How to get the source of the files from UIDocumentMenuViewController or UIDocumentPickerViewController?

Question

I have successfully implemented a feature letting the user pick a file to my app through UIDocumentMenuViewController and UIDocumentPickerViewController.

But I cannot find out how can I detect the source of the file. There are sources like Files, Google Drive and DropBox etc.

func documentMenu(_ documentMenu: UIDocumentMenuViewController, didPickDocumentPicker documentPicker: UIDocumentPickerViewController)
func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentAt url: URL)

I have gone through all the delegate functions and do not see any ways. Any help would be greatly appreciated.

score 0 · Answer 1 · edited May 31 '18 at 13:13

Hello Calvin,

Please add delegate UIDocumentMenuDelegate,UIDocumentPickerDelegate

    func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentAt url: URL) {
            let docurl = url as URL
            print("The Url is : \(docurl)")
            let urlRequest = NSURLRequest(url: docurl)
            do {
                let fileAttributes = try FileManager.default.attributesOfItem(atPath: url.path)
                    let theData = try NSURLConnection.sendSynchronousRequest(urlRequest as URLRequest, returning: nil)
                    let fileExtension = urlRequest.url?.lastPathComponent
                    var strFileNAME = ""
                    if (fileExtension?.contains("pdf"))! {
                        print("pdf")
                    } else {
                        print("doc")
                    } 
                    var docURL = (FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)).last as NSURL?
                    docURL = docURL?.appendingPathComponent("\(String(describing: fileExtension))") as NSURL?
                    try theData.write(to: docURL! as URL)
                    self.DocumentData = theData
                    print("downloaded")
                }
            } catch (let writeError) {
                print("error : \(writeError)")
            }
            let docURL = (FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).last)
            do {
                let contents = try (FileManager.default.contentsOfDirectory(at: docURL!, includingPropertiesForKeys: nil, options: FileManager.DirectoryEnumerationOptions.skipsHiddenFiles))
                print(contents)
            }
            catch (let error) {
                print("error contents \(error)")
            }
        }

        public func documentMenu(_ documentMenu: UIDocumentMenuViewController, didPickDocumentPicker documentPicker: UIDocumentPickerViewController) {
            documentPicker.delegate = self
            present(documentPicker, animated: true, completion: nil)
        }

        func documentPickerWasCancelled(_ controller: UIDocumentPickerViewController) {
            dismiss(animated: true, completion: nil)
        }

score 0 · Answer 2 · answered Jun 01 '18 at 06:26

0

This is not possible for privacy reasons. You should not be able to tell which cloud vendors users have installed.

Also, please do not use UIDocumentMenuViewController, which is deprecated.

answered Jun 01 '18 at 06:26

Thomas Deniau

2,488
1
15
15

How to get the source of the files from UIDocumentMenuViewController or UIDocumentPickerViewController?

2 Answers2