首先奉上demo的地址
https://github.com/MyHZ/HZCoding.git
还有 pod 'NSObject+HZCoding'
接下来直接上代码了
新建一个类别
NSObject+HZCoding
然后声明和实现如下方法
1.获取对象的所有属性
/* 获取对象的所有属性 */
-(NSArray *)getAllProperties
{
u_int count;
// 传递count的地址过去 &count
objc_property_t *properties =class_copyPropertyList([self class], &count);
//arrayWithCapacity的效率稍微高那么一丢丢
NSMutableArray *propertiesArray = [NSMutableArray arrayWithCapacity:count];
for (int i = 0; i < count ; i++)
{
//此刻得到的propertyName为c语言的字符串
const char* propertyName =property_getName(properties[i]);
//此步骤把c语言的字符串转换为OC的NSString
[propertiesArray addObject: [NSString stringWithUTF8String: propertyName]];
}
//class_copyPropertyList底层为C语言，所以我们一定要记得释放properties
// You must free the array with free().
free(properties);
return propertiesArray;
}
- 获取对象的所有方法
/* 获取对象的所有方法 */
-(NSArray *)getAllMethods
{
unsigned int methodCount =0;
Method* methodList = class_copyMethodList([self class],&methodCount);
NSMutableArray *methodsArray = [NSMutableArray arrayWithCapacity:methodCount];
for(int i=0;i<methodCount;i++)
{
Method temp = methodList[i];
const char* name_s =sel_getName(method_getName(temp));
int arguments = method_getNumberOfArguments(temp);
const char* encoding =method_getTypeEncoding(temp);
NSLog(@"方法名：%@,参数个数：%d,编码方式：%@",[NSString stringWithUTF8String:name_s],
arguments,
[NSString stringWithUTF8String:encoding]);
[methodsArray addObject:[NSString stringWithUTF8String:name_s]];
}
free(methodList);
return methodsArray;
}
3.获取对象的所有属性和属性内容
/* 获取对象的所有属性和属性内容 */
-(NSDictionary *)getAllPropertiesAndVaules
{
NSMutableDictionary *propsDic = [NSMutableDictionary dictionary];
unsigned int outCount;
objc_property_t *properties =class_copyPropertyList([self class], &outCount);
for ( int 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) {
[propsDic setObject:propertyValue forKey:propertyName];
}
}
free(properties);
return propsDic;
}
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一句话 利用runtime轻松实现 归档解档：http://www.jianshu.com/p/14d0190a83d5
