/// <summary>
/// Send an NDEF message to the remote device
/// </summary>
/// <param name="type">The type of NDEF Record</param>
/// <param name="ID">The ID of NDEF Record</param>
/// <param name="payload">The payload of NDEF Record</param>
/// <param name="payloadLength">The length of payload</param>
/// <returns>Returns true if initialize succeeded, false otherwise</returns>
public bool SendNDEF(byte[] type, byte[] ID, byte[] payload, uint payloadLength)
{
NfcNdefRecord NfcNdefRecord = new NfcNdefRecord(NfcRecordTypeNameFormat.WellKnown, type, ID, payload, payloadLength);
NfcNdefMessage NfcNdefMessage = new NfcNdefMessage();
try
{
NfcNdefMessage.AppendRecord(NfcNdefRecord);
}
catch (Exception e)
{
LogImplementation.DLog("Failed append record " + e.Message);
return(false);
}
try
{
nfcP2P.SendNdefMessageAsync(NfcNdefMessage);
return(true);
}
catch (Exception e)
{
LogImplementation.DLog("Failed send message " + e.Message);
return(false);
}
}
/// <summary>
/// Checks if NFC is supported
/// </summary>
/// <returns>Returns true if NFC is supported, false otherwise</returns>
public bool IsSupported()
{
try
{
return(NfcManager.IsSupported);
}
catch (Exception e)
{
LogImplementation.DLog("Error : " + e.Message);
return(false);
}
}
/// <summary>
/// Initialize to enable NFC Tag operation.
/// </summary>
/// <returns>Returns true if initialize succeeded, false otherwise</returns>
public bool TagInit()
{
try
{
NfcTagAdapter = NfcManager.GetTagAdapter();
return(true);
}
catch (Exception e)
{
LogImplementation.DLog("Failed initialize Tag " + e.Message);
return(false);
}
}
/// <summary>
/// Retrieves NFC P2p remote device.
/// </summary>
/// <returns>Returns true if initialize succeeded, false otherwise</returns>
public bool GetP2p()
{
try
{
nfcP2P = NfcP2pAdapter.GetConnectedTarget();
return(true);
}
catch (Exception e)
{
LogImplementation.DLog("Failed get p2p device " + e.Message);
return(false);
}
}
/// <summary>
/// Initialize to enable NFC P2p operation.
/// </summary>
/// <returns>Returns true if initialize succeeded, false otherwise</returns>
public bool P2p_init()
{
try
{
NfcP2pAdapter = NfcManager.GetP2pAdapter();
return(true);
}
catch (Exception e)
{
LogImplementation.DLog("Failed initialize P2P " + e.Message);
return(false);
}
}
/// <summary>
/// Register callback to read NDEF message
/// </summary>
/// <param name="receiveCallback">Callbacks to be called when an NDEF message is received</param>
/// <returns>Returns true if callback register succeeded, false otherwise</returns>
public bool ReceiveNDEF(Action <int> receiveCallback)
{
callback = receiveCallback;
try
{
nfcP2P.P2pDataReceived += Received;
return(true);
}
catch (Exception e)
{
LogImplementation.DLog("Failed receive message " + e.Message);
return(false);
}
}
/// <summary>
/// Callback function to be called when the NDEF message is received
/// </summary>
/// <param name="sender">The sender object</param>
/// <param name="e">Argument of Event</param>
void Received(object sender, P2pDataReceivedEventArgs e)
{
try
{
NfcNdefRecord record = e.NdefMessage.GetRecord(0);
}
catch (Exception exc)
{
LogImplementation.DLog("Failed getting record " + exc.Message);
}
record_count = e.NdefMessage.RecordCount;
LogImplementation.DLog("Record Count " + e.NdefMessage.RecordCount);
callback(record_count);
}
/// <summary>
/// Retrieves NFC Tag information.
/// </summary>
/// <param name="type">The Tag type</param>
/// <param name="support">Whether or not to support NDEF messages</param>
/// <param name="size">Stored NDEF message size in Tag</param>
/// <param name="maxSize">Maximum NDEF message size that can be stored in Tag</param>
/// <returns>Returns true if tag type was successfully obtained, false otherwise</returns>
public bool GetTagType(ref string type, ref bool support, ref uint size, ref uint maxSize)
{
try
{
NfcTag nfcTag = NfcTagAdapter.GetConnectedTag();
type = nfcTag.Type.ToString();
support = nfcTag.IsSupportNdef;
size = nfcTag.NdefSize;
maxSize = nfcTag.MaximumNdefSize;
return(true);
}
catch (Exception e)
{
LogImplementation.DLog("Failed get Tag Type " + e.Message);
return(false);
}
}
