Fix ios page background

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

@@ -2,16 +2,49 @@
                    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
                    xmlns:controls="clr-namespace:Maui.Controls.Sample.Controls"
                    xmlns:layout="clr-namespace:Microsoft.Maui.Controls.Layout2;assembly=Microsoft.Maui.Controls"
-                   x:Class="Maui.Controls.Sample.Pages.XamlPage">
+                   x:Class="Maui.Controls.Sample.Pages.XamlPage"
+                   BackgroundColor="#512bdf"
+                   >
 
-    <layout:GridLayout x:Name="MyLayout" Margin="40" BackgroundColor="LightGreen">
+    <ScrollView Padding="{OnPlatform iOS='30,60,30,30', Default='30'}">
+        <StackLayout>
+            <Grid RowSpacing="25" RowDefinitions="Auto,Auto,Auto,Auto,*">
 
-        <Label 
-               Text="Welcome to Microsoft MAUI!" 
-               BackgroundColor="LightBlue" Margin="10,20,10,20"/>
+                <Label Text="Hello, World!"
+                    Grid.Row="0"
+                    SemanticProperties.HeadingLevel="Level1"
+                    FontSize="32"
+                    HorizontalOptions="CenterAndExpand" />
 
-
-    </layout:GridLayout>
+                <Label Text="Welcome to .NET Multi-platform App UI"
+                    Grid.Row="1"
+                    SemanticProperties.Hint="Counts the number of times you click" 
+                    FontSize="16"
+                    HorizontalOptions="CenterAndExpand" />
+
+                <Label Text="Current count: 0"
+                    Grid.Row="2"
+                    SemanticProperties.Hint="Counts the number of times you click"
+                    FontSize="18"
+                    FontAttributes="Bold"
+                    x:Name="CounterLabel"
+                    HorizontalOptions="Center" />
+
+                <Button Text="Click me"
+                    Grid.Row="3"
+                    SemanticProperties.Hint="Counts the number of times you click"
+                    Clicked="OnCounterClicked"
+                    HorizontalOptions="Center" />
+
+                <Image Grid.Row="4"
+                    Source="dotnet_bot.png"
+                    SemanticProperties.Description="Cute dotnet bot waving hi to you!"
+                    WidthRequest="300"
+                    HorizontalOptions="Center" />
+
+            </Grid>
+        </StackLayout>
+    </ScrollView>
 
 
 </controls:BasePage>

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

@@ -1,4 +1,5 @@
-using System.Diagnostics;
+using System;
+using System.Diagnostics;
 using Maui.Controls.Sample.Controls;
 using Microsoft.Maui.Controls.Xaml;
 
@@ -10,11 +11,13 @@ public partial class XamlPage : BasePage
 		public XamlPage()
 		{
 			InitializeComponent();
+		}
 
-			foreach (var x in MyLayout)
-			{
-				Debug.WriteLine($"{x}");
-			}
+		int count = 0;
+		private void OnCounterClicked(object sender, EventArgs e)
+		{
+			count++;
+			CounterLabel.Text = $"Current count: {count}";
 		}
 	}
 }

src/Core/src/Handlers/Page/PageHandler.cs

@@ -7,6 +7,9 @@ public partial class PageHandler : IViewHandler
 		{
 			[nameof(IPage.Title)] = MapTitle,
 			[nameof(IPage.Content)] = MapContent,
+#if __IOS__
+			[nameof(IPage.Background)] = MapBackground,
+#endif
 		};
 
 		public PageHandler() : base(PageMapper)

src/Core/src/Handlers/Page/PageHandler.iOS.cs

@@ -56,5 +56,10 @@ public static void MapContent(PageHandler handler, IPage page)
 		{
 			handler.UpdateContent();
 		}
+
+		public static void MapBackground(PageHandler handler, IView view)
+		{
+			handler.NativeView?.UpdateBackground(view);
+		}
 	}
 }

src/Core/src/Platform/iOS/PageViewExtensions.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using CoreAnimation;
+using CoreGraphics;
+using Microsoft.Maui.Graphics;
+using UIKit;
+
+namespace Microsoft.Maui
+{
+	public static class PageViewExtensions
+	{
+		public static void UpdateBackground(this PageView nativeView, IView view)
+		{
+			var paint = view.Background;
+
+			if (paint.IsNullOrEmpty())
+				return;
+
+			var color = paint.ToColor();
+
+			if (color == null)
+				return;
+
+			nativeView.BackgroundColor = color.ToNative();
+		}
+	}
+}