diff --git a/src/Controls/samples/Maui.Controls.Sample.Macos/App.cs b/src/Controls/samples/Maui.Controls.Sample.Macos/App.cs
index 951686cf8eb3..458818557d9f 100644
--- a/src/Controls/samples/Maui.Controls.Sample.Macos/App.cs
+++ b/src/Controls/samples/Maui.Controls.Sample.Macos/App.cs
@@ -10,7 +10,14 @@ public class App: Application
 	{
 		public App()
 		{
-			MainPage = new ContentPage();
+			var page = new ContentPage();
+			page.Title = "Hello!";
+			var label = new Label
+			{
+				Text = "Hi Maui"
+			};
+			page.Content = label;
+			MainPage = page;
 		}
 	}
 }
\ No newline at end of file
diff --git a/src/Core/src/Handlers/View/ViewHandlerOfT.Mac.cs b/src/Core/src/Handlers/View/ViewHandlerOfT.Mac.cs
index 17823c5c6de1..a1aada656b20 100644
--- a/src/Core/src/Handlers/View/ViewHandlerOfT.Mac.cs
+++ b/src/Core/src/Handlers/View/ViewHandlerOfT.Mac.cs
@@ -47,24 +47,22 @@ public override Size GetDesiredSize(double widthConstraint, double heightConstra
 				return new Size(widthConstraint, heightConstraint);
 			}
 
-			throw new NotImplementedException();
-			//var sizeThatFits = nativeView.SizeThatFits(new CoreGraphics.CGSize((float)widthConstraint, (float)heightConstraint));
+			var sizeThatFits = nativeView is MauiView mauiView ? mauiView.SizeThatFits(new CoreGraphics.CGSize((float)widthConstraint, (float)heightConstraint)) : nativeView.FittingSize;
 
-			//var size = new Size(
-			//	sizeThatFits.Width == float.PositiveInfinity ? double.PositiveInfinity : sizeThatFits.Width,
-			//	sizeThatFits.Height == float.PositiveInfinity ? double.PositiveInfinity : sizeThatFits.Height);
+			var size = new Size(
+				sizeThatFits.Width == float.PositiveInfinity ? double.PositiveInfinity : sizeThatFits.Width,
+				sizeThatFits.Height == float.PositiveInfinity ? double.PositiveInfinity : sizeThatFits.Height);
 
-			//if (double.IsInfinity(size.Width) || double.IsInfinity(size.Height))
-			//{
-			//	
-			//	nativeView.SizeToFit();
-			//	size = new Size(nativeView.Frame.Width, nativeView.Frame.Height);
-			//}
+			if (double.IsInfinity(size.Width) || double.IsInfinity(size.Height))
+			{
+				nativeView.SetFrameSize(nativeView.FittingSize);
+				size = new Size(nativeView.Frame.Width, nativeView.Frame.Height);
+			}
 
-			//var finalWidth = ResolveConstraints(size.Width, VirtualView.Width, VirtualView.MinimumWidth, VirtualView.MaximumWidth);
-			//var finalHeight = ResolveConstraints(size.Height, VirtualView.Height, VirtualView.MinimumHeight, VirtualView.MaximumHeight);
+			var finalWidth = ResolveConstraints(size.Width, VirtualView.Width, VirtualView.MinimumWidth, VirtualView.MaximumWidth);
+			var finalHeight = ResolveConstraints(size.Height, VirtualView.Height, VirtualView.MinimumHeight, VirtualView.MaximumHeight);
 
-			//return new Size(finalWidth, finalHeight);
+			return new Size(finalWidth, finalHeight);
 		}
 
