是否有一个触发UIImagePickerController拍照的功能？

import UIKit

class ViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {

    override func viewDidLoad() {
        super.viewDidLoad()

        // 创建 UIImagePickerController 实例
        let imagePickerController = UIImagePickerController()

        // 设置代理
        imagePickerController.delegate = self

        // 设置来源类型
        imagePickerController.sourceType = .camera

        // 呈现 UIImagePickerController
        present(imagePickerController, animated: true, completion: nil)
    }

    // 实现 UIImagePickerControllerDelegate 协议的方法
    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
        // 获取选择的照片
        if let image = info[.originalImage] as? UIImage {
            // 在这里处理选择的照片
        }

        // 关闭 UIImagePickerController
        picker.dismiss(animated: true, completion: nil)
    }

    // 实现 UINavigationControllerDelegate 协议的方法
    func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
        // 关闭 UIImagePickerController
        picker.dismiss(animated: true, completion: nil)
    }
}