private void Read()
{
try
{
string data = ReadBlock(8);
if (data == null)
{
return;
}
enNif.Text = data;
data = ReadBlock(9);
if (data == null)
{
return;
}
enName.Text = data;
data = ReadBlock(10);
if (data == null)
{
return;
}
enSurname.Text = data;
data = ReadBlock(12);
if (data == null)
{
return;
}
pkType.SelectedIndex = int.Parse(data);
data = ReadBlock(13);
if (data == null)
{
return;
}
enTickets.Text = data;
data = ReadBlock(14);
if (data == null)
{
return;
}
dpEndDate.Date = DateTime.Parse(data);
DisplayAlert("Done", "Card configuration read", "Ok");
}
finally
{
nfcService.StopByteBlockOperations();
}
}
private void btnStop_Clicked(System.Object sender, System.EventArgs e)
{
nfcService.StopByteBlockOperations();
Device.BeginInvokeOnMainThread(() => lbState.Text = "Waiting...");
}
private async void NfcService_OnNfcTagDiscovered(object sender, EventArgs e)
{
nfcService.StopDiscovering();
try
{
string data = ReadBlock(8);
if (data == null)
{
return;
}
lbNif.Text = data;
data = ReadBlock(9);
if (data == null)
{
return;
}
lbName.Text = data;
data = ReadBlock(10);
if (data == null)
{
return;
}
lbSurname.Text = data;
data = ReadBlock(12);
if (data == null)
{
return;
}
int type = int.Parse(data);
data = ReadBlock(13);
if (data == null)
{
return;
}
int tickets = int.Parse(data);
data = ReadBlock(14);
if (data == null)
{
return;
}
DateTime tillDate = DateTime.Parse(data);
if (IsValidAccess(type, tickets, tillDate) &&
UpdateCardInfo(type, tickets))
{
lbStatus.TextColor = Color.Green;
lbStatus.Text = "Access granted";
}
else
{
lbStatus.TextColor = Color.Red;
lbStatus.Text = "Access denied";
}
await Task.Delay(3000);
}
finally
{
lbNif.Text = string.Empty;
lbName.Text = string.Empty;
lbSurname.Text = string.Empty;
lbStatus.TextColor = Color.Black;
lbStatus.Text = "Bring your card closer to the reader to access";
nfcService.StopByteBlockOperations();
nfcService.StartDiscovering();
}
}