我需要在ARC中使用dealloc方法吗？ [英] Do I need use dealloc method with ARC?

问题描述

所以，我有课：

@interface Controller : NSObject
{
    UILabel* fileDescription;
}

@property(strong, nonatomic) UILabel* fileDescription;

我是否需要使用方法dealloc，其中属性fileDescription将等于nil？

For例如：

Do I need use method dealloc where property fileDescription will equal nil?
For example:

-(void)dealloc
{
    fileDescription = nil;
}

如果没有，谁将解除fileDescription使用的内存？

If not, who will dismiss memory used by fileDescription?

推荐答案

通常，您不需要提供子类 dealloc 方法，因为ARC管理生命周期实例变量。

Generally you don't need to provide a subclassed dealloc method as ARC manages the lifetime of the instance variables.

然而，除了释放对象之外，执行清理会很有用，例如删除观察者或关闭网络连接干净利落。因此，您可以在ARC下继承 dealloc ，但不允许您从中调用 [super dealloc] 子类方法。

However it can be useful to perform clean-up other than releasing objects, for example to remove an observer or close a network connection down cleanly. You are therefore allowed to subclass dealloc under ARC, but you are not allowed to call [super dealloc] from within the subclassed method.

然而，在您的特定情况下，它不是必需的。

In your particular case it's not required, however.

这篇关于我需要在ARC中使用dealloc方法吗？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！