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IOS遍历未知对象属性和函数

  新建一个类,主要是在写model类的description的时候,经常会用到。

#import <objc/runtime.h>

@implementation NSObject (PropertyListing)   

/* 获取对象的所有属性 */
- (NSDictionary *)properties_aps
{
    NSMutableDictionary *props = [NSMutableDictionary dictionary];   
   unsigned int outCount, i;   
   objc_property_t *properties = class_copyPropertyList([self class], &outCount);   
   for (i = 0; i<outCount; i++)
    {
       objc_property_t property = properties[i];
       const char* char_f =property_getName(property);
       NSString *propertyName = [NSString stringWithUTF8String:char_f];
       id propertyValue = [self valueForKey:(NSString *)propertyName];   
       if (propertyValue) [props setObject:propertyValue forKey:propertyName];   
    }   
   free(properties);   
   return props;   
}   

/* 获取对象的所有方法 */
-(void)printMothList
{
   unsigned int mothCout_f =0;
   Method* mothList_f = class_copyMethodList([self class],&mothCout_f);
   for(int i=0;i<mothCout_f;i++)
    {
       Method temp_f = mothList_f[i];
       IMP imp_f = method_getImplementation(temp_f);
       SEL name_f = method_getName(temp_f);
       const char* name_s =sel_getName(method_getName(temp_f));
       int arguments = method_getNumberOfArguments(temp_f);
       const char* encoding =method_getTypeEncoding(temp_f);
       NSLog(@"方法名:%@,参数个数:%d,编码方式:%@",[NSString stringWithUTF8String:name_s],
                                            arguments,
                            [NSString stringWithUTF8String:encoding]);
    }
   free(mothList_f);
}


@end 
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