private async void HandleNewTag(object sender, NfcFormsTag e)
{
if (Navigation.NavigationStack.Count == 3)
{
try
{
device.WriteTag(ndefMessage);
await DisplayAlert("Success", "NDEF write operation successful", "OK");
INavigation navigation = Application.Current.MainPage.Navigation;
Page currentPage = navigation.NavigationStack.ElementAt(navigation.NavigationStack.Count - 1);
while (navigation.NavigationStack.ElementAt(0) != currentPage)
{
navigation.RemovePage(navigation.NavigationStack.ElementAt(0));
}
Page scanPromptPage = new ScanPrompt();
navigation.InsertPageBefore(scanPromptPage, currentPage);
await Task.Delay(100);
await navigation.PopAsync();
}
catch
{
await DisplayAlert("Error", "NDEF write operation unsuccessful", "OK");
}
}
}
async void ReadTag(object sender, NfcFormsTag e)
{
var encoding = Encoding.UTF8.GetString(e.NdefMessage.ToByteArray());
var nfcText = encoding.Substring(7, encoding.Length - 7);
await LookUpPatient(nfcText);
}
private void HandleNewTag(object sender, NfcFormsTag e)
{
if (Navigation.NavigationStack.Count == 1)
{
Navigation.PushAsync(new Pages.NDEFRead(Utilities.NDEFHandler.readNDEFPlainText(e.NdefMessage)));
}
}
private ObservableCollection <string> readMifare(NfcFormsTag message)
{
ObservableCollection <string> collection = new ObservableCollection <string>();
collection.Add("ID: " + ByteArrayToString(message.Id));
return(collection);
}
public NfcForms()
{
NfcManager NfcManager = (NfcManager)Android.App.Application.Context.GetSystemService(Context.NfcService);
nfcDevice = NfcManager.DefaultAdapter;
nfcTag = new NfcFormsTag();
}
public async void ReadTag(object sender, NfcFormsTag e)
{
var encoding = Encoding.UTF8.GetString(e.NdefMessage.ToByteArray());
var sn = encoding.Substring(7, encoding.Length - 7);
await LookUpSerialNumber(sn);
}
private void RaiseNewTag(NfcFormsTag tag)
{
if (NewTag != null)
{
NewTag(this, tag);
}
}
private void HandleNewTag(object sender, NfcFormsTag e)
{
var message = e.NdefMessage;
ExecuteCallBack(new NFCData {
TagData = message.ToString()
});
}
private void RaiseTagDisconnected(NfcFormsTag tag)
{
nfcTag.IsConnected = false;
if (TagDisconnected != null)
{
TagDisconnected(this, tag);
}
}
private void TagAuslesen(object sender, NfcFormsTag e)
{
if (e.IsNdefSupported)
{
var result = readNDEFMEssage(e.NdefMessage);
DisplayAlert("Daten aus dem NFC-Tag", $"{string.Join(";",result)}", "Okay");
}
}
public void RaiseTagConnected(NfcFormsTag tag)
{
nfcTag.IsConnected = true;
if (TagConnected != null)
{
TagConnected(this, tag);
}
}
private async void LoginWidthCard(NfcFormsTag message)
{
String CardCert = ByteArrayToString(message.Id);
if (!String.IsNullOrEmpty(CardCert))
{
if (CrossConnectivity.Current.IsConnected)
{
try
{
lblCard.Text = "";
AddProgressBar();
APIServices.ApiServices apiServices = new APIServices.ApiServices();
LoginResult result = await apiServices.LoginCardAsync(CardCert);
if (result != null)
{
if (result.AuthStatus)
{
CrossSettings.Current.AddOrUpdateValue <bool>("IsLoggedIn", true);
CrossSettings.Current.AddOrUpdateValue <string>("Token", result.Token);
var navigation = new NavigationPage(new Dashboard());
navigation.BarBackgroundColor = Color.FromHex(App.Black);
navigation.BarTextColor = Color.White;
App.Current.MainPage = navigation;
lblCard.Text = "";
}
else
{
await DisplayAlert("Login Failed!", result.Message, "Ok");
lblCard.Text = CardCert;
}
}
}
catch (Exception pException)
{
await DisplayAlert("Login Failed!", pException.Message, "Ok");
System.Diagnostics.Debug.WriteLine("Exception : " + pException.Message);
}
finally
{
RemoveProgressBar();
}
}
else
{
await DisplayAlert("Login", "Internet Connection Not Available.", "Ok");
}
}
else
{
