正在执行准备工作

Question

2016-01-19 23:21：15.132 Test2 [86049：25427867] ***由于未捕获异常'NSInvalidArgumentException'，原因：'Receiver（）没有标识符'gameSegue'

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) { 
    if segue.identifier == "gameSegue"{ 
     let gameViewController = segue.destinationViewController as! GameViewController 
     gameViewController.performSegueWithIdentifier("gameSegue", sender: gameViewController) 
    } 
} 

    viewController = MainMenuViewController() 
    let segue = UIStoryboardSegue(identifier: "gameSegue", source: MainMenuViewController(), destination: GameViewController()) 
    viewController.prepareForSegue(segue, sender: self) 

我得到上面每当我打电话prepareForSegue功能

Answer 1

的错误更换

let gameViewController = segue.destinationViewController as! GameViewController 
gameViewController.performSegueWithIdentifier("gameSegue", sender: gameViewController) 


viewController = MainMenuViewController() 
let segue = UIStoryboardSegue(identifier: "gameSegue", source: MainMenuViewController(), destination: GameViewController()) 
viewController.prepareForSegue(segue, sender: self) 

随着

let detailedView = GameViewController() 
    if let detailedView = segue.destinationViewController as? GameViewController { 
     // Do whatever passing of parameters here.   
    } 

将segue代码添加到您要调用的位置。

performSegueWithIdentifier("gameSegue", sender: nil) 

Answer 2

的代码似乎表明，你想要么两个级联塞格斯（与两个控制器相同的名称），或者你正试图重定向到一个不同的控制器。

这真的是你想要做的吗？

currentController - >“gameSegue” - > gameViewController - >“gameSegue” - > ???

当触发segue时（例如从故事板），prepareForSegue和performSegueWithIdentifier都会自动调用。你不必自己调用performSegueWithIdentifier。