在UIAlertController中居中对齐图像操作

// 创建UIAlertController实例
let alertController = UIAlertController(title: nil, message: nil, preferredStyle: .alert)

// 创建UIAlertAction实例
let action = UIAlertAction(title: "OK", style: .default, handler: nil)

// 创建UIImageView实例
let imageView = UIImageView(image: UIImage(named: "image"))
imageView.sizeToFit()

// 将UIImageView实例设置为UIAlertAction的accessoryView属性
action.setValue(imageView, forKey: "accessoryView")

// 将UIAlertAction实例添加到UIAlertController实例中
alertController.addAction(action)

// 显示UIAlertController
present(alertController, animated: true, completion: nil)