SwiftUI view for adding accessibility previews. Proof of concept.

AccessibilityPreview.swift

import SwiftUI
import UIKit

// from https://github.com/cashapp/AccessibilitySnapshot
import AccessibilitySnapshotCore

struct AccessibilityPreview<Content: View>: View {
    let content: Content
    
    var body: some View {
        AccessibilityPreviewRepresentable(content: content)
            .previewLayout(.fixed(
                width: UIScreen.main.bounds.width * 2,
                height: UIScreen.main.bounds.height
            ))
            .previewDisplayName("VoiceOver Representation")
    }
}

private struct AccessibilityPreviewRepresentable<Content: View>: UIViewRepresentable {
    let content: Content
    
    func makeUIView(context: Context) -> some UIView {
        let view = UIHostingController(rootView: content)
        view.view.frame = UIScreen.main.bounds
        
        let snapshotView = AccessibilitySnapshotView(
            containedView: view.view,
            viewRenderingMode: .drawHierarchyInRect,
            activationPointDisplayMode: .whenOverridden
        )
        
        // who needs error management 'eh?
        try! snapshotView.parseAccessibility(useMonochromeSnapshot: false)
        
        return snapshotView
    }
    
    func updateUIView(_ uiView: UIViewType, context: Context) {}
}