The classes NSKeyedArchiver
and NSKeyedUnarchiver
allow us to persist data in a very Object-oriented way. By conforming to the NSCoding
protocol, we can tell the archiver how to pack and unpack any of our classes. In this recipe, we will be packing up a character who has a number of Dungeons and Dragons style attributes.
Please refer to the project RecipeCollection01 for full working code of this recipe. Also note that some of the following code has been omitted for brevity.
Execute the following code:
//SimpleCharacter.h @interface SimpleCharacter : NSObject <NSCoding> { NSString *charColor; NSString *charClass; int strength; int dexterity; int constitution; int intelligence; int wisdom; int charisma; } @property (readwrite, assign) NSString *charColor; @property (readwrite, assign) NSString *charClass; @property (readwrite, assign) int strength; /* CODE OMITTED */ @end @implementation SimpleCharacter @synthesize...