NSMutableDictionary & NSKeyedArchiver

    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

    NSString *documentsDirectory = [paths objectAtIndex:0];

    NSString *path = [documentsDirectory stringByAppendingPathComponent:@"raw"];

    

    NSMutableDictionary *data = [[[NSMutableDictionary alloc]init]autorelease];

    [data setObject:[NSString stringWithFormat:@"aaa"] forKey:@"aaaKey"];

    [data setObject:[NSString stringWithFormat:@"bbb"] forKey:@"bbbKey"];

    [NSKeyedArchiver archiveRootObject:data toFile:path];

    

    NSMutableDictionary *data = [NSKeyedUnarchiver unarchiveObjectWithFile:path];

    NSLog(@"aaaKey : %@\n",[data objectForKey:@"aaaKey"]);

    NSLog(@"bbbKey : %@\n",[data objectForKey:@"bbbKey"]);