title: NSTimer memory leak?
body: <p>Will the following cause a memory leak or could it be changed to be better somehow? With the <code>countDownTimer = nil</code> being removed</p>
  
  <pre><code>-(void)viewDidLoad{    
    countDownTimer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(loadNewTime:) userInfo:nil repeats:YES];
  }
  
  -(void)pauseTimer{            
     NSLog(@"Fired");
     [countDownTimer invalidate];
     //countDownTimer = nil &lt;------ Causes crash when run
  }
  
  -(void)resumeTimer{
     countDownTimer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(loadNewTime:) userInfo:nil repeats:YES];
  }
  </code></pre>