private Task PlatformScanAsync(NdefScanOptions options = null)
{
string subscription = "NDEF";
if (options != null)
{
subscription = options.RecordType;
}
subscriptionReference = proximityDevice.SubscribeForMessage(subscription, MessageReceived);
return(Task.FromException(new NotImplementedException()));
}
private Task PlatformScanAsync(NdefScanOptions options = null)
{
session?.BeginSession();
if (options != null)
{
if (options.Signal != null)
{
options.Signal.Register(Cancelled);
}
}
return(Task.CompletedTask);
}
private Task PlatformScanAsync(NdefScanOptions options = null)
{
string subscription = "NDEF";
if (options != null)
{
if (options.Signal != null)
{
options.Signal.Register(Unsubscribe);
}
if (!string.IsNullOrEmpty(options.RecordType))
{
subscription = options.RecordType;
}
}
subscriptionReference = proximityDevice.SubscribeForMessage(subscription, MessageReceived);
return(Task.CompletedTask);
}
public Task ScanAsync(NdefScanOptions options = null)
{
return(PlatformScanAsync(options));
}
private Task PlatformScanAsync(NdefScanOptions options = null)
{
return(Task.FromException(new PlatformNotSupportedException()));
}
private async Task PlatformScanAsync(NdefScanOptions options = null)
{
s_adapter.EnableReaderMode(Xamarin.Essentials.Platform.CurrentActivity, this, NfcReaderFlags.NfcA | NfcReaderFlags.NfcB | NfcReaderFlags.NfcF | NfcReaderFlags.NfcV, null);
}