connected to $ssid');
      } else {
        print('Failed to connect to $ssid');
      }
    } catch (e) {
      print('Error: $e');
    }
  }

  void disconnectWifi() async {
    bool result = await FlutterCyWifi.disconnectWifi();
    if (result) {
      print('Disconnected from Wi-Fi');
    } else {
      print('Failed to disconnect from Wi-Fi');
    }
  }

  void getCurrentWifiInfo() async {
    WifiInfo wifiInfo = await FlutterCyWifi.getCurrentWifiInfo();
    print('Connected to SSID: ${wifiInfo.ssid}, BSSID: ${wifiInfo.bssid}, Signal Strength: ${wifiInfo.level}');
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Wi-Fi Manager'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            ElevatedButton(
              onPressed: checkWifiState,
              child: Text('Check Wi-Fi State'),
            ),
            ElevatedButton(
              onPressed: scanWifi,
              child: Text('Scan Wi-Fi'),
            ),
            ElevatedButton(
              onPressed: connectToWifi,
              child: Text('Connect to Wi-Fi'),
            ),
            ElevatedButton(
              onPressed: disconnectWifi,
              child: Text('Disconnect Wi-Fi'),
            ),
            ElevatedButton(
              onPressed: getCurrentWifiInfo,
              child: Text('Get Current Wi-Fi Info'),
            ),
          ],
        ),
      ),
    );
  }
}
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