private void ManageCleanOperation()
{
//TODO 3. WRITING CARD 5
Ndef ndef = null;
NfcNdefRecord record = null;
try
{
ndef = Ndef.Get(currentTag);
if (!CheckWriteOperation(ndef, record))
{
OnNfcTagCleaned?.Invoke(this, false);
return;
}
ndef.Connect();
byte[] empty = Array.Empty <byte>();
NdefMessage message = new NdefMessage(new NdefRecord[1] {
new NdefRecord(NdefRecord.TnfEmpty, empty, empty, empty)
});
ndef.WriteNdefMessage(message);
OnNfcTagCleaned?.Invoke(this, true);
return;
}
catch (Android.Nfc.TagLostException tlex)
{
Debug.WriteLine($"Tag Lost Error: {tlex.Message}");
}
catch (Java.IO.IOException ioex)
{
Debug.WriteLine($"Tag IO Error: {ioex.Message}");
}
catch (Android.Nfc.FormatException fe)
{
Debug.WriteLine($"Tag Format Error: {fe.Message}");
}
catch
{
Debug.WriteLine($"Tag Error");
}
finally
{
if (ndef?.IsConnected == true)
{
ndef.Close();
}
currentTag = null;
currentIntent = null;
}
OnNfcTagCleaned?.Invoke(this, false);
}
public override void DidInvalidate(NFCNdefReaderSession session, NSError error)
{
//Error
if (isReadingTag)
{
OnNfcTagRead?.Invoke(this, null);
}
else if (isWritingTagText)
{
OnNfcTagTextWriten?.Invoke(this, false);
}
else if (isWritingTagUri)
{
OnNfcTagUriWriten?.Invoke(this, false);
}
else if (isWritingTagMime)
{
OnNfcTagMimeWriten?.Invoke(this, false);
}
else if (isCleaningTag)
{
OnNfcTagCleaned?.Invoke(this, false);
}
}
