NSUserDefaults存儲顏色

@interface NSUserDefaults (Color)

- (void)setColor:(NSColor *)theColor forKey:(NSString *)key;

- (NSColor *)colorForKey:(NSString *)key;

@end

@implementation NSUserDefaults (Color)

- (void)setColor:(NSColor *)theColor forKey:(NSString *)key {

    NSData *data = [NSKeyedArchiver archivedDataWithRootObject:theColor];

    [self setObject:data forKey:key];

}

- (NSColor *)colorForKey:(NSString *)key {

    NSData *data = [self dataForKey:key];

    return [NSKeyedUnarchiver unarchiveObjectWithData:data];

}

@end