From 0e318b951c83cbf410f1140b8c15bd63e331bdc9 Mon Sep 17 00:00:00 2001
From: Chris Pulman <chris.pulman@yahoo.com>
Date: Fri, 26 Apr 2024 21:01:33 +0100
Subject: [PATCH] Fix for WireUpControls throws exception (#3795)

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[Contribute](https://github.com/reactiveui/reactiveui#contribute)
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**What kind of change does this PR introduce?**
<!-- Bug fix, feature, docs update, ... -->

Fix for #3714

**What is the current behavior?**
<!-- You can also link to an open issue here. -->

WireUpControls throws exception with .Net 8.0 Android

**What is the new behavior?**
<!-- If this is a feature change -->

WireUpControls works with .Net 8.0 Android

**What might this PR break?**

none expected

**Please check if the PR fulfills these requirements**
- [ ] Tests for the changes have been added (for bug fixes / features)
- [ ] Docs have been added / updated (for bug fixes / features)

**Other information**:
---
 .../Platforms/android/ControlFetcherMixin.cs  | 23 +++++++++++--------
 1 file changed, 13 insertions(+), 10 deletions(-)

diff --git a/src/ReactiveUI/Platforms/android/ControlFetcherMixin.cs b/src/ReactiveUI/Platforms/android/ControlFetcherMixin.cs
index 1704d7400e..cf08e4ccf4 100644
--- a/src/ReactiveUI/Platforms/android/ControlFetcherMixin.cs
+++ b/src/ReactiveUI/Platforms/android/ControlFetcherMixin.cs
@@ -227,16 +227,19 @@ private static int GetControlIdByName(Assembly assembly, string? name)
                                        assembly,
                                        currentAssembly =>
                                        {
-                                           var resources = currentAssembly.GetModules().SelectMany(x => x.GetTypes()).First(x => x.Name == "Resource");
-
-                                           var idType = resources.GetNestedType("Id");
-
-                                           if (idType is null)
-                                           {
-                                               throw new InvalidOperationException("Id is not a valid nested type in the resources.");
-                                           }
-
-                                           return idType.GetFields()
+#if NET8_0_OR_GREATER
+                                            var resources = Assembly.Load(currentAssembly
+                                                            .GetReferencedAssemblies()
+                                                            .First(an => an.FullName.StartsWith("_Microsoft.Android.Resource.Designer")).ToString())
+                                                            .GetModules()
+                                                            .SelectMany(x => x.GetTypes())
+                                                            .First(x => x.Name == "ResourceConstant");
+#else
+                                            var resources = currentAssembly.GetModules().SelectMany(x => x.GetTypes()).First(x => x.Name == "Resource");
+#endif
+
+                                            var idType = resources.GetNestedType("Id") ?? throw new InvalidOperationException("Id is not a valid nested type in the resources.");
+                                            return idType.GetFields()
                                                         .Where(x => x.FieldType == typeof(int))
                                                         .ToDictionary(k => k.Name, v => ((int?)v.GetRawConstantValue()) ?? 0, StringComparer.InvariantCultureIgnoreCase);
                                        });