我正在开发一个简单的游戏,当加载一个特定的UIViewController(称为SPSwipes.
swift)时,我遇到麻烦.在屏幕上,有三个按钮:5,10和25.当选择一个时,在该场景中设置一个变量,并且玩家移动到主游戏GameScene.swift.
据我所知,变量在GameScene中被识别,但是当我在模拟器中打开SPSwipes视图时,会出现’NSUnknownKeyException’错误.这是通过一个段落完成的.以下是错误更详细的信息:
2014-11-09 15:32:43.718 Swipe Racer[2644:1620056] *** Terminating app due to uncaught exception 'NSUnknownKeyException',reason: '[<Swipe_Racer.SPSwipes 0x7fbf52d461b0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key fiveSwipes.' *** First throw call stack: ( 0 CoreFoundation 0x000000010c021f35 __exceptionPreprocess + 165 1 libobjc.A.dylib 0x000000010dd1bbb7 objc_exception_throw + 45 2 CoreFoundation 0x000000010c021b79 -[NSException raise] + 9 3 Foundation 0x000000010c4397b3 -[NSObject(NSKeyValueCoding) setValue:forKey:] + 259 4 CoreFoundation 0x000000010bf6be80 -[NSArray makeObjectsPerformSelector:] + 224 5 UIKit 0x000000010cd28c7d -[UINib instantiateWithOwner:options:] + 1506 6 UIKit 0x000000010cb87f98 -[UIViewController _loadViewFromNibNamed:bundle:] + 242 7 UIKit 0x000000010cb88588 -[UIViewController loadView] + 109 8 UIKit 0x000000010cb887f9 -[UIViewController loadViewIfrequired] + 75 9 UIKit 0x000000010cb88c8e -[UIViewController view] + 27 10 UIKit 0x000000010caa7ca9 -[UIWindow addRootViewControllerViewIfPossible] + 58 11 UIKit 0x000000010caa8041 -[UIWindow _setHidden:forced:] + 247 12 UIKit 0x000000010cab472c -[UIWindow makeKeyAndVisible] + 42 13 UIKit 0x000000010ca5f061 -[UIApplication _callInitializationDelegatesForMainScene:transitionContext:] + 2628 14 UIKit 0x000000010ca61d2c -[UIApplication _runWithMainScene:transitionContext:completion:] + 1350 15 UIKit 0x000000010ca60bf2 -[UIApplication workspaceDidEndTransaction:] + 179 16 FrontBoardServices 0x000000011383b2a3 __31-[FBSSerialQueue performAsync:]_block_invoke + 16 17 CoreFoundation 0x000000010bf5753c __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 12 18 CoreFoundation 0x000000010bf4d285 __CFRunLoopDoBlocks + 341 19 CoreFoundation 0x000000010bf4d045 __CFRunLoopRun + 2389 20 CoreFoundation 0x000000010bf4c486 CFRunLoopRunSpecific + 470 21 UIKit 0x000000010ca60669 -[UIApplication _run] + 413 22 UIKit 0x000000010ca63420 UIApplicationMain + 1282 23 Swipe Racer 0x000000010be380de top_level_code + 78 24 Swipe Racer 0x000000010be3811a main + 42 25 libdyld.dylib 0x000000010e507145 start + 1 26 ??? 0x0000000000000001 0x0 + 1 ) libc++abi.dylib: terminating with uncaught exception of type NSException (lldb)
正如你所看到的,我的第一个变量有五个问题(我会想像两个人之间会有错误).什么是’这个类不是关键的五重要的编码符合五重要的意义?我该如何解决?
我的SPSwipes.swift文件:
class SPSwipes: UIViewController { var no_of_swipes = 0 @IBAction func fiveSwipes(sender: AnyObject) { no_of_swipes = 5 //and so on }
先谢谢你,
将