iOS 8 Today Extension

Question

我试图将UITableViewController添加到Today Widget，但每次我将UITableViewController拖到Storyboard并运行Widget时都会崩溃并出现以下错误。

我已多次尝试过。我已经通过使用Table View对象尝试了它，但问题仍然存在。

注意：即使在加载viewDidLoad（）方法之前它也会崩溃。

  

2015-06-06 01：19：20.569 iOSHackerToday [3202：283287] *由于未捕获的异常而终止应用   ＆＃39; NSInvalidArgumentException＆＃39;，原因：＆＃39; * - [ NSArrayM   insertObject：atIndex：]：object不能为nil＆＃39;   ***第一次抛出调用堆栈：（0 CoreFoundation 0x0000000107842c65 __exceptionPreprocess + 165 1 libobjc.A.dylib
  0x00000001074dbbb7 objc_exception_throw + 45 2 CoreFoundation
  0x000000010770f8ca - [__ NSArrayM insertObject：atIndex：] + 954 3
  UIKit 0x0000000107d6f0b9    - [UIViewController _addChildViewController：performHierarchyCheck：notifyWillMove：] + 338 4 UIKit 0x0000000108241a0c    - [_ UIViewServiceViewControllerOperator __createViewController：withContextToken：fbsDisplays：appearanceSerializedRepresentations：legacyAppearance：traitCollection：initialInterfaceOrientation：hostAccessibilityServerPort：canShowTextServices：replyHandler：]   + 2216 5 CoreFoundation 0x0000000107738dec __invoking _ + 140 6 CoreFoundation 0x0000000107738c42 - [NSInvocation invoke] + 290 7 CoreFoundation
  0x00000001077c9016 - [NSInvocation invokeWithTarget：] + 54 8 UIKit
  0x00000001082fd01b - [_ UIViewServiceImplicitAnimationDecodingProxy   forwardInvocation：] + 222 9 CoreFoundation
  0x000000010779ff4f 转发 + 495 10 CoreFoundation
  0x000000010779fcd8 _CF_forwarding_prep_0 + 120 11 CoreFoundation
  0x0000000107738dec 调用_ + 140 12 CoreFoundation
  0x0000000107738c42 - [NSInvocation invoke] + 290 13 CoreFoundation
  0x00000001077c9016 - [NSInvocation invokeWithTarget：] + 54 14 UIKit
  0x00000001082889f4 - [_ UIQueueingProxy forwardInvocation：] + 319 15   CoreFoundation 0x000000010779ff4f    转发 + 495 16 CoreFoundation 0x000000010779fcd8 _CF_forwarding_prep_0 + 120 17 CoreFoundation
  0x0000000107738dec 调用_ + 140 18 CoreFoundation
  0x0000000107738c42 - [NSInvocation invoke] + 290 19 CoreFoundation
  0x00000001077c9016 - [NSInvocation invokeWithTarget：] + 54 20   CoreFoundation 0x000000010779ff4f    转发 + 495 21 CoreFoundation 0x000000010779fcd8 _CF_forwarding_prep_0 + 120 22 CoreFoundation
  0x0000000107738dec 调用_ + 140 23 CoreFoundation
  0x0000000107738c42 - [NSInvocation invoke] + 290 24 libdispatch.dylib   0x0000000109da6f16 _dispatch_call_block_and_release + 12 25   libdispatch.dylib 0x0000000109dc1964   _dispatch_client_callout + 8 26 libdispatch.dylib 0x0000000109daca59 _dispatch_main_queue_callback_4CF + 704 27   CoreFoundation 0x00000001077aa1f9    CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE + 9 28 CoreFoundation 0x000000010776bdcb __CFRunLoopRun   + 2043 29 CoreFoundation 0x000000010776b366 CFRunLoopRunSpecific + 470 30图形服务
  0x000000010b01ca3e GSEventRunModal + 161 31 UIKit
  0x0000000107c3b900 UIApplicationMain + 1282 32 libxpc.dylib
  0x000000010a0a7aec _xpc_objc_main + 453 33 libxpc.dylib
  0x000000010a0a9e91 xpc_main + 185 34基金会   0x0000000107209ee1 service_connection_handler + 0 35 PlugInKit
  0x0000000106ff3a82 - [PKService run] + 521 36 PlugInKit
  0x0000000106ff3747 + [PKService main] + 55 37 PlugInKit
  0x0000000106ff3aa6 + [PKService _defaultRun：arguments：] + 17 38   libextension.dylib 0x000000010978399d NSExtensionMain   + 51 39 libdyld.dylib 0x0000000109df1145 start + 1 40 ??? 0x0000000000000001 0x0 + 1）libc ++ abi.dylib：以未捕获的类型异常终止   NSException（lldb）

Answer 1

删除默认布局并拖动新的表格视图控制器时，需要将新视图控制器标记为“初始视图控制器”

这是Apple的文档，它解释了如何做到这一点。 https://developer.apple.com/library/ios/recipes/xcode_help-IB_storyboard/chapters/SetInitialController.html

Answer 2

在情节提要中，如果您使用的是快速制作的自定义视图控制器类，请确保选中“从目标继承模块”框：