private void btnReadAll_Click(object sender, EventArgs e)
{
if (!connActive)
{
return;
}
string tmpStr = string.Empty;
int startBlock = 4, endBlock = 0, dataLength = 0, dataAllLength;
int dataPageIndex = 0;
byte[] recvData = new byte[6];
recvData = ReadDataFromCard(startBlock, 4);
dataLength = recvData[1];
dataAllLength = dataLength + 3;
if (dataLength > 0)
{
byte[] effectiveData = new byte[dataLength];
effectiveData[0] = recvData[2];
effectiveData[1] = recvData[3];
endBlock = dataAllLength % 4 == 0 ? dataAllLength / 4 + startBlock : dataAllLength / 4 + startBlock + 1;
for (int iBlock = startBlock + 1; iBlock < endBlock; iBlock++)
{
recvData = ReadDataFromCard(iBlock, 4);
for (int iBit = 0; iBit < 4; iBit++)
{
if ((dataPageIndex * 4 + iBit + 2) < effectiveData.Length)
{
effectiveData[dataPageIndex * 4 + iBit + 2] = recvData[iBit];
}
}
dataPageIndex++;
}
try
{
NdefMessage message = NdefMessage.FromByteArray(effectiveData);
NdefRecord record = message[0];
if (record.CheckSpecializedType(false) == typeof(NdefTextRecord))
{
//Convert and extract Smart Poster info
var textRecord = new NdefTextRecord(record);
WriteLog(3, 0, textRecord.Text);
}
}
catch
{
}
}
}
public static String ProcessNFCRecord(NdefRecord record)
{
//Define the tag content we want to return.
String tagContent = null;
//Make sure we have a record.
if (record != null)
{
//Check if the record is a URL.
if (record.CheckSpecializedType(true) == typeof(NdefUriRecord))
{
//The content is a URL.
tagContent = new NdefUriRecord(record).Uri;
}
else if (record.CheckSpecializedType(true) == typeof(NdefMailtoRecord))
{
//The content is a mailto record.
tagContent = new NdefMailtoRecord(record).Uri;
}
else if (record.CheckSpecializedType(true) == typeof(NdefTelRecord))
{
//The content is a tel record.
tagContent = new NdefTelRecord(record).Uri;
}
else if (record.CheckSpecializedType(true) == typeof(NdefSmsRecord))
{
//The content is a sms record.
tagContent = new NdefSmsRecord(record).Uri;
}
else if (record.CheckSpecializedType(true) == typeof(NdefTextRecord))
{
//The content is a text record.
tagContent = new NdefTextRecord(record).Text;
}
else
{
//Try and force a pure text conversion.
tagContent = Encoding.UTF8.GetString(record.Payload);
}
}
//Return the tag content.
return(tagContent);
}