 		double ResolveConstraints(double measured, double exact, double min, double max)
diff --git a/src/Core/src/LifecycleEvents/Mac/MacLifecycle.cs b/src/Core/src/LifecycleEvents/Mac/MacLifecycle.cs
index 46649b8e7cef..51adec3cefef 100644
--- a/src/Core/src/LifecycleEvents/Mac/MacLifecycle.cs
+++ b/src/Core/src/LifecycleEvents/Mac/MacLifecycle.cs
@@ -11,7 +11,7 @@ public static class MacLifecycle
 		public delegate bool FinishedLaunching(NSApplication application, NSDictionary launchOptions);
 		public delegate void OnActivated(NSApplication application);
 		public delegate void OnResignActivation(NSApplication application);
-		public delegate bool OpenUrl(NSApplication app, NSUrl url, NSDictionary options);
+		public delegate bool OpenUrls(NSApplication app, NSUrl[] url);
 		//public delegate void PerformActionForShortcutItem(NSApplication application, NSApplicationShortcutItem shortcutItem, UIOperationHandler completionHandler);
 		public delegate void WillEnterForeground(NSApplication application);
 		public delegate void WillTerminate(NSApplication application);
diff --git a/src/Core/src/LifecycleEvents/Mac/MacLifecycleBuilderExtensions.cs b/src/Core/src/LifecycleEvents/Mac/MacLifecycleBuilderExtensions.cs
index d0df6abcc423..f866d442c566 100644
--- a/src/Core/src/LifecycleEvents/Mac/MacLifecycleBuilderExtensions.cs
+++ b/src/Core/src/LifecycleEvents/Mac/MacLifecycleBuilderExtensions.cs
@@ -8,7 +8,7 @@ public static class MacLifecycleBuilderExtensions
 		public static IMacLifecycleBuilder FinishedLaunching(this IMacLifecycleBuilder lifecycle, MacLifecycle.FinishedLaunching del) => lifecycle.OnEvent(del);
 		public static IMacLifecycleBuilder OnActivated(this IMacLifecycleBuilder lifecycle, MacLifecycle.OnActivated del) => lifecycle.OnEvent(del);
 		public static IMacLifecycleBuilder OnResignActivation(this IMacLifecycleBuilder lifecycle, MacLifecycle.OnResignActivation del) => lifecycle.OnEvent(del);
-		public static IMacLifecycleBuilder OpenUrl(this IMacLifecycleBuilder lifecycle, MacLifecycle.OpenUrl del) => lifecycle.OnEvent(del);
+		public static IMacLifecycleBuilder OpenUrls(this IMacLifecycleBuilder lifecycle, MacLifecycle.OpenUrls del) => lifecycle.OnEvent(del);
 //		public static IMacLifecycleBuilder PerformActionForShortcutItem(this IMacLifecycleBuilder lifecycle, MacLifecycle.PerformActionForShortcutItem del) => lifecycle.OnEvent(del);
 		public static IMacLifecycleBuilder WillEnterForeground(this IMacLifecycleBuilder lifecycle, MacLifecycle.WillEnterForeground del) => lifecycle.OnEvent(del);
 		public static IMacLifecycleBuilder WillTerminate(this IMacLifecycleBuilder lifecycle, MacLifecycle.WillTerminate del) => lifecycle.OnEvent(del);
diff --git a/src/Core/src/Platform/Mac/MauiUIApplicationDelegate.cs b/src/Core/src/Platform/Mac/MauiUIApplicationDelegate.cs
index c15a82bb824c..96a3aa26588b 100644
--- a/src/Core/src/Platform/Mac/MauiUIApplicationDelegate.cs
+++ b/src/Core/src/Platform/Mac/MauiUIApplicationDelegate.cs
@@ -78,14 +78,15 @@ NSWindow CreateNativeWindow()
 
 		public override void OpenUrls(NSApplication application, NSUrl[] urls)
 		{
-			//var wasHandled = false;
+			var wasHandled = false;
 
-			//Services?.InvokeLifecycleEvents<MacLifecycle.OpenUrl>(del =>
-			//{
-			//	wasHandled = del(application, url, options) || wasHandled;
-			//});
+			Services?.InvokeLifecycleEvents<MacLifecycle.OpenUrls>(del =>
+			{
+				wasHandled = del(application, urls);
+			});
 
-			//return wasHandled || base.OpenUrl(application, url, options);
+			if (!wasHandled)
+				base.OpenUrls(application, urls);
 		}
 
 		//public override void PerformActionForShortcutItem(NSApplication application, UIApplicationShortcutItem shortcutItem, UIOperationHandler completionHandler)
@@ -105,20 +106,20 @@ public override void OpenUrls(NSApplication application, NSUrl[] urls)
 		//	return wasHandled || base.ContinueUserActivity(application, userActivity, completionHandler);
 		//}
 
-		//public override void OnActivated(NSApplication application)
-		//{
-		//	Services?.InvokeLifecycleEvents<MacLifecycle.OnActivated>(del => del(application));
-		//}
+		public override void DidBecomeActive(NSNotification notification)
+		{
+			Services?.InvokeLifecycleEvents<MacLifecycle.OnActivated>(del => del(NSApplication.SharedApplication));
+		}
 
-		//public override void OnResignActivation(NSApplication application)
-		//{
-		//	Services?.InvokeLifecycleEvents<MacLifecycle.OnResignActivation>(del => del(application));
-		//}
+		public override void DidResignActive(NSNotification notification)
+		{
+			Services?.InvokeLifecycleEvents<MacLifecycle.OnResignActivation>(del => del(NSApplication.SharedApplication));
+		}
 
-		//public override void WillTerminate(NSApplication application)
-		//{
-		//	Services?.InvokeLifecycleEvents<MacLifecycle.WillTerminate>(del => del(application));
-		//}
+		public override void WillTerminate(NSNotification notification)
+		{
+			Services?.InvokeLifecycleEvents<MacLifecycle.WillTerminate>(del => del(NSApplication.SharedApplication));
+		}
 
 		//public override void DidEnterBackground(NSApplication application)
 		//{