问题描述
由于Xcode 6仍然有很多与Swift的错误,我不确定是一个还是我错过了一些东西。
我的类采用协议NSLayoutManagerDelegate。但是似乎不可能重写我需要的方法。我做文档描述:
Since Xcode 6 still has a lots of bugs with Swift, I'm not sure is it one or I'm missing something.My class adopts protocol NSLayoutManagerDelegate. But it seems impossible to override method I need. I do as documentation describes:
override func layoutManager(_ aLayoutManager: NSLayoutManager!,
didCompleteLayoutForTextContainer aTextContainer: NSTextContainer!,
atEnd flag: Bool) {
}
在这里得到错误:方法不覆盖任何方法从其超类。
我该怎么办?
But I get error here: method does not override any method from its superclass.What should I do?
推荐答案
你正在从协议中实现一个方法,是的,覆盖。只需删除 override
关键字即可。覆盖是当你的超类也实现了这个方法,并且你提供了一个替换或修改超类实现的行为的版本。这不是这里发生的。
You're implementing a method from the protocol, yes, but it's not an override. Just remove the override
keyword. An override is when your superclass also implements that method and you're providing a version that replaces or modifies the behavior of the superclass implementation. That's not what's happening here.
这篇关于Swift协议:方法不会覆盖其超类中的任何方法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!