[iOS] Fix SearchBar focus issues

src/Core/src/Handlers/SearchBar/SearchBarHandler.iOS.cs

@@ -28,7 +28,9 @@ protected override void ConnectHandler(MauiSearchBar platformView)
 			platformView.TextSetOrChanged += OnTextPropertySet;
 			platformView.OnMovedToWindow += OnMovedToWindow;
 			platformView.ShouldChangeTextInRange += ShouldChangeText;
+			platformView.OnEditingStarted += OnEditingStarted;
 			platformView.EditingChanged += OnEditingChanged;
+			platformView.OnEditingStopped += OnEditingStopped;
 
 			base.ConnectHandler(platformView);
 		}
@@ -47,7 +49,9 @@ protected override void DisconnectHandler(MauiSearchBar platformView)
 			platformView.TextSetOrChanged -= OnTextPropertySet;
 			platformView.ShouldChangeTextInRange -= ShouldChangeText;
 			platformView.OnMovedToWindow -= OnMovedToWindow;
+			platformView.OnEditingStarted -= OnEditingStarted;
 			platformView.EditingChanged -= OnEditingChanged;
+			platformView.OnEditingStopped -= OnEditingStopped;
 
 			base.DisconnectHandler(platformView);
 		}
@@ -182,6 +186,12 @@ bool ShouldChangeText(UISearchBar searchBar, NSRange range, string text)
 			return newLength <= VirtualView?.MaxLength;
 		}
 
+		void OnEditingStarted(object? sender, EventArgs e)
+		{
+			if (VirtualView is not null)
+				VirtualView.IsFocused = true;
+		}
+
 		void OnEditingChanged(object? sender, EventArgs e)
 		{
 			if (VirtualView == null || _editor == null)
@@ -192,6 +202,12 @@ void OnEditingChanged(object? sender, EventArgs e)
 			UpdateCancelButtonVisibility();
 		}
 
+		void OnEditingStopped(object? sender, EventArgs e)
+		{
+			if (VirtualView is not null)
+				VirtualView.IsFocused = false;
+		}
+
 		void UpdateCancelButtonVisibility()
 		{
 			if (PlatformView.ShowsCancelButton != VirtualView.ShouldShowCancelButton())

src/Core/tests/DeviceTests/Handlers/SearchBar/SearchBarHandlerTests.iOS.cs

@@ -3,6 +3,7 @@
 using Microsoft.Maui.DeviceTests.Stubs;
 using Microsoft.Maui.Graphics;
 using Microsoft.Maui.Handlers;
+using Microsoft.Maui.Hosting;
 using ObjCRuntime;
 using UIKit;
 using Xunit;
@@ -116,17 +117,17 @@ public async Task CharacterSpacingInitializesCorrectly()
 			string originalText = "Test";
 			var xplatCharacterSpacing = 4;
 
-			var slider = new SearchBarStub()
+			var searchBar = new SearchBarStub()
 			{
 				CharacterSpacing = xplatCharacterSpacing,
 				Text = originalText
 			};
 
-			var values = await GetValueAsync(slider, (handler) =>
+			var values = await GetValueAsync(searchBar, (handler) =>
 			{
 				return new
 				{
-					ViewValue = slider.CharacterSpacing,
+					ViewValue = searchBar.CharacterSpacing,
 					PlatformViewValue = GetNativeCharacterSpacing(handler)
 				};
 			});
@@ -135,6 +136,72 @@ public async Task CharacterSpacingInitializesCorrectly()
 			Assert.Equal(xplatCharacterSpacing, values.PlatformViewValue);
 		}
 
+		[Fact]
+		public async Task SearchBarFocusedIsWorking()
+		{
+			EnsureHandlerCreated(builder =>
+			{
+				builder.ConfigureMauiHandlers(handler =>
+				{
+					handler.AddHandler<VerticalStackLayoutStub, LayoutHandler>();
+					handler.AddHandler<SearchBarStub, SearchBarHandler>();
+				});
+			});
+
+			var layout = new VerticalStackLayoutStub();
+
+			var searchBar1 = new SearchBarStub
+			{
+				Text = "SearchBar 1"
+			};
+
+			var searchBar2 = new SearchBarStub
+			{
+				Text = "SearchBar 2"
+			};
+
+			layout.Add(searchBar1);
+
+			layout.Width = 100;
+			layout.Height = 150;
+
+			await InvokeOnMainThreadAsync(async () =>
+			{
+				var contentViewHandler = CreateHandler<LayoutHandler>(layout);
+				await contentViewHandler.PlatformView.AttachAndRun(async () =>
+				{
+					searchBar1.ToPlatform().Focus(new FocusRequest(false));
+					await searchBar1.WaitForFocused();
+					Assert.True(searchBar1.IsFocused);
+					Assert.False(searchBar2.IsFocused);
+				});
+			});
+		}
+
+		[Fact]
+		public async Task SearchBarUnFocusedIsWorking()
+		{
+			var searchBar = new SearchBarStub
+			{
+				Text = "SearchBar"
+			};
+
+			await InvokeOnMainThreadAsync(async () =>
+			{
+				var searchBarHandler = CreateHandler(searchBar);
+				await searchBarHandler.PlatformView.AttachAndRun(async () =>
+				{
+					searchBar.Handler.Invoke(nameof(IView.Focus), new FocusRequest(false));
+					await searchBar.WaitForFocused();
+					Assert.True(searchBar.IsFocused);
+
+					searchBar.Handler.Invoke(nameof(IView.Unfocus), new FocusRequest(false));
+					await searchBar.WaitForUnFocused();
+					Assert.False(searchBar.IsFocused);
+				});
+			});
+		}
+
 		double GetInputFieldHeight(SearchBarHandler searchBarHandler)
 		{
 			return GetNativeSearchBar(searchBarHandler).Bounds.Height;