From 763461246d457071ff99160e718c0462236a313f Mon Sep 17 00:00:00 2001
From: Matthew Leibowitz <mattleibow@live.com>
Date: Tue, 19 Feb 2019 14:36:59 +0200
Subject: [PATCH] [iOS] Fix the layout of the button (#5221) * fixes #5160

- it appears that iOS has a nice little delay when setting the title to the layout
---
 .../GalleryPages/ButtonLayoutGalleryPage.xaml               |  4 ++++
 Xamarin.Forms.Platform.iOS/Renderers/ButtonLayoutManager.cs | 13 ++++++++++---
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/Xamarin.Forms.Controls/GalleryPages/ButtonLayoutGalleryPage.xaml b/Xamarin.Forms.Controls/GalleryPages/ButtonLayoutGalleryPage.xaml
index 51ec220..1b7417d 100644
--- a/Xamarin.Forms.Controls/GalleryPages/ButtonLayoutGalleryPage.xaml
+++ b/Xamarin.Forms.Controls/GalleryPages/ButtonLayoutGalleryPage.xaml
@@ -24,6 +24,10 @@
 				<Button Text="Some Text" />
 				<Button Image="bank.png" />
 				<Button Text="Some Text" Image="bank.png" />
+				<Button Text="Some Text" Image="bank.png" ContentLayout="Top, 8" />
+				<Button Text="Some Text" Image="bank.png" ContentLayout="Right, 8" />
+				<Button Text="Some Text" Image="bank.png" ContentLayout="Bottom, 8" />
+				<Button Text="Some Text" Image="bank.png" ContentLayout="Left, 8" />
 			</StackLayout>
 
 			<Label Text="Autosized:" Margin="0,0,0,-5" />
diff --git a/Xamarin.Forms.Platform.iOS/Renderers/ButtonLayoutManager.cs b/Xamarin.Forms.Platform.iOS/Renderers/ButtonLayoutManager.cs
index a18d58d..a45b8db 100644
--- a/Xamarin.Forms.Platform.iOS/Renderers/ButtonLayoutManager.cs
+++ b/Xamarin.Forms.Platform.iOS/Renderers/ButtonLayoutManager.cs
@@ -2,6 +2,7 @@
 using System.ComponentModel;
 using System.Threading.Tasks;
 using CoreGraphics;
+using Foundation;
 using UIKit;
 
 namespace Xamarin.Forms.Platform.iOS
@@ -263,9 +264,15 @@ namespace Xamarin.Forms.Platform.iOS
 			{
 				// TODO: Do not use the title label as it is not yet updated and
 				//       if we move the image, then we technically have more
-				//       space and will require a new laoyt pass.
-
-				var titleRect = control.TitleLabel.Bounds.Size;
+				//       space and will require a new layout pass.
+
+				var title =
+					control.CurrentAttributedTitle ??
+					new NSAttributedString(control.CurrentTitle, new UIStringAttributes { Font = control.TitleLabel.Font });
+				var titleRect = title.GetBoundingRect(
+					control.Bounds.Size,
+					NSStringDrawingOptions.UsesLineFragmentOrigin | NSStringDrawingOptions.UsesFontLeading,
+					null);
 
 				var titleWidth = titleRect.Width;
 				var titleHeight = titleRect.Height;
-- 
2.7.4