diff --git a/Softeq.XToolkit.WhiteLabel.iOS/ViewControllerBase.cs b/Softeq.XToolkit.WhiteLabel.iOS/ViewControllerBase.cs
index 5877e240..08673a14 100644
--- a/Softeq.XToolkit.WhiteLabel.iOS/ViewControllerBase.cs
+++ b/Softeq.XToolkit.WhiteLabel.iOS/ViewControllerBase.cs
@@ -66,7 +66,7 @@ public override void ViewDidLoad()
         public override void ViewWillAppear(bool animated)
         {
             base.ViewWillAppear(animated);
-            ViewModel.OnAppearing();
+            NotifyViewModelAboutAppearing();
             AttachBindings();
         }
 
@@ -74,7 +74,7 @@ public override void ViewWillDisappear(bool animated)
         {
             base.ViewWillDisappear(animated);
             DetachBindings();
-            ViewModel.OnDisappearing();
+            NotifyViewModelAboutDisappearing();
         }
 
         public override void ViewDidDisappear(bool animated)
@@ -84,6 +84,16 @@ public override void ViewDidDisappear(bool animated)
             CloseDialogIfNeeded();
         }
 
+        protected virtual void NotifyViewModelAboutAppearing()
+        {
+            ViewModel.OnAppearing();
+        }
+
+        protected virtual void NotifyViewModelAboutDisappearing()
+        {
+            ViewModel.OnDisappearing();
+        }
+
         protected virtual void DoAttachBindings()
         {
         }