iOS Google登录错误

Question

我试图实施谷歌登录按钮，当我将以下行添加到我的AppDelegate.swift文件时，我收到此错误：

无法下标类型＆＃39; [String：AnyObject]＆＃39;索引类型为＆＃39; String＆＃39;

任何想法此代码有什么问题？顺便说一句，此代码只是从谷歌页面复制并粘贴： https://developers.google.com/identity/sign-in/ios/sign-in?configured&ver=swift

func application(application: UIApplication,
    openURL url: NSURL, options options: [String: AnyObject]) -> Bool {
        return GIDSignIn.sharedInstance().handleURL(url,
            sourceApplication: options[UIApplicationOpenURLOptionsSourceApplicationKey],
            annotation: options[UIApplicationOpenURLOptionsAnnotationKey])
}

由于

Answer 1

handleURL正在为sourceApplication和annotation查找“String”类型的参数，但是options提供了“AnyObject”。将这些字典值转换为“String”应该这样做。

试试这个：

更新：Swift 3

func application(_ application: UIApplication,
                 open url: URL, options: [UIApplicationOpenURLOptionsKey: Any]) -> Bool
   return GIDSignIn.sharedInstance().handle(url,
       sourceApplication: options[UIApplicationOpenURLOptionsKey.sourceApplication] as? String,
       annotation: options[UIApplicationOpenURLOptionsKey.annotation] as? String)
}

Swift 2

func application(application: UIApplication,
    openURL url: NSURL, options: [String: AnyObject]) -> Bool {
        return GIDSignIn.sharedInstance().handleURL(url,
            sourceApplication: options[UIApplicationOpenURLOptionsSourceApplicationKey] as? String,
            annotation: options[UIApplicationOpenURLOptionsAnnotationKey] as? String)
}

这也让我永远。希望有所帮助！

Answer 2

Xcode 8 Swift 3

func application(_ app: UIApplication, open url: URL, options: [UIApplicationOpenURLOptionsKey : Any] = [:]) -> Bool {
  return GIDSignIn.sharedInstance().handle(
  url,
  sourceApplication: options[UIApplicationOpenURLOptionsKey.sourceApplication] as! String,
  annotation: options[UIApplicationOpenURLOptionsKey.annotation])
}