From 3e28520bad8e478eca28dcab813671618dace3ba Mon Sep 17 00:00:00 2001
From: Simon Rozsival <simon@rozsival.com>
Date: Mon, 13 Jul 2026 19:47:53 +0200
Subject: [PATCH] [Mono.Android] Remove dead `ViewTreeObserver.cs`

The entire body of `Android.Views/ViewTreeObserver.cs` was disabled with
`#if false`, so it compiled to nothing more than an empty
`public partial class ViewTreeObserver { }`. The actual `ViewTreeObserver`
type is produced by the binding generator, so this hand-written partial
contributed nothing to the compiled assembly and its public API surface is
unchanged by the removal.

Delete the dead file and its explicit `<Compile Include>` entry in
`Mono.Android.csproj` (the project lists sources explicitly, so the entry
must be removed too).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 7898fa8d-194d-4aad-8d0f-9eb18d8d1f7f
---
 .../Android.Views/ViewTreeObserver.cs         | 40 -------------------
 src/Mono.Android/Mono.Android.csproj          |  1 -
 2 files changed, 41 deletions(-)
 delete mode 100644 src/Mono.Android/Android.Views/ViewTreeObserver.cs

diff --git a/src/Mono.Android/Android.Views/ViewTreeObserver.cs b/src/Mono.Android/Android.Views/ViewTreeObserver.cs
deleted file mode 100644
index bafa1bbb409..00000000000
--- a/src/Mono.Android/Android.Views/ViewTreeObserver.cs
+++ /dev/null
@@ -1,40 +0,0 @@
-using System;
-
-using Java.Interop;
-
-namespace Android.Views {
-
-	public partial class ViewTreeObserver {
-#if false
-
-#region "Event implementation for Android.Views.ViewTreeObserver.IOnGlobalLayoutListener"
-		public event EventHandler GlobalLayout {
-			add {
-				global::Java.Interop.EventHelper.AddEventHandler<Android.Views.ViewTreeObserver.IOnGlobalLayoutListener, Android.Views.ViewTreeObserver.IOnGlobalLayoutListenerImplementor>(
-						ref weak_implementor_AddOnGlobalLayoutListener,
-						__CreateIOnGlobalLayoutListenerImplementor,
-						AddOnGlobalLayoutListener,
-						__h => __h.Handler += value);
-			}
-			remove {
-#if ANDROID_16
-				if (global::Android.OS.Build.VERSION.SdkInt >= global::Android.OS.BuildVersionCodes.JellyBean)
-					global::Java.Interop.EventHelper.RemoveEventHandler<Android.Views.ViewTreeObserver.IOnGlobalLayoutListener, Android.Views.ViewTreeObserver.IOnGlobalLayoutListenerImplementor>(
-							ref weak_implementor_AddOnGlobalLayoutListener,
-							Android.Views.ViewTreeObserver.IOnGlobalLayoutListenerImplementor.__IsEmpty,
-							RemoveOnGlobalLayoutListener,
-							__h => __h.Handler -= value);
-				else
-#endif
-					global::Java.Interop.EventHelper.RemoveEventHandler<Android.Views.ViewTreeObserver.IOnGlobalLayoutListener, Android.Views.ViewTreeObserver.IOnGlobalLayoutListenerImplementor>(
-							ref weak_implementor_AddOnGlobalLayoutListener,
-							Android.Views.ViewTreeObserver.IOnGlobalLayoutListenerImplementor.__IsEmpty,
-							RemoveGlobalOnLayoutListener,
-							__h => __h.Handler -= value);
-			}
-		}
-#endregion
-
-#endif  // false
-	}
-}
diff --git a/src/Mono.Android/Mono.Android.csproj b/src/Mono.Android/Mono.Android.csproj
index da87e0ef57d..73941e44b8d 100644
--- a/src/Mono.Android/Mono.Android.csproj
+++ b/src/Mono.Android/Mono.Android.csproj
@@ -294,7 +294,6 @@
     <Compile Include="Android.Views\LayoutInflater.cs" />
     <Compile Include="Android.Views\MotionEvent.cs" />
     <Compile Include="Android.Views\View.cs" />
-    <Compile Include="Android.Views\ViewTreeObserver.cs" />
     <Compile Include="Android.Views\Window.cs" />
     <Compile Include="Android.Views.Accessibility\AccessibilityEvent.cs" />
     <Compile Include="Android.Views.Accessibility\AccessibilityManager.cs" />