Question

I have a label timer inside a UITableViewCell, using this code

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell = [[UITableViewCell alloc]init];

    timeLabel = [[UILabel alloc]initWithFrame:CGRectMake(55, 26, 280, 25)];
    timeLabel.text = [timeArray objectAtIndex:indexPath.row];
    timeLabel.backgroundColor = [UIColor clearColor];
    timeLabel.textColor = [UIColor blackColor];

    [cell.contentView addSubview:timeLabel];
    return cell;
    NSLog(@"Title %@, time %@, second %@, time %i, tag %d", titleArray, timeArray, secondArray, time, button.tag);
}

And I have a timer that trigger by a button using this code

- (void)onoffBtn:(id)sender
{
    countdownTimer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(timerElapsed:) userInfo:nil repeats:YES];
}

- (void) timerElapsed:(id)timer
{
    if (time == 0)
    {
        [countdownTimer invalidate];
    }
    // this part only code for counting down timer
    NSLog(@"%d:%d:%d", hour , minute, second);
}

If I put timeLabel.text = [NSString stringWithFormat:@"%d:%d:%d", hour , minute, second]; inside timerElapsed, of course it wont update my label inside cell.

So how do I update my label inside cell for every second?

Answer 1

Put timeLabel.text = [NSString stringWithFormat:@"%d:%d:%d", hour , minute, second]; inside cellForRowAtIndexPath and call reloadData method of your tableview inside timerElapsed.

I believe your hour, minute and second contain updated value.