public void StartListening(bool Write)
{
if (!IsAvailable())
{
throw new InvalidOperationException("NFC not available");
}
if (!IsEnabled()) // todo: offer possibility to open dialog
{
throw new InvalidOperationException("NFC is not enabled");
}
WriteMode = Write;
var ndefDetected = new IntentFilter(NfcAdapter.ActionNdefDiscovered);
ndefDetected.AddDataType("*/*");
var tagDetected = new IntentFilter(NfcAdapter.ActionTagDiscovered);
tagDetected.AddDataType("*/*");
var filters = new[] { tagDetected };
var intent = new Intent(CurrentActivity, CurrentActivity.GetType()).AddFlags(ActivityFlags.SingleTop);
var pendingIntent = PendingIntent.GetActivity(CurrentActivity, 0, intent, 0);
_nfcAdapter.EnableForegroundDispatch(CurrentActivity, pendingIntent, filters, new[] { new[] { Java.Lang.Class.FromType(typeof(MifareUltralight)).Name } });
Enabled = true;
//_nfcAdapter.EnableReaderMode(activity, this, NfcReaderFlags.NfcA | NfcReaderFlags.NoPlatformSounds, null);
}
/// <summary>
/// Starts tags detection
/// </summary>
public void StartListening()
{
if (_nfcAdapter == null)
{
return;
}
var intent = new Intent(CurrentActivity, CurrentActivity.GetType()).AddFlags(ActivityFlags.SingleTop);
var pendingIntent = PendingIntent.GetActivity(CurrentActivity, 0, intent, 0);
var ndefFilter = new IntentFilter(NfcAdapter.ActionNdefDiscovered);
ndefFilter.AddDataType("*/*");
var tagFilter = new IntentFilter(NfcAdapter.ActionTagDiscovered);
tagFilter.AddCategory(Intent.CategoryDefault);
var filters = new IntentFilter[] { ndefFilter, tagFilter };
_nfcAdapter.EnableForegroundDispatch(CurrentActivity, pendingIntent, filters, null);
_isListening = true;
OnTagListeningStatusChanged?.Invoke(_isListening);
}
/// <inheritdoc/>
public Task StartListeningAsync()
{
if (!Enabled)
{
throw new InvalidOperationException("NFC not available");
}
if (!Available) // todo: offer possibility to open dialog
{
throw new InvalidOperationException("NFC is not enabled");
}
var activity = (Activity)Association;
var tagDetected = new IntentFilter(NfcAdapter.ActionNdefDiscovered);
tagDetected.AddDataType("*/*");
var filters = new[] { tagDetected };
var intent = new Intent(activity, activity.GetType()).AddFlags(ActivityFlags.SingleTop);
var pendingIntent = PendingIntent.GetActivity(activity, 0, intent, 0);
_adapter.EnableForegroundDispatch(activity, pendingIntent, filters,
new[] { new[] { Java.Lang.Class.FromType(typeof(Ndef)).Name } });
Scanning = true;
Debug.WriteLine("Started Listening Async - XNFC");
return(Task.CompletedTask);
}
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
Xamarin.Essentials.Platform.Init(this, savedInstanceState);
SetContentView(Resource.Layout.activity_main);
mms = new MMSReceiver();
sms = new SMSReceiver();
var filter2 = new IntentFilter("android.provider.Telephony.WAP_PUSH_RECEIVED");
filter2.AddDataType("application/vnd.wap.mms-message");
RegisterReceiver(mms, filter2);
var filter3 = new IntentFilter("android.provider.Telephony.MMS_RECEIVED");
RegisterReceiver(mms, filter3);
var filter1 = new IntentFilter("android.provider.Telephony.SMS_RECEIVED");
RegisterReceiver(sms, filter1);
Button button = FindViewById <Button>(Resource.Id.button1);
button.Click += Btn_Click;
}
private static void addDataTypeUnchecked(IntentFilter filter, string type)
{
try {
filter.AddDataType(type);
} catch (Android.Content.IntentFilter.MalformedMimeTypeException ex) {
throw new RuntimeException(ex);
}
}
public static void Something()
{
PendingIntent pendingIntent = PendingIntent.GetActivity(_Context, 0, new Intent(_Context, _Context.GetType()).AddFlags(ActivityFlags.SingleTop), 0);
IntentFilter ndef = new IntentFilter(NfcAdapter.ActionNdefDiscovered);
try
{
ndef.AddDataType("*/*"); /* Handles all MIME based dispatches.
