如何检查UIViewController是否属于目标c中的特定子类？ [英] How to check if a UIViewController is of a particular sub-class in objective c?

问题描述

我希望能够检查UIViewController的类型，看看它是否属于某种类型

I want to be able to check the type of a UIViewController to see if it is of a certain type like this

c code

if (typeof(instance1) == customUIViewController) 
{
  customUIViewController test = (customViewController)instance1;

  // do more stuff
}

推荐答案

isKindOfClass：方法指示对象是给定类的实例还是该类的子类的实例。

The isKindOfClass: method indicates whether an object is an instance of given class or an instance of a subclass of that class.

if ([instance1 isKindOfClass:[CustomUIViewController class]]) {
    // code
}

如果要检查对象是否是给定类的实例（但不是a的实例）该类的子类），改为使用 isMemberOfClass：。

If you want to check whether an object is an instance of a given class (but not an instance of a subclass of that class), use isMemberOfClass: instead.

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