Swift: CoreData load my image (portrait) at 90 degrees - swift

Question

When I save, my image to coreData, when I re-open it from CoreData, all image who was took in portrait, are in landscape orientation.
I fund lot of previews question a bout it but all in Objective C not in Swift.
How can I fix the problem?
This is my code: ( it is also a text application when it work I will add it to my project)
This text app has two image view one for loading from library and one for loading from coreData.
class ViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate{
var monimage: String!
let imagePicker = UIImagePickerController()
#IBOutlet weak var MaPhoto: UIImageView? = UIImageView()
#IBOutlet weak var maPhoto2: UIImageView! = UIImageView()
var cameraUI:UIImagePickerController = UIImagePickerController()
var yourContacts:NSMutableArray = NSMutableArray()
override func viewDidLoad() {
imagePicker.delegate = self
super.viewDidLoad()
}
#IBAction func LabraryImage(sender: AnyObject) {
imagePicker.delegate = self
imagePicker.sourceType = .PhotoLibrary
imagePicker.allowsEditing = true
presentViewController(imagePicker, animated: true, completion: nil)
}
func imagePickerControllerDidCancel(picker: UIImagePickerController) {
dismissViewControllerAnimated(true, completion: nil)
}
#IBAction func takePhoto(sender: UIButton) {
if (UIImagePickerController.isSourceTypeAvailable(.Camera)){
cameraUI = UIImagePickerController()
cameraUI.delegate = self
cameraUI.sourceType = UIImagePickerControllerSourceType.Camera
cameraUI.allowsEditing = true
self.presentViewController(cameraUI, animated: true, completion: nil)
}else{
//no camera available
let alert = UIAlertController(title: "Error", message: "There is no camera available", preferredStyle: .Alert)
alert.addAction(UIAlertAction(title: "Okay", style: .Default, handler: {(alertAction)in
alert.dismissViewControllerAnimated (true, completion: nil)
}))
}
}
func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [NSObject : AnyObject]) {
if let pickedImage = info[UIImagePickerControllerOriginalImage] as? UIImage {
MaPhoto!.contentMode = .ScaleAspectFit
MaPhoto!.image = pickedImage
}
dismissViewControllerAnimated(true, completion: nil)
}
#IBAction func btnSavePressed(sender : AnyObject) {
let appDel:AppDelegate = UIApplication.sharedApplication().delegate as! AppDelegate
let context:NSManagedObjectContext = appDel.managedObjectContext!
let ent = NSEntityDescription.entityForName("ImageData", inManagedObjectContext: context)
var newUser = ImageData (entity: ent!, insertIntoManagedObjectContext: context)
let contactImageData:NSData = UIImagePNGRepresentation(MaPhoto!.image)
newUser.monimage = contactImageData
context.save(nil)
self.navigationController?.popViewControllerAnimated(true)
}
#IBAction func loadImage(sender: AnyObject){
let appDel:AppDelegate = UIApplication.sharedApplication().delegate as! AppDelegate
let context:NSManagedObjectContext = appDel.managedObjectContext!
let request2 = NSFetchRequest (entityName: "ImageData")
request2.returnsObjectsAsFaults = false;
var results2:NSArray = context.executeFetchRequest(request2, error: nil)!
if results2.count > 0 {
for user in results2{
var thisUser2 = user as! ImageData
let profileImage:UIImage = UIImage(data: thisUser2.monimage)!
maPhoto2.image = profileImage
}
}
}
I also working to get the image square so it is for that "allowEditing is = true"

Answer 1

Thank s for your help!
this is the answer to my question:
#IBAction func btnSavePressed(sender : AnyObject) {
let appDelegate = UIApplication.sharedApplication().delegate as! AppDelegate
let managedContext = appDelegate.managedObjectContext!
let entity = NSEntityDescription.entityForName("ImageData",
inManagedObjectContext: managedContext)
let options = NSManagedObject(entity: entity!,
insertIntoManagedObjectContext:managedContext)
var newImageData = UIImageJPEGRepresentation(MaPhoto!.image,1)
options.setValue(newImageData, forKey: "monimage")
var error: NSError?
managedContext.save(&error)
}

Answer 2

JPGs are great for photos. However, saving in jpeg might loose some quality which png tends to excel as it has a lossless compression format.
Its just a matter of preference and what you need at the moment. If you don't want to convert to jpg you can call this method then convert to pngData to preserve orientation before saving to coreData. :)
func rotatedCopy() -> UIImage {
if self.imageOrientation == UIImage.Orientation.up {
return self
}
UIGraphicsBeginImageContext(size)
//draws the image in current context respecting orientation
draw(in: CGRect(origin: CGPoint.zero, size: size))
let copy = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return copy!
}