await DisplayAlert("Login Failed!", "Username and Password can not be empty", "Ok");
}
}
public static async void readTag(object sender, NfcFormsTag e)
{
//IsWriteable.IsToggled = e.IsWriteable; error object reference instance
// IsNDEFSupported.IsToggled = e.IsNdefSupported;
if (e.IsNdefSupported)
{
ndefMessageCollection = readNDEFMEssage(e.NdefMessage);
}
test = ndefMessageCollection.ToString();
}
//nfc found
private void HandleNewTag(object sender, NfcFormsTag e)
{
var record = e.NdefMessage[0];
// Go through each record, get payload
var output = System.Text.Encoding.ASCII.GetString(record.Payload);
var cardname = output.Substring(3);
Console.WriteLine("Name: " + cardname);
UpdateCardImage(cardname);
}
void device_TagConnected(object sender, NfcFormsTag e)
{
#if SILVERLIGHT
System.Windows.Deployment.Current.Dispatcher.BeginInvoke(() =>
{
IsConnected.IsToggled = true;
});
#else
IsConnected.IsToggled = true;
#endif
}
public NfcForms()
{
nfcTag = new NfcFormsTag();
if (ProximityDevice.GetDefault() != null)
{
nfcDevice = ProximityDevice.GetDefault();
nfcDevice.SubscribeForMessage("NDEF", MessageReceivedHandler);
nfcTag.IsWriteable = false;
nfcTag.MaxSize = 0;
nfcDevice.DeviceArrived += nfcDevice_DeviceArrived;
nfcDevice.DeviceDeparted += nfcDevice_DeviceDeparted;
}
}
void HandleNewTag(object sender, NfcFormsTag e)
{
#if SILVERLIGHT
System.Windows.Deployment.Current.Dispatcher.BeginInvoke(() =>
{
welcomePanel.IsVisible = false;
IsWriteable.IsToggled = e.IsWriteable;
IsNDEFSupported.IsToggled = e.IsNdefSupported;
if (TechList != null)
{
TechList.ItemsSource = e.TechList;
}
if (e.IsNdefSupported)
{
NDEFMessage.ItemsSource = readNDEFMEssage(e.NdefMessage);
}
});
#else
welcomePanel.IsVisible = false;
IsWriteable.IsToggled = e.IsWriteable;
IsNDEFSupported.IsToggled = e.IsNdefSupported;
if (TechList != null)
{
TechList.ItemsSource = e.TechList;
}
if (e.IsNdefSupported)
{
NDEFMessage.ItemsSource = readNDEFMEssage(e.NdefMessage);
}
else
{
NDEFMessage.ItemsSource = readMifare(e);
}
#endif
}
//Fire-a event HandleNewTag koji sprema u dvije liste tehnologiju mobitela koji podržavaju NFC i za čitanje poruke sa koda
private async void HandleNewTag(object sender, NfcFormsTag e)
{
if (e.IsNdefSupported)
{
readNDEFMEssage(e.NdefMessage);
}
StanjePublikacije novoStanjePublikacije = new StanjePublikacije()
{
datum = DateTime.Now,
datum_do = DateTime.Now.AddDays(30),
nazivPublikacije = publikacijeD.naziv,
nazivStatusa = "Posudeno",
kopijaId = convertedMessage,
clanoviId = Clanovi.id,
vrsta_statusaId = 2
};
HttpClient client = new HttpClient();
var Json = JsonConvert.SerializeObject(novoStanjePublikacije);
var content = new StringContent(Json, Encoding.UTF8, "application/json");
var request = await client.PutAsync(WebServisInfo.PutanjaWebServisa + "GumbRezerviraj", content);
var response = await request.Content.ReadAsStringAsync();
var publikacije = JsonConvert.DeserializeObject <List <Classes.Publikacije> >(response);
listaSvihPublikacija = publikacije;
ListaPublikacije.ItemsSource = listaSvihPublikacija;
PosaljiObavijestPosudeno(publikacijeD.Kopija);
MessagingCenter.Send <App>((App)Application.Current, "RezervacijaPublikacije");
await PopupNavigation.Instance.PopAsync();
}
void device_TagConnected(object sender, NfcFormsTag e)
{
Debug.WriteLine(e.Id);
}
void HandleNewTag(object sender, NfcFormsTag e)
{
LoginWidthCard(e);
}
async void CheckBalance(object sender, NfcFormsTag e)
{
await Navigation.PushAsync(new CheckBalancePage());
}
void ReadTag(object sender, NfcFormsTag e)
{
var encoding = Encoding.UTF8.GetString(e.NdefMessage.ToByteArray());
NFCText = encoding.Substring(7, encoding.Length - 7);
}
private void HandleNewTag(object sender, NfcFormsTag e)
{
var message = e.NdefMessage;
}