title: Get size of UIView after applying CGAffineTransform
body: <p>I was surprised not to find an answer to this question, maybe is something very simple I somehow overlook : </p>
  
  <p>How to get the real size of an UIView after I apply a CGAffineTransform to it?</p>
  
  <p>eg. </p>
  
  <p>my UIView has size 300 x 200, I apply a scaling transform let's say factor 2 both horizontal and vertical, so the UIView now takes 600 x 400 on the screen, but it's bounds and it's layer's bounds are still returning a size of 300 x 200 ... where do I find the real size of the UIView ?</p>
  
  <p>ps. forgot to mention I want to also rotate the uiview. If I apply only scaling CGSizeApplyAffineTransform works great