import UIKit ///文件下载 class VehicleDownloadFilemanager: NSObject, UIDocumentPickerDelegate { /// 创建单例对象 static let share = VehicleDownloadFilemanager() private override init() {} func downloadFile(fileUrl:String?) { guard let urlStr = fileUrl, let taskUrl = URL(string: urlStr) else { return } debugPrint("文件下载url:\(taskUrl)") let request = URLRequest(url: taskUrl) let session = URLSession(configuration: .default) session.downloadTask(with: request) { [weak self] tempUrl, response, error in guard let self = self, let tempUrl = tempUrl, error == nil else { debugPrint("文件下载失败") UIApplication.shared.topViewController?.view.showErrInfo(at: "文件下载失败") return } debugPrint("文件下载完成\(tempUrl)") // 下载完成之后会自动删除temp中的文件,把文件移动到document中。 let documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0] debugPrint("文件下载完成 documentsDirectory \(documentsDirectory)") // 建议使用的文件名,一般跟服务器端的文件名一致 let destinationPath = documentsDirectory.appendingPathComponent(response?.suggestedFilename ?? "") // 如果存在同名的 if FileManager.default.fileExists(atPath: destinationPath.path) { do { try FileManager.default.removeItem(atPath: destinationPath.path) } catch _ { } } debugPrint("文件下载 document下的可保存的url:\(destinationPath)") do { // 文件移动至document try FileManager.default.copyItem(atPath: tempUrl.path, toPath: destinationPath.path) // main DispatchQueue.main.async { self.saveFileToPhone(url: destinationPath) } } catch let error { debugPrint(error) // SWToast.showText(message: "\(error.localizedDescription)") UIApplication.shared.topViewController?.view.showErrInfo(at: "\(error.localizedDescription)") } }.resume() } func saveFileToPhone(url: URL) { let picker = UIDocumentPickerViewController(url: url, in: .exportToService) picker.delegate = self picker.modalPresentationStyle = .formSheet UIApplication.shared.topViewController?.present(picker, animated: true) } func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) { // 保存成功 // SWToast.showText(message: "保存成功") UIApplication.shared.topViewController?.view.showSuccessInfo(at:"保存成功") } func documentPickerWasCancelled(_ controller: UIDocumentPickerViewController) { // SWToast.showText(message: "PickerWasCancelled") } }
标签:文件,存储,url,debugPrint,destinationPath,let,icloud,error,swift From: https://www.cnblogs.com/qingzZ/p/17934716.html