Reduce boolean boxes across the framework

src/Controls/src/Core/ActivityIndicator/ActivityIndicator.cs

@@ -2,6 +2,7 @@
 using System;
 using System.Diagnostics;
 
+using Microsoft.Maui.Controls.Internals;
 using Microsoft.Maui.Graphics;
 
 namespace Microsoft.Maui.Controls
@@ -16,7 +17,7 @@ namespace Microsoft.Maui.Controls
 	public partial class ActivityIndicator : View, IColorElement, IElementConfiguration<ActivityIndicator>, IActivityIndicator
 	{
 		/// <summary>Bindable property for <see cref="IsRunning"/>.</summary>
-		public static readonly BindableProperty IsRunningProperty = BindableProperty.Create(nameof(IsRunning), typeof(bool), typeof(ActivityIndicator), default(bool));
+		public static readonly BindableProperty IsRunningProperty = BindableProperty.Create(nameof(IsRunning), typeof(bool), typeof(ActivityIndicator), BooleanBoxes.FalseBox);
 
 		/// <summary>Bindable property for <see cref="Color"/>.</summary>
 		public static readonly BindableProperty ColorProperty = ColorElement.ColorProperty;
@@ -48,7 +49,7 @@ public Color Color
 		public bool IsRunning
 		{
 			get { return (bool)GetValue(IsRunningProperty); }
-			set { SetValue(IsRunningProperty, value); }
+			set { SetValue(IsRunningProperty, BooleanBoxes.Box(value)); }
 		}
 
 		/// <inheritdoc/>

src/Controls/src/Core/AppLinkEntry.cs

@@ -1,6 +1,7 @@
 #nullable disable
 using System;
 using System.Collections.Generic;
+using Microsoft.Maui.Controls.Internals;
 
 namespace Microsoft.Maui.Controls
 {
@@ -28,7 +29,7 @@ public AppLinkEntry()
 		public static readonly BindableProperty AppLinkUriProperty = BindableProperty.Create(nameof(AppLinkUri), typeof(Uri), typeof(AppLinkEntry), null);
 
 		/// <summary>Bindable property for <see cref="IsLinkActive"/>.</summary>
-		public static readonly BindableProperty IsLinkActiveProperty = BindableProperty.Create(nameof(IsLinkActive), typeof(bool), typeof(AppLinkEntry), false);
+		public static readonly BindableProperty IsLinkActiveProperty = BindableProperty.Create(nameof(IsLinkActive), typeof(bool), typeof(AppLinkEntry), BooleanBoxes.FalseBox);
 
 		/// <summary>Gets or sets an application-specific URI that uniquely describes content within an app. This is a bindable property.</summary>
 		public Uri AppLinkUri
@@ -49,7 +50,7 @@ public string Description
 		public bool IsLinkActive
 		{
 			get { return (bool)GetValue(IsLinkActiveProperty); }
-			set { SetValue(IsLinkActiveProperty, value); }
+			set { SetValue(IsLinkActiveProperty, BooleanBoxes.Box(value)); }
 		}
 
 		/// <summary>Gets a dictionary of application-specific key-value pairs.</summary>

src/Controls/src/Core/Cells/Cell.cs

@@ -16,7 +16,7 @@ public abstract class Cell : Element, ICellController, IFlowDirectionController,
 		/// <summary>The default height of cells.</summary>
 		public const int DefaultCellHeight = 40;
 		/// <summary>Bindable property for <see cref="IsEnabled"/>.</summary>
-		public static readonly BindableProperty IsEnabledProperty = BindableProperty.Create(nameof(IsEnabled), typeof(bool), typeof(Cell), true, propertyChanged: OnIsEnabledPropertyChanged);
+		public static readonly BindableProperty IsEnabledProperty = BindableProperty.Create(nameof(IsEnabled), typeof(bool), typeof(Cell), BooleanBoxes.TrueBox, propertyChanged: OnIsEnabledPropertyChanged);
 
