FloatingPanel is not able to be interacted with when added to a UIHostingController in Xcode 16 beta with iOS 18 beta.

Description

When using the latest developer tools of Xcode 16 beta 4 and iOS 18, when a FloatingPanelController is added to a UIHostingController as its parent, the floating panel cannot be interacted with using touch events. All touch events pass through the floating panel to the view behind it.

Expected behavior

I should be able to add a FloatingPanelController to a UIHostingController and interact with the floating panel as normal.

Steps to reproduce

I have reproduced this in a project here

Create a project in Xcode using storyboards with a UINavigationController and a root view controller with a button. The button creates a SwiftUI View, and a subclass of UIHostingViewController and pushes the view controller.

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
    }

    @IBAction func navigate(_ sender: Any) {
        let view = HostingControllerExampleView() //Any SwiftUI View
        let hostingViewController = MyUIHostingController(rootView: view)
        self.navigationController?.pushViewController(hostingViewController, animated: true)
    }
}

The subclassed UIHostingViewController creates the floating panel and adds it in viewDidLoad

class MyUIHostingController<Content>: UIHostingController<Content> where Content: View {

    var fpc: FloatingPanelController!

    override func viewDidLoad() {
        super.viewDidLoad()

        //Add panel to view
        fpc = FloatingPanelController()

        let storyboard = UIStoryboard(name: "Main", bundle: nil)
        let drawerViewController = storyboard.instantiateViewController(withIdentifier: "Drawer")

        fpc.set(contentViewController: drawerViewController)
        fpc.addPanel(toParent: self)
    }
}

Anything in the drawer can not be interacted with and touch events go through to the UIHostingViewController behind the floating panel.

Environment

Library version 2.8.4

Installation method

Swift Package Manager

iOS version(s) iOS 18 developer beta 4

Xcode version Xcode 16 beta 4

scenee / FloatingPanel