in app-search/xcode/app-search/AsyncImage.swift [84:102]
func load() {
guard !isLoading else { return }
if let image = cache?[url] {
self.image = image
return
}
cancellable = URLSession.shared.dataTaskPublisher(for: url)
.map { UIImage(data: $0.data) }
.replaceError(with: nil)
.handleEvents(receiveSubscription: { [weak self] _ in self?.onStart() },
receiveOutput: { [weak self] in self?.cache($0) },
receiveCompletion: { [weak self] _ in self?.onFinish() },
receiveCancel: { [weak self] in self?.onFinish() })
.subscribe(on: Self.imageProcessingQueue)
.receive(on: DispatchQueue.main)
.sink { [weak self] in self?.image = $0 }
}