Popover in Toolbar Causes Crash in Catalyst App on macOS 26

Question

Created Aug ’25

Replies 5

Boosts 1

Participants 3

Hi everyone,

I’ve encountered an issue where using a popover inside the toolbar of a Catalyst app causes a crash on macOS 26 beta 5 with Xcode 26 beta 5. Here’s a simplified code snippet:

import SwiftUI

struct ContentView: View {
    
    @State private var isPresentingPopover = false
    
    var body: some View {
        NavigationStack {
            VStack {
            }
            .padding()
            .toolbar {
                ToolbarItem {
                    Button(action: { isPresentingPopover.toggle() }) {
                        Image(systemName: "bubble")
                    }
                    .popover(isPresented: $isPresentingPopover) {
                        Text("Hello")
                            .font(.largeTitle)
                            .padding()
                    }
                }
            }
        }
    }
    
}

Steps to reproduce:

Create a new iOS app using Xcode 26 beta 5.
Enable Mac Catalyst (Match iPad).
Add the above code to show a Popover from a toolbar button.
Run the app on macOS 26, then click the toolbar button.

The app crashes immediately upon clicking the toolbar button.

Screenshot 2025-08-08 at 16.28.53.png

Has anyone else run into this? Any workarounds or suggestions would be appreciated!

Thanks!

Boost

Answer 1

Gong OP

Aug ’25

FB19460396

0

Answer 2

HOsy OP

Sep ’25

Same problem with UIKit on Catalyst showing a popover from a UIBarButtonItem with iOS 26 released version.

@Gong did you find a workaround?

0

Answer 3

Gong OP

Sep ’25

@HOsy No :( no luck with the popover. I workaround the crash by implementing a custom floating panel using UIViewControllerRepresentable.

0

Answer 4

awulf OP

1w

I'm experiencing the exact same crash in UIKit. With UIBarButtonItems and Popovers. On Mac Catalyst app build with Xcode 26.2 (17C52) on Tahoe 26.2.

Screenshot 2026-01-22 at 10.14.52 am.png

Same will happen with UIView as a source when presenting the a UIViewController if a zoom transition is set vc.preferredTransition = .zoom { _ in sendingView }

Setting the info.plist UIDesignRequiresCompatibility to YES, prevents the default zoom transition and shows the popup with arrows.

0

Answer 5

awulf OP

1w

Here is my work around for UIKit

extension UIViewController {
    
    @objc func configureAsPopoverWith(sender: Any?) {
        self.modalPresentationStyle = .popover
        var enableZoom: Bool = true
        var source: Any? = sender
#if targetEnvironment(macCatalyst)
        // PopOver with Zoom crashes for macOS 26
        if #available(iOS 26.0, *), let view = (sender as? UIBarButtonItem)?.value(forKey: "view") as? UIView {
            source = view
        }
        enableZoom = false
#endif
        
        if let sourceView = source as? UIView {
            self.popoverPresentationController?.sourceView = sourceView
            self.popoverPresentationController?.sourceRect = sourceView.bounds
            if #available(iOS 18.0, *), enableZoom {
                self.preferredTransition = .zoom { _ in sourceView }
            }
        } else if let sourceItem = source as? UIBarButtonItem {
            self.popoverPresentationController?.barButtonItem = sourceItem
        }
    }
    
}

0