如何将imageView作为源代码传递给QuickLook预览版

import QuickLook

func previewImage(imageView: UIImageView) {
    guard let image = imageView.image else {
        print("ImageView does not have an image.")
        return
    }
    
    guard let imageData = image.jpegData(compressionQuality: 1.0) else {
        print("Failed to convert image data.")
        return
    }
    
    let fileManager = FileManager.default
    let temporaryDirectory = NSTemporaryDirectory()
    let filePath = temporaryDirectory.appending("previewImage.jpg")
    
    if fileManager.createFile(atPath: filePath, contents: imageData, attributes: nil) {
        let previewItem = PreviewItem(filePath: filePath)
        let previewController = QLPreviewController()
        previewController.dataSource = previewItem
        // Present the QuickLook preview controller
        // 在此处展示QuickLook预览版控制器
    } else {
        print("Failed to save image file.")
    }
}

class PreviewItem: NSObject, QLPreviewControllerDataSource {
    let filePath: String
    
    init(filePath: String) {
        self.filePath = filePath
    }
    
    func numberOfPreviewItems(in controller: QLPreviewController) -> Int {
        return 1
    }
    
    func previewController(_ controller: QLPreviewController, previewItemAt index: Int) -> QLPreviewItem {
        return URL(fileURLWithPath: filePath) as QLPreviewItem
    }
}