title: Stop and Reset NSTimer
body: <p>I have a simple timer using that is activated with a button is pushed. It runs from 60 to 0 no problem but what I want is to stop and reset the timer on push button. I have managed to stop it when the button is pressed using the code below but for some reason cannot get it to reset and stop at 60. This should be simple but it isn't working. Any suggestions?</p>
  
  <p><strong>Timer is set using simple Action</strong></p>
  
  <pre><code>- (IBAction)timerStart:(id)sender {
  
  if(!secondCounter == 0){
          [countdownTimer invalidate];
      }
      else {
             [self setTimer];
       }
  }
  </code></pre>
  
  <p><strong>CODE FOR TIMER</strong></p>
  
  <pre><code>- (void)timerRun {
      secondCounter = secondCounter - 1;
      int minutes = secondCounter;
  
      NSString *timerOutput = [NSString stringWithFormat:@"%d", minutes ];
      countDownLabel.text = timerOutput;
  
      if(secondCounter == 0){
          [countdownTimer invalidate];
          countdownTimer = nil;
      }
  }
  
  - (void)setTimer {
      secondCounter = 60;
      countdownTimer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(timerRun) userInfo:nil repeats:YES];
  
  }
  </code></pre>