Ios 如何使用谷歌和x2B；和facebook登录在同一appdelegate.swift中

我的应用程序使用google+登录，在我的appdelegate.swift中，我有：

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
    // Override point for customization after application launch.

    var configureError: NSError?
    GGLContext.sharedInstance().configureWithError(&configureError)
    assert(configureError == nil, "Error configuring Google services: \(configureError)")

    GIDSignIn.sharedInstance().delegate = self

    return true

}


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

现在我还想插入facebook登录，但我必须在appdelegate.swift中添加以下代码：

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
    // Override point for customization after application launch.
    return FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions: launchOptions)
}

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

但是这个返回错误是因为函数“application”已经存在，我如何同时执行google+和facebook相同的appdelegate.swift呢

---

谢谢。

您的应用程序应该处理facebook

和

谷歌链接，然后返回

true

，如果其中一个

或

可以处理给定的链接

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

        let googleDidHandle = GIDSignIn.sharedInstance().handleURL(url,
            sourceApplication: sourceApplication,
            annotation: annotation)

        let facebookDidHandle = FBSDKApplicationDelegate.sharedInstance().application(
            application,
            openURL: url,
            sourceApplication: sourceApplication,
            annotation: annotation)

        return googleDidHandle || facebookDidHandle
}

在

didfishLaunching

中：

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
    // Override point for customization after application launch.

    var configureError: NSError?
    GGLContext.sharedInstance().configureWithError(&configureError)
    assert(configureError == nil, "Error configuring Google services: \(configureError)")

    GIDSignIn.sharedInstance().delegate = self

    return FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions: launchOptions)

}

---

在Swift 3中，需要这样做：

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {

    FBSDKCoreKit.ApplicationDelegate.shared.application(application, didFinishLaunchingWithOptions: launchOptions)

    GIDSignIn.sharedInstance().clientID = "your_client_id"
    GIDSignIn.sharedInstance().delegate = self

    return true
}

func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
    let handledFB = FBSDKCoreKit.ApplicationDelegate.shared.application(app, open: url, options: options)
    let handledGoogle = GIDSignIn.sharedInstance().handle(url)
    return handledFB || handledGoogle
}

重写并实现下一个方法：

   func application(_ app: UIApplication, open url: URL, options: [UIApplicationOpenURLOptionsKey : Any]) -> Bool {
    let sourceApplication =  options[UIApplicationOpenURLOptionsKey.sourceApplication] as? String
    let annotation = options[UIApplicationOpenURLOptionsKey.annotation]

    let googleHandler = GIDSignIn.sharedInstance().handle(
        url,
        sourceApplication: sourceApplication,
        annotation: annotation )

    let facebookHandler = FBSDKApplicationDelegate.sharedInstance().application (
        app,
        open: url,
        sourceApplication: sourceApplication,
        annotation: annotation )

    return googleHandler || facebookHandler
}

然后：

---

在Swift 5中，您可以这样做：

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {

    FBSDKCoreKit.ApplicationDelegate.shared.application(application, didFinishLaunchingWithOptions: launchOptions)

    GIDSignIn.sharedInstance().clientID = "your_client_id"
    GIDSignIn.sharedInstance().delegate = self

    return true
}

func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
    let handledFB = FBSDKCoreKit.ApplicationDelegate.shared.application(app, open: url, options: options)
    let handledGoogle = GIDSignIn.sharedInstance().handle(url)
    return handledFB || handledGoogle
}