Discover Quick Look for spatial computing

5:15 - drag support for quick look from apps

import Foundation
import SwiftUI
import UniformTypeIdentifiers

struct FileList: View {
    
    @State var files: [File]
    @State var previewedURL: URL? = nil
    @State var selectedFile: File? {
        didSet {
            self.previewedURL = selectedFile?.url
        }
    }
    
    var body: some View {
        List(files, selection: $selectedFile) { file in
            Button(file.name) {
                selectedFile = file
            }
            .onDrag {
                return NSItemProvider(contentsOf: file.url) ?? NSItemProvider()
            }
        }
    }
}

8:45 - swiftUI quick look preview function

import Foundation import SwiftUI
struct FileList: View {
  
@State var files: [File]
@State var previewedURL: URL? = nil
@State var selectedFile: File? {
	didSet {
		self.previewedURL = selectedFile?.url
		}
  }
  
var body: some View {
	List(files, selection: $selectedFile) { file in
			Button(file.name) {
				selectedFile = file
			}
		}
		.quickLookPreview($previewedURL, in: files.map { $0.url })
  	}
}