title: Objective C moving Labels
body: <p>I am working on a game project, and what i want to do is moving a group of labels in a window, from top of the screen to the bottom, let user read these labels, and fade away (like labels sliding from top to bottom without any trigger).</p>
  
  <p>I thought that a timer variable in a loop would help me slide and change their position according to the timer value.</p>
  
  <p>I made some research but if you share an article with me, i can know what i should look up for.</p>
  
  <p>Thank you.</p>