CODEWITHSUNDEEP
iosuialertviewexc-bad-accessuiactionsheetcrashlytics
laucel
laucel

Reputation: 509

UIAlertView and UIActionSheet buttonClicked - EXC_BAD_ACCESS

I've received two crash reports on Crashlytics, with similar logs, one for an UIAlertView and one for an UIActionSheet:

Exception Type: EXC_BAD_ACCESS Code: KERN_INVALID_ADDRESS at 0xa0000008

0    libobjc.A.dylib     objc_msgSend + 15
1    UIKit   -[UIAlertView(Private) _buttonClicked:] + 296
2    UIKit   -[UIApplication sendAction:to:from:forEvent:] + 72
3    UIKit   -[UIApplication sendAction:toTarget:fromSender:forEvent:] + 30
4    UIKit   -[UIControl sendAction:to:forEvent:] + 44
5    UIKit   -[UIControl(Internal) _sendActionsForEvents:withEvent:] + 502
6    UIKit   -[UIControl touchesEnded:withEvent:] + 488
7    UIKit   -[UIWindow _sendTouchesForEvent:] + 524
8    UIKit   -[UIApplication sendEvent:] + 380
9    UIKit   _UIApplicationHandleEvent + 6154
10   GraphicsServices    _PurpleEventCallback + 590
11   GraphicsServices    PurpleEventCallback + 34
12 ...   CoreFoundation  __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 34

I'm using ARC and in my code I alloc/init alert views and action sheets in view controllers setting delegates to self. I can't find the source of the problem, any suggestions?

This is an example in SomeViewController.m:

UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:NSLocalizedString(@"Are you sure?", nil) delegate:self cancelButtonTitle:NSLocalizedString(@"Continue",nil) destructiveButtonTitle:NSLocalizedString(@"Yes", nil) otherButtonTitles:nil];
            actionSheet.delegate = self;
            [actionSheet showInView:self.view];

end the I implement (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex

Upvotes: 2

Views: 1401

Answers (2)

user4003752
user4003752

Reputation:

You can debug to see at which statement the exception occurs

  1. Click on 'show breakpoint navigator' on left side panel

  2. Click + button on down of panel

  3. Add exception breakpoint

  4. Done pop up

Now it will shows exception statement

Upvotes: 0

Buntylm
Buntylm

Reputation: 7373

The Finest way to find this kind of bug Use the NSZombieEnabled environment variable.cause of EXC_BAD_ACCESS is from trying to access released objects.Review this

Upvotes: 2

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