title: Using Animations with UILabel
body: <p>I've an array that includes 4 values which will be presented with 2 different <code>UILabel</code>. I'll group the values in pairs. In a specific second the label changes value with another item of pair recursively.</p>
  
  <p>If it's possible, I want to give an animation something like fade out or maybe slide left/right effect. </p>
  
  <p>I've looked some contents already, but nothing meant to me. For example here is a working animation (according to accepted answer):</p>
  
  <pre><code>[UIView animateWithDuration:1.0 delay:0.f options:(UIViewAnimationOptionAutoreverse| UIViewAnimationOptionRepeat)
     animations:^{
     playerScore.alpha=1.f;
     } completion:^(BOOL finished){
     playerScore.alpha=0.f;
     }];
  </code></pre>
  
  <p>I'm not sure where to put this code, in a seperate method or in <code>viewDidLoad</code>.  Can anyone give clues and information? It would be great.</p>