I have a UIButton that in a touchdown event appears UIViewControllerfor viewing. The viewDidLoadapplication crashes with the exception:
- [UILabel stringByTrimmingCharactersInSet:]: unrecognized selector sent to instance 0x16674e30
Here is the error code:
viewController.navigationController.navigationBar.barStyle = UIBarStyleBlack;
UIImage *logo = [UIImage imageNamed:backgroundImageName];
UIImageView *logoView = [[UIImageView alloc] init];
logoView.image = logo;
logoView.frame = CGRectMake(0, 0, 50, 30);
viewController.navigationItem.titleView = logoView;
The last line is the one that causes the failure. I use SWRevealController as the slide style menu in the left drawer. I have 5 others UIViewControllersusing the same code and working correctly, but I cannot find the difference between them and other classes. I know this may seem a little vague, but I don't know where to do it. Any help would be greatly appreciated.
Here is the stack when the main thread crashes:
#0 0x378416a0 in objc_exception_throw ()
#1 0x2d4e47b6 in -[NSObject(NSObject) doesNotRecognizeSelector:] ()
#2 0x2d4e30ae in ___forwarding___ ()
#3 0x2d431dc8 in __forwarding_prep_0___ ()
#4 0x2fcfc78e in -[UINavigationItem initWithTitle:] ()
#5 0x2fcfc6dc in -[UIViewController(UINavigationControllerItem) navigationItem] ()
#6 0x00110b94 in -[CSUtility addleftButtonToNavItem:rightButton:background:rightButtonTitle:forViewController:revealViewController:overrideLeft:] at /Users/shawn/Documents/TruthIt/TruthIOS/TruthiOS/TruthiOS/CSUtility.m:59
#7 0x0012cd92 in -[CSQuestionDetailViewController viewDidLoad] at /Users/shawn/Documents/TruthIt/TruthIOS/TruthiOS/TruthiOS/CSQuestionDetailViewController.m:227
#8 0x2fc6995a in -[UIViewController loadViewIfRequired] ()
#9 0x2fc69718 in -[UIViewController view] ()
#10 0x2fdf5c2a in -[UINavigationController _startCustomTransition:] ()
#11 0x2fd13a16 in -[UINavigationController _startDeferredTransitionIfNeeded:] ()
#12 0x2fd13820 in -[UINavigationController __viewWillLayoutSubviews] ()
#13 0x2fd137b8 in -[UILayoutContainerView layoutSubviews] ()
#14 0x2fc65352 in -[UIView(CALayerDelegate) layoutSublayersOfLayer:] ()
#15 0x2f8eb942 in -[CALayer layoutSublayers] ()
#16 0x2f8e7166 in CA::Layer::layout_if_needed(CA::Transaction*) ()
#17 0x2f8e6ff8 in CA::Layer::layout_and_display_if_needed(CA::Transaction*) ()
#18 0x2f8e6a0c in CA::Context::commit_transaction(CA::Transaction*) ()
#19 0x2f8e681e in CA::Transaction::commit() ()
#20 0x2f8e054c in CA::Transaction::observer_callback(__CFRunLoopObserver*, unsigned long, void*) ()
#21 0x2d4abf68 in __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ ()
#22 0x2d4a98f6 in __CFRunLoopDoObservers ()
#23 0x2d4a9c42 in __CFRunLoopRun ()
#24 0x2d414470 in CFRunLoopRunSpecific ()
#25 0x2d414252 in CFRunLoopRunInMode ()
#26 0x321482ea in GSEventRunModal ()
#27 0x2fcc9844 in UIApplicationMain ()
#28 0x00111d7c in main at /Users/shawn/Documents/TruthIt/TruthIOS/TruthiOS/TruthiOS/main.m:16
, viewWillAppear, . :
Thread 1, Queue : com.apple.main-thread
#0 0x378416a0 in objc_exception_throw ()
#1 0x2d4e47b6 in -[NSObject(NSObject) doesNotRecognizeSelector:] ()
#2 0x2d4e30ae in ___forwarding___ ()
#3 0x2d431dc8 in __forwarding_prep_0___ ()
#4 0x2fcfc78e in -[UINavigationItem initWithTitle:] ()
#5 0x2fcfc6dc in -[UIViewController(UINavigationControllerItem) navigationItem] ()
#6 0x2fd1559a in -[UINavigationController _hasTranslucentNavigationBarIncludingViewController:] ()