 		ObservableCollection<MenuItem> _contextActions;
 		List<MenuItem> _currentContextActions;
@@ -130,7 +130,7 @@ public double Height
 		public bool IsEnabled
 		{
 			get { return (bool)GetValue(IsEnabledProperty); }
-			set { SetValue(IsEnabledProperty, value); }
+			set { SetValue(IsEnabledProperty, BooleanBoxes.Box(value)); }
 		}
 
 		/// <summary>Gets the height of the rendered cell on the device.</summary>

src/Controls/src/Core/Cells/SwitchCell.cs

@@ -1,5 +1,6 @@
 #nullable disable
 using System;
+using Microsoft.Maui.Controls.Internals;
 using Microsoft.Maui.Graphics;
 
 namespace Microsoft.Maui.Controls
@@ -9,7 +10,7 @@ namespace Microsoft.Maui.Controls
 	public class SwitchCell : Cell
 	{
 		/// <summary>Bindable property for <see cref="On"/>.</summary>
-		public static readonly BindableProperty OnProperty = BindableProperty.Create(nameof(On), typeof(bool), typeof(SwitchCell), false, propertyChanged: (obj, oldValue, newValue) =>
+		public static readonly BindableProperty OnProperty = BindableProperty.Create(nameof(On), typeof(bool), typeof(SwitchCell), BooleanBoxes.FalseBox, propertyChanged: (obj, oldValue, newValue) =>
 		{
 			var switchCell = (SwitchCell)obj;
 			switchCell.OnChanged?.Invoke(obj, new ToggledEventArgs((bool)newValue));
@@ -32,7 +33,7 @@ public Color OnColor
 		public bool On
 		{
 			get { return (bool)GetValue(OnProperty); }
-			set { SetValue(OnProperty, value); }
+			set { SetValue(OnProperty, BooleanBoxes.Box(value)); }
 		}
 
 		/// <summary>Gets or sets the text displayed next to the switch. This is a bindable property.</summary>

src/Controls/src/Core/CheckBox/CheckBox.cs

@@ -29,7 +29,7 @@ public partial class CheckBox : View, IElementConfiguration<CheckBox>, IBorderEl
 
 		/// <summary>Bindable property for <see cref="IsChecked"/>. This is a bindable property.</summary>
 		public static readonly BindableProperty IsCheckedProperty =
-			BindableProperty.Create(nameof(IsChecked), typeof(bool), typeof(CheckBox), false,
+			BindableProperty.Create(nameof(IsChecked), typeof(bool), typeof(CheckBox), BooleanBoxes.FalseBox,
 				propertyChanged: (bindable, oldValue, newValue) =>
 				{
 					if (bindable is not CheckBox checkBox)
@@ -98,7 +98,7 @@ public Color Color
 		public bool IsChecked
 		{
 			get => (bool)GetValue(IsCheckedProperty);
-			set => SetValue(IsCheckedProperty, value);
+			set => SetValue(IsCheckedProperty, BooleanBoxes.Box(value));
 		}
 
 		protected internal override void ChangeVisualState()
@@ -175,7 +175,7 @@ void ICommandElement.CanExecuteChanged(object sender, EventArgs e) =>
 		bool ICheckBox.IsChecked
 		{
 			get => IsChecked;
-			set => SetValue(IsCheckedProperty, value, SetterSpecificity.FromHandler);
+			set => SetValue(IsCheckedProperty, BooleanBoxes.Box(value), SetterSpecificity.FromHandler);
 		}
 
 		ICommand ICommandElement.Command => Command;

src/Controls/src/Core/Compatibility/Handlers/ListView/Android/ListViewAdapter.cs

@@ -26,7 +26,7 @@ internal class ListViewAdapter : CellAdapter
 		static int s_dividerHorizontalDarkId = int.MinValue;
 