* You should specify only the ones that you need. */
}
catch (MalformedMimeTypeException e)
{
throw new Java.Lang.RuntimeException("fail", e);
}
intentFiltersArray = new IntentFilter[] { ndef, };
//techListsArray = new string[][] { new string[] { NfcF.class.getName() }};
}
protected override void OnResume()
{
base.OnResume();
IntentFilter smsIntentfilter = new IntentFilter(Android.Provider.Telephony.Sms.Intents.SmsReceivedAction)
{
Priority = (int)IntentFilterPriority.HighPriority
};
IntentFilter mmsIntentfilter = new IntentFilter(Android.Provider.Telephony.Sms.Intents.WapPushReceivedAction)
{
Priority = (int)IntentFilterPriority.HighPriority
};
mmsIntentfilter.AddDataType("application/vnd.wap.mms-message");
RegisterReceiver(smsReceiver, smsIntentfilter);
RegisterReceiver(mmsReceiver, mmsIntentfilter);
}
private Task StartWithFilters(IEnumerable <string> filterActions, IEnumerable <string> filterTechs, PendingIntent activity, Activity association)
{
IntentFilter intentFilter = new IntentFilter();
foreach (var action in filterActions)
{
intentFilter.AddAction(action);
}
intentFilter.AddDataType("*/*");
IntentFilter[] filters = new IntentFilter[1] {
intentFilter
};
_adapter.EnableForegroundDispatch(association, activity, filters, new string[1][]
{
filterTechs.ToArray()
});
return(Task.CompletedTask);
}
private void EnableNfc()
{
if (_isNfcEnabled)
{
return;
}
var adapter = Android.Nfc.NfcAdapter.GetDefaultAdapter(_mainActivity);
if (adapter != null)
{
// Filter out NDEF intents. In this library we are not interested in Tech or Tag low level intents.
// Android prioritize the filters in the following order:
// - ActionNdefDiscovered
// - ActionTechDiscovered
// - ActionTagDiscovered
var pendingIntent = PendingIntent.GetActivity(
_mainActivity,
0,
new Intent(_mainActivity, _mainActivity.GetType()).AddFlags(ActivityFlags.SingleTop),
0);
var ndefFilter = new IntentFilter(Android.Nfc.NfcAdapter.ActionNdefDiscovered);
ndefFilter.AddDataType("*/*");
var filters = new IntentFilter[]
{
ndefFilter,
};
adapter.EnableForegroundDispatch(
_mainActivity,
pendingIntent,
filters,
null);
}
_isNfcEnabled = true;
System.Diagnostics.Debug.WriteLine("========> NFC Enabled");
}
public async Task StartListeningAsync()
{
if (!await IsAvailableAsync())
{
throw new InvalidOperationException("NFC not available");
}
if (!await IsEnabledAsync()) // todo: offer possibility to open dialog
{
throw new InvalidOperationException("NFC is not enabled");
}
var activity = CrossNfc.CurrentActivity;
var tagDetected = new IntentFilter(NfcAdapter.ActionNdefDiscovered);
tagDetected.AddDataType("*/*");
var filters = new[] { tagDetected };
var intent = new Intent(activity, activity.GetType()).AddFlags(ActivityFlags.SingleTop);
var pendingIntent = PendingIntent.GetActivity(activity, 0, intent, 0);
_nfcAdapter.EnableForegroundDispatch(activity, pendingIntent, filters, new[] { new[] { Java.Lang.Class.FromType(typeof(Ndef)).Name } });
//_nfcAdapter.EnableReaderMode(activity, this, NfcReaderFlags.NfcA | NfcReaderFlags.NoPlatformSounds, null);
}
public async Task StartReadingAsync()
{
if (!await IsReaderAvailableAsync())
{
throw new InvalidOperationException("NFC reader not available");
}
if (!await IsReaderEnabledAsync())
{
throw new InvalidOperationException("NFC reader is not enabled");
}
var act = CurrentActivity;
var tagDetected = new IntentFilter(NfcAdapter.ActionNdefDiscovered);
tagDetected.AddDataType("*/*");
var filters = new[] { tagDetected };
var intent = new Intent(act, act.GetType()).AddFlags(ActivityFlags.SingleTop);
var pendingIntent = PendingIntent.GetActivity(act, 0, intent, 0);
_nfcAdapter.EnableReaderMode(act, this, NfcReaderFlags.NfcA | NfcReaderFlags.NoPlatformSounds, null);
}