#7 0x2fd1542c in -[UINavigationController _shouldNavigationBarInsetViewController:orOverlayContent:] ()
#8 0x2fd14c3e in -[UINavigationController _frameForViewController:] ()
#9 0x2fdf5c48 in -[UINavigationController _startCustomTransition:] ()
#10 0x2fd13a16 in -[UINavigationController _startDeferredTransitionIfNeeded:] ()
#11 0x2fd13820 in -[UINavigationController __viewWillLayoutSubviews] ()
#12 0x2fd137b8 in -[UILayoutContainerView layoutSubviews] ()
#13 0x2fc65352 in -[UIView(CALayerDelegate) layoutSublayersOfLayer:] ()
#14 0x2f8eb942 in -[CALayer layoutSublayers] ()
#15 0x2f8e7166 in CA::Layer::layout_if_needed(CA::Transaction*) ()
#16 0x2f8e6ff8 in CA::Layer::layout_and_display_if_needed(CA::Transaction*) ()
#17 0x2f8e6a0c in CA::Context::commit_transaction(CA::Transaction*) ()
#18 0x2f8e681e in CA::Transaction::commit() ()
#19 0x2f8e054c in CA::Transaction::observer_callback(__CFRunLoopObserver*, unsigned long, void*) ()
#20 0x2d4abf68 in __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ ()
#21 0x2d4a98f6 in __CFRunLoopDoObservers ()
#22 0x2d4a9c42 in __CFRunLoopRun ()
#23 0x2d414470 in CFRunLoopRunSpecific ()
#24 0x2d414252 in CFRunLoopRunInMode ()
#25 0x321482ea in GSEventRunModal ()
#26 0x2fcc9844 in UIApplicationMain ()
#27 0x00124cf4 in main at /Users/shawn/Documents/TruthIt/TruthIOS/TruthiOS/TruthiOS/main.m:16
rmaddy , -, . (, , ) UILabel, . questionTitle, - [UILabel copyWithZone] , , :
Thread 1, Queue : com.apple.main-thread
#0 0x378416a0 in objc_exception_throw ()
#1 0x2d4e47b6 in -[NSObject(NSObject) doesNotRecognizeSelector:] ()
#2 0x2d4e30ae in ___forwarding___ ()
#3 0x2d431dc8 in __forwarding_prep_0___ ()
#4 0x2fcfb9a8 in -[UIViewController setTitle:] ()
#5 0x2de203b6 in -[NSObject(NSKeyValueCoding) setValue:forKey:] ()
#6 0x2de31ffc in -[NSObject(NSKeyValueCoding) setValue:forKeyPath:] ()
#7 0x2d4507e8 in -[NSArray makeObjectsPerformSelector:] ()
#8 0x2ffc44de in -[UINib instantiateWithOwner:options:] ()
#9 0x2ff260fa in -[UIViewController _loadViewFromNibNamed:bundle:] ()
#10 0x2fd87b58 in -[UIViewController loadView] ()
#11 0x2fc6979c in -[UIViewController loadViewIfRequired] ()
#12 0x2fc69718 in -[UIViewController view] ()
#13 0x2fdf5c2a in -[UINavigationController _startCustomTransition:] ()
#14 0x2fd13a16 in -[UINavigationController _startDeferredTransitionIfNeeded:] ()
#15 0x2fd13820 in -[UINavigationController __viewWillLayoutSubviews] ()
#16 0x2fd137b8 in -[UILayoutContainerView layoutSubviews] ()
#17 0x2fc65352 in -[UIView(CALayerDelegate) layoutSublayersOfLayer:] ()
#18 0x2f8eb942 in -[CALayer layoutSublayers] ()
#19 0x2f8e7166 in CA::Layer::layout_if_needed(CA::Transaction*) ()
#20 0x2f8e6ff8 in CA::Layer::layout_and_display_if_needed(CA::Transaction*) ()
#21 0x2f8e6a0c in CA::Context::commit_transaction(CA::Transaction*) ()
#22 0x2f8e681e in CA::Transaction::commit() ()
#23 0x2f8e054c in CA::Transaction::observer_callback(__CFRunLoopObserver*, unsigned long, void*) ()
#24 0x2d4abf68 in __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ ()
#25 0x2d4a98f6 in __CFRunLoopDoObservers ()
#26 0x2d4a9c42 in __CFRunLoopRun ()
#27 0x2d414470 in CFRunLoopRunSpecific ()
#28 0x2d414252 in CFRunLoopRunInMode ()
#29 0x321482ea in GSEventRunModal ()
#30 0x2fcc9844 in UIApplicationMain ()
#31 0x0008cccc in main at /Users/shawn/Documents/TruthIt/TruthIOS/TruthiOS/TruthiOS/main.m:16