Flutter 鸿蒙WiFi信息获取实现权限处理与信息读取欢迎加入开源鸿蒙跨平台社区 https://openharmonycrossplatform.csdn.net效果展示WiFi信息演示连接信息SSID (网络名称)BSSID (MAC地址)IP地址网关地址子网掩码DNS服务器网络详情信号强度频率/频段链路速度信道安全类型网络扫描可用网络网络列表信号强度安全类型频段信息实现步骤1. WiFi管理器实现核心类设计classWifiManager{staticfinalWifiManager_instanceWifiManager._internal();factoryWifiManager()_instance;FutureWifiInfogetWifiInfo()async{finalinfoawaitWifiInfoPlugin.wifiInfo;returnWifiInfo(ssid:info.ssid,bssid:info.bssid,ipAddress:info.ipAddress,gateway:info.gateway,);}FutureListWifiNetworkscanNetworks()async{returnawaitWifiInfoPlugin.scanResults;}}2. 权限处理WiFi权限FutureboolrequestWifiPermission()async{if(Platform.isAndroid){finallocationStatusawaitPermission.location.request();if(!locationStatus.isGranted){returnfalse;}// Android 13 需要附近WiFi设备权限if(awaitPermission.nearbyWifiDevices.request().isGranted){returntrue;}}returntrue;}3. 连接信息获取信息读取FuturevoidloadWifiInfo()async{try{finalinfoawaitWifiInfoPlugin.wifiInfo;setState((){ssidinfo.ssid??Unknown;bssidinfo.bssid??Unknown;ipAddressinfo.ipAddress??Unknown;gatewayinfo.gateway??Unknown;signalStrengthinfo.signalStrength??0;frequencyinfo.frequency??0;linkSpeedinfo.linkSpeed??0;});}catch(e){print(获取WiFi信息失败:$e);}}4. 网络扫描扫描实现FuturevoidscanNetworks()async{setState((){isScanningtrue;availableNetworks.clear();});try{finalnetworksawaitWifiInfoPlugin.scanResults;setState((){availableNetworksnetworks.map((n)WifiNetwork(ssid:n.ssid,bssid:n.bssid,rssi:n.signalStrength,frequency:n.frequency,security:n.security,)).toList();});}finally{setState((){isScanningfalse;});}}功能特性1. 连接状态状态显示WidgetbuildStatusCard(){returnCard(child:Row(children:[Icon(isConnected?Icons.wifi:Icons.wifi_off,color:isConnected?Colors.green:Colors.red,),Text(isConnected?已连接:未连接),if(isConnected)Text(ssid),],),);}2. 网络详情详情模型classWifiInfo{finalStringssid;finalStringbssid;finalStringipAddress;finalStringgateway;finalStringsubnetMask;finalStringdns1;finalStringdns2;finalint signalStrength;finalint frequency;finalint linkSpeed;finalStringsecurity;finalStringchannel;WifiInfo({requiredthis.ssid,requiredthis.bssid,requiredthis.ipAddress,requiredthis.gateway,requiredthis.subnetMask,requiredthis.dns1,requiredthis.dns2,requiredthis.signalStrength,requiredthis.frequency,requiredthis.linkSpeed,requiredthis.security,requiredthis.channel,});}3. 信号强度强度显示ColorgetSignalColor(int rssi){if(rssi-50)returnColors.green;if(rssi-60)returnColors.lightGreen;if(rssi-70)returnColors.orange;returnColors.red;}WidgetbuildSignalStrengthBar(int rssi){finalpercentage((rssi100)/70*100).clamp(0,100);returnLinearProgressIndicator(value:percentage/100,backgroundColor:Colors.grey[300],valueColor:AlwaysStoppedAnimation(getSignalColor(rssi)),);}4. 网络列表网络模型classWifiNetwork{finalStringssid;finalStringbssid;finalint rssi;finalint frequency;finalStringchannel;finalStringsecurity;bool isCurrent;WifiNetwork({requiredthis.ssid,requiredthis.bssid,requiredthis.rssi,requiredthis.frequency,requiredthis.channel,requiredthis.security,this.isCurrentfalse,});}使用说明基本使用查看当前连接显示网络名称显示IP地址显示信号强度扫描网络点击扫描按钮查看可用网络选择网络连接复制信息复制WiFi信息分享给他人高级功能自动刷新voidstartAutoUpdate(){updateTimerTimer.periodic(Duration(seconds:3),(timer){updateWifiInfo();});}技术要点1. 权限配置Android权限uses-permissionandroid:nameandroid.permission.ACCESS_WIFI_STATE/uses-permissionandroid:nameandroid.permission.CHANGE_WIFI_STATE/uses-permissionandroid:nameandroid.permission.ACCESS_FINE_LOCATION/uses-permissionandroid:nameandroid.permission.NEARBY_WIFI_DEVICES/2. 信息解析WiFi配置解析WifiConfigparseWifiConfig(StringqrContent){// WIFI:T:WPA;S:MyNetwork;P:password123;;finalpartsqrContent.split(;);String?ssid;String?password;String?security;for(varpartinparts){if(part.startsWith(S:)){ssidpart.substring(2);}elseif(part.startsWith(P:)){passwordpart.substring(2);}elseif(part.startsWith(T:)){securitypart.substring(2);}}returnWifiConfig(ssid:ssid,password:password,security:security,);}3. 网络连接连接WiFiFutureboolconnectToWifi(WifiConfigconfig)async{returnawaitWifiConnector.connect(ssid:config.ssid,password:config.password,security:config.security,);}最佳实践1. 权限处理优雅请求FuturevoidcheckAndRequestPermission()async{varstatusawaitPermission.location.status;if(!status.isGranted){statusawaitPermission.location.request();}if(status.isPermanentlyDenied){showPermissionDialog();}}2. 错误处理异常处理try{finalinfoawaitWifiInfoPlugin.wifiInfo;updateUI(info);}onPlatformExceptioncatch(e){if(e.codeNOT_CONNECTED){showWarning(未连接WiFi);}else{showError(获取信息失败:${e.message});}}3. 性能优化缓存机制classWifiInfoCache{WifiInfo?_cachedInfo;DateTime?_lastUpdate;FutureWifiInfogetInfo({bool forceRefreshfalse})async{if(!forceRefresh_cachedInfo!nullDateTime.now().difference(_lastUpdate!)Duration(seconds:5)){return_cachedInfo!;}_cachedInfoawaitfetchWifiInfo();_lastUpdateDateTime.now();return_cachedInfo!;}}应用场景1. 网络诊断连接测试FutureNetworkStatusdiagnoseNetwork()async{finalwifiInfoawaitgetWifiInfo();if(wifiInfo.signalStrength-80){returnNetworkStatus.weakSignal;}finalpingResultawaitping(wifiInfo.gateway);if(!pingResult){returnNetworkStatus.noGatewayConnection;}returnNetworkStatus.ok;}2. WiFi分享生成二维码StringgenerateWifiQrCode(WifiInfoinfo,Stringpassword){returnWIFI:T:${info.security};S:${info.ssid};P:$password;;;}3. 智能家居设备配网FuturevoidconfigureDevice(WifiConfigconfig)async{// SmartConfig或AP模式配网awaitSmartConfig.start(ssid:config.ssid,password:config.password,);}总结Flutter鸿蒙WiFi信息获取功能实现了完整的WiFi信息管理解决方案包括✅ 权限处理机制✅ 连接信息读取✅ 网络扫描功能✅ 信号强度显示✅ 网络详情展示该功能为Flutter for OpenHarmony应用提供了专业的WiFi信息获取能力适用于网络诊断、智能家居配网等场景。