在SwiftUI & VoiceOver中抓到两根手指双击？

import SwiftUI

struct TwoFingerDoubleTapGestureRecognizer: View {
    @State private var isTwoFingerDoubleTapped = false

    var body: some View {
        GeometryReader { geometry in
            ZStack {
                // Your content here
            }
            .background(GeometryReader { proxy in
                Color.clear
                    .preference(key: TwoFingerTapPreferenceKey.self, value: isTwoFingerDoubleTapped)
                    .frame(width: proxy.size.width, height: proxy.size.height)
            })
            .onPreferenceChange(TwoFingerTapPreferenceKey.self) { value in
                isTwoFingerDoubleTapped = value
            }
        }
        .gesture(
            DragGesture(minimumDistance: 0, coordinateSpace: .global)
                .simultaneously(with: TapGesture(count: 2).onEnded { _ in
                    withAnimation {
                        self.isTwoFingerDoubleTapped = true
                    }
                })
                .onChanged { value in
                    self.isTwoFingerDoubleTapped = false
                }
        )
    }
}

struct TwoFingerTapPreferenceKey: PreferenceKey {
    static var defaultValue: Bool = false

    static func reduce(value: inout Bool, nextValue: () -> Bool) {
        value = value || nextValue()
    }
}