Objective-C对象的列表选择器 [英] List selectors for Objective-C object

问题描述

我有一个对象，我想列​​出它响应的所有选择器.感觉这完全有可能，但是我在查找API时遇到了麻烦.

I have an object, and I want to list all the selectors to which it responds. It feels like this should be perfectly possible, but I'm having trouble finding the APIs.

推荐答案

这是基于运行时C函数的解决方案:

This is a solution based on the runtime C functions:

class_copyMethodList返回可从对象获取的给定Class对象的类方法列表.

class_copyMethodList returns a list of class methods given a Class object obtainable from an object.

#import <objc/runtime.h>

[..]

SomeClass * t = [[SomeClass alloc] init];

int i=0;
unsigned int mc = 0;
Method * mlist = class_copyMethodList(object_getClass(t), &mc);
NSLog(@"%d methods", mc);
for(i=0;i<mc;i++)
    NSLog(@"Method no #%d: %s", i, sel_getName(method_getName(mlist[i])));

/* note mlist needs to be freed */

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