[Android] Fix Stepper IsEnabled property changes

src/Controls/samples/Controls.Sample/Pages/Controls/StepperPage.xaml

@@ -15,7 +15,12 @@
                 Text="Disabled"
                 Style="{StaticResource Headline}"/>
             <Stepper
+                x:Name="EnableStepper"
                 IsEnabled="False"/>
+            <Button
+                x:Name="EnableButton"
+                Text="Enable Stepper"
+                Clicked="OnEnableButtonClicked"/>
             <Label
                 Text="BackgroundColor"
                 Style="{StaticResource Headline}"/>

src/Controls/samples/Controls.Sample/Pages/Controls/StepperPage.xaml.cs

@@ -14,5 +14,19 @@ void OnValueChanged(object sender, ValueChangedEventArgs args)
 		{
 			Debug.WriteLine($"Stepper Value: {args.NewValue}");
 		}
+
+		void OnEnableButtonClicked(object sender, System.EventArgs e)
+		{
+			if (EnableStepper.IsEnabled)
+			{
+				EnableStepper.IsEnabled = false;
+				EnableButton.Text = "Enable Stepper";
+			}
+			else
+			{
+				EnableStepper.IsEnabled = true;
+				EnableButton.Text = "Disable Stepper";
+			}
+		}
 	}
 }

src/Core/src/Handlers/Stepper/StepperHandler.Android.cs

@@ -36,6 +36,11 @@ protected override MauiStepper CreatePlatformView()
 			return stepperLayout;
 		}
 
+		public static void MapIsEnabled(IStepperHandler handler, IStepper stepper)
+		{
+			handler.PlatformView?.UpdateIsEnabled(stepper);
+		}
+
 		public static void MapMinimum(IStepperHandler handler, IStepper stepper)
 		{
 			handler.PlatformView?.UpdateMinimum(stepper);

src/Core/src/Handlers/Stepper/StepperHandler.cs

@@ -20,7 +20,9 @@ public partial class StepperHandler : IStepperHandler
 			[nameof(IStepper.Maximum)] = MapMaximum,
 			[nameof(IStepper.Minimum)] = MapMinimum,
 			[nameof(IStepper.Value)] = MapValue,
-#if WINDOWS
+#if ANDROID
+			[nameof(IStepper.IsEnabled)] = MapIsEnabled,
+#elif WINDOWS
 			[nameof(IStepper.Background)] = MapBackground,
 #endif
 		};

src/Core/src/PublicAPI/net-android/PublicAPI.Unshipped.txt

@@ -141,6 +141,7 @@ static Microsoft.Maui.Handlers.MenuFlyoutHandler.Mapper -> Microsoft.Maui.IPrope
 static Microsoft.Maui.Handlers.MenuFlyoutHandler.MapRemove(Microsoft.Maui.Handlers.IMenuFlyoutHandler! handler, Microsoft.Maui.IMenuFlyout! menuElement, object? arg) -> void
 static Microsoft.Maui.Handlers.MenuFlyoutSeparatorHandler.CommandMapper -> Microsoft.Maui.CommandMapper<Microsoft.Maui.IMenuFlyoutSeparator!, Microsoft.Maui.Handlers.IMenuFlyoutSeparatorHandler!>!
 static Microsoft.Maui.Handlers.MenuFlyoutSeparatorHandler.Mapper -> Microsoft.Maui.IPropertyMapper<Microsoft.Maui.IMenuFlyoutSeparator!, Microsoft.Maui.Handlers.IMenuFlyoutSeparatorHandler!>!
+static Microsoft.Maui.Handlers.StepperHandler.MapIsEnabled(Microsoft.Maui.Handlers.IStepperHandler! handler, Microsoft.Maui.IStepper! stepper) -> void
 static Microsoft.Maui.Handlers.ViewHandler.MapToolTip(Microsoft.Maui.IViewHandler! handler, Microsoft.Maui.IView! view) -> void
 static Microsoft.Maui.Handlers.ViewHandler.MapContextFlyout(Microsoft.Maui.IViewHandler! handler, Microsoft.Maui.IView! view) -> void
 static Microsoft.Maui.Handlers.WindowHandler.MapHeight(Microsoft.Maui.Handlers.IWindowHandler! handler, Microsoft.Maui.IWindow! view) -> void

src/Core/tests/DeviceTests/Handlers/Stepper/StepperHandlerTests.Android.cs

@@ -1,13 +1,25 @@
 using System;
 using System.Threading.Tasks;
 using Android.Widget;
-using Microsoft.Maui.Graphics;
-using Microsoft.Maui.Handlers;
+using Microsoft.Maui.DeviceTests.Stubs;
 
 namespace Microsoft.Maui.DeviceTests
 {
 	public partial class StepperHandlerTests
 	{
+		[Fact(DisplayName = "IsEnabled Initializes Correctly")]
+		public async Task IsEnabledInitializesCorrectly()
+		{
+			var stepper = new StepperStub()
+			{
+				Minimum = 0,
+				Maximum = 50,
+				IsEnabled = false
+			};
+
+			await ValidatePropertyInitValue(stepper, () => stepper.IsEnabled, GetNativeIsEnabled, stepper.IsEnabled);
+		}
+
 		LinearLayout GetNativeStepper(StepperHandler stepperHandler) =>
 			stepperHandler.PlatformView;
 
@@ -44,6 +56,16 @@ public partial class StepperHandlerTests
 			return 0;
 		}
 
+		bool GetNativeIsEnabled(StepperHandler stepperHandler)
+		{
+			var platformView = GetNativeStepper(stepperHandler);
+
+			var minimumButton = platformView.GetChildAt(0);
+			var maximumButton = platformView.GetChildAt(1);
+
+			return minimumButton.Enabled && maximumButton.Enabled;
+		}
+
 		Task ValidateHasColor(IStepper stepper, Color color, Action action = null)
 		{
 			return InvokeOnMainThreadAsync(() =>