我如何发送Android Beam消息到nfc-explorer

Question

如何向nfc-explorer发送ndef消息？我尝试使用nfc资源管理器中的源代码，但始终会得到空的ndef消息。

Answer 1

您有完整的演示实现here，并阅读了official documentation.

要回答您的问题，请发送消息：

public NdefMessage CreateNdefMessage (NfcEvent evt)
{
    DateTime time = DateTime.Now;
    var text = ("Beam me up!\n\n" + "Beam Time: " +
        time.ToString ("HH:mm:ss"));
    NdefMessage msg = new NdefMessage (
        new NdefRecord[]{ CreateMimeRecord (
            "application/com.example.android.beam",
            Encoding.UTF8.GetBytes (text)) });
        } };
    return msg;
}

public NdefRecord CreateMimeRecord (String mimeType, byte [] payload)
{
    byte [] mimeBytes = Encoding.UTF8.GetBytes (mimeType);
    NdefRecord mimeRecord = new NdefRecord (
        NdefRecord.TnfMimeMedia, mimeBytes, new byte [0], payload);
    return mimeRecord;
}