flutter 通过网络控制设备 emqx mqtt_client

最新推荐文章于 2025-09-12 09:42:54 发布

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最新推荐文章于 2025-09-12 09:42:54 发布 · 462 阅读

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#网络 #flutter

WiFi插件： mqtt_client: ^10.5.1
JWT加密： dart_jsonwebtoken: ^2.14.1

连接设备

class WifiConnectVoid {
   
   
  static void wifiConnectVoid(
      {
   
   String? deviceModelId,
      String? deviceActivatedAt,
      String? deviceId,
      String? name,
      String? modelName,
      String? sn,
      bool reConnect = false,
      Function? callback}) async {
   
   
    DeviceConnectTypeWifiBlueGet deviceConnectTypeWifiBlueGet =
        Get.put(DeviceConnectTypeWifiBlueGet());
    GlobalWiFiBluetooth globalWiFiBluetooth = Get.put(GlobalWiFiBluetooth());
    if (modelName == null || sn == null) {
   
   
      EasyLoading.showError("wifi_connect_error".tr);
      globalWiFiBluetooth.isHaveDeviceVoid(false);
      return;
    }


    if (deviceConnectTypeWifiBlueGet.client != null &&
        deviceConnectTypeWifiBlueGet.client!.connectionStatus!.state ==
            MqttConnectionState.connected &&
        globalWiFiBluetooth.addNewDeviceSn.value == sn) {
   
   
      if (!reConnect) {
   
   
        //ping机器
        WiFiPush.wifiPush(WriteBluetoothMsgPing.writeBluetoothMsgPing(flag: 1));
      } else {
   
   
        WiFiPush.wifiPush(WriteBluetoothMsgPing.writeBluetoothMsgPing());
      }
      if (callback != null) {
   
   
        callback();
      }
    } else {
   
   
      if (deviceConnectTypeWifiBlueGet.client != null &&
          deviceConnectTypeWifiBlueGet.client!.connectionStatus!.state ==
              MqttConnectionState.connected &&
          globalWiFiBluetooth.addNewDeviceSn.value != sn) {
   
   
        try {
   
   
          deviceConnectTypeWifiBlueGet.client!.disconnect();
        } catch (_) {
   
   
          deviceConnectTypeWifiBlueGet.client!.disconnect();
        }
      }
      SharedPreferences preferences = await SharedPreferences.getInstance();
      String email = preferences.getString("gen_ki_nno_email") ?? "";
      MqttServerClient client = MqttServerClient(
        '域名',
        email,
      );

      // 要编码的数据
      final jwt =