ios - 损坏的应用程序，UIViewcontroller EXC_BAD_ACCESS 在 vi​​ewWillAppear 之后

Question

突然之间，我一定是更改了应用程序中的某些内容，导致它随机崩溃。 viewWillAppear 之后我得到一个 EXC_BAD_ACCESS。我已经注释掉了 View 加载方法中的所有内容，以初始化一个简单的 View 。有时运行良好，有时运行不佳，我附加了两个不同的控制台日志。

-(void) loadView {
        UIView *uv = [[UIView alloc] initWithFrame:CGRectZero];
        [self setView:uv];
        [uv release];
        NSLog(@"[BookScrollVC.m] loadView >>>");
}

当它崩溃时

2012-10-07 09:07:51.780 DILPStatic[2340:207] [BookScrollVC.m] loadView >>>
2012-10-07 09:07:51.781 DILPStatic[2340:207] [BookScrollVC.m] viewDidLoad
2012-10-07 09:07:51.782 DILPStatic[2340:207] [viewDidLoad] exiting...
2012-10-07 09:07:51.783 DILPStatic[2340:207] [viewWillAppear]
Current language:  auto; currently objective-c
Program received signal:  “EXC_BAD_ACCESS”.

何时发挥作用

2012-10-07 09:12:54.702 DILPStatic[2385:207] [BookScrollVC.m] loadView >>>
2012-10-07 09:12:54.703 DILPStatic[2385:207] [BookScrollVC.m] viewDidLoad
2012-10-07 09:12:54.704 DILPStatic[2385:207] [viewDidLoad] exiting...
2012-10-07 09:12:54.705 DILPStatic[2385:207] [viewWillAppear]
2012-10-07 09:12:54.706 DILPStatic[2385:207] *** __NSAutoreleaseFreedObject(): release of previously deallocated object (0x4b59fc0) ignored
2012-10-07 09:12:55.058 DILPStatic[2385:207] [viewDidAppear]

它由pushviewcontroller加载。

BookScrollVC *bookScrollVC = [[BookScrollVC alloc] initWithBook:bookPath];


[self.navigationController setToolbarHidden:YES];
[self.navigationController setNavigationBarHidden:YES];
[self.navigationController pushViewController:bookScrollVC animated:YES];

[bookScrollVC release]; 

Answer 1

我确实通过清理其他类中未正确使用的变量解决了这个问题。这包括缺少 [...release] 和错误地释放 ivars。

希望它能提醒人们实际检查这些事情，尽管这可能不再是 ARC 的问题。