Create folders in UITableView from saved images - ios

Question

I have an iOS Xcode 7 project written in Swift2. I'm saving photos to the app using NSCoding:
class UserImages: NSObject, NSCoding {
// MARK: Properties
var name: String
var photo: NSData // UIImage
...
}
These images currently are shown in a UITableView:
class ImagesTableViewController: UIViewController, UITableViewDelegate {
// MARK: Properties
var photos = [UserImages]()
...
// MARK: TableView Details
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return photos.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cellIdentifier = "ImageTableViewCell"
let cell = tableView.dequeueReusableCellWithIdentifier(cellIdentifier, forIndexPath: indexPath) as! ImageTableViewCell
let photo = photos[indexPath.row]
var image: NSData = photo.photo as NSData
cell.nameLabel.text = photo.name
cell.photoImageView.image = UIImage(data: image)
return cell
}
}
Works great, and in my custom cell, I have a UILabel and UIImageView for the name and photo.
My question is, how can I allow the user to create folders within the UITableView and allow the photos to be moved/organized in the folders? I'd like to try and keep the NSCoding unless it's impossible to implement folders and still use NSCoding. Thank you.

Answer 1

I ended up not using NSCoding and instead saving everything with CoreData. I setup an Entity called Photos and gave it attributes of:
name // Set as String
imageData // Set as Binary Data
folder // Set as String
The user then can add a new image and set the name of the photo and folder they want to put it in using UITextFields.
I then setup a FolderTableViewController displaying the folders from a request and in the didSelectRowAtIndexPath captured the image name from the selected cell and transferred it to a new ViewController which has a UITableView and displays the images from FolderTableViewController performing a request.predicate.
Works well for what I needed it to do. May not be the most glamorous but it made sense and did what I needed it to.