perf: Reduce allocations across Shimmer, Popup, TabView, and TextInputLayout

maui/src/Popup/Helpers/PopupExtension/PopupExtension.cs

@@ -17,7 +17,8 @@ internal static SfPopup? TopMostOpenPopup
 		{
 			get
 			{
-				return OpenPopups.Count > 0 ? OpenPopups[OpenPopups.Count - 1] : null;
+				int count = OpenPopups.Count;
+				return count > 0 ? OpenPopups[count - 1] : null;
 			}
 		}
 
@@ -32,61 +33,38 @@ internal static SfPopup? TopMostOpenPopup
 		internal static Page? GetMainPage(bool shouldReturnOnlyMainPage = false)
 		{
 			var windowPage = PopupExtension.GetMainWindowPage();
-			if (windowPage is not null)
+			if (windowPage is null)
 			{
-				if (windowPage is not null)
+				return null;
+			}
+
+			// An exception is thrown when showing the popup in the OnAppearing() method of a modally pushed page.
+			if (windowPage.Navigation is not null && windowPage.Navigation.ModalStack is not null)
+			{
+				var modalPage = windowPage.Navigation.ModalStack.LastOrDefault();
+				if (modalPage is not null)
 				{
-					// An exception is thrown when showing the popup in the OnAppearing() method of a modally pushed page.
-					if (windowPage.Navigation is not null && windowPage.Navigation.ModalStack is not null)
+					// Calling Navigation.PushModalAsync(new NavigationPage(new ModalPage())) does not return the NavigationPage of the current page.
+					if (modalPage is NavigationPage navPage)
 					{
-						var modalPage = windowPage.Navigation.ModalStack.LastOrDefault();
-						if (modalPage is not null)
-						{
-							// Calling Navigation.PushModalAsync(new NavigationPage(new ModalPage())) does not return the NavigationPage of the current page.
-							if (modalPage is NavigationPage navPage)
-							{
-								if (navPage.CurrentPage is null)
-								{
-									return new Page();
-								}
-								else
-								{
-									return navPage.CurrentPage;
-								}
-							}
-
-							return modalPage;
-						}
+						return navPage.CurrentPage ?? windowPage;
 					}
 
-					if (windowPage is NavigationPage navigationPage && !shouldReturnOnlyMainPage)
-					{
-						// When navigation current page is null, returned new page.
-						if (navigationPage.CurrentPage == null)
-						{
-							return new Page();
-						}
-
-						return navigationPage.CurrentPage;
-					}
-					else if (windowPage is Shell shellPage)
-					{
-						// 837430 : when shell current page is null, NullReferenceException is thrown in ios in release mode.
-						if (shellPage.CurrentPage == null)
-						{
-							return new Page();
-						}
-
-						return shellPage.CurrentPage;
-					}
+					return modalPage;
 				}
+			}
 
-				return windowPage;
+			if (windowPage is NavigationPage navigationPage && !shouldReturnOnlyMainPage)
+			{
+				return navigationPage.CurrentPage ?? windowPage;
 			}
-			else
+			else if (windowPage is Shell shellPage)
 			{
-				return new Page();
+				// 837430 : when shell current page is null, NullReferenceException is thrown in ios in release mode.
+				return shellPage.CurrentPage ?? windowPage;
 			}
+
+			return windowPage;
 		}
 
 		/// <summary>
@@ -101,7 +79,7 @@ internal static SfPopup? TopMostOpenPopup
 				return application.Windows[0].Page;
 			}
 
-			return new Page();
+			return null;
 		}
 
 #if !IOS

maui/src/Popup/Helpers/PopupExtension/PopupExtension.iOS.cs

@@ -192,7 +192,8 @@ internal static int GetSafeAreaHeight(string position)
 #if NET10_0
 				if (GetSafeAreaEdges())
 #else
-				if (Microsoft.Maui.Controls.PlatformConfiguration.iOSSpecific.Page.GetUseSafeArea(GetMainPage()))
+				var safeAreaPage = GetMainPage();
+				if (safeAreaPage is not null && Microsoft.Maui.Controls.PlatformConfiguration.iOSSpecific.Page.GetUseSafeArea(safeAreaPage))
 #endif
 				{
 					var platformWindow = WindowOverlayHelper._window?.ToPlatform() as UIWindow;

