iOS Archiving CMAcceleration and CMRotationRate

[Olbert000]

I am attempting to archive my class OCFrame which has two members, using NSKeyedArchiver.

@interface OCFrame : NSObject <NSCopying> {
CMAcceleration acc;
CMRotationRate rot;
}

I tried using both:

[coder encodeObject:rot forKey"rot"];

and:

[coder encodeValueOfObjCTypeencode(CMAcceleration) at:&acc];

and their corrasponding decode functions. It seems that NSKeyedArchiver cannot deal with structs.

How do I archive these?

 

[hayesk]

You can only archive objects. I think you can put the structs into a dictionary using encodeFloat:forKey encodeInt:forKey, etc. on the components of your structs. Or write them to an NSData object.