ios - 如何在 UIView 中呈现 SFSafariViewController

Question

我有一个具有按钮属性的自定义 UIView，我想向它添加一个操作以在应用程序中打开 webview。为此，我想使用 SFSafariViewController。以下是我正在努力实现这一目标的方法。

import UIKit
import SafariServices

class CustomViewScreen: UIView, SFSafariViewControllerDelegate {

@IBAction func privacyNoteBtnAction(_ sender: UIButton) {
    if #available(iOS 9.0, *) {
        let urlString = "https://stackoverflow.com/"
        if let url = URL(string: urlString) {
            let vc = SFSafariViewController(url: url, entersReaderIfAvailable: true)
            vc.delegate = self
           UIApplication.shared.keyWindow?.rootViewController?.present(vc, animated: true, completion: nil)
        }
    } else {
        // Fallback on earlier versions
    }
}

func safariViewControllerDidFinish(_ controller: SFSafariViewController) { 
  controller .dismiss(animated: true, completion: nil) // also not able to trigger this method when i tap "Done"
}

我什至无法正确使用这种方式，因为我得到“谁的 View 不在窗口层次结构中!”此外，我无法在点击“完成”按钮后调用 SFSafariViewControllerDelegate 方法来关闭 View 。当我在 UIView 中时有什么想法可以给出 Action ，或者有什么想法可以将此 Action 连接到我的主 Controller 以使用正确呈现的方法吗？

Answer 1

这样做，

@IBAction func privacyNoteBtnAction(_ sender: UIButton) {
   if #available(iOS 9.0, *) {
    let urlString = "https://stackoverflow.com/"
    if let url = URL(string: urlString) {
        let vc = SFSafariViewController(url: url, entersReaderIfAvailable: true)
        vc.delegate = self

       if var topController = UIApplication.shared.keyWindow?.rootViewController {
          while let presentedViewController = topController.presentedViewController {
              topController = presentedViewController
          }

          topController.present(vc, animated: true, completion: nil)
       }

    }
} else {
    // Fallback on earlier versions
}
}