UIDocumentInteractionController() swift - ios

Question

I created a file and I want to share it via UIDocumentInteractionController.
I am unsure on how to obtain the URL from the documentsPath and destination path where I saved my file
let someText = NSString(string: "Test")
let documentsPath = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0] as String
let destinationPath = documentsPath.stringByAppendingPathComponent("Data.txt")
var error:NSError?
let written = someText.writeToFile(destinationPath,
atomically: true,
encoding: NSUTF8StringEncoding,
error: &error)
if written{
println("Successfully stored the file at path \(destinationPath)")
let dic = UIDocumentInteractionController()
self.dic.URL = url
let v = sender as UIView
let ok = self.dic.presentOpenInMenuFromRect(
v.bounds, inView: v, animated: true)

Answer 1

Revise your code to the following
import UIKit
class ViewController: UIViewController {
var docController:UIDocumentInteractionController!
override func viewDidLoad() {
let someText = NSString(string: "Test")
if let documentsPath = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0] as? String {
let destinationPath = documentsPath.stringByAppendingPathComponent("Data.txt")
var error:NSError?
let written = someText.writeToFile(destinationPath,
atomically: true,
encoding: NSUTF8StringEncoding,
error: &error)
if written{
println("Successfully stored the file at path \(destinationPath)")
}
if let url = NSURL(fileURLWithPath: destinationPath) {
docController = UIDocumentInteractionController(URL: url)
}
}
}
#IBAction func sendFile(sender:AnyObject) {
docController.presentOptionsMenuFromRect(sender.frame, inView:self.view, animated:true)
}
}
Now wire up the IBAction to a button in the storyboard. Next:
click on the blue project icon in the left sidebar and then select
Info from the horizontal menu.
expand Document Types and enter "txt" in the Name field and
"public.data, public.content" in the Types field
now expand Exported UTIs and enter "txt" in the Description
field, "kUTTypeText" in the Identifier field and
"public.data, public.content" in the Conforms to field
So that everything looks like this:
You can now build and run the app to test.