[Bug] DisplayActionSheet doesn't show up on macOS

[VitalyKnyazev]

Description

iOS app crashes with NRE on MacOS 14+ when DisplayActionSheet is called because PopoverPresentationController there is always null. Corresponding MAUI issue dotnet/maui#18156.

Steps to Reproduce

1. Create an iOS app with ListView and context menu that has "More" item.
2. Launch the app on Mac OS 14+
3. Click "More" item.

Expected Behavior

No crash, and the popup has "Cancel" button as clicking outside popup does not dismiss it.

Actual Behavior

The app crashes with NRE.

Basic Information

• Version with issue: 5.0.0.2622
• Last known good version: N/A
• Platform Target Frameworks:
  • iOS: 16.4.0.23
• NuGet Packages: 5.0.0.2622
• Affected Devices: MacOS 14.x+

Environment

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Microsoft Visual Studio Community 2022
Version 17.9.2
VisualStudio.17.Release/17.9.2+34622.214
Microsoft .NET Framework
Version 4.8.09032

Installed Version: Community

Visual C++ 2022 00482-90000-00000-AA136
Microsoft Visual C++ 2022

ASP.NET and Web Tools 17.9.197.37128
ASP.NET and Web Tools

Azure App Service Tools v3.0.0 17.9.197.37128
Azure App Service Tools v3.0.0

Azure Functions and Web Jobs Tools 17.9.197.37128
Azure Functions and Web Jobs Tools

C# Tools 4.9.0-3.24121.1+a98c90d56455379836dd5c845b35fa932b00cfa3
C# components used in the IDE. Depending on your project type and settings, a different version of the compiler may be used.

Common Azure Tools 1.10
Provides common services for use by Azure Mobile Services and Microsoft Azure Tools.

Extensibility Message Bus 1.4.39 (main@e8108eb)
Provides common messaging-based MEF services for loosely coupled Visual Studio extension components communication and integration.

Microsoft JVM Debugger 1.0
Provides support for connecting the Visual Studio debugger to JDWP compatible Java Virtual Machines

Mono Debugging for Visual Studio 17.9.0 (b3bca6f)
Support for debugging Mono processes with Visual Studio.

NuGet Package Manager 6.9.1
NuGet Package Manager in Visual Studio. For more information about NuGet, visit https://docs.nuget.org/

Razor (ASP.NET Core) 17.9.2.2412004+684740676513b3b208d5bd5b7f8786dab8d287b7
Provides languages services for ASP.NET Core Razor.

SQL Server Data Tools 17.9.51.1
Microsoft SQL Server Data Tools

TypeScript Tools 17.0.30103.2001
TypeScript Tools for Microsoft Visual Studio

Visual Basic Tools 4.9.0-3.24121.1+a98c90d56455379836dd5c845b35fa932b00cfa3
Visual Basic components used in the IDE. Depending on your project type and settings, a different version of the compiler may be used.

Visual F# Tools 17.9.0-beta.23614.3+a521e1cd420beb56c15faf6836184fadd2b7937a
Microsoft Visual F# Tools

Visual Studio IntelliCode 2.2
AI-assisted development for Visual Studio.

VisualStudio.DeviceLog 1.0
Information about my package

VisualStudio.Mac 1.0
Mac Extension for Visual Studio

Xamarin 17.9.0.138 (d17-9@60c2b9b)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.

Xamarin Designer 17.9.3.0 (remotes/origin/d17-9@f174974f91)
Visual Studio extension to enable Xamarin Designer tools in Visual Studio.

Xamarin Templates 17.9.0 (38e87ba)
Templates for building iOS, Android, and Windows apps with Xamarin and Xamarin.Forms.

Xamarin.Android SDK 13.2.2.0 (d17-5/45b0e14)
Xamarin.Android Reference Assemblies and MSBuild support.
Mono: d9a6e87
Java.Interop: xamarin/java.interop/d17-5@149d70fe
SQLite: xamarin/sqlite@68c69d8
Xamarin.Android Tools: xamarin/xamarin-android-tools/d17-5@ca1552d

Xamarin.iOS and Xamarin.Mac SDK 16.4.0.23 (9defd91b3)
Xamarin.iOS and Xamarin.Mac Reference Assemblies and MSBuild support.

Screenshots

Show/Hide Exception info

"innerExceptions": [
{
"type": "System.NullReferenceException",
"message": "Object reference not set to an instance of an object.",
"stackTrace": " at Xamarin.Forms.Platform.iOS.Platform.PresentPopUp (UIKit.UIWindow window, UIKit.UIAlertController alert, Xamarin.Forms.Internals.ActionSheetArguments arguments) <0x106e519d4 + 0x00494> in <03af6754ca4e406c857676d299e3ed7d#5be0c0225d9b4a02a673e86b952ee248>:0 \n at Xamarin.Forms.Platform.iOS.Platform.PresentActionSheet (Xamarin.Forms.Internals.ActionSheetArguments arguments) <0x106e513dc + 0x0058b> in <03af6754ca4e406c857676d299e3ed7d#5be0c0225d9b4a02a673e86b952ee248>:0 \n at Xamarin.Forms.Platform.iOS.Platform+<>c__DisplayClass57_0.b__3 (Xamarin.Forms.Page sender, Xamarin.Forms.Internals.ActionSheetArguments arguments) <0x106e540d4 + 0x00027> in <03af6754ca4e406c857676d299e3ed7d#5be0c0225d9b4a02a673e86b952ee248>:0 \n at (wrapper managed-to-native) System.Reflection.RuntimeMethodInfo.InternalInvoke(System.Reflection.RuntimeMethodInfo,object,object[],System.Exception&)\n at System.Reflection.RuntimeMethodInfo.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) <0x104fe51d0 + 0x000ef> in <aae03b95719e488f8a163bae4d2b5dcb#5be0c0225d9b4a02a673e86b952ee248>:0 ",
"wrapperSdkName": "appcenter.xamarin"
}
],

Reproduction Link

N/A yet

Workaround

N/A, except patching and recompiling Xamarin.Forms package locally