Multiple Image Pickers in one Controller

Question

I\'m working on an onboarding flow for my app. I\'m wanting to allow users to pick an avatar, display that avatar in an image view, and then select a background photo and displa

Answer 1

The delegate function imagePickerController(picker: UIImagePickerController, didFinishPickingImage image: UIImage, editingInfo: [String : AnyObject]?) also returns the UIImagePickerController that finished picking an image.

So you can use an if statement to check if the picker that finished is pickerOne or pickerTwo. Then you implement different behaviour according to the result of that.

Maybe set the pickers to nil after they have finished to clean up some memory.

class multiPickerVC : UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {


    var pickerOne : UIImagePickerController?
    var pickerTwo : UIImagePickerController?


    override func viewDidLoad() {
        //
    }


    @IBAction func getBackground(sender: AnyObject) {
        pickerTwo = UIImagePickerController()
        pickerTwo!.delegate = self
        pickerTwo!.sourceType = UIImagePickerControllerSourceType.PhotoLibrary
        pickerTwo!.allowsEditing = true
        self.presentViewController(pickerTwo!, animated: true, completion: nil)
    }

    @IBAction func selectAvatar(sender: AnyObject) {
        pickerOne = UIImagePickerController()
        pickerOne!.delegate = self
        pickerOne!.sourceType = UIImagePickerControllerSourceType.PhotoLibrary
        pickerOne!.allowsEditing = true
        self.presentViewController(pickerOne!, animated: true, completion: nil)
    }


    func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image: UIImage, editingInfo: [String : AnyObject]?) {

        if picker == pickerOne {

            // set image for button
            let image = info[UIImagePickerControllerOriginalImage] as? UIImage
            self.addAvatar.setImage(image, forState: .Normal)

        } else if picker == pickerTwo {

            // set image for button
            let image = info[UIImagePickerControllerOriginalImage] as? UIImage

            self.headerImage.image = image
        }

        self.dismissViewControllerAnimated(true, completion: nil)

    }
}