ios - 我遇到这样的错误，我想到了 tableView，但我在堆栈跟踪中看到了有关 FBSDK 的信息

Question

我找不到错误原因...请帮忙...

0   CoreFoundation  CFStringCreateCopy (in CoreFoundation) + 36

1   libswiftCore.dylib  0x100a149d8 0x10094c000 + 821720

2   libswiftCore.dylib  0x1009f85b0 0x10094c000 + 705968

3   XXX_APP_NAME    XXX_APP_NAME.JSON.uInt8.setter : Swift.UInt8? (in XXX_APP_NAME  (SwiftyJSON.swift:866)

4   XXX_APP_NAME    _fbsdkCreateUpPointingBubbleWithRect (in XXX_APP_NAME) (FBSDKTooltipView.m:320)

5   XXX_APP_NAME    +[FBSDKLoginManager renewSystemCredentials:] (in XXX_APP_NAME  (FBSDKLoginManager.m:97)

6   XXX_APP_NAME    -[FBSDKTooltipView presentFromView:] (in XXX_APP_NAME) (FBSDKTooltipView.m:146)

7   XXX_APP_NAME    -[FBSDKTooltipView presentInView:withArrowPosition:direction:] (in XXX_APP_NAME  (FBSDKTooltipView.m:171)

8   CoreFoundation  __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ (in CoreFoundation) + 24

9   CoreFoundation  __CFRunLoopDoSources0 (in CoreFoundation) + 264

10  CoreFoundation  __CFRunLoopRun (in CoreFoundation) + 712

11  CoreFoundation  CFRunLoopRunSpecific (in CoreFoundation) + 396

12  GraphicsServices    GSEventRunModal (in GraphicsServices) + 168

13  UIKit   UIApplicationMain (in UIKit) + 1488

14  XXX_APP_NAME    XXX_APP_NAME.AlarmListViewController.tableView (XXX_APP_NAME.AlarmListViewController)(ObjectiveC.UITableView, cellForRowAtIndexPath : ObjectiveC.NSIndexPath) -> ObjectiveC.UITableViewCell (in XXX_APP_NAME) (AlarmListViewController.swift:112)

15  libdyld.dylib   start (in libdyld.dylib) + 4

Answer 1

看起来 FBSDK 正在调用特定 tableViewRow 上的某种工具提示对象，但 AlarmListViewController.table cellForRowAtIndexPath: 正在崩溃。

由于您正在寻求帮助识别此堆栈跟踪中的错误，因此我建议您添加 Exception Breakpoint 如果您还没有这样做的话。这将帮助您查明发生错误的确切行。如果这不起作用，请尝试在 cellForRowAtIndexPath: 中放置一个断点，然后再次运行应用程序，逐步执行代码，直到找到导致错误的行和条件。希望这有帮助!