Why cant I set the delegate to self? I'm running the code below in the viewcontroller.swift file, but I want to call it in a Render.swift file. I've got a metal scene running of the camera view and want to open the file picker in front of it, but it doesn't seem to be very simple.
@IBAction func importFiles(_ sender: Any) {
let documentPicker = UIDocumentPickerViewController(documentTypes: [kUTTypePlainText as String], in: .import)
documentPicker.delegate = self
documentPicker.allowsMultipleSelection = false
present(documentPicker, animated: true, completion: nil)
}
It says Cannot assign value of type 'ViewController' to type 'UIDocumentPickerDelegate
In my Renders.swift file I have a function tied to a button that calls the following:
//open dialog for picker...
let myVC: ViewController = ViewController()
myVC.importFiles()
I'm pretty new to this all.
Why cant I set the delegate to self?
Because the delegate needs to be a UIDocumentPickerDelegate, and self is not a UIDocumentPickerDelegate. You need to declare that it is:
class ViewController : UIViewController, UIDocumentPickerDelegate {
That may precipitate other issues (and I expect it will), but at least you'll get past the point where you are now.