title: UIActivityIndicator not working properly?
body: <p>I have a problem regarding UIActivityIndicator. I applied <code>[spinner startAnimating]</code> at the IBAction on a button and then doing some process. After the process activityindicator should be stopped and then navigate to another view. But the activity indicator does not appear. When I remove the line "[spinner stopAnimating]" then the indicator appears but not at the instant button is pressed. It appears just before the other view loads, and apparently does not appear, I mean it does not appear but if we see very carefully then only it appears for an instant.</p>
  
  <p>Thanx in advance for any answer.</p>