在ObjC中，如何在子类中隐藏超类方法的实现? [英] In ObjC, how do I hide implementation a superclass's methods in a subclass?

问题描述

在ObjC中，如何在子类中隐藏超类方法的实现?

In ObjC, how do I hide implementation a superclass's methods in a subclass?

我不确定@private是否可以解决问题，因为它似乎仅适用于ivars.

I'm not sure if @private would do the trick, as it appears to only apply to ivars.

推荐答案

Obj-C中没有实际上私有"方法；由于可以在运行时将任何消息发送到任何对象，因此无法阻止某人发送您关心的消息.

There are no actually "private" methods in Obj-C; since any message can be sent to any object at runtime, there's no way to prevent someone from sending the message you care about.

也就是说，您可以在子类中拦截该消息，而不处理它.使超类的方法不可访问的最简单方法是在子类中重写它，而不执行任何操作:

That said, you can intercept that message in the subclass and not handle it. The simplest way to make a superclass's method inaccessible is to override it in the subclass and do nothing:

- (void)someMethodIDontWantToSupport
{
}

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