暧昧参考成员的AppDelegate

“下标”

我是从2版本迁移我的雨燕代码3.在我的AppDelegate.swift我已经正在实施以下方法：暧昧参考成员的AppDelegate

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject : AnyObject]?) -> Bool { 

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

    // error below this line 
    if let notification = launchOptions?[UIApplicationLaunchOptionsKey.remoteNotification] as? [NSObject : AnyObject] { 
    } else {} 
    return true 
}

，我发现了以下错误：

Ambiguous reference to member 'subscript'

我该如何解决这个问题？

来源

2017-03-02 Alexandre Lara

通常是因为你做了'东西[somethingelse]'，但你没有指定编译器'something'可以使用'[]'（下标）。另外，你的方法不是Swift 3：请在这里检查：https：//developer.apple.com/reference/uikit/uiapplicationdelegate/1622921-application“Swift3 compliant one”。 – Larme

继@Larme建议我通过改变方法签名来解决这个问题：

func application(_ application: UIApplication, 
          didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey : Any]? = nil) -> Bool { 

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

// error below this line 
    if let notification = launchOptions?[UIApplicationLaunchOptionsKey.remoteNotification] as? [NSObject : AnyObject] { 
    } else {} 
    return true 
}

来源

2017-03-02 15:05:38

暧昧参考成员的AppDelegate

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