How to accomplish a long-pressable button in SwiftUI with two different techniques. The first just uses SwiftUI but due to the simultaneous gesture requirement you also have to ensure both don't fire concurrently. The second uses UIKit and wraps UIButton and UILongPressGestureRecognizer which natively handles this behavior.

LongPressButton.swift

import SwiftUI

// PURE SwiftUI way with State tracking to prevent double events

struct ContentView: View {
    @State private var ignoreTapEvent = false
    
    var body: some View {
        Button {
            guard !ignoreTapEvent else {
                ignoreTapEvent = false
                return
            }
            
            print("Tapped")
        } label: {
            Text("Tap me!")
        }
        .simultaneousGesture(LongPressGesture(minimumDuration: 1.0)
            .onEnded { didEnd in
                ignoreTapEvent = true
                print("Long pressed!")
            }
        )
    }
}

// UIKit-assisted way by wrapping UIButton and using UILongPressGestureRecognizer to have system properly handle concurrent button gestures

struct ContentView: View {
    var body: some View {
        LongPressButton(useCircularShape: true, systemIconName: "list.bullet.clipboard.fill") {
            print("Tap")
        } onLongPress: {
            print("Long press")
        }
    }
}

struct LongPressButton: View {
    let useCircularShape: Bool
    let systemIconName: String
    let onTap: () -> Void
    let onLongPress: () -> Void
    
    var body: some View {
        _LongPressButton(useCircularShape: useCircularShape, systemIconName: systemIconName, onTap: onTap, onLongPress: onLongPress)
            .fixedSize()
    }
}

struct _LongPressButton: UIViewRepresentable {
    let useCircularShape: Bool
    let systemIconName: String
    let onTap: () -> Void
    let onLongPress: () -> Void
    
    func makeUIView(context: Context) -> some UIView {
        var config = UIButton.Configuration.borderless()
        config.image = UIImage(systemName: systemIconName)
        config.cornerStyle = useCircularShape ? .capsule : UIButton.Configuration.borderless().cornerStyle
        
        let button = UIButton(configuration: config, primaryAction: .init() { action in
            onTap()
        })
        
        let longPressGestureRecognizer = UILongPressGestureRecognizer(target: context.coordinator, action: #selector(Coordinator.longPressed(gestureRecognizer:)))
        button.addGestureRecognizer(longPressGestureRecognizer)
        
        return button
    }
    
    func updateUIView(_ uiView: UIViewType, context: Context) {}
    
    func makeCoordinator() -> Coordinator {
        Coordinator(button: self)
    }
    
    class Coordinator: NSObject, UIGestureRecognizerDelegate {
        let button: _LongPressButton
        
        init(button: _LongPressButton) {
            self.button = button
        }
        
        @objc func longPressed(gestureRecognizer: UILongPressGestureRecognizer) {
            guard gestureRecognizer.state == .began else { return }
            button.onLongPress()
        }
    }
}

kewl 👍