@MainActor final class ViewModel: ObservableObject { @Published var image: UIImage? func onDownloadPhoto(url: URL) { do { let data = try Data(contentsOf: url) image = UIImage.init(data: data) } catch { log.error("Fehler beim Herunterladen des Bildes: \(error)") } } } Button("Herunterladen") { onDownloadPhoto(url) }