ios - CSStickyHeaderFlowLayout swift 接收器没有带标识符的 segue

Question

我正在使用 CSStickyHeaderFlowLayout用于 Swift 中的视差 header 。 Xcode 7 swift 2.0 。

我测试了 github swift demo .当转到另一个 View Controller 时，应用程序崩溃了。 日志说:

Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Receiver () has no segue with identifier 'great1'

我还测试了 github object-c 演示代码，segue 工作正常。

我发现下面的代码有问题。它在 appDelegate.swift 中，用于存储库中的快速演示代码。有谁知道保持 segue 工作的解决方案，同时具有如下图所示的 stickyParallaxHeader。

[ ] [ ]

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        // Override point for customization after application launch.

        let stickyHeaderFlowLayout = CSStickyHeaderFlowLayout()
        let collectionViewController = CollectionViewController(collectionViewLayout: stickyHeaderFlowLayout)

        let window = UIWindow(frame: UIScreen.mainScreen().bounds)
        window.rootViewController = collectionViewController
        window.makeKeyAndVisible()
        self.window = window
        return true
    }

下面是调试日志。

    Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Receiver (<collectionviewmapdemo.CollectionViewController: 0x7fdbdb01d600>) has no segue with identifier 'great1''
*** First throw call stack:
(
    0   CoreFoundation                      0x0000000108d50f65 __exceptionPreprocess + 165
    1   libobjc.A.dylib                     0x0000000109116deb objc_exception_throw + 48
    2   UIKit                               0x0000000107919692 -[UIViewController shouldPerformSegueWithIdentifier:sender:] + 0
    3   collectionviewmapdemo           0x00000001051a6ba7 _TFC25collectionviewmapdemo24CollectionViewController14collectionViewfS0_FTCSo16UICollectionView24didSelectItemAtIndexPathCSo11NSIndexPath_T_ + 135
    4   collectionviewmapdemo           0x00000001051a6c2f _TToFC25collectionviewmapdemo24CollectionViewController14collectionViewfS0_FTCSo16UICollectionView24didSelectItemAtIndexPathCSo11NSIndexPath_T_ + 79
    5   UIKit                               0x0000000107f91eb0 -[UICollectionView _selectItemAtIndexPath:animated:scrollPosition:notifyDelegate:] + 701
    6   UIKit                               0x0000000107fb2d51 -[UICollectionView touchesEnded:withEvent:] + 574
    7   UIKit                               0x0000000107988663 forwardTouchMethod + 349
    8   UIKit                               0x000000010798872c -[UIResponder touchesEnded:withEvent:] + 49
    9   UIKit                               0x0000000107988663 forwardTouchMethod + 349
    10  UIKit                               0x000000010798872c -[UIResponder touchesEnded:withEvent:] + 49
    11  UIKit                               0x0000000107c3dca5 _UIGestureRecognizerUpdate + 10289
    12  UIKit                               0x00000001077f7592 -[UIWindow _sendGesturesForEvent:] + 1137
    13  UIKit                               0x00000001077f8681 -[UIWindow sendEvent:] + 849
    14  UIKit                               0x00000001077aa752 -[UIApplication sendEvent:] + 263
    15  UIKit                               0x0000000107785fcc _UIApplicationHandleEventQueue + 6693
    16  CoreFoundation                      0x0000000108c7d0a1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
    17  CoreFoundation                      0x0000000108c72fcc __CFRunLoopDoSources0 + 556
    18  CoreFoundation                      0x0000000108c72483 __CFRunLoopRun + 867
    19  CoreFoundation                      0x0000000108c71e98 CFRunLoopRunSpecific + 488
    20  GraphicsServices                    0x000000010b240ad2 GSEventRunModal + 161
    21  UIKit                               0x000000010778b676 UIApplicationMain + 171
    22  collectionviewmapdemo           0x00000001051b555d main + 109
    23  libdyld.dylib                       0x0000000109c3f92d start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException

Answer 1

我终于解决了。

1. 将以上代码从项目中移除，保留

   func application(application: UIApplication, didFinishLaunchingWithOptions  launchOptions: [NSObject: AnyObject]?) -> Bool { return true }
   

2. 确保布局类是CSStickyHeaderFlowLayout，见下图。