Question

i have this code for receiving score when Player touch an object:

- (void)  match:(GKMatch *)match
 didReceiveData:(NSData *)data
     fromPlayer:(NSString *)playerID{



    NSString *incomingDataAsString =
    [[NSString alloc] initWithData:data
                          encoding:NSUTF8StringEncoding];

    NSString *existingText = score.text;

    NSString *finalText =
    [existingText stringByAppendingFormat:@"Pasc = %@",
     incomingDataAsString];

    [self.score setText:finalText];

    [incomingDataAsString release];

}

But, as result, my score shows like that: “Pasc = 123456”, how can I make it to show, single digit increasing. (Replacing number 1 with 2, and 2 with 3..

Thanks.

Answer 1

Please try the following, hope it help.

   NSRange range = NSMakeRange(0, [incomingDataAsString length]); // 0 is -->x<-- position 0
    NSString *finalText = [existingText stringByReplacingCharactersInRange:range withString:[NSString stringWithFormat:@"%@",incomingDataAsString];

    [self.score setText:finalText];

I forgot that we can do like this, you mentioned that, just remove “Pasc =”, and concern only @”%@”, then just

[self.score setText:incomingDataAsString];  

Please give me a feedback, so I understand what’s happen, then I can edit my code to help you :), thanks.