Ios Facebook和Google使用Swift登录

我在屏幕上有两个谷歌和Facebook的自定义登录按钮。下面是我在

AppDelegate

中编写的代码，它会导致问题，我将在代码之后解释

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



        return true
    }
     func application(application: UIApplication,
        openURL url: NSURL, options: [String: AnyObject]) -> Bool {
            if #available(iOS 9.0, *) {
                return GIDSignIn.sharedInstance().handleURL(url,
                    sourceApplication: options[UIApplicationOpenURLOptionsSourceApplicationKey] as? String,
                    annotation: options[UIApplicationOpenURLOptionsAnnotationKey])
            } else {
                // Fallback on earlier versions
            }

            return true
    }

如果我编写此代码，单击此处的“确定”按钮后：

屏幕没有关闭，而是停留在那里。但是如果我们点击“允许”按钮，谷歌屏幕就可以完美工作。但如果我只使用此代码：

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



            return true
        }

然后删除其他功能，Facebook的“OK”按钮就可以正常工作了。当我添加此功能时，Facebook为什么不工作

func application(application: UIApplication,
            openURL url: NSURL, options: [String: AnyObject]) -> Bool {
                if #available(iOS 9.0, *) {
                    return GIDSignIn.sharedInstance().handleURL(url,
                        sourceApplication: options[UIApplicationOpenURLOptionsSourceApplicationKey] as? String,
                        annotation: options[UIApplicationOpenURLOptionsAnnotationKey])
                } else {
                    // Fallback on earlier versions
                }

                return true
        }

---

这个解决方案对我有效

func application(application: UIApplication,
    openURL url: NSURL, options: [String: AnyObject]) -> Bool {

        return FBSDKApplicationDelegate.sharedInstance().application(application, openURL: url, sourceApplication: options[UIApplicationOpenURLOptionsSourceApplicationKey] as! String, annotation: nil)  ||
            GIDSignIn.sharedInstance().handleURL(url,
            sourceApplication: options[UIApplicationOpenURLOptionsSourceApplicationKey] as? String,
            annotation: options[UIApplicationOpenURLOptionsAnnotationKey] as? String)
}

---

这个解决方案适合我

func application(application: UIApplication,
    openURL url: NSURL, options: [String: AnyObject]) -> Bool {

        return FBSDKApplicationDelegate.sharedInstance().application(application, openURL: url, sourceApplication: options[UIApplicationOpenURLOptionsSourceApplicationKey] as! String, annotation: nil)  ||
            GIDSignIn.sharedInstance().handleURL(url,
            sourceApplication: options[UIApplicationOpenURLOptionsSourceApplicationKey] as? String,
            annotation: options[UIApplicationOpenURLOptionsAnnotationKey] as? String)
}

//请先测试此条件，如果它是用于GIDSignIn标志值的worksput（或）condition int return语句

---

//请先测试此条件，如果它是GIDSignIn标志值的works put（或）condition int return语句

此函数在Swift 3.0中适用于iOS 8.0及以上版本

//对早期版本的回退

func application(application: UIApplication, openURL url: NSURL, sourceApplication: String?, annotation: AnyObject) -> Bool {

    return (FBSDKApplicationDelegate.sharedInstance().application( application,openURL: url,sourceApplication: sourceApplication,annotation: annotation) || GIDSignIn.sharedInstance().handleURL(url, sourceApplication: sourceApplication, annotation: annotation))
}

---

Swift 3.0中的以下功能适用于iOS 8.0及以上版本

//对早期版本的回退

func application(application: UIApplication, openURL url: NSURL, sourceApplication: String?, annotation: AnyObject) -> Bool {

    return (FBSDKApplicationDelegate.sharedInstance().application( application,openURL: url,sourceApplication: sourceApplication,annotation: annotation) || GIDSignIn.sharedInstance().handleURL(url, sourceApplication: sourceApplication, annotation: annotation))
}

---

@EICaptainv2.0我是否可以更新我的问题，因为在应用您的答案后，我仍然无法使用它out@EICaptainv2.0我可以更新我的问题吗？因为在应用了你的答案后，我仍然无法解决它