 #pragma warning disable CS0618 // Type or member is obsolete
-		internal static readonly BindableProperty IsSelectedProperty = BindableProperty.CreateAttached("IsSelected", typeof(bool), typeof(Cell), false);
+		internal static readonly BindableProperty IsSelectedProperty = BindableProperty.CreateAttached("IsSelected", typeof(bool), typeof(Cell), BooleanBoxes.FalseBox);
 #pragma warning restore CS0618 // Type or member is obsolete
 
 		readonly Context _context;
@@ -722,7 +722,7 @@ void Select(int index, AView view)
 				Cell previousCell;
 #pragma warning restore CS0618 // Type or member is obsolete
 				if (_selectedCell.TryGetTarget(out previousCell))
-					previousCell.SetValue(IsSelectedProperty, false);
+					previousCell.SetValue(IsSelectedProperty, BooleanBoxes.FalseBox);
 			}
 
 			_lastSelected = view;
@@ -733,7 +733,7 @@ void Select(int index, AView view)
 #pragma warning disable CS0618 // Type or member is obsolete
 			Cell cell = GetCellForPosition(index);
 #pragma warning restore CS0618 // Type or member is obsolete
-			cell.SetValue(IsSelectedProperty, true);
+			cell.SetValue(IsSelectedProperty, BooleanBoxes.TrueBox);
 #pragma warning disable CS0618 // Type or member is obsolete
 			_selectedCell = new WeakReference<Cell>(cell);
 #pragma warning restore CS0618 // Type or member is obsolete

src/Controls/src/Core/Compatibility/Handlers/Shell/Android/ShellFlyoutRenderer.cs

@@ -83,7 +83,7 @@ void OnDrawerStateChanged(object sender, DrawerStateChangedEventArgs e)
 
 		void OnDrawerOpened(object sender, DrawerOpenedEventArgs e)
 		{
-			Shell.SetValueFromRenderer(Shell.FlyoutIsPresentedProperty, true);
+			Shell.SetValueFromRenderer(Shell.FlyoutIsPresentedProperty, BooleanBoxes.TrueBox);
 		}
 
 		void OnDrawerSlide(object sender, DrawerSlideEventArgs e)
@@ -95,7 +95,7 @@ void OnDrawerSlide(object sender, DrawerSlideEventArgs e)
 
 		void OnDrawerClosed(object sender, DrawerClosedEventArgs e)
 		{
-			Shell.SetValueFromRenderer(Shell.FlyoutIsPresentedProperty, false);
+			Shell.SetValueFromRenderer(Shell.FlyoutIsPresentedProperty, BooleanBoxes.FalseBox);
 		}
 
 		#endregion IDrawerListener
@@ -319,7 +319,7 @@ protected virtual void UpdateDrawerLockMode(FlyoutBehavior behavior)
 			{
 				case FlyoutBehavior.Disabled:
 					CloseDrawers();
-					Shell.SetValueFromRenderer(Shell.FlyoutIsPresentedProperty, false);
+					Shell.SetValueFromRenderer(Shell.FlyoutIsPresentedProperty, BooleanBoxes.FalseBox);
 					_currentLockMode = LockModeLockedClosed;
 					SetDrawerLockMode(_currentLockMode);
 					_content.SetPadding(0, _content.PaddingTop, _content.PaddingRight, _content.PaddingBottom);
@@ -332,7 +332,7 @@ protected virtual void UpdateDrawerLockMode(FlyoutBehavior behavior)
 					break;
 
 				case FlyoutBehavior.Locked:
-					Shell.SetValueFromRenderer(Shell.FlyoutIsPresentedProperty, true);
+					Shell.SetValueFromRenderer(Shell.FlyoutIsPresentedProperty, BooleanBoxes.TrueBox);
 					_currentLockMode = LockModeLockedOpen;
 					SetDrawerLockMode(_currentLockMode);
 

src/Controls/src/Core/Compatibility/Handlers/Shell/iOS/ShellPageRendererTracker.cs

