如何使用Windows Phone 10从NFC获取Mac ID。 [英] How to get the Mac id from NFC using windows phone 10.

问题描述

大家好，

我正在开发一个程序，它提取NFC标签的所有细节，尤其是"Mac ID"，

我可以从我的Windows Phone 10上的设备上读取NFC标签，我可以获取设备名称，但我无法获取设备ID，请找到下面的代码。

无效NFCConnect（）

        {

            device = ProximityDevice.GetDefault（）;

            device.DeviceArrived + = Device_DeviceArrived;

            device.SubscribeForMessage（" WindowsMime"，messageReceived）;

}

private void messageReceived（ProximityDevice sender，ProximityMessage message）

        {

            var buffer = message.Data.ToArray（）;

            int mimesize = 0;

            //首先搜索'\0'charactere

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; for（mimesize = 0; mimesize< 256&& buffer [mimesize]！= 0; ++ mimesize）

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; {

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; }; b

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; //提取mimetype

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; var messageType = Encoding.UTF8.GetString（buffer，0，mimesize）;



  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; //将数据转换为字符串。这取决于mimetype值。

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; var scans_message = Encoding.UTF8.GetString（buffer，256，buffer.Length - 256）;  &NBSP; &NBSP; &NBSP;   



  &NBSP; &NBSP; &NBSP; }

OutPut：

application / vnd.bluetooth。 ep.oob\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ 0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\ \\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0 \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ 0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\ \\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0 \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ 0\0\0\0\0\0\0\0\0\0\0 \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ 0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\ \\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0 \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ 0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\ \\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\\\0 ？？？？\\\％\0\\\
\tDX30-1693\\\\r\0\\\\0\\\\\\\\\
\\\"

谢谢，

Praveen.N

解决方案

根据API参考，您可以获得  DeviceId

  ProximityDevice   class
具有以下属性： 

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MinDistanceInMillimeters

DeviceId	只读	获取设备标识符。
MaxDistanceInMillimeters	只读	接近传感器可以检测到对象的最大距离。

你
可以找到Proximity的详细API参考 here   和
可以找到UWP SDK示例  这里

。

Hi All,

I am developing a program which extracts all the details of the NFC tag, especially the "Mac ID",

I am able to read the NFC tag from a Device on my windows phone 10, i am able to get the device name but i am not able to get the device id, please find the code below.

void NFCConnect()
        {
            device = ProximityDevice.GetDefault();
            device.DeviceArrived += Device_DeviceArrived;
            device.SubscribeForMessage("WindowsMime", messageReceived);

}

private void messageReceived(ProximityDevice sender, ProximityMessage message)
        {
            var buffer = message.Data.ToArray();
            int mimesize = 0;
            //search first '\0' charactere
            for (mimesize = 0; mimesize < 256 && buffer[mimesize] != 0; ++mimesize)
            {
            };

            //extract mimetype
            var messageType = Encoding.UTF8.GetString(buffer, 0, mimesize);

            //convert data to string. This depends on mimetype value.
            var scanned_message = Encoding.UTF8.GetString(buffer, 256, buffer.Length - 256);          

        }

OutPut:

application/vnd.bluetooth.ep.oob\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\u001c\0?\u0016?%?\0\n\tDX30-1693\u0004\r\0\u001f\0\u0003\u0002\u0001\u0011"

Thanks,

Praveen.N

解决方案

As per the API reference, you can get the DeviceId

The ProximityDevice class has these properties: 

DeviceId	Read-only	Gets the device identifier.
MaxDistanceInMillimeters	Read-only	The largest distance where the proximity sensor can detect an object.
MinDistanceInMillimeters

You can find detailed API reference for Proximity here and UWP SDK Samples can be found here.

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