iOS: Present a new view controller from a Tauri plugin

[setoelkahfi]

I'm learning to develop an iOS plugin that will simply open a new view controller from an invoke method. Since I got the view controller in the PluginManager, I thought I could just present/push a new view controller from that controller or from the navigationController in that controller. But apparently it doesn't do anything:

class IosWindow: Plugin {

    @objc public func ping(_ invoke: Invoke) throws {
        let args = try invoke.parseArgs(PingArgs.self)
        guard let viewController = manager.viewController else {
            print("Cannot get root view controller.")
            return
        }
        
        //Task { @MainActor in
            //viewController.modalPresentationStyle = .popover
            //viewController.present(UIViewController(), animated: true)
           // Same effect:
            // viewController.navigationController?.pushViewController(UIViewController(), animated: true)
        //}
        
        // Commented this, no luck
        invoke.resolve(["value": "Olaaaa, \(args.value ?? "default"), \(viewController.description)"])
        
    }

I tried using async throws in my ping, but it crashes. Does anyone know if this possible at all?

[setoelkahfi]

Never mind, this looks good:

    @objc public func ping(_ invoke: Invoke) throws {
        let args = try invoke.parseArgs(PingArgs.self)
        guard let viewController = manager.viewController else {
            print("Cannot get root view controller.")
            invoke.reject("Cannot get root view controller.")
            return
        }

        // Resolve immediately before presenting
        invoke.resolve(["value": "Popover presenting with value: \(args.value ?? "default")"])

        // Present on main thread
        DispatchQueue.main.async {
            // Create a new view controller for the popover
            let popoverVC = UIViewController()
            popoverVC.view.backgroundColor = .systemBackground

            // Add a label to show the ping value
            let label = UILabel()
            label.text = "Ping: \(args.value ?? "default")"
            label.textAlignment = .center
            label.translatesAutoresizingMaskIntoConstraints = false
            popoverVC.view.addSubview(label)

            NSLayoutConstraint.activate([
                label.centerXAnchor.constraint(equalTo: popoverVC.view.centerXAnchor),
                label.centerYAnchor.constraint(equalTo: popoverVC.view.centerYAnchor),
                label.leadingAnchor.constraint(equalTo: popoverVC.view.leadingAnchor, constant: 20),
                label.trailingAnchor.constraint(
                    equalTo: popoverVC.view.trailingAnchor, constant: -20),
            ])

            // Configure popover presentation
            popoverVC.modalPresentationStyle = .popover
            popoverVC.preferredContentSize = CGSize(width: 300, height: 200)

            if let popover = popoverVC.popoverPresentationController {
                popover.sourceView = viewController.view
                popover.sourceRect = CGRect(
                    x: viewController.view.bounds.midX,
                    y: viewController.view.bounds.midY,
                    width: 0,
                    height: 0)
                popover.permittedArrowDirections = [.up, .down]
            }

            // Present the popover
            viewController.present(popoverVC, animated: true)
        }
    }

Plugin.