Compare keyboard overlap at pixel boundaries

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: de9c7c01-82c4-42fd-9ab7-882279aadd15

Author: Copilot CI

src/Controls/tests/DeviceTests/Elements/View/ViewTests.iOS.cs

@@ -644,9 +644,21 @@ await parentPlatformView.AttachAndRun(() =>
 						childPlatformView.LayoutSubviews();
 
 						Assert.Equal(0, parentPlatformView.SafeAreaInsetsReadCount);
+
+						var subPixelStep = 0.4 / (double)parentPlatformView.Window!.Screen.Scale;
+						childPlatformView.Transform = CGAffineTransform.MakeTranslation(0, (nfloat)subPixelStep);
+						childPlatformView.LayoutSubviews();
+
+						Assert.Equal(0, parentPlatformView.SafeAreaInsetsReadCount);
+
+						childPlatformView.Transform = CGAffineTransform.MakeTranslation(0, (nfloat)(subPixelStep * 2));
+						childPlatformView.LayoutSubviews();
+
+						Assert.True(parentPlatformView.SafeAreaInsetsReadCount > 0);
 					}
 					finally
 					{
+						childPlatformView.Transform = CGAffineTransform.MakeIdentity();
 						NSNotificationCenter.DefaultCenter.PostNotificationName(
 							UIKeyboard.WillHideNotification,
 							null);

src/Core/src/Platform/iOS/MauiView.cs

@@ -414,7 +414,7 @@ bool HasSoftInputBottomOverlapChanged()
 				return previousOverlap.HasValue != overlap.HasValue;
 
 			var displayScale = (double)(Window?.Screen.Scale ?? UIScreen.MainScreen.Scale);
-			return !SafeAreaPadding.IsZeroAtPixelLevel(overlap.Value - previousOverlap.Value, displayScale);
+			return !SafeAreaPadding.AreEqualAtPixelLevel(previousOverlap.Value, overlap.Value, displayScale);
 		}
 
 		SafeAreaPadding GetAdjustedSafeAreaInsets() => GetAdjustedSafeAreaInsets(out _);

src/Core/src/Platform/iOS/SafeAreaPadding.cs

@@ -37,14 +37,17 @@ public CGRect ToCGRect() =>
 	public bool EqualsAtPixelLevel(SafeAreaPadding other)
 	{
 		var scale = (double)UIScreen.MainScreen.Scale;
-		return RoundToPixel(Left, scale) == RoundToPixel(other.Left, scale)
-			&& RoundToPixel(Right, scale) == RoundToPixel(other.Right, scale)
-			&& RoundToPixel(Top, scale) == RoundToPixel(other.Top, scale)
-			&& RoundToPixel(Bottom, scale) == RoundToPixel(other.Bottom, scale);
+		return AreEqualAtPixelLevel(Left, other.Left, scale)
+			&& AreEqualAtPixelLevel(Right, other.Right, scale)
+			&& AreEqualAtPixelLevel(Top, other.Top, scale)
+			&& AreEqualAtPixelLevel(Bottom, other.Bottom, scale);
 	}
 
+	public static bool AreEqualAtPixelLevel(double first, double second, double scale)
+		=> RoundToPixel(first, scale) == RoundToPixel(second, scale);
+
 	public static bool IsZeroAtPixelLevel(double value, double scale)
-		=> RoundToPixel(value, scale) == 0;
+		=> AreEqualAtPixelLevel(value, 0, scale);
 
 	static double RoundToPixel(double value, double scale)
 		=> Math.Round(value * scale, MidpointRounding.AwayFromZero);