exc_bad_access dismissModalViewControllerAnimated

Question

我是iPhone SDK开发人员的新手，我不是英国人，所以我为自己的水平道歉。

这是我的问题： 我有一个tabBarcontroller，有3个项目，每个都有一个navBarcontroller

[self.loginViewController release];
[self setLoginViewController:[[LoginViewController alloc] init]];
[[self loginViewController] setDelegate:self];
[[self loginViewController] isLoggued];

self.tabBarController = [[UITabBarController alloc] init];

_FirstViewController = [[[FirstViewController alloc] init] autorelease];
_FirstViewController.title = @"title 1";

UINavigationController* navController1 = [[[UINavigationController alloc]
                                           initWithRootViewController:_FirstViewController] autorelease];

_SecondViewController = [[[SecondViewController alloc] init] autorelease];
_SecondViewController.title = @"title 2";

UINavigationController* navController2 = [[[UINavigationController alloc]
                                           initWithRootViewController:_SecondViewController] autorelease];

_ThirdViewController = [[[_ThirdViewController alloc] init] autorelease];
_ThirdViewController.title = @"title 3";

UINavigationController* navController3 = [[[UINavigationController alloc]
                                           initWithRootViewController:_ThirdViewController] autorelease];

self.tabBarController.viewControllers = [NSArray arrayWithObjects:navController1, navController2, navController3, nil];
[self.window addSubview:self.tabBarController.view];
// adds the tab bar's view property to the window
[self.window makeKeyAndVisible];

[self.tabBarController release];

if ([self respondsToSelector:@selector(loginViewControllerLogout:)]) {
    [self performSelector:@selector(loginViewControllerLogout:) withObject:[self loginViewController]];
}

return YES;

这是选择器

-(void)loginViewControllerLogout:(LoginViewController *)loginViewController {

if (![self.loginViewController logguedIn])
    [self.tabBarController presentModalViewController:self.loginViewController animated:YES];
}

当我被记录时，我打电话给：

-(void)loginViewControllerDidFinish:(LoginViewController *)loginViewController {
    [self.loginViewController dismissModalViewControllerAnimated:YES];
}

这些代码在应用程序首次启动时起作用。 LoginViewController显示＆gt;登录成功＆gt; LoginViewcontroller dismiss＆gt; FirstViewController显示。 但是，如果我转到thirdViewController，请单击logout： 选择器LoginViewControllerLogout调用＆gt; LoginViewController显示＆gt;登录成功＆gt;在dismissModal崩溃。

没有错误堆栈，只有exc_bad_access错误。 loginViewController有多于1个保留。

提前致谢

编辑：所有功能都在AppDelegate

中

Answer 1

而不是

[self.tabBarController presentModalViewController:self.loginViewController animated:YES];

试试这个

[self presentModalViewController:self.loginViewController animated:YES];

这应该适用于你在窗口中呈现模态而不是tabbar ..

或

[self presentModalViewController:loginViewController animated:YES];

Answer 2

EXC_BAD_ACCESS表示您正在尝试访问已经发布的内容。我想你不需要回调你的loginViewController来解除模态视图。只需发布当前视图，您的其他视图就在那里等着您。

[self.view dismissModalViewControllerAnimated:YES];