在AppDelegate中运行一个不是第一个控制器的方法

Question

我在我的应用程序中配置Handoff。对于以这种方式构成的应用

(Entry Point) - >UINavigationController - > InterestedViewController

这就够了：

func application(application: UIApplication, continueUserActivity userActivity: NSUserActivity, restorationHandler: ([AnyObject]?) -> Void) -> Bool { 
     if let win = self.window { 
      let navController = win.rootViewController as! UINavigationController 
      let viewController = navController.topViewController as! myViewController 

      viewController.restoreUserActivityState(userActivity) 
    } 
    return true 
} 

当应用程序使用Handooff，在AppDelegate中这种方法运行启动，在“myViewController”中启动方法func restoreUserActivityState(activity: NSUserActivity)，一切正常。

麻烦的是，我的应用程序以另一种方式构成：

(Entry Point) - >Another ViewController with animated logo - >UINavigationController - >InterestedViewController

所以前面的代码无法正常工作。我无法理解如何修改代码...

Answer 1

func application(application: UIApplication, continueUserActivity userActivity: NSUserActivity, restorationHandler: ([AnyObject]?) -> Void) -> Bool { // Handoff 

    if let win = window { 
     let presentationController = win.rootViewController as! PresentationController 
     let navController = presentationController.presentedViewController as! UINavigationController 
     let viewController = navController.topViewController as! myViewController 

     viewController.restoreUserActivityState(userActivity) 
    } 

    return true 
}