Implement Document Picker in swift (iOS)

Question

I want to pick a file of any type(.pdf, .docs, .xlsx, .jpeg, .txt, .rtf, etc) functionality in my iOS app. On clicking on Upload button, I want my app to op

Answer 1

You can use UIDocumentPickerViewController to get the files from the Files apps or iCloud Drive.

1. Activate the Key-value storage and iCloud Documents from iCloud capability:

2. Import the following framework on the view controller you want to open the document picker:

   import MobileCoreServices
   

3. Implement the following method from UIDocumentPickerDelegate:

   func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
        // you get from the urls parameter the urls from the files selected
   }
   

4. Create an UIDocumentPickerViewController to display the File picker or iCloud Drive:

   let types: [String] = [kUTTypePDF as String]
   let documentPicker = UIDocumentPickerViewController(documentTypes: types, in: .import)
   documentPicker.delegate = self
   documentPicker.modalPresentationStyle = .formSheet
   self.present(documentPicker, animated: true, completion: nil)
   

   If you want the user can import more types of files to your app, you have to add more UTTypes to the types NSArray. To see all the types available, you can check the UTType Docs

When the document picker opens on iOS 11 and you try to select a file inside the Google Drive, it is possible the file is disable due a bug: http://www.openradar.me/24187873