ios - AppDelegate.swift 函数在转换为 swift 3 后返回错误(无法转换为 PFBooleanResultBlock？)？

Question

我最近将我的应用程序从以前版本的 swift 转换为 swift 3.0(并且还安装了最新版本的 Xcode)，除此之外，我还收到了以下错误:

func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
        let installation = PFInstallation.current()
        installation.setDeviceTokenFrom(deviceToken)
        installation.saveInBackground()

        PFPush.subscribeToChannel(inBackground: "") { (succeeded: Bool, error: NSError?) in
            if succeeded {
                print("ParseStarterProject successfully subscribed to push notifications on the broadcast channel.\n");
            } else {
                print("ParseStarterProject failed to subscribe to push notifications on the broadcast channel with error = %@.\n", error)
            }
        }
    }

这来 self 作为模板下载的 SDK(PF 指的是 Parse 框架......我正在使用由 Heroku 托管的 Parse-server)。返回错误说:“无法将类型 '(Bool,NSError?)-> ()' 的值转换为预期的参数类型 'PFBooleanResultBlock?'”

不知道如何解决这个问题。有人有什么想法吗？

Answer 1

我相信您可以这样更改代码:

    PFPush.subscribeToChannel(inBackground: "", block: {(succeeded, error) -> Void in
        if succeeded {
            print("ParseStarterProject successfully subscribed to push notifications on the broadcast channel.\n");
        } else {
            print("ParseStarterProject failed to subscribe to push notifications on the broadcast channel with error = %@.\n", error)
        }
    }