From: Stephane Delcroix <stephane@delcroix.org>
Date: Wed, 21 Nov 2018 07:31:33 +0000 (+0100)
Subject: [iOS] ScrollViewRenderer: clear the renderer (#4489)
X-Git-Tag: accepted/tizen/5.5/unified/20200421.150457~655
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e38776cdeca4caae6d87ad3649f345700301b203;p=platform%2Fcore%2Fcsapi%2Fxsf.git

[iOS] ScrollViewRenderer: clear the renderer (#4489)

On Dispose(), the Renderer is supposed to be cleared on the element.
That's taken care of by VisualElementRenderer`1.Dispose().
Unfortunately, ScrollViewRenderer doesn't inherit from it.

I find it strange that this never was triggered before the Shell, but
I'm learning to live surrounded by strange behaviors.

-fixes #4381
---

diff --git a/Xamarin.Forms.Platform.iOS/Renderers/ScrollViewRenderer.cs b/Xamarin.Forms.Platform.iOS/Renderers/ScrollViewRenderer.cs
index 31bab55..47281d0 100644
--- a/Xamarin.Forms.Platform.iOS/Renderers/ScrollViewRenderer.cs
+++ b/Xamarin.Forms.Platform.iOS/Renderers/ScrollViewRenderer.cs
@@ -160,6 +160,7 @@ namespace Xamarin.Forms.Platform.iOS
 				if (_packager == null)
 					return;
 
+				Element?.ClearValue(Platform.RendererProperty);
 				SetElement(null);
 
 				_packager.Dispose();