将捕获的图像/图库图像从一个ViewController传递到另一个

import UIKit

class ViewControllerA: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
    
    let imagePicker = UIImagePickerController()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        imagePicker.delegate = self
    }
    
    // 捕获图像按钮的动作
    @IBAction func captureImage(_ sender: UIButton) {
        if UIImagePickerController.isSourceTypeAvailable(.camera) {
            imagePicker.sourceType = .camera
            present(imagePicker, animated: true, completion: nil)
        }
    }
    
    // 选择图库图像按钮的动作
    @IBAction func chooseImage(_ sender: UIButton) {
        imagePicker.sourceType = .photoLibrary
        present(imagePicker, animated: true, completion: nil)
    }
    
    // 图像捕获/选择完成后的回调方法
    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
        if let image = info[.originalImage] as? UIImage {
            dismiss(animated: true, completion: nil)
            
            // 将图像传递给ViewController B
            let viewControllerB = ViewControllerB()
            viewControllerB.image = image
            navigationController?.pushViewController(viewControllerB, animated: true)
        }
    }
    
    // 图像捕获/选择取消后的回调方法
    func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
        dismiss(animated: true, completion: nil)
    }
}

import UIKit

class ViewControllerB: UIViewController {
    
    var image: UIImage?
    @IBOutlet weak var imageView: UIImageView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        if let image = image {
            imageView.image = image
        }
    }
}