如何使用Windows Phone 10从NFC获取Mac ID。

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） &NBSP; &NBSP; &NBSP; { &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; var buffer = message.Data.ToArray（）; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; int mimesize = 0; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; //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

根据API参考，您可以获得 DeviceId

ProximityDevice class 具有以下属性：

DeviceId

MaxDistanceInMillimeters

MinDistanceInMillimeters

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

As per the API reference, you can get theDeviceId

TheProximityDeviceclass has these properties:

DeviceId

MaxDistanceInMillimeters

MinDistanceInMillimeters

You can find detailed API reference for Proximity hereand UWP SDK Samples can be foundhere.