From a13c1deca6686dc85ce9eed54d3622d37ec0a47c Mon Sep 17 00:00:00 2001
From: Tsanie Lily <tsorgy@gmail.com>
Date: Mon, 18 May 2020 09:27:32 +0800
Subject: [PATCH] fix: size alloc issue when UpSideDown in iPhone

---
 Pixiview.iOS/Renderers/AdaptedPageRenderer.cs | 4 ++++
 Pixiview/UI/AdaptedPage.cs                    | 8 +++++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/Pixiview.iOS/Renderers/AdaptedPageRenderer.cs b/Pixiview.iOS/Renderers/AdaptedPageRenderer.cs
index bc2202c..979a75c 100644
--- a/Pixiview.iOS/Renderers/AdaptedPageRenderer.cs
+++ b/Pixiview.iOS/Renderers/AdaptedPageRenderer.cs
@@ -93,6 +93,10 @@ namespace Pixiview.iOS.Renderers
                     var landscape =
                         lastOrientation == UIDeviceOrientation.LandscapeLeft ||
                         lastOrientation == UIDeviceOrientation.LandscapeRight;
+                    if (UIDevice.CurrentDevice.UserInterfaceIdiom == UIUserInterfaceIdiom.Phone)
+                    {
+                        landscape |= lastOrientation == UIDeviceOrientation.PortraitUpsideDown;
+                    }
                     page.OnOrientationChanged(landscape);
                 }
             }
diff --git a/Pixiview/UI/AdaptedPage.cs b/Pixiview/UI/AdaptedPage.cs
index 2dab670..f4467a1 100644
--- a/Pixiview/UI/AdaptedPage.cs
+++ b/Pixiview/UI/AdaptedPage.cs
@@ -99,8 +99,14 @@ namespace Pixiview.UI
         {
             var m = margin;
             var start = element.Margin.Top - m.Top;
+#if DEBUG
+            if (start != 0)
+            {
+                App.DebugPrint($"{element.GetType()}, margin-top from {element.Margin.Top} to {margin.Top}");
+            }
+#endif
             element.Margin = m;
-            if (start != 0 && animate)
+            if (start > 0 && animate)
             {
                 ViewExtensions.CancelAnimations(element);
                 element.Animate("margin", top =>