Objective- C - Looping through all properties in a class?

Question

Is there a way to loop through all properties in an object and get their \"name\" and \"value\".

I am trying to write a category to serialize objects to a string, ba

Answer 1

I use the following Category on NSObject to say, for example, NSLog(@"%@", [someObject propertiesPlease]);, resulting in a log entry like…

someObject: {
    color = "NSCalibratedRGBColorSpace 0 0 1 1";
    crayon = Blueberry;
}

NSObject+Additions.h

@interface NSObject (Additions)
- (NSDictionary *)propertiesPlease;
@end

NSObject+Additions.m

@implementation NSObject (Additions)
- (NSDictionary *)propertiesPlease {
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];
   NSString *propertyName = [[NSString alloc] initWithCString:property_getName(property)];
   id propertyValue = [self valueForKey:(NSString *)propertyName];
   if (propertyValue) [props setObject:propertyValue forKey:propertyName];
}
   free(properties);
   return props;
}
@end