使用自点符号不会调用 dealloc
使用以下代码推送后弹出时，不会调用我的视图控制器类的 dealloc 方法：
self.playerViewController = [[VideoPlayerViewController alloc] init];
[self.playerViewController set_video:video];
[self.navigationController pushViewController:self.playerViewController animated:YES];
[self.playerViewController release];
但是，如果我将推送代码更改为以下内容，则在弹出视图控制器后会适当地调用我的 dealloc：
playerViewController = [[VideoPlayerViewController alloc] init];
[playerViewController set_video:video];
[self.navigationController pushViewController:playerViewController animated:YES];
[playerViewController release];
我想我理解了使用点符号/self，但显然不是。谁能解释一下这里的问题吗？
这是属性：
@property (nonatomic, retain) VideoPlayerViewController *playerViewController;
这是合成：
@synthesize playerViewController;
The dealloc method of my view controller class is not called when popped after being pushed with the following code:
self.playerViewController = [[VideoPlayerViewController alloc] init];
[self.playerViewController set_video:video];
[self.navigationController pushViewController:self.playerViewController animated:YES];
[self.playerViewController release];
However if I change the push code to the following, then my dealloc is called appropriately after the view controller is popped:
playerViewController = [[VideoPlayerViewController alloc] init];
[playerViewController set_video:video];
[self.navigationController pushViewController:playerViewController animated:YES];
[playerViewController release];
I thought I understood the use of dot notation/self, but obviously not. Can anyone explain the problem here?
Here is the property:
@property (nonatomic, retain) VideoPlayerViewController *playerViewController;
and here is the synthesize:
@synthesize playerViewController;
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你保留了两次。
但你只释放一次。
要解决内存管理问题，您可以将代码更改为如下所示：
许多人说
[self.foo release]是不好的风格。您应该考虑将其替换为[foo release]You are retaining twice.
But you only release one time.
To fix your memory management issue you could change the code to something like this:
And many people say
[self.foo release]is bad style. You should consider to replace it with[foo release]