ios - 在 dynamicLinks.handleUniversalLink(url) 的回调中接收 nil

Question

我正在努力接收 Firebase 动态链接。在 App 委托(delegate)的 restoreHandler 方法中，我调用了 Firebase DynamicLinks 的 DynamicLinks.dynamicLinks().handleUniversalLink(url) 方法来从短链接获取实际链接。
但是在此方法的回调中，我在动态链接中收到 nil。因此，我无法从回调中收到的动态链接获取 url。谁能帮我弄清楚为什么它返回零。

func application(_ application: UIApplication, continue userActivity: NSUserActivity,
                     restorationHandler: @escaping ([UIUserActivityRestoring]?) -> Void) -> Bool {

        if let incomingURL = userActivity.webpageURL {
// it prints the passed url and working fine
            debugPrint("Imcoing Url is: \(incomingURL.absoluteString)")

            let linkHandled = DynamicLinks.dynamicLinks().handleUniversalLink(incomingURL) { (dynamicLink, error) in

                guard error == nil else {
                    debugPrint("Error Found: \(error!.localizedDescription)")
                    return
                }
//
//
                if let dynamiclink = dynamicLink, let _ = dynamiclink.url {
// but below function call is not called beacause dynamicLink coming in
// callback is nil
                    self.handleIncomingDynamicLink(dynamiclink)
                }
            }
            if linkHandled {
                return true
            } else {
                // do other stuff to incoming URL?
                return false
            }
        }

        return false
    }

Answer 1

我找到了方法Expand a short URL in Swift获取短 url 中的实际 url 或查询参数，在我的情况下是 nil，因为我收到了 dynamiclink在完成处理程序中

DynamicLinks.dynamicLinks().handleUniversalLink(incomingURL) { (dynamicLink, error) in 
    //Both dynamicLink and error were nil here in my case 
}

零。这些代码行将执行相同的操作，以便从短 URL 获取实际 url 或查询参数。

URLSession.shared.dataTask(with: incomingURL) { (data, response, error) in

            if let actualURL = response?.url {

                // you will get actual URL from short link here

                // e.g short url was  
                // https://sampleuniversallink.page.link/hcabcx2fdkfF5U

                // e.g actual url will be  
                // https://www.example.com/somePage?quertItemkey=quertItemvalue...
            }
        }.resume()