@@ -7,6 +7,7 @@
 using System.Windows.Input;
 using CoreGraphics;
 using Foundation;
+using Microsoft.Maui.Controls.Internals;
 using Microsoft.Maui.Graphics;
 using Microsoft.Maui.Graphics.Platform;
 using UIKit;
@@ -704,7 +705,7 @@ void LeftBarButtonItemHandler(UIViewController controller, bool isRootPage)
 			}
 			else if (_flyoutBehavior == FlyoutBehavior.Flyout)
 			{
-				_context?.Shell?.SetValueFromRenderer(Shell.FlyoutIsPresentedProperty, true);
+				_context?.Shell?.SetValueFromRenderer(Shell.FlyoutIsPresentedProperty, BooleanBoxes.TrueBox);
 			}
 		}
 

src/Controls/src/Core/CompressedLayout.cs

@@ -1,6 +1,7 @@
 #nullable disable
 using System;
 using System.ComponentModel;
+using Microsoft.Maui.Controls.Internals;
 using Microsoft.Maui.Graphics;
 
 namespace Microsoft.Maui.Controls
@@ -27,7 +28,7 @@ public static bool GetIsHeadless(BindableObject bindable)
 		/// <param name="value">The new layout compression value. <see langword="true" /> to enable layout compression</param>
 		[Obsolete("CompressedLayout does not provide meaningful functionality and may be removed in a future release. Please remove usage of this API.")]
 		public static void SetIsHeadless(BindableObject bindable, bool value)
-			=> bindable.SetValue(IsHeadlessProperty, value);
+			=> bindable.SetValue(IsHeadlessProperty, BooleanBoxes.Box(value));
 
 		static void OnIsHeadlessPropertyChanged(BindableObject bindable, object oldValue, object newValue)
 		{

src/Controls/src/Core/ContentPage/ContentPage.cs

@@ -3,6 +3,7 @@
 using System;
 using System.Diagnostics;
 
+using Microsoft.Maui.Controls.Internals;
 using Microsoft.Maui.Graphics;
 using Microsoft.Maui.HotReload;
 using Microsoft.Maui.Layouts;
@@ -27,7 +28,7 @@ public View Content
 
 		/// <summary>Bindable property for <see cref="HideSoftInputOnTapped"/>.</summary>
 		public static readonly BindableProperty HideSoftInputOnTappedProperty
-			= BindableProperty.Create(nameof(HideSoftInputOnTapped), typeof(bool), typeof(ContentPage), false);
+			= BindableProperty.Create(nameof(HideSoftInputOnTapped), typeof(bool), typeof(ContentPage), BooleanBoxes.FalseBox);
 
 		/// <summary>Bindable property for <see cref="SafeAreaEdges"/>.</summary>
 		public static readonly BindableProperty SafeAreaEdgesProperty = SafeAreaElement.SafeAreaEdgesProperty;
@@ -38,7 +39,7 @@ public static readonly BindableProperty HideSoftInputOnTappedProperty
 		public bool HideSoftInputOnTapped
 		{
 			get { return (bool)GetValue(HideSoftInputOnTappedProperty); }
-			set { SetValue(HideSoftInputOnTappedProperty, value); }
+			set { SetValue(HideSoftInputOnTappedProperty, BooleanBoxes.Box(value)); }
 		}
 
 		/// <summary>

src/Controls/src/Core/DragAndDrop/DragGestureRecognizer.cs

@@ -1,6 +1,7 @@
 using System;
-using System.Windows.Input;
+using Microsoft.Maui.Controls.Internals;
 using Microsoft.Maui.Graphics;
+using System.Windows.Input;
 
 namespace Microsoft.Maui.Controls
 {
@@ -11,7 +12,7 @@ namespace Microsoft.Maui.Controls
 	public class DragGestureRecognizer : GestureRecognizer
 	{
 		/// <summary>Bindable property for <see cref="CanDrag"/>.</summary>
-		public static readonly BindableProperty CanDragProperty = BindableProperty.Create(nameof(CanDrag), typeof(bool), typeof(DragGestureRecognizer), true);
+		public static readonly BindableProperty CanDragProperty = BindableProperty.Create(nameof(CanDrag), typeof(bool), typeof(DragGestureRecognizer), BooleanBoxes.TrueBox);
 
