title: iOS: Scaling for different screen sizes with Auto Layout
body: <p>I am programming an app for iPhone and I am using Auto Layout. I understand how @1x, @2x and @3x works, but what I don't understand is how to handle different screen sizes with Auto Layout.</p>
  
  <p>If I want a scene to look good both on iPhone 6+, iPhone 6 and iPhone 5, I need to take into account the very different sizes of each phone.  I can't use the same image size (in points) on all iPhones, because it will look too big on smaller phones, or too small on bigger phones. And I don't even want to imagine the hassle of iPad layout.</p>
  
  <p>How can I solve this? Should I use constraints to make all of my images scale dynamically? This sounds doable, but I'm wondering what the best solution is.</p>
  
  <p>Thank you. I'm really at a loss here.</p>