From c114627eafa57605fbf1cd0897577354413984c0 Mon Sep 17 00:00:00 2001
From: Dan Siegel <me@dansiegel.net>
Date: Fri, 31 May 2024 16:08:11 -0600
Subject: [PATCH] fix: delay nulling BindingContext on Android

---
 src/Maui/Prism.Maui/Common/MvvmHelpers.cs | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/src/Maui/Prism.Maui/Common/MvvmHelpers.cs b/src/Maui/Prism.Maui/Common/MvvmHelpers.cs
index 0754c73b9..f6bc06130 100644
--- a/src/Maui/Prism.Maui/Common/MvvmHelpers.cs
+++ b/src/Maui/Prism.Maui/Common/MvvmHelpers.cs
@@ -63,10 +63,20 @@ public static void DestroyPage(IView? view)
 
             InvokeViewAndViewModelAction<IDestructible>(view, v => v.Destroy());
 
-            if (view is Page page)
+            if (view is VisualElement visualElement)
             {
-                page.Behaviors?.Clear();
-                page.BindingContext = null;
+#if ANDROID
+                visualElement.Unloaded += VisualElementUnloaded;
+                void VisualElementUnloaded(object? sender, EventArgs e)
+                {
+                    visualElement.Unloaded -= VisualElementUnloaded;
+                    visualElement.Behaviors?.Clear();
+                    visualElement.BindingContext = null;
+                }
+#else
+                visualElement.Behaviors?.Clear();
+                visualElement.BindingContext = null;
+#endif
             }
         }
         catch (Exception ex)
@@ -75,7 +85,7 @@ public static void DestroyPage(IView? view)
         }
     }
 
-    private static void DestroyChildren(IView page)
+    private static void DestroyChildren(IView? page)
     {
         switch (page)
         {