 		/// <summary>Bindable property for <see cref="DropCompletedCommand"/>.</summary>
 		public static readonly BindableProperty DropCompletedCommandProperty = BindableProperty.Create(nameof(DropCompletedCommand), typeof(ICommand), typeof(DragGestureRecognizer), null);
@@ -52,7 +53,7 @@ public DragGestureRecognizer()
 		public bool CanDrag
 		{
 			get { return (bool)GetValue(CanDragProperty); }
-			set { SetValue(CanDragProperty, value); }
+			set { SetValue(CanDragProperty, BooleanBoxes.Box(value)); }
 		}
 
 		/// <summary>

src/Controls/src/Core/DragAndDrop/DropGestureRecognizer.cs

@@ -5,6 +5,7 @@
 using System.Text;
 using System.Threading.Tasks;
 using System.Windows.Input;
+using Microsoft.Maui.Controls.Internals;
 
 namespace Microsoft.Maui.Controls
 {
@@ -14,7 +15,7 @@ namespace Microsoft.Maui.Controls
 	public class DropGestureRecognizer : GestureRecognizer
 	{
 		/// <summary>Bindable property for <see cref="AllowDrop"/>.</summary>
-		public static readonly BindableProperty AllowDropProperty = BindableProperty.Create(nameof(AllowDrop), typeof(bool), typeof(DropGestureRecognizer), true);
+		public static readonly BindableProperty AllowDropProperty = BindableProperty.Create(nameof(AllowDrop), typeof(bool), typeof(DropGestureRecognizer), BooleanBoxes.TrueBox);
 
 		/// <summary>Bindable property for <see cref="DragOverCommand"/>.</summary>
 		public static readonly BindableProperty DragOverCommandProperty = BindableProperty.Create(nameof(DragOverCommand), typeof(ICommand), typeof(DropGestureRecognizer), null);
@@ -62,7 +63,7 @@ public DropGestureRecognizer()
 		public bool AllowDrop
 		{
 			get { return (bool)GetValue(AllowDropProperty); }
-			set { SetValue(AllowDropProperty, value); }
+			set { SetValue(AllowDropProperty, BooleanBoxes.Box(value)); }
 		}
 
 		/// <summary>

src/Controls/src/Core/Entry/Entry.cs

@@ -35,7 +35,7 @@ public partial class Entry : InputView, ITextAlignmentElement, IEntryController,
 		/// <summary>
 		/// Backing store for the <see cref="IsPassword"/> property.
 		/// </summary>
-		public static readonly BindableProperty IsPasswordProperty = BindableProperty.Create(nameof(IsPassword), typeof(bool), typeof(Entry), default(bool));
+		public static readonly BindableProperty IsPasswordProperty = BindableProperty.Create(nameof(IsPassword), typeof(bool), typeof(Entry), BooleanBoxes.FalseBox);
 
 		/// <inheritdoc cref="InputView.TextProperty"/>
 		public new static readonly BindableProperty TextProperty = InputView.TextProperty;
@@ -122,7 +122,7 @@ public TextAlignment VerticalTextAlignment
 		public bool IsPassword
 		{
 			get { return (bool)GetValue(IsPasswordProperty); }
-			set { SetValue(IsPasswordProperty, value); }
+			set { SetValue(IsPasswordProperty, BooleanBoxes.Box(value)); }
 		}
 
