Cfrgtkky

I'm using UIDocumentPickerViewController to select a document from the iPhone.

I have implemented the feature in the following way.

class Si3EntityDocumentViewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout, UIDocumentInteractionControllerDelegate, UIDocumentPickerDelegate, UINavigationControllerDelegate, UIDocumentMenuDelegate {



    override func viewDidLoad() {

        super.viewDidLoad()

        setLoader()

        getDocuments(id:entity.id)

        let button = UIButton(frame: CGRect(x: 100, y: 100, width: 100, height: 50))

        button.backgroundColor = .red

        button.setTitle("Upload Doc", for: .normal)

        button.addTarget(self, action: #selector(buttonAction), for: .touchUpInside)

        self.view.addSubview(button)

        // Do any additional setup after loading the view.

    }



    @objc func buttonAction(sender: UIButton!){

        let documentPicker = UIDocumentPickerViewController(documentTypes: [String(kUTTypeText),String(kUTTypeContent),String(kUTTypeItem),String(kUTTypeData)], in: .import)

        documentPicker.delegate = self

        present(documentPicker, animated: true, completion: {

            documentPicker.delegate = self

        } )

    }



    func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {

        print(urls)

    }



}

The func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt url: URL) method has been deprecated in iOS 11 so i have replaced it with func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL])

For some reason, I'm not getting the callback in func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL])

I also have some other code in this class but I've not included it.
When I select a document or click cancel I get the following error in the console

[DocumentManager] The view service did terminate with error: Error
Domain=_UIViewServiceErrorDomain Code=1 "(null)"
UserInfo={Terminated=disconnect method}

I know I'm missing out something very silly, any help is appreciated.

Thanks in anticipation.

You can have a look at the Apple documentation for a better understanding.

The default behaviour of a UIDocumentPickerViewController is to pick one document and you would have to use:

func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentAt url: URL) {

}

If you are using the UIDocumentPickerViewController to pick multiple documents, then you will have to set the allowsMultipleSelection property to true and implement

func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {

}

Also, the following line would suffice.

present(documentPicker, animated: true)

I Used this Methods in swift 3

func openImportDocumentPicker() {

    let documentPicker = UIDocumentPickerViewController(documentTypes: ["public.item"], in: .import)

    documentPicker.delegate = self

    documentPicker.modalPresentationStyle = .formSheet

    self.present(documentPicker, animated: true, completion: { _ in })

}



func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentAt url: URL) {

    if controller.documentPickerMode == .import {

        let alertMessage: String = "Successfully imported (url.absoluteURL)"

   }

}



func documentPickerWasCancelled(_ controller: UIDocumentPickerViewController) {

    print("Cancelled")

}