DropBox Chooser and documentsPicker for Swift developers 3.0

Question

While the Chooser implementations for iOS are present Here. It is however limited to Objective-C. Is it possible to create a chooser in swift manually?

(A dropBox chooser)

I am also unable to sufficiently call the documentspicker functions, where one can pull any document from any app the user may have installed.

Thank you in advance

Answer 1

⭐Solved

From your project's capabilites. First enable both the iCloud serivces and the key Sharing, now import MobileCoreServices in your class. Finally extended the following three classes inside your class.

UIDocumentMenuDelegate,UIDocumentPickerDelegate,UINavigationControllerDelegate

Now implement the following functions..

 public func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentAt url: URL) {
              let myURL = url as URL
              print("import result : /(myURL)")
    }


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


func documentPickerWasCancelled(_ controller: UIDocumentPickerViewController) {
            print("view was cancelled")
            dismiss(animated: true, completion: nil)
    }

How to call all of this? Add the following bit of code to your clickable function..

func clickFunction(){

let importMenu = UIDocumentMenuViewController(documentTypes: [String(kUTTypePDF)], in: .import)
            importMenu.delegate = self
            importMenu.modalPresentationStyle = .formSheet       
            self.present(importMenu, animated: true, completion: nil)
}

Click your button. The following menu will pop up ..

In the case of DropBox. Upon clicking on any item. You will be redirected to your app. And the Url will be printed.

Manipulate the documentTypes to your need. In my app, Users permitted to Pdf only. So, suit yourself.

kUTTypePDF

Also if you feel like customizing your own menu bar. Add the following code and customize your own function inside the handler

        importMenu.addOption(withTitle: "Create New Document", image: nil, order: .first, handler: { print("New Doc Requested") })

Enjoy it.