https://zenn.dev/harumaru/articles/6f7ec2659261f6 の記事の LivePhotoView を Swift Playgrounds で表示するサンプルコード

main.swift

import PhotosUI
import PlaygroundSupport
import SwiftUI

struct LivePhotoView: View {
    let livePhoto: PHLivePhoto
    
    var body: some View {
        _LivePhotoView(livePhoto: livePhoto)
            .aspectRatio(
                livePhoto.size.width / livePhoto.size.height,
                contentMode: .fill
            )
    }
}

fileprivate struct _LivePhotoView: UIViewRepresentable {
    let livePhoto: PHLivePhoto
    
    func makeUIView(context: Context) -> PHLivePhotoView {
        let livePhotoView = PHLivePhotoView(frame: .zero)
        livePhotoView.livePhoto = livePhoto
        return livePhotoView
    }
    
    func updateUIView(_ livePhotoView: PHLivePhotoView, context: Context) {
    }
}

struct PhotoPicker {
    let configuration: PHPickerConfiguration
    @Binding var pickerResult: [PHLivePhoto]
    @Binding var isPresented: Bool
}

extension PhotoPicker: UIViewControllerRepresentable {
    func makeUIViewController(context: Context) -> PHPickerViewController {
        let controller = PHPickerViewController(configuration: configuration)
        controller.delegate = context.coordinator 
        return controller
    }
    
    func updateUIViewController(_ uiViewController: PHPickerViewController, context: Context) { }
    
    func makeCoordinator() -> Coordinator {
        Coordinator(
            pickerResult: self.$pickerResult,
            isPresented: self.$isPresented
        )
    }
}

class Coordinator: PHPickerViewControllerDelegate {
    @Binding var pickerResult: [PHLivePhoto]
    @Binding var isPresented: Bool
    
    init(
        pickerResult: Binding<[PHLivePhoto]>,
        isPresented: Binding<Bool>
    ) {
        self._pickerResult = pickerResult
        self._isPresented = isPresented
    }
    
    func picker(_ picker: PHPickerViewController, didFinishPicking results: [PHPickerResult]) {
        for image in results {
            if image.itemProvider.canLoadObject(ofClass: PHLivePhoto.self) {
                image.itemProvider.loadObject(ofClass: PHLivePhoto.self) { newImage, error in
                    if let error = error {
                        print(error.localizedDescription)
                    } else {
                        self.pickerResult.append(newImage as! PHLivePhoto)
                    }
                }
            } else {
                print("Loaded Assest is not a Image")
            }
        }
        
        // dissmiss the picker
        self.isPresented = false
    }
}

struct ContentView {
    @State var isPresented = false
    @State var pickerResult = [PHLivePhoto]()
    
    var config: PHPickerConfiguration {
        var config = PHPickerConfiguration(photoLibrary: .shared())
        config.filter = .livePhotos
        config.selectionLimit = 1
        return config
    }
}

extension ContentView: View {
    var body: some View {
        VStack {
            if let livePhoto = self.pickerResult.first {
                // どちらも潰れてない
                LivePhotoView(livePhoto: livePhoto)
                _LivePhotoView(livePhoto: livePhoto)
            }
            Button("Select Photo") {
                self.isPresented = true
            }
            .sheet(isPresented: self.$isPresented) {
                PhotoPicker(
                    configuration: self.config,
                    pickerResult: self.$pickerResult,
                    isPresented: self.$isPresented
                )
            }
        }
    }
}

PlaygroundPage.current.setLiveView(ContentView())