“Creating an image format with an unknown type is an error” with UIImagePickerController

Question

While choosing an image from the image picker in iOS 10 Swift 3 I am getting an error - Creating an image format with an unknown type is an error

Answer 1

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
    if let image = info[UIImagePickerControllerOriginalImage] as? UIImage {
        imgViewPhoto.image = image
    } else{
        print("Something went wrong")
    }

    picker.dismiss(animated: true, completion: nil)

}

Answer 2

// image picker with collection view class ViewController: UIViewController,UIImagePickerControllerDelegate,UINavigationControllerDelegate,UICollectionViewDataSource,UICollectionViewDelegate {

@IBOutlet var img: UIImageView!

@IBOutlet weak var collview: UICollectionView!

var image = NSMutableArray()


let imgpkr = UIImagePickerController()

override func viewDidLoad() {
    super.viewDidLoad()

    imgpkr.delegate = self
}




@IBAction func btnselect(_ sender: UIButton) {


    imgpkr.allowsEditing = true // false
    imgpkr.sourceType = .photoLibrary
    imgpkr.mediaTypes = UIImagePickerController.availableMediaTypes(for: .photoLibrary)!
    present(imgpkr, animated: true, completion: nil)

}


func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {

    let choose = info[UIImagePickerControllerOriginalImage]as!UIImage
    let edit = info[UIImagePickerControllerEditedImage]as!UIImage

    img.contentMode = .scaleAspectFit
    img.image = edit

    //MARK:- Add image in collview

    image.add(edit)
    collview.reloadData()

    dismiss(animated: true, completion: nil)

}

func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {

    dismiss(animated: true, completion: nil)
}

//MARK:- Collection View


func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {

    return image.count

}

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {

    let cell = collview.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath)as! CollectionViewCell1

    cell.img1.image = image.object(at: indexPath.item)as! UIImage

    return cell



}

Answer 3

try below

    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
    print("image selected");
    let selectedImage = info[UIImagePickerControllerOriginalImage] as! UIImag
    self.dismiss(animated: true, completion: nil)
   UIImg.image = selectedImage
}

Answer 4

For me I was getting the error:

"fatal error: unexpectedly found nil..."

when you select imagein imagepicker.

To get around the problem, I created the outlet for the imageView again.

Answer 5

What I did was that once I got the image from didFinishPickingMediaWithInfo, I called:

func prepareImageForSaving(image:UIImage) {
    // create NSData from UIImage
    guard let imageData = UIImageJPEGRepresentation(image, 1) else {
        // handle failed conversion
        print("jpg error")
        return
    }

    self.saveImage(imageData: imageData as NSData)
}

func saveImage(imageData: NSData) {
    imageDatas = imageData
}

to save it in NSData format.

The console still warned me on "[Generic] Creating an image format with an unknown type is an error" but at least my imageView gets updated to the selected image rather than showing the previous one from viewDidLoad.

Answer 6

Remember to add delegate to self

let picker = UIImagePickerController()
picker.delegate = self // delegate added