ASAccessorySession is missing Constructor

[aberus]

Apple platform

iOS

Framework version

net9.0-*

Affected platform version

VS 2022 17.13.2, .NET 9.0.100 iOS 18.2.9180

Description

Based on swift example the ASAccessorySession should be initialized from constructor, in the api bindings is marked with DisableDefaultCtor attribute or a partial class should be implemented with constructor.

macios/src/accessorysetupkit.cs

Lines 109 to 110 in de4717a

	[DisableDefaultCtor]
	interface ASAccessorySession {

import AccessorySetupKit

// Create a session
var session = ASAccessorySession()

// Activate session with event handler
session.activate(on: DispatchQueue.main, eventHandler: handleSessionEvent(event:))

// Handle event
func handleSessionEvent(event: ASAccessoryEvent) {  
    switch event.eventType {
    case .activated:
        print("Session is activated and ready to use")
        print(session.accessories)
    default:
        print("Received event type \(event.eventType)")
    }
}

Steps to Reproduce

Create an empty solution and try to create a new object ASAccessorySession.
Cannot create & compile a project with ASAccessorySession session = new();

Did you find any workaround?

No response

Relevant log output

No response

[rolfbjarne]

I can confirm this, and a fix is in progress.

This is untested, but something like this should work as a workaround:

using System.Runtime.InteropServices;

using ObjCRuntime;

[DllImport ("/usr/lib/libobjc.dylib")]
static extern IntPtr IntPtr_objc_msgSend (IntPtr receiver, IntPtr selector);

var ptr = IntPtr_objc_msgSend (Class.GetHandle (typeof (ASAccessorySession), Selector.GetHandle ("alloc")));
ptr = IntPtr_objc_msgSend (ptr, Selector.GetHandle ("init"));
var session = Runtime.GetNSObject<ASAccessorySession> (ptr, true);

[cho-trackman]

Looks like ASDiscoveryDescriptor has the same issue, am I missing an update or something?

[rolfbjarne]

Looks like ASDiscoveryDescriptor has the same issue, am I missing an update or something?

Fix in progress: #23040