在Swift中“以NSExceptiontypes的未捕获exception终止”
当我点击一个button的应用程序只是崩溃，我得到这个错误：
2015-06-12 19:33:16.150 scroll view[79136:11092579] -[scroll_view.ViewController Action:]: unrecognized selector sent to instance 0x7f834148bdd0 2015-06-12 19:33:16.153 scroll view[79136:11092579] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[scroll_view.ViewController Action:]: unrecognized selector sent to instance 0x7f834148bdd0' *** First throw call stack: ( 0 CoreFoundation 0x0000000103766c65 __exceptionPreprocess + 165 1 libobjc.A.dylib 0x00000001052d1bb7 objc_exception_throw + 45 2 CoreFoundation 0x000000010376e0ad -[NSObject(NSObject) doesNotRecognizeSelector:] + 205 3 CoreFoundation 0x00000001036c413c ___forwarding___ + 988 4 CoreFoundation 0x00000001036c3cd8 _CF_forwarding_prep_0 + 120 5 UIKit 0x0000000104006da2 -[UIApplication sendAction:to:from:forEvent:] + 75 6 UIKit 0x000000010411854a -[UIControl _sendActionsForEvents:withEvent:] + 467 7 UIKit 0x0000000104117919 -[UIControl touchesEnded:withEvent:] + 522 8 UIKit 0x00000001043b1a10 _UIGestureRecognizerUpdate + 9487 9 UIKit 0x0000000104053686 -[UIWindow _sendGesturesForEvent:] + 1041 10 UIKit 0x00000001040542b2 -[UIWindow sendEvent:] + 666 11 UIKit 0x000000010401a581 -[UIApplication sendEvent:] + 246 12 UIKit 0x0000000104027d1c _UIApplicationHandleEventFromQueueEvent + 18265 13 UIKit 0x00000001040025dc _UIApplicationHandleEventQueue + 2066 14 CoreFoundation 0x000000010369a431 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17 15 CoreFoundation 0x00000001036902fd __CFRunLoopDoSources0 + 269 16 CoreFoundation 0x000000010368f934 __CFRunLoopRun + 868 17 CoreFoundation 0x000000010368f366 CFRunLoopRunSpecific + 470 18 GraphicsServices 0x000000010774da3e GSEventRunModal + 161 19 UIKit 0x0000000104005900 UIApplicationMain + 1282 20 scroll view 0x000000010356ac67 main + 135 21 libdyld.dylib 0x0000000105a29145 start + 1 22 ??? 0x0000000000000001 0x0 + 1 ) libc++abi.dylib: terminating with uncaught exception of type NSException 这是我的代码：
var imageView: UIImageView! var scrollView: UIScrollView! var containerView = UIView() var buttonScroll: UIScrollView! override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. // 1 imageView = UIImageView(image: UIImage(named: "Map 1.png")) // 2 scrollView = UIScrollView(frame: view.bounds) scrollView.backgroundColor = UIColor.blackColor() // 3 scrollView.contentSize = imageView.bounds.size // 4 scrollView.addSubview(imageView) view.addSubview(scrollView) scrollView.contentSize.height = scrollView.frame.size.height var lvl1button = UIButton.buttonWithType(UIButtonType.Custom) as! UIButton lvl1button.frame = CGRectMake(250, 140, 100, 50) let level1 = UIImage(named: "Lvl 1 Button.png") as UIImage! lvl1button.setImage(level1, forState: .Normal) lvl1button.addTarget(self, action: "Action:", forControlEvents: UIControlEvents.TouchUpInside) scrollView.addSubview(lvl1button)
您正在设置一个名为"Action:"的动作select器的button。
lvl1button.addTarget(self, action: "Action:", forControlEvents: UIControlEvents.TouchUpInside)
但是，你的视图控制器自己没有这样的方法，所以当Cocoa尝试按下button时，你会崩溃。 不幸的是，你没有显示你的代码的一部分，所以只能猜测，但可能有很多原因这种不匹配：冒号可能是错的，拼写或大小写可能是错误的，等等。 或者，也许你忘了写方法！