ios - 适用于 iOS 的 Google 登录 : error "Cannot subscript a value of type ' [String : AnyObject ]' with an index of type ' String'"

Question

对于 options[UIApplicationOpenURLOptionsSourceApplicationKey]，“无法使用 String 类型的索引为类型 [String, AnyObject] 的值下标”。 Swift 2、iOS 9.x、Google Sign in 使用 CocoaPods 安装。有什么提示吗？

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

Answer 1

功能 iOS 9.0 之前

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

或者使用您正在使用的方法，您可以像(iOS 9.0 之前及以上版本)一样使用它

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

或者同时支持 iOS 9 及更高版本 和 iOS 8.0 到 iOS 9.0

@available(iOS 9.0, *)
func application(_ application: UIApplication, open url: URL, options: [UIApplicationOpenURLOptionsKey : Any])
 -> Bool {
return GIDSignIn.sharedInstance().handleURL(url,
                        sourceApplication:options[UIApplicationOpenURLOptionsKey.sourceApplication] as? String,
                        annotation: [:])
}

//for iOS 8, check availability   
@available(iOS, introduced=8.0, deprecated=9.0)
func application(application: UIApplication,openURL url: NSURL, sourceApplication: String?, annotation: AnyObject) -> Bool {
    return GIDSignIn.sharedInstance().handleURL(url, sourceApplication: sourceApplication!, annotation: annotation)
}