子类是否在Objective-C中继承其父类的协议？

问题描述

假设我有一个实现协议的父类：

Suppose I have a parent class that implements a protocol:

@interface GameViewController : UIViewController<GamePrizeDelegate> {
  ...
}

然后我创建它的子类：

And then I make subclasses of it:

@interface TennisViewController : GameViewController {
  ...
}

@interface SoccerViewController : GameViewController {
  ...
}

我有吗在子类中还包括 GamePrizeDelegate ？协议是否也继承了？

Do I have to include the GamePrizeDelegate also in the subclasses? Are the protocols inherited as well?

谢谢！

推荐答案

参考：您的子类继承了协议的采用，所以你不必再采用它。

Referring to Apple's documentation: Your subclass does inherit the adoption of the protocol, so you don't have to adopt it again.

如果一个类采用协议，则认为该类符合正式的
协议，或者
继承自另一个类的
采用它即可。一个类的实例是
表示符合其类符合的同一组
协议。

A class is said to conform to a formal protocol if it adopts the protocol or inherits from another class that adopts it. An instance of a class is said to conform to the same set of protocols its class conforms to.

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