iOS crash: respondsToSelector: message sent to deallocated instance - iphone

Question

I am using a UINavigationController as rootviewController and storyboard segue for pushingViewController. I have many viewcontrollers in my app. I pass them using push view controller only.
Crash scenario: (can reproduce)
I have a Products list viewController and I will navigate to products detail viewController when I tap on product in the list using tap Gesture recognizer.
From the detail view controller, I will be pushed to cart item viewController which displays all selected products when I tap a button named 'Addd to cart'.
If I try to pay for all the products I want to choose a contact from the people picker, when I press pay button, it will present peopelpickerController as modalViewController and when I choose a contact it gets crashed.
Crash occurs only when move to and fro from products list view controlelr to peoplepicker contoller. When I debugged using instrument I got crash saying deallocated instance receiving message.
I have included the method where I am getting crash. But i never tried to call the method from any controller.
Code...
//choosing contact and people picker delegate
- (IBAction) chooseContacts: (id) sender {
picker = [
[ABPeoplePickerNavigationController alloc] init];
picker.peoplePickerDelegate = self;
[self presentViewController: picker animated: YES completion: nil];
}
#pragma mark - Addressbook delegate methods
- (void) peoplePickerNavigationControllerDidCancel: (ABPeoplePickerNavigationController * ) peoplePicker {
[self dismissViewControllerAnimated: YES completion: nil];
}
- (BOOL) peoplePickerNavigationController: (ABPeoplePickerNavigationController * ) peoplePicker
shouldContinueAfterSelectingPerson: (ABRecordRef) person {
[self dismissViewControllerAnimated: YES completion: ^ {
[self displayPerson: person];
}];
return NO;
}
Crash occurs in the below method at the line performSegueWithIdentifier,
#pragma mark- Tap gesture delegates
-(void)tapGestureFirstImage:(UITapGestureRecognizer *)sender
{
UIImageView *image = (UIImageView *)sender.view;
if (image.tag < [_productsArray count]) {
[MBProgressHUD showHUDAddedTo:self.view animated:YES];
productDetailDictionary = [_productsArray objectAtIndex:image.tag];
NSLog(#"%#",productDetailDictionary);
[self performSegueWithIdentifier:#"productDetailSeague" sender:sender];
}
NSLog(#"imageView.Tag %ld",(long)image.tag);
}
Crash Log:
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Triggered by Thread: 0
Thread 0 Crashed:
0 libsystem_kernel.dylib 0x39cb11fc __pthread_kill + 8
1 libsystem_pthread.dylib 0x39d1aa2e pthread_kill + 54
2 libsystem_c.dylib 0x39c61ff8 abort + 72
3 libc++abi.dylib 0x38f90cd2 abort_message + 70
4 libc++abi.dylib 0x38fa96e0 default_terminate_handler() + 248
5 libobjc.A.dylib 0x396f291e _objc_terminate() + 190
6 libc++abi.dylib 0x38fa71c4 std::__terminate(void (*)()) + 76
7 libc++abi.dylib 0x38fa6a18 __cxa_throw + 112
8 libobjc.A.dylib 0x396f277e objc_exception_throw + 246
9 CoreFoundation 0x2ef5be88 +[NSException raise:format:] + 100
10 UIKit 0x317b9590 -[UIViewController _preferredInterfaceOrientationForPresentationInWindow:fromInterfaceOrientation:] + 496
11 UIKit 0x317b7dce -[UIWindowController transition:fromViewController:toViewController:target:didEndSelector:animation:] + 2054
12 UIKit 0x317b6e20 -[UIViewController presentViewController:withTransition:completion:] + 4664
13 UIKit 0x31992cae -[UIViewController presentModalViewController:animated:] + 26
14 DHCC Events 0x0008f0c0 0x38000 + 356544
15 libdispatch.dylib 0x39bd5d18 _dispatch_call_block_and_release + 8
16 libdispatch.dylib 0x39bdbd16 _dispatch_after_timer_callback$VARIANT$mp + 46
17 libdispatch.dylib 0x39bd5d04 _dispatch_client_callout + 20
18 libdispatch.dylib 0x39bde7fe _dispatch_source_invoke$VARIANT$mp + 258
19 libdispatch.dylib 0x39bdc73a _dispatch_main_queue_callback_4CF$VARIANT$mp + 186
20 CoreFoundation 0x2ef26814 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 4
21 CoreFoundation 0x2ef250e8 __CFRunLoopRun + 1296
22 CoreFoundation 0x2ee8fc22 CFRunLoopRunSpecific + 518
23 CoreFoundation 0x2ee8fa06 CFRunLoopRunInMode + 102
24 GraphicsServices 0x33b8327e GSEventRunModal + 134
25 UIKit 0x31733044 UIApplicationMain + 1132
26 DHCC Events 0x00041ad6 0x38000 + 39638
27 libdyld.dylib 0x39bfaab4 start + 0
Appreciate your help.

Answer 1

On -(void)tapGestureFirstImage:(UITapGestureRecognizer *)sender
you perform the segue with
[self performSegueWithIdentifier:#"productDetailSeague" sender:sender];
but I think the sender should be self and not sender..
UPDATE
Do you try to perform segue while picker is active? In this case self may be deallocated, so you can try to perform segue after picker is dismissed:
[picker dismissViewControllerAnimated:YES completion:^{[self performSegueWithIdentifier:#"productDetailSeague" sender:self];}];