如何检查Class(元类对象)对象与另一个类对象相同

Question

ClassCocoa中的对象是元类对象.据我所知,这实际上是Objective-C类,但没有规范.那么如何检查两个类对象之间的相等性呢？

Class a = [@"" class];
Class b = [[NSObject alloc] init] class];

BOOL c = (a == b);  // Is this right?

Answer 1

在NSObject上有一个方法.isKindOfClass

https://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Protocols/NSObject_Protocol/Reference/NSObject.html#//apple_ref/occ/intfm/NSObject/isKindOfClass:

[a isKindofClass:[b class]];

您可以在此处阅读有关objective-c中反射的更多信息

http://osmorphis.blogspot.com/2009/05/reflection-in-objective-c.html