我有一个方法,在我的viewController中有一个自定义segue,如下所示：
- func gameOver() {
- performSegueWithIdentifier("GameOver",sender: nil)
- }
- GameViewController().gameOver()
我仔细检查了segue名称,这是正确的.每当我在GameScene.swift文件中调用它时,我都会收到SIGABRT消息,但我不知道为什么.我尝试只用println()消息调用该函数,它工作.
关于为什么会发生这种情况以及如何在GameScene.swift文件中成功调用该方法的任何建议将不胜感激.
谢谢！
附：这是崩溃日志：
- 2015-01-28 21:59:46.181 RunawaySquare[95616:3907041] *** Terminating app due to uncaught exception 'NSInvalidArgumentException',reason: 'Receiver (<RunawaySquare.GameViewController: 0x7fe4305c7890>) has no segue with identifier 'GameEnd''
- *** First throw call stack:
- (
- 0 CoreFoundation 0x000000010d461f35 __exceptionPreprocess + 165
- 1 libobjc.A.dylib 0x000000010f39ebb7 objc_exception_throw + 45
- 2 UIKit 0x000000010e20dd3b -[UIViewController shouldPerformSegueWithIdentifier:sender:] + 0
- 3 RunawaySquare 0x000000010d2683b2 _TFC13RunawaySquare18GameViewController8gameOverfS0_FT_T_ + 914
- 4 RunawaySquare 0x000000010d261af0 _TFC13RunawaySquare9GameScene12touchesBeganfS0_FTCSo5NSSet9withEventCSo7UIEvent_T_ + 1808
- 5 RunawaySquare 0x000000010d261c3f _TToFC13RunawaySquare9GameScene12touchesBeganfS0_FTCSo5NSSet9withEventCSo7UIEvent_T_ + 79
- 6 SpriteKit 0x000000010df4d7e1 -[SKView touchesBegan:withEvent:] + 946
- 7 UIKit 0x000000010e12d16e -[UIWindow _sendTouchesForEvent:] + 325
- 8 UIKit 0x000000010e12dc33 -[UIWindow sendEvent:] + 683
- 9 UIKit 0x000000010e0fa9b1 -[UIApplication sendEvent:] + 246
- 10 UIKit 0x000000010e107a7d _UIApplicationHandleEventFromQueueEvent + 17370
- 11 UIKit 0x000000010e0e3103 _UIApplicationHandleEventQueue + 1961
- 12 CoreFoundation 0x000000010d397551 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
- 13 CoreFoundation 0x000000010d38d41d __CFRunLoopDoSources0 + 269
- 14 CoreFoundation 0x000000010d38ca54 __CFRunLoopRun + 868
- 15 CoreFoundation 0x000000010d38c486 CFRunLoopRunSpecific + 470
- 16 GraphicsServices 0x000000011480e9f0 GSEventRunModal + 161
- 17 UIKit 0x000000010e0e6420 UIApplicationMain + 1282
- 18 RunawaySquare 0x000000010d26cbee top_level_code + 78
- 19 RunawaySquare 0x000000010d26cc2a main + 42
- 20 libdyld.dylib 0x000000010fb8a145 start + 1
- )
- libc++abi.dylib: terminating with uncaught exception of type NSException
它说没有segue id.使用“GameEnd”,但有一个,如果在viewcontroller上使用它可以工作
解决方法
这不起作用的原因是你正在创建一个GameViewController的新实例,然后你就是在那上面调用gameOver.你真正想要做的是引用你现有的GameViewController
有几种方法可以做到这一点,我举一个例子.
将viewController属性添加到GameScene类
- class GameScene {
- // we need to make sure to set this when we create our GameScene
- var viewController: GameViewController!
在你的GameViewController文件中
- // after GameScene is instantiated
- gameScene.viewController = self
现在我们引用了viewController,让我们在GameScene类中使用它
- // somewhere in GameScene
- self.viewController.gameOver()
