Primo sviluppo sincronizzazione e migliorie ui

Template.Shared/Core/Messages/BackNavigationService.cs

@@ -0,0 +1,16 @@
+using CommunityToolkit.Mvvm.Messaging;
+
+namespace Template.Shared.Core.Messages;
+
+public class BackNavigationService
+{
+    public event Action? OnHardwareBack;
+
+    public BackNavigationService()
+    {
+        WeakReferenceMessenger.Default.Register<HardwareBackMessage>(this, (r, m) =>
+        {
+            OnHardwareBack?.Invoke();
+        });
+    }
+}