How to use NSCoding protocol with an enum?

Question

i have this enum:

typedef types {
    HBIntineraryTypeVisited = 0,
    HBIntineraryTypeUnvisited,
    HBIntineraryTypeUnknown,
    HBIntineraryTypeDeleted,
} HBIntineraryType;

and want to store it along with some other variables using the nscoding protocol

- (id)initWithCoder:(NSCoder *)aDecoder
{
    self = [super init];
    if (self) {
       _name = [aDecoder decodeObjectForKey:@"name"];
       // todo decode enum object
    }
}

- (void)encodeWithCoder:(NSCoder *)aCoder
{
    [aCoder encodeObject:_name forKey:@"name"];
    // todo encode enum object
}

What coder method do i use to decode and encode this kind of enum?

Intercontinental

decodeInt/encodeInt (with some casting). – Motorman

Answer 1

Generally speaking the representation of enums can vary. When working with Objective-C, you should use the NS_ENUM macro to be sure of which type is used to represent the enumeration. There's more background in this article.

Rafi

This is the drawback of putting links as answer. You can never tell when they would start showing 404 :( – Sublapsarianism

Most blog articles from Big Nerd Ranch were moved. Here is the new url: bignerdranch.com/blog/enum-num-num – Larghetto