为什么在调用popViewControllerAnimated时ARC不释放内存 [英] Why ARC doesn't release memory when popViewControllerAnimated is called

问题描述

我的项目使用ARC，并且当我必须使用导航控制器显示视图时，请执行以下操作:

my project use ARC, and when i have to show a view with navigation controller i do this:

ShareViewController_iPhone *share = [[ShareViewController_iPhone alloc] initWithNibName:@"ShareViewController_iPhone" bundle:nil];
[self.navigationController pushViewController:share animated:YES];

我可以在xcode中看到内存增加了某个值，然后当我关闭视图时，我这样做了:

and i can see in xcode that the memory is increased of a certain value, then when i dismiss the view i do this:

[self.navigationController popViewControllerAnimated:YES];

但是当视图关闭时，内存不会减少，我该怎么办?

but when the view is closed, the memory doesn't decrease, how i can do it?

推荐答案

当您弹出ViewController且它不释放时，意味着在控制器中有一个参考循环.您必须检查代表是否有参考，阻止，弱参考，强参考.

When you pop a ViewController and it don't release, it means have a reference cycle in your controller. You must check delegate if have, block, weak, strong reference.

• 您的代表必须是弱引用.
• 如果使用块.自我必须是弱引用:__weak id weakSekf =自我；

希望这些信息对您有所帮助. :)

Hope these information will help you. :)

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