ios runtime 动态向类添加方法

时间：2014-05-13 08:09:05 收藏：0 阅读：412

1、定义C函数：

void dynamicMethodIMP(id self, SEL _cmd)

{

NSLog(@"蜗牛也疯狂");

}

2、重写函数+(BOOL)resolveInstanceMethod:(SEL)sel

+(BOOL)resolveInstanceMethod:(SEL)sel

{

class_addMethod([self class], sel, (IMP)dynamicMethodIMP, "v@:");

return [super resolveInstanceMethod:sel];

}

3、使用：

SEL select = NSSelectorFromString(@"resolveThisMethodDynamically");

[class resolveInstanceMethod:select];

[[class instance] performSelector:select];