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PONSTimer time increment
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copied!<p>I'm a beginner in obj-C for iOS platform and am trying to build a few simple project to build my foundation.</p> <p>I have a button which increase the NSTimer time for the label, but when I use NSLog to log the time, it uses the value before time increment was implemented. I need to be able to log a updated time (after increment), as I require that value and am implementing more function into the IBAction after I solve this portion.</p> <p>E.g at 15min I press, the NSLog will read it as "00:15:00.0" rather than "00:35:00.0".</p> <pre><code>- (IBAction)onSkipPressed:(id)sender { startDate = [startDate dateByAddingTimeInterval:-1200]; NSLog(@"%@",self.timeLabel.text); } </code></pre> <p>Any one know the reason for this issue? And how should I solve it such that NSLog will read it as "00:35:00.0" if I invoke this IBAction at 15min. </p> <p>EDIT - The start button will start the timer and timeLabel will get the string. Sorry for missing out such a important detail. I don't think there are any other code in the project which is related to this functionality already. Thank you for pointing it out to me.</p> <pre><code>- (void)updateTimer { NSDate *currentDate = [NSDate date]; NSTimeInterval timeInterval = [currentDate timeIntervalSinceDate:startDate]; NSDate *timerDate = [NSDate dateWithTimeIntervalSince1970:timeInterval]; NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setDateFormat:@"HH:mm:ss.S"]; [dateFormatter setTimeZone:[NSTimeZone timeZoneForSecondsFromGMT:0.0]]; NSString *timeString=[dateFormatter stringFromDate:timerDate]; timeLabel.text = timeString; } </code></pre> <p>my IBAction to fire the timer</p> <pre><code>- (IBAction)onStartPressed:(id)sender { startDate = [NSDate date]; gameTimer = [NSTimer scheduledTimerWithTimeInterval:1.0/10.0 target:self selector:@selector(updateTimer) userInfo:nil repeats:YES]; //hide start button and show timeLabel startButton.hidden=true; timeLabel.hidden=false; } </code></pre>

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