Passing ImageData from One View Controller to Another

Question

Hello I have ran into this situation before. I have image data that I want to pass from one view controller to another and display that data in an image view. In viewdidload in the 2nd VC, the data is printed properly but when I try to insert that data into 2nd VC imageview, the imageview is blank. You can see from the output that the printing the image data returns nil.

import UIKit

class ImageSelectedViewController: UIViewController {

@IBOutlet weak var imageView: UIImageView!
var imageViewData = Data()

override func viewDidLoad() {
    super.viewDidLoad()
    print(imageViewData)
    imageView.image? = UIImage(data: imageViewData)!
    print(imageView.image?.pngData())
}

Console:

205,397 bytes

nil

Answer 1

You need

imageView.image = UIImage(data: imageViewData)!

as ? here imageView.image? can make the whole line not effective