maui/src/Popup/PopupFooter.cs

@@ -78,7 +78,8 @@ public PopupFooter()
 #if NET10_0
 			this.IgnoreSafeArea = !PopupExtension.GetSafeAreaEdges();
 #else
-			this.IgnoreSafeArea = !Microsoft.Maui.Controls.PlatformConfiguration.iOSSpecific.Page.GetUseSafeArea(PopupExtension.GetMainPage());
+			var mainPage = PopupExtension.GetMainPage();
+			this.IgnoreSafeArea = mainPage is null || !Microsoft.Maui.Controls.PlatformConfiguration.iOSSpecific.Page.GetUseSafeArea(mainPage);
 #endif
 #endif
 		}
@@ -92,7 +93,8 @@ public PopupFooter(PopupView popupView)
 #if IOS
 			// The value for the IgnoreSafeArea property is being set by retrieving the safe area value from the main page.
 #pragma warning disable CS0618 // Suppressing CS0618 warning because Page.GetUseSafeArea is marked obsolete in .NET 10.
-			IgnoreSafeArea = !Microsoft.Maui.Controls.PlatformConfiguration.iOSSpecific.Page.GetUseSafeArea(PopupExtension.GetMainPage());
+			var mainPageForSafeArea = PopupExtension.GetMainPage();
+			IgnoreSafeArea = mainPageForSafeArea is null || !Microsoft.Maui.Controls.PlatformConfiguration.iOSSpecific.Page.GetUseSafeArea(mainPageForSafeArea);
 #pragma warning restore CS0618
 #endif
 			_popupView = popupView;

maui/src/Popup/PopupHeader.cs

@@ -62,7 +62,8 @@ public PopupHeader()
 #if NET10_0
 			this.IgnoreSafeArea = !PopupExtension.GetSafeAreaEdges();
 #else
-			this.IgnoreSafeArea = !Microsoft.Maui.Controls.PlatformConfiguration.iOSSpecific.Page.GetUseSafeArea(PopupExtension.GetMainPage());
+			var mainPage = PopupExtension.GetMainPage();
+			this.IgnoreSafeArea = mainPage is null || !Microsoft.Maui.Controls.PlatformConfiguration.iOSSpecific.Page.GetUseSafeArea(mainPage);
 #endif
 #endif
 			Initialize();
@@ -77,7 +78,8 @@ public PopupHeader(PopupView popup)
 #if IOS
 			// When Page SafeArea is false, close icon overlaps header,because HeaderView arranging with safeArea.
 #pragma warning disable CS0618 // Suppressing CS0618 warning because Page.GetUseSafeArea is marked obsolete in .NET 10.
-			IgnoreSafeArea = !Microsoft.Maui.Controls.PlatformConfiguration.iOSSpecific.Page.GetUseSafeArea(PopupExtension.GetMainPage());
+			var mainPageForSafeArea = PopupExtension.GetMainPage();
+			IgnoreSafeArea = mainPageForSafeArea is null || !Microsoft.Maui.Controls.PlatformConfiguration.iOSSpecific.Page.GetUseSafeArea(mainPageForSafeArea);
 #pragma warning restore CS0618
 #endif
 			_popupView = popup;

maui/src/Popup/PopupMessageView.cs

@@ -55,7 +55,8 @@ public PopupMessageView()
 #if NET10_0
 			this.IgnoreSafeArea = !PopupExtension.GetSafeAreaEdges();
 #else
-			this.IgnoreSafeArea = !Microsoft.Maui.Controls.PlatformConfiguration.iOSSpecific.Page.GetUseSafeArea(PopupExtension.GetMainPage());
+			var mainPage = PopupExtension.GetMainPage();
+			this.IgnoreSafeArea = mainPage is null || !Microsoft.Maui.Controls.PlatformConfiguration.iOSSpecific.Page.GetUseSafeArea(mainPage);
 #endif
 #endif
 		}
@@ -69,7 +70,8 @@ public PopupMessageView(PopupView popupView)
 #if IOS
 			// The value for the IgnoreSafeArea property is being set by retrieving the safe area value from the main page.
 #pragma warning disable CS0618 // Suppressing CS0618 warning because Page.GetUseSafeArea is marked obsolete in .NET 10.
-			IgnoreSafeArea = !Microsoft.Maui.Controls.PlatformConfiguration.iOSSpecific.Page.GetUseSafeArea(PopupExtension.GetMainPage());
+			var mainPageForSafeArea = PopupExtension.GetMainPage();
+			IgnoreSafeArea = mainPageForSafeArea is null || !Microsoft.Maui.Controls.PlatformConfiguration.iOSSpecific.Page.GetUseSafeArea(mainPageForSafeArea);
 #pragma warning restore CS0618
 #endif
 			_popupView = popupView;

maui/src/Shimmer/ShimmerDrawable.cs

@@ -88,6 +88,12 @@ internal partial class ShimmerDrawable : SfDrawableView
 		const float PersonaRectangleHeightFactor = 0.33f;
 		const float PersonaRowSpacingFactor = 0.1f;
 
