使用未聲明的類型WKActionSheet

Question

我正在使用WebKit和WKWebView，並且我試圖截取長按鏈接後顯示的WKActionSheet。

在我的根視圖控制器，我實現了present(_ viewControllerToPresent: UIViewController, animated flag: Bool, completion: (() -> Void)? = nil)：

override func present(_ viewControllerToPresent: UIViewController, animated flag: Bool, completion: (() -> Void)? = nil) { 

    print("View controller to present: \(viewControllerToPresent)") 

    super.present(viewControllerToPresent, animated: flag, completion: completion) 
} 

當我長按一個鏈接，我可以看到相關的日誌中我的控制檯：

View controller to present: <WKActionSheet: 0x13616b200>

但如果我試圖檢查是否或viewControllerToPresent是WKActionSheet，然後我得到這個錯誤信息：

Use of undeclared type WKActionSheet

所以我猜...這WKActionSheet屬於一個私人API？沒有辦法訪問該課程？

我怎麼能確定是否viewControllerToPresent是一個WKActionSheet以乾淨的方式？現在，我使用viewControllerToPresent.description，並檢查它是否包含字符串「WKActionSheet」;沒關係，但很骯髒......

Answer 1

如果有人有興趣，這裏是我現在的解決方法。

override func present(_ viewControllerToPresent: UIViewController, animated flag: Bool, completion: (() -> Void)? = nil) 
{ 
    guard let alertController = viewControllerToPresent as? UIAlertController, 
     alertController.preferredStyle == .actionSheet, alertController.description.contains("WKActionSheet") 
     else { 
      super.present(viewControllerToPresent, animated: flag, completion: completion) 
      return 
    } 

    guard let longPressedLink = alertController.title 
     else {return} 

    // Here I call a custom method to create my own UIAlertController 
    let customAlertController = getCustomAlertControllerFromLink(link: longPressedLink) 
    super.present(customAlertController, animated: flag, completion: completion) 
}