 		/// <summary>

src/Controls/src/Core/FlyoutPage/FlyoutPage.cs

@@ -17,10 +17,10 @@ namespace Microsoft.Maui.Controls
 	public partial class FlyoutPage : Page, IFlyoutPageController, IElementConfiguration<FlyoutPage>, IFlyoutView
 	{
 		/// <summary>Bindable property for <see cref="IsGestureEnabled"/>.</summary>
-		public static readonly BindableProperty IsGestureEnabledProperty = BindableProperty.Create(nameof(IsGestureEnabled), typeof(bool), typeof(FlyoutPage), true);
+		public static readonly BindableProperty IsGestureEnabledProperty = BindableProperty.Create(nameof(IsGestureEnabled), typeof(bool), typeof(FlyoutPage), BooleanBoxes.TrueBox);
 
 		/// <summary>Bindable property for <see cref="IsPresented"/>.</summary>
-		public static readonly BindableProperty IsPresentedProperty = BindableProperty.Create(nameof(IsPresented), typeof(bool), typeof(FlyoutPage), default(bool),
+		public static readonly BindableProperty IsPresentedProperty = BindableProperty.Create(nameof(IsPresented), typeof(bool), typeof(FlyoutPage), BooleanBoxes.FalseBox,
 			propertyChanged: OnIsPresentedPropertyChanged, propertyChanging: OnIsPresentedPropertyChanging, defaultValueCreator: GetDefaultValue);
 
 		/// <summary>Bindable property for <see cref="FlyoutLayoutBehavior"/>.</summary>
@@ -95,14 +95,14 @@ public Page Detail
 		public bool IsGestureEnabled
 		{
 			get { return (bool)GetValue(IsGestureEnabledProperty); }
-			set { SetValue(IsGestureEnabledProperty, value); }
+			set { SetValue(IsGestureEnabledProperty, BooleanBoxes.Box(value)); }
 		}
 
 		/// <summary>Gets or sets a value that indicates whether the flyout is presented. This is a bindable property.</summary>
 		public bool IsPresented
 		{
 			get { return (bool)GetValue(IsPresentedProperty); }
-			set { SetValue(IsPresentedProperty, value); }
+			set { SetValue(IsPresentedProperty, BooleanBoxes.Box(value)); }
 		}
 
 		/// <summary>Gets or sets the flyout page that is used to present a menu or navigation options.</summary>
@@ -282,7 +282,7 @@ internal static void UpdateFlyoutLayoutBehavior(FlyoutPage page)
 		{
 			if (page is IFlyoutPageController fpc && fpc.ShouldShowSplitMode)
 			{
-				page.SetValue(IsPresentedProperty, true);
+				page.SetValue(IsPresentedProperty, BooleanBoxes.TrueBox);
 				if (page.FlyoutLayoutBehavior != FlyoutLayoutBehavior.Default)
 					fpc.CanChangeIsPresented = false;
 			}

src/Controls/src/Core/FontImageSource.cs

@@ -1,4 +1,5 @@
 #nullable disable
+using Microsoft.Maui.Controls.Internals;
 using Microsoft.Maui.Graphics;
 
 namespace Microsoft.Maui.Controls
@@ -57,13 +58,13 @@ public double Size
 
 		/// <summary>Bindable property for <see cref="FontAutoScalingEnabled"/>.</summary>
 		public static readonly BindableProperty FontAutoScalingEnabledProperty =
-			BindableProperty.Create(nameof(FontAutoScalingEnabled), typeof(bool), typeof(FontImageSource), false,
+			BindableProperty.Create(nameof(FontAutoScalingEnabled), typeof(bool), typeof(FontImageSource), BooleanBoxes.FalseBox,
 				propertyChanged: (b, o, n) => ((FontImageSource)b).OnSourceChanged());
 
 		public bool FontAutoScalingEnabled
 		{
 			get => (bool)GetValue(FontAutoScalingEnabledProperty);
-			set => SetValue(FontAutoScalingEnabledProperty, value);
+			set => SetValue(FontAutoScalingEnabledProperty, BooleanBoxes.Box(value));
 		}
 	}
 }