+		// Cached Point values to avoid per-call allocations in CreateWavePaint.
+		static readonly Point s_pointOrigin = new(0, 0);
+		static readonly Point s_pointRight = new(1, 0);
+		static readonly Point s_pointBottom = new(0, 1);
+		static readonly Point s_pointDiagonal = new(1, 1);
+
 		#endregion
 
 		#region Constructor
@@ -161,24 +167,24 @@ internal void CreateWavePaint()
 			switch (Shimmer?.WaveDirection)
 			{
 				case ShimmerWaveDirection.LeftToRight:
-					_gradient.StartPoint = new Point(0, 0);
-					_gradient.EndPoint = new Point(1, 0);
+					_gradient.StartPoint = s_pointOrigin;
+					_gradient.EndPoint = s_pointRight;
 					break;
 				case ShimmerWaveDirection.TopToBottom:
-					_gradient.StartPoint = new Point(0, 0);
-					_gradient.EndPoint = new Point(0, 1);
+					_gradient.StartPoint = s_pointOrigin;
+					_gradient.EndPoint = s_pointBottom;
 					break;
 				case ShimmerWaveDirection.RightToLeft:
-					_gradient.StartPoint = new Point(1, 0);
-					_gradient.EndPoint = new Point(0, 0);
+					_gradient.StartPoint = s_pointRight;
+					_gradient.EndPoint = s_pointOrigin;
 					break;
 				case ShimmerWaveDirection.BottomToTop:
-					_gradient.StartPoint = new Point(0, 1);
-					_gradient.EndPoint = new Point(0, 0);
+					_gradient.StartPoint = s_pointBottom;
+					_gradient.EndPoint = s_pointOrigin;
 					break;
 				default:
-					_gradient.StartPoint = new Point(0, 0);
-					_gradient.EndPoint = new Point(1, 1);
+					_gradient.StartPoint = s_pointOrigin;
+					_gradient.EndPoint = s_pointDiagonal;
 					break;
 			}
 		}
@@ -275,9 +281,12 @@ void DrawCustomViewChildren(View view, Point position)
 
 			if (view is Layout layout)
 			{
-				foreach (View item in layout.Children.Cast<View>())
+				foreach (View item in layout.Children)
 				{
-					DrawCustomViewChildren(item, new Point(item.X + position.X, item.Y + position.Y));
+					if (item is View childView)
+					{
+						DrawCustomViewChildren(childView, new Point(childView.X + position.X, childView.Y + position.Y));
+					}
 				}
 			}
 			else if (view is ContentView contentView && contentView.Content != null)

maui/src/TabView/Control/HorizontalContent/SfHorizontalContent.iOS.cs

@@ -16,6 +16,7 @@ internal partial class SfHorizontalContent
 		bool _isTapGestureRemoved;
 		UIPanGestureRecognizer? _panGesture;
 		LayoutViewExt? _nativeView;
+		static readonly System.Collections.Concurrent.ConcurrentDictionary<Type, bool> _drawActionTypeCache = new();
 
 		#endregion
 
@@ -80,7 +81,8 @@ void ITapGestureListener.ShouldHandleTap(object view)
 					var touchViewType = touchView?.GetType();
                     if (touchViewType is not null)
                     {
-						var hasDrawAction = touchViewType.GetProperties().Any(p => p.PropertyType == typeof(Action<ICanvas, RectF>));
+						var hasDrawAction = _drawActionTypeCache.GetOrAdd(touchViewType, type =>
+							type.GetProperties().Any(p => p.PropertyType == typeof(Action<ICanvas, RectF>)));
                         if (hasDrawAction)
                         {
                             this._canProcessTouch = false;

maui/src/TextInputLayout/SfTextInputLayout.Methods.cs

@@ -161,28 +161,34 @@ internal void OnTextInputViewTextChanged(object? sender, TextChangedEventArgs e)
 			if (sender is InputView)
 			{
 				Text = e.NewTextValue;
+				bool needsRedraw = false;
 
 				if (string.IsNullOrEmpty(Text) && !IsLayoutFocused)
 				{
 					if (!IsHintAlwaysFloated)
 					{
 						IsHintFloated = false;
 						IsHintDownToUp = true;
-						InvalidateDrawable();
+						needsRedraw = true;
 					}
 				}
 				else if (!string.IsNullOrEmpty(Text) && !IsHintFloated)
 				{
 					IsHintFloated = true;
 					IsHintDownToUp = false;
-					InvalidateDrawable();
+					needsRedraw = true;
 				}
 
 				SetCustomDescription(this.Content);
 
 				// Clear icon can't draw when isClearIconVisible property updated based on text.
 				// So here call the InvalidateDrawable to draw the clear icon.
 				if (Text?.Length <= 1)
+				{
+					needsRedraw = true;
+				}
+
+				if (needsRedraw)
 				{
 					InvalidateDrawable();
 				}