Question

方法Windows.Devices.Enumeration.DeviceInformation.findAllAsync返回DeviceInformation的集合。此对象将属性name指定为设备蓝牙名称。但相反，该属性包含HM-12，SPP Dev或SerialPort等值，我假设它们是蓝牙协议的名称。

以下是示例。请注意，此代码在Windows升级之前正常工作（该版本导致此未知）

使用Windows 10 mobile 10.0.14393.67

Windows 10桌面输出正确的结果。

var rfcomm = Windows.Devices.Bluetooth.Rfcomm;
var sockets = Windows.Networking.Sockets;
var streams = Windows.Storage.Streams;
var deviceInfo = Windows.Devices.Enumeration.DeviceInformation;

var cordova = require('cordova');
module.exports = {

  connService: null,
  connSocket: null,
  connWriter: null,
  connReader: null,
  connDevice: null,

  list: function(successCallback, errorCallback) {

    setTimeout(function() {
      try {
        var selector =
          rfcomm.RfcommDeviceService.getDeviceSelector(
            rfcomm.RfcommServiceId.serialPort);
        var parsedDevices = [];

        deviceInfo.findAllAsync(selector, null).then(function(devices) {
          if (devices.length > 0) {

            for (var i = 0; i < devices.length; i++) {
              parsedDevices.push({
                id: devices[i].id,
                name: devices[i].name
              })
              successCallback(parsedDevices);
            }
          } else {
            errorCallback("No devices found.");
          }

        }, function(error) {
          errorCallback({
            error: "list",
            message: error.message
          });
        });


      } catch (ex) {
        errorCallback(ex);
      }


}, 0);
  }
}

选择器的值（Windows 10移动设备）：

System.Devices.DevObjectType:=10 AND System.Devices.AepService.ProtocolId:="{E0CBF06C-CD8B-4647-BB8A-263B43F0F974}" AND System.Devices.AepService.ServiceClassId:="{B142FC3E-FA4E-460B-8ABC-072B628B3C70}" AND System.Devices.AepService.Bluetooth.ServiceGuid:="{00001101-0000-1000-8000-00805F9B34FB}" AND System.Devices.AepService.ParentAepIsPaired:=System.StructuredQueryType.Boolean#True

选择器的值（Windows 10 PC） - 工作正常

System.Devices.InterfaceClassGuid:=\"{B142FC3E-FA4E-460B-8ABC-072B628B3C70}\" AND System.DeviceInterface.Bluetooth.ServiceGuid:=\"{00001101-0000-1000-8000-00805F9B34FB}\" AND System.Devices.InterfaceEnabled:=System.StructuredQueryType.Boolean#True

Answer 1

<强>问题

您的选择器仅查找与serialPort描述匹配的设备/服务，这就是您获得SPP Dev或Serial Port等名称的原因。

<强>解决方案

取自Windows 10 sample for BluetoothRFcommChat，找到蓝牙设备使用以下AQS查询：

"sample","sample"

DeviceInformation.name显示蓝牙版本而不是名称

1 个答案: