EXC_BAD_ACCESS错误UIButton与ARC的IBAction

Question

我正在使用适用于iOS 4.1的Xcode 4.3.2开发Iphone应用程序

我在IB的UIView中添加了一个UIButton并将其与IBAction连接。 但是当我触摸按钮时，我得到了EXC_BAD_ACCESS错误。

我在创建项目时启用了ARC。

在此错误和谷歌搜索后，我了解到错误的内存管理会导致此错误;但我无法确定是什么导致了这个问题。 我怎么才能找到问题？

.h文件包含

-(IBAction)openTwitterSignInViewController:(id)sender;

.m文件包含

- (void)openTwitterSignInViewController:(id)sender{
    UIViewController *secondViewController = [[TwitterSignInViewController alloc] initWithNibName:@"TwitterSignInViewController" bundle:nil];
    [self.navigationController pushViewController:secondViewController animated:YES]; 
}

此外UIButton和openTwitterSignInViewController通过IB连接。

没有控制台输出，我不知道为什么。所以我正在添加截图。

LoginViewController.m

#import "LoginViewController.h"
#import "Helper.h"
#import "TwitterSignInViewController.h"

@interface LoginViewController ()

@end

@implementation LoginViewController
@synthesize topBarText, userNameText, passwordText, passwordReminderButton, loginButton;
@synthesize signInTwitterButton, registerButton;

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    UIView *paddingView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 15, 20)];

    userNameText.leftView = paddingView;
    userNameText.leftViewMode = UITextFieldViewModeAlways;

    passwordText.leftView = [NSKeyedUnarchiver unarchiveObjectWithData:
                             [NSKeyedArchiver archivedDataWithRootObject: paddingView]];
    passwordText.leftViewMode = UITextFieldViewModeAlways;

    topBarText.font = [UIFont fontWithName:@"Neo Sans Pro" size:14 ];
    userNameText.font = [UIFont fontWithName:@"Neo Sans Pro" size:14];

    passwordText.font = [UIFont fontWithName:@"Neo Sans Pro" size:14];
    passwordReminderButton.titleLabel.font = [UIFont fontWithName:@"Neo Sans Pro" size:14];
    loginButton.titleLabel.font = [UIFont fontWithName:@"Neo Sans Pro" size:14];

    registerButton.titleLabel.font = [UIFont fontWithName:@"Neo Sans Pro" size:14];
}

- (IBAction)openTwitterSignInViewController:(id)sender{
    TwitterSignInViewController *secondViewController = [[TwitterSignInViewController alloc] initWithNibName:@"TwitterSignInViewController" bundle:nil];
    [self.navigationController pushViewController:secondViewController animated:YES]; 
}
- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
    // e.g. self.myOutlet = nil;
}


- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

@end

至少我通过启用Zombie Objects获得了控制台输出。 这是输出。但我找不到错误

2012-08-01 21:11:30.569 adMingle[3156:f803] *** -[LoginViewController performSelector:withObject:withObject:]: message sent to deallocated instance 0x6857420

Answer 1

也在.m文件中声明IBAction。方法名称在任何地方都应该相同：

-(IBAction)openTwitterSignInViewController:(id)sender;

Answer 2

我解决了this answer之类的问题。我已将属性添加到主视图控制器并分配然后调用pushViewController

Answer 3

您可以在显示此LoginViewController的viewcontroller中发布代码吗？这个问题是因为，从某个地方你的对象被过度释放。