From 3cf580e541a80506bfa3f7724a44d5bc596e1b40 Mon Sep 17 00:00:00 2001
From: Kenny Guo <kennyguo@microsoft.com>
Date: Mon, 26 Jul 2021 21:06:49 +0800
Subject: [PATCH] Disable Mica before close the window to resolve a crash

---
 src/Calculator/App.xaml.cs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Calculator/App.xaml.cs b/src/Calculator/App.xaml.cs
index a4586952..21702b66 100644
--- a/src/Calculator/App.xaml.cs
+++ b/src/Calculator/App.xaml.cs
@@ -440,6 +440,10 @@ namespace CalculatorApp
 
             mainPage.UnregisterEventHandlers();
 
+            // TODO, remove this workaround after Mica fix
+            // Workaround app crash caused by Mica in multi-view case.
+            Microsoft.UI.Xaml.Controls.BackdropMaterial.SetApplyToRootOrPageBackground(mainPage, false);
+
             await frameService.HandleViewRelease();
             await Task.Run(() =>
             {