SIGABRT due to view change?

EJDSlayer · 11-16-2011, 04:08 AM

Hi all,

I'm trying to add a subview to my current view as I have done before but I think it's causing a SIGABRT. Is there anyway I can trap what is actually causing this error?

My code is as follows:

Code:

- (void)tableView:(UITableView *)tableView
accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath {

    // Loads the specified .xib file as designed earlier.
    if (contactEdit == nil)
    {
        ContactEdit *contactsE = [[ContactEdit alloc] init];
        contactsE.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
        self.contactEdit = contactsE;
        [contactsE release];
    }
 
    [self.view addSubview:self.contactEdit.view]; 
}

The ContactEdit class is as follows:

Code:

#import <UIKit/UIKit.h>

@class EditableField;

@interface ContactEdit : UIViewController
{
    UITableView *table;
}

@property (nonatomic, retain) IBOutlet UITableView *table;

@end

And the view class I am trying to add it to is as follows:

Code:

#import <UIKit/UIKit.h>
#import <AddressBook/AddressBook.h>
#import <AddressBookUI/AddressBookUI.h>

@class ContactData;
@class ContactEdit;

#define kTableViewRowHeight 66

@interface ContactsList : UIViewController
<UITableViewDelegate, UITableViewDataSource, UISearchBarDelegate>
{
}

The ContactList class is created, displayed and functions fine. The issue only comes when I try and add the subview to it within the AccessoryButtonTapped function.

Any help is much appreciated.

Kind Regards,
Slayer.

dabronx · 11-19-2011, 04:27 AM

Where is contactEdit declared? If you are not retaining it, then you are assigning it a value and then killing the object the value points to.

Code:

self.contactEdit = contactsE;

then you kill off contactsE

Code:

[contactsE release]

If self.contactEdit is not RETAIN'd in your .h file, you just threw away the contents that it points to.

If you don't want to retain contactEdit, you could:

Code:

self.contactEdit = [contactsE copy];

You can also turn NSZombie on (its in this forum somewhere) and it will tell you a bit more about what's wrong - most likely trying to use a variable you already killed.

Hopefully helpful.

Quote:

Originally Posted by EJDSlayer

Hi all,

I'm trying to add a subview to my current view as I have done before but I think it's causing a SIGABRT. Is there anyway I can trap what is actually causing this error?

My code is as follows:

Code:

- (void)tableView:(UITableView *)tableView
accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath {

    // Loads the specified .xib file as designed earlier.
    if (contactEdit == nil)
    {
        ContactEdit *contactsE = [[ContactEdit alloc] init];
        contactsE.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
        self.contactEdit = contactsE;
        [contactsE release];
    }
 
    [self.view addSubview:self.contactEdit.view]; 
}

The ContactEdit class is as follows:

Code:

#import <UIKit/UIKit.h>

@class EditableField;

@interface ContactEdit : UIViewController
{
    UITableView *table;
}

@property (nonatomic, retain) IBOutlet UITableView *table;

@end

And the view class I am trying to add it to is as follows:

Code:

#import <UIKit/UIKit.h>
#import <AddressBook/AddressBook.h>
#import <AddressBookUI/AddressBookUI.h>

@class ContactData;
@class ContactEdit;

#define kTableViewRowHeight 66

@interface ContactsList : UIViewController
<UITableViewDelegate, UITableViewDataSource, UISearchBarDelegate>
{
}

The ContactList class is created, displayed and functions fine. The issue only comes when I try and add the subview to it within the AccessoryButtonTapped function.

Any help is much appreciated.

Kind Regards,
Slayer.