当我运行我的应用程序时,我在控制台中看到这个日志:
CALayer position contains NaN: [nan -0.5]
该应用程序由一个UITaBar组成,其中第一个选项卡是UINavigationController。在NavController中,我启动了AddressBookPicker。在AddressBookPicker中,我只选择显示电话号码。
当我选择一个仅有电子邮件地址的联系人时,就会看到这个日志。我没有看到任何崩溃或任何问题,只是将日志打印到控制台上。希望确保这不是一个隐藏的问题,在启动后会导致崩溃。
下面是相关代码和堆栈跟踪的片段。不确定要粘贴哪些其他代码,请告诉我是否有任何可能有所帮助的部分。
感谢您的帮助/输入。
谢谢!
代码
ABPeoplePickerNavigationController *picker = [[ABPeoplePickerNavigationController alloc] init];
NSArray *displayedItems = [NSArray arrayWithObjects: [NSNumber numberWithInt:kABPersonPhoneProperty]), nil];
picker.displayedProperties = displayedItems;
picker.peoplePickerDelegate = self;
[self presentModalViewController:picker animated:YES];
堆栈跟踪
#0 0x00096377 in NSLog
#1 0x046b38c9 in CALayerSetPosition
#2 0x046b3846 in -[CALayer setPosition:]
#3 0x046b375f in -[CALayer setFrame:]
#4 0x002f510b in -[UIView(Geometry) setFrame:]
#5 0x003dbe6d in -[UILabel setFrame:]
#6 0x023ed095 in -[ABPersonTableViewDataSource reloadNoValueLabelAnimated:]
#7 0x0244cf53 in -[ABPersonTableViewDataSource reloadDataIncludingHeaderView:invalidatePropertyData:]
#8 0x023f30d4 in -[ABPersonTableViewDataSource reloadDataIncludingHeaderView:]
#9 0x023eabc9 in -[ABPersonViewControllerHelper prepareViewWithDisplayedProperties:person:allowActions:]
#10 0x023ea6bc in -[ABPersonViewControllerHelper loadViewWithDisplayedProperties:person:allowDeletion:allowActions:]
#11 0x023ea598 in -[ABPersonViewController loadView]
#12 0x0036a54f in -[UIViewController view]
#13 0x003689f4 in -[UIViewController contentScrollView]
#14 0x003787e2 in -[UINavigationController _computeAndApplyScrollContentInsetDeltaForViewController:]
#15 0x00376ea3 in -[UINavigationController _layoutViewController:]
#16 0x0037812d in -[UINavigationController _startTransition:fromViewController:toViewController:]
#17 0x00372ccd in -[UINavigationController _startDeferredTransitionIfNeeded]
#18 0x00379d8b in -[UINavigationController pushViewController:transition:forceImmediate:]
#19 0x00372b67 in -[UINavigationController pushViewController:animated:]
#20 0x02403bc2 in -[ABPeoplePickerNavigationController pushViewController:animated:]
#21 0x0242a424 in -[ABPeoplePickerNavigationController showCardForPerson:withMemberCell:animate:forceDisableEditing:personViewController:]
#22 0x0242ce20 in -[ABMembersViewController showCardForPerson:withMemberCell:animate:]
#23 0x0240a0ef in -[ABMembersController abDataSource:selectedPerson:atIndexPath:withMemberCell:animate:]
#24 0x023fdb47 in -[ABMembersDataSource tableView:didSelectRowAtIndexPath:]
#25 0x00333a48 in -[UITableView _selectRowAtIndexPath:animated:scrollPosition:notifyDelegate:]
#26 0x0032a32e in -[UITableView _userSelectRowAtIndexPath:]
#27 0x0003f21a in __NSFireDelayedPerform
#28 0x02631f73 in __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__
#29 0x026335b4 in __CFRunLoopDoTimer
#30 0x0258fdd9 in __CFRunLoopRun
#31 0x0258f350 in CFRunLoopRunSpecific
#32 0x0258f271 in CFRunLoopRunInMode
#33 0x02f2f00c in GSEventRunModal
#34 0x02f2f0d1 in GSEventRun
#35 0x002ceaf2 in UIApplicationMain
#36 0x00002554 in main at main.m:14