Hi, I tried to encode the CAlayer, but when decoding, all the info of
the layer its lost.
dunno what happened, the other info of the object it's good.
G
On 13.12.2008, at 6:16, Michael Ash wrote:
On Fri, Dec 12, 2008 at 3:43 PM, Gustavo Pizano
<gustavxcodepic...@gmail.com> wrote:
Hello. I want to send the following an object in a drag-n-drop
operation, so
I need to transform it to a NSData
so I have this object
@interface Ship : NSObject <NSCoding> {
int size;
int impacts;
ShipLocation * location;
CALayer * shipImageLayer;
}
now, I was reading that I must implement <NSCoding> and implement the
-(id)initWithCoder:(NSCoder *)coder and -(void)encodeWithCoder:
(NSCoder
*)coder methods, so far so good,
then I can use the encodeObject: forKey method of NSCoder class.
so I will
have the following
-(id)initWithCoder:(NSCoder *)coder
{
[coder encodeInt:size forKey:@"size"];
[coder encodeInt:impacts forKey:@"impacts"];
}
but after I dunno how to code the location and the shipImageLayer?
I guess
ShipLocation should implement <NSCoding> also and encode its
attributes,
but in shipLocation there is also a CALayer, so I still have the
question on
how to do it with a CALayer.
When you get to an object, you can simply encode it using [coder
encodeObject:obj forKey:@"key"]. Of course obj must implement NSCoding
as well, otherwise this will not work. For your own classes, you'll
need to implement NSCoding for everything that will get encoded.
CALayer already implements NSCoding so there's nothing tricky for that
one.
Mike
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