[iOS] Fix Picker CharacterSpacing lost after item selection when Title is set

src/Core/src/Handlers/Picker/PickerHandler.iOS.cs

@@ -255,6 +255,8 @@ void UpdatePickerFromPickerSource(PickerSource? pickerSource)
 
 			PlatformView.Text = VirtualView.GetItem(pickerSource.SelectedIndex);
 			VirtualView.SelectedIndex = pickerSource.SelectedIndex;
+			// Re-apply kern: plain Text assignment above clears iOS kern attributes.
+			PlatformView.UpdateCharacterSpacing(VirtualView);
 		}
 
 		void UpdatePickerSelectedIndex(UIPickerView? pickerView, int formsIndex)

src/Core/src/Platform/iOS/PickerExtensions.cs

@@ -50,6 +50,8 @@ internal static void UpdatePicker(this MauiPicker platformPicker, IPicker picker
 				platformPicker.UpdatePickerTitle(picker);
 			}
 
+			platformPicker.UpdateCharacterSpacing(picker);
+
 			var pickerView = platformPicker.UIPickerView;
 			pickerView?.ReloadAllComponents();
 

src/Core/tests/DeviceTests/Handlers/Picker/PickerHandlerTests.iOS.cs

@@ -64,6 +64,91 @@ public async Task TextColorInitializesCorrectly()
 			Assert.Equal(expectedValue, values.PlatformViewValue);
 		}
 
+		[Theory(DisplayName = "Updating SelectedIndex Does Not Affect CharacterSpacing")]
+		[InlineData(0, 1)]
+		[InlineData(1, 0)]
+		public async Task SelectedIndexDoesNotAffectCharacterSpacing(int initialIndex, int newIndex)
+		{
+			var picker = new PickerStub
+			{
+				Title = "Select an Item",
+				Items = new[] { "Apple", "Banana", "Cherry" },
+				CharacterSpacing = 4,
+				SelectedIndex = initialIndex
+			};
+
+			await InvokeOnMainThreadAsync(() =>
+			{
+				var handler = CreateHandler(picker);
+				handler.UpdateValue(nameof(IPicker.CharacterSpacing));
+
+				var before = GetNativeCharacterSpacing(handler);
+				Assert.Equal(4.0, before);
+
+				picker.SelectedIndex = newIndex;
+				handler.UpdateValue(nameof(IPicker.SelectedIndex));
+
+				var after = GetNativeCharacterSpacing(handler);
+				Assert.Equal(4.0, after);
+			});
+		}
+
+		[Theory(DisplayName = "Selecting An Item With Done Keeps CharacterSpacing")]
+		[InlineData(0, 1)]
+		[InlineData(1, 0)]
+		public async Task SelectingItemWithDoneDoesNotAffectCharacterSpacing(int initialIndex, int newIndex)
+		{
+			var picker = new PickerStub
+			{
+				Title = "Select an Item",
+				Items = new[] { "Apple", "Banana", "Cherry" },
+				CharacterSpacing = 4,
+				SelectedIndex = initialIndex
+			};
+
+			await InvokeOnMainThreadAsync(() =>
+			{
+				var handler = CreateHandler(picker);
+				handler.UpdateValue(nameof(IPicker.CharacterSpacing));
+
+				var before = GetNativeCharacterSpacing(handler);
+				Assert.Equal(4.0, before);
+
+				var mauiPicker = GetNativePicker(handler);
+				mauiPicker.BecomeFirstResponder();
+
+				var pickerView = mauiPicker.UIPickerView;
+				var model = (PickerSource)pickerView.Model;
+				pickerView.Select(newIndex, 0, false);
+				model.Selected(pickerView, newIndex, 0);
+				TapDoneOnInputAccessoryView(mauiPicker);
+
+				Assert.Equal(picker.Items[newIndex], GetNativeText(handler));
+
+				var after = GetNativeCharacterSpacing(handler);
+				Assert.Equal(4.0, after);
+			});
+		}
+
+		void TapDoneOnInputAccessoryView(MauiPicker mauiPicker)
+		{
+			var toolbar = mauiPicker.InputAccessoryView as UIToolbar;
+			Assert.NotNull(toolbar);
+			Assert.NotNull(toolbar.Items);
+			Assert.NotEmpty(toolbar.Items);
+			var doneButton = toolbar.Items[toolbar.Items.Length - 1];
+			Assert.NotNull(doneButton);
+			Assert.NotNull(doneButton.Target);
+			Assert.NotNull(doneButton.Action);
+			UIApplication.SharedApplication.SendAction(doneButton.Action, doneButton.Target, doneButton, null);
+		}
+
+		double GetNativeCharacterSpacing(PickerHandler pickerHandler)
+		{
+			var mauiPicker = GetNativePicker(pickerHandler);
+			return mauiPicker.AttributedText.GetCharacterSpacing();
+		}
+
 		MauiPicker GetNativePicker(PickerHandler pickerHandler) =>
 			pickerHandler.PlatformView;