UIViewController 没有被释放

Question

我正在尝试将自定义 UIViewController 类弹出到导航控制器，然后当不再查看弹出的控制器时，将其释放。但是，视图控制器仍然存在，我不知道为什么。任何帮助将不胜感激。

界面：

@property (nonatomic, retain) CustomViewController *viewcontroller;

实施：

CustomViewController *vc = [[CustomViewController alloc] initWithNibName:@"CustomViewController" bundle:nil];

self.CustomViewController = vc;

[vc release]; // Release this after setting property to avoid memory leak.

[[self navigationController] pushViewController:[self.CustomViewController autorelease] animated:YES];

// Push in the next view. My thinking is that since pushViewController retains this view, if I autorelease when I send the view, the only thing still retaining the view when it shows up will be the navigation controller, and thus when it is bounced back off of the navigation stack, it should be deallocated. But apparently that's not happening..

Answer 1

你的 alloc 和 init 给它一个保留计数 1，通过 CustomViewController 属性再次给它一个保留消息，把它带到 2。

您需要在某个时候执行以下操作才能发布......

self.CustomViewController = nil;

虽然我不确定您为什么要在事件中存储对它的引用...？！