OBJC类扩展之属性字典NSObject+Property

Posted 2020-07-26 山里的和尚会玩水

#import <Foundation/Foundation.h>
#import <objc/runtime.h>
@interface NSObject (Property)
//将对象属性封装到字典，并返回字典
-(NSDictionary *)propertyDictionary;
@end




@implementation NSObject (Property)
-(NSDictionary *)propertyDictionary
{
    //创建可变字典
    NSMutableDictionary *dict = [NSMutableDictionary dictionary];
    unsigned int outCount;
    objc_property_t *props = class_copyPropertyList([self class], &outCount);
    for(int i=0;i<outCount;i++){
        objc_property_t prop = props[i];
        NSString *propName = [[NSString alloc]initWithCString:property_getName(prop) encoding:NSUTF8StringEncoding];
        id propValue = [self valueForKey:propName];
        if(propValue){
            [dict setObject:propValue forKey:propName];
        }
    }
    free(props);
    return dict;
}
@end