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POUiTabBarController crashes on popToRootViewController
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  1. POUiTabBarController crashes on popToRootViewController
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    copied!<p>My application crashes when selecting a tab. Here is the code that crashes. </p> <pre><code>- (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController { if ([viewController isKindOfClass:[UINavigationController class]]) { [(UINavigationController*)viewController popToRootViewControllerAnimated:NO]; } } </code></pre> <p>This is the code that is the problem. Apparently when I popToRoot controller a message is sent to a dealloced object.</p> <pre><code>DealElementDisplayController *dealElementDisplayController = [[DealElementDisplayController alloc] initWithStores:storeIds :YES]; dealElementDisplayController.title = [NSString stringWithFormat:@"%@ Products", store.companyName]; [self.navigationController pushViewController:dealElementDisplayController animated:YES]; </code></pre> <p>Here is the exception.</p> <pre><code>Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0xe0000008 Crashed Thread: 0 Thread 0 name: Dispatch queue: com.apple.main-thread Thread 0 Crashed: 0 libobjc.A.dylib 0x3648af78 objc_msgSend + 16 1 UIKit 0x320e809c -[UITableView(UITableViewInternal) _createPreparedCellForGlobalRow:withIndexPath:] + 540 2 UIKit 0x320e717a -[UITableView(_UITableViewPrivate) _updateVisibleCellsNow:] + 1070 3 UIKit 0x320e6904 -[UITableView layoutSubviews] + 200 4 UIKit 0x3208b0d8 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 176 5 CoreFoundation 0x34fc81f4 -[NSObject performSelector:withObject:] + 36 6 QuartzCore 0x36b53a9e -[CALayer layoutSublayers] + 210 7 QuartzCore 0x36b536b6 CA::Layer::layout_if_needed(CA::Transaction*) + 210 8 QuartzCore 0x36b5783c CA::Context::commit_transaction(CA::Transaction*) + 220 9 QuartzCore 0x36b57578 CA::Transaction::commit() + 308 10 QuartzCore 0x36b7f90a CA::Transaction::flush() + 38 11 QuartzCore 0x36b7f8dc +[CATransaction flush] + 28 12 UIKit 0x32096152 _afterCACommitHandler + 46 13 CoreFoundation 0x3503db14 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 12 14 CoreFoundation 0x3503bd50 __CFRunLoopDoObservers + 252 15 CoreFoundation 0x3503c0aa __CFRunLoopRun + 754 16 CoreFoundation 0x34fbf49e CFRunLoopRunSpecific + 294 17 CoreFoundation 0x34fbf366 CFRunLoopRunInMode + 98 18 GraphicsServices 0x362bb432 GSEventRunModal + 130 19 UIKit 0x320b5e76 UIApplicationMain + </code></pre> <p>Here is the stack trace from Zombie Profile. I am using ARC.</p> <pre><code> 0 CoreFoundation ___forwarding___ 1 CoreFoundation _CF_forwarding_prep_0 2 UIKit -[UITableView(UITableViewInternal) _createPreparedCellForGlobalRow:withIndexPath:] 3 UIKit -[UITableView(UITableViewInternal) _createPreparedCellForGlobalRow:] 4 UIKit -[UITableView(_UITableViewPrivate) _updateVisibleCellsNow:] 5 UIKit -[UITableView layoutSubviews] 6 UIKit -[UIView(CALayerDelegate) layoutSublayersOfLayer:] 7 CoreFoundation -[NSObject performSelector:withObject:] 8 QuartzCore -[CALayer layoutSublayers] 9 QuartzCore CA::Layer::layout_if_needed(CA::Transaction*) 10 QuartzCore CA::Context::commit_transaction(CA::Transaction*) 11 QuartzCore CA::Transaction::commit() 12 QuartzCore +[CATransaction flush] 13 UIKit _afterCACommitHandler 14 CoreFoundation __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ 15 CoreFoundation __CFRunLoopDoObservers 16 CoreFoundation __CFRunLoopRun 17 CoreFoundation CFRunLoopRunSpecific 18 CoreFoundation CFRunLoopRunInMode 19 GraphicsServices GSEventRunModal 20 GraphicsServices GSEventRun 21 UIKit UIApplicationMain </code></pre>
 

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