NFC teszt és egyebek javítása, fejlesztése

src/WorkFlowCheck.MAUI/Pages/NFC/NFCTestPage.xaml.cs

@@ -1,25 +1,35 @@
 using Plugin.NFC;
+using System.Collections.ObjectModel;
 using System.Text;
+using System.Windows.Input;
+using System.Linq;
 
 namespace WorkFlowCheck.MAUI.Pages.NFC;
 
 public partial class NFCTestPage : ContentPage
 {
-	public NFCTestPage()
-	{
-		InitializeComponent();
-	}
+    public NFCTestPage()
+    {
+        InitializeComponent();
+    }
+
+    public ObservableCollection<NFCData> NFCDataList { get; set; }
+    public ICommand RefreshCommand { get; set; }
+
     public const string ALERT_TITLE = "NFC";
     bool _eventsAlreadySubscribed = false;
+    public bool IsRefreshing { get; set; }
+
     protected override async void OnAppearing()
     {
         base.OnAppearing();
+
         CrossNFC.Legacy = false;
         if (CrossNFC.IsSupported)
         {
             if (!CrossNFC.Current.IsAvailable)
                 await ShowAlert("NFC is not available");
-             
+
             if (!CrossNFC.Current.IsEnabled)
                 await ShowAlert("NFC is disabled");
 
@@ -29,6 +39,8 @@ public partial class NFCTestPage : ContentPage
         {
             await ShowAlert("NFC is not available");
         }
+        RefreshCommand = new Command(async () => await LoadNFCDataList());
+        BindingContext = this;
     }
     Task ShowAlert(string message, string title = null) => DisplayAlert(string.IsNullOrWhiteSpace(title) ? ALERT_TITLE : title, message, "OK");
     async Task AutoStartAsync()
@@ -39,7 +51,7 @@ public partial class NFCTestPage : ContentPage
     }
     async Task StartListeningIfNotiOS()
     {
-        
+
         await BeginListening();
     }
     async Task BeginListening()
@@ -64,23 +76,23 @@ public partial class NFCTestPage : ContentPage
 
         _eventsAlreadySubscribed = true;
 
-        CrossNFC.Current.OnMessageReceived += Current_OnMessageReceived;
+        CrossNFC.Current.OnMessageReceived += Current_OnMessageReceived_NFCData;
         //CrossNFC.Current.OnMessagePublished += Current_OnMessagePublished;
         //CrossNFC.Current.OnTagDiscovered += Current_OnTagDiscovered;
         //CrossNFC.Current.OnNfcStatusChanged += Current_OnNfcStatusChanged;
         //CrossNFC.Current.OnTagListeningStatusChanged += Current_OnTagListeningStatusChanged;
 
-        
+
     }
     void UnsubscribeEvents()
     {
-        CrossNFC.Current.OnMessageReceived -= Current_OnMessageReceived;
+        CrossNFC.Current.OnMessageReceived -= Current_OnMessageReceived_NFCData;
         //CrossNFC.Current.OnMessagePublished -= Current_OnMessagePublished;
         //CrossNFC.Current.OnTagDiscovered -= Current_OnTagDiscovered;
         //CrossNFC.Current.OnNfcStatusChanged -= Current_OnNfcStatusChanged;
         //CrossNFC.Current.OnTagListeningStatusChanged -= Current_OnTagListeningStatusChanged;
 
-        
+
 
         _eventsAlreadySubscribed = false;
     }
@@ -111,6 +123,42 @@ public partial class NFCTestPage : ContentPage
             await ShowAlert(GetMessage(first), title);
         }
     }
+    async void Current_OnMessageReceived_NFCData(ITagInfo tagInfo)
+    {
+
+        if (tagInfo == null)
+        {
+            await ShowAlert("No tag found");
+            return;
+        }
+
+        // Customized serial number
+        var identifier = tagInfo.Identifier;
+        var serialNumber = NFCUtils.ByteArrayToHexString(identifier, ":");
+
+        if (NFCDataList == null)
+        {
+            NFCDataList = new ObservableCollection<NFCData>();
+        }
+
+
+        NFCDataList.Add(new NFCData()
+        {
+            SerialNumber = serialNumber,
+            DateReceived = $"{DateTime.Now.Date.ToShortDateString()}  {DateTime.Now.ToLongTimeString()}"
+        });
+
+        NFCDataListCollection.ItemsSource = NFCDataList.OrderByDescending(o => o.DateReceived);
+        await LoadNFCDataList();
+    }
+
+    private async Task LoadNFCDataList()
+    {
+        IsRefreshing = true;
+        IsRefreshing = false;
+        OnPropertyChanged(nameof(IsRefreshing));
+        OnPropertyChanged(nameof(NFCDataList));
+    }
     string GetMessage(NFCNdefRecord record)
     {
         var message = $"Message: {record.Message}";
@@ -127,7 +175,8 @@ public partial class NFCTestPage : ContentPage
 
         return message;
     }
-    protected override  bool OnBackButtonPressed() {
+    protected override bool OnBackButtonPressed()
+    {
         Shell.Current.GoToAsync("//MainPage");
         return true;
     }