在Swift 4中使用UIActivityViewController共享pdf文件

Question

我正在使用UIActivityViewController共享PDF文件：

let pdfFilePath = URL(string: "https://www.tutorialspoint.com/swift/swift_tutorial.pdf")
let pdfData = NSData(contentsOf: pdfFilePath!)
let activityVC = UIActivityViewController(activityItems: [pdfData!], applicationActivities: nil)

present(activityVC, animated: true, completion: nil)

显示以下结果：

我想要显示的更多功能，例如“复制到书籍”和“添加到便笺”，如下所示：

Answer 1

如果您要共享服务器上的pdf文件，并且有一个URL。然后，您首先将该文件下载到设备中，然后将该文件共享给其他任何人。

如果您在代码中使用Alamofire，那么会有代码。

磁带1

import Alamofire

卷带2

在您的班级中添加此功能：-

func downloadPdf(downloadUrl : String, fileName: String, completionHandler:@escaping(String, Bool)->()){

        let destinationPath: DownloadRequest.DownloadFileDestination = { _, _ in
            let documentsURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0];
            let fileURL = documentsURL.appendingPathComponent("\(fileName).pdf")
            return (fileURL, [.removePreviousFile, .createIntermediateDirectories])
        }
        print(downloadUrl)
        Alamofire.download(downloadUrl, to: destinationPath)
            .downloadProgress { progress in

            }
            .responseData { response in
                print("response: \(response)")
                switch response.result{
                case .success:
                    if response.destinationURL != nil, let filePath = response.destinationURL?.absoluteString {
                        completionHandler(filePath, true)
                    }
                    break
                case .failure:
                    completionHandler("", false)
                    break
                }
        }
    }

卷带3

在共享按钮上添加此操作

@IBAction func btnShareAction(_ sender: UIButton) {

        let myURL = "http://www.demo.com/demo.pdf"  // change this with your URL
        self.downloadPdf(downloadUrl : myURL, fileName: "invoice") { (localFileUrl, bool) in

             let fileURL = NSURL(fileURLWithPath: localFileUrl)
            let activityViewController = UIActivityViewController(activityItems: [fileURL], applicationActivities: nil)
            self.present(activityViewController, animated: true, completion: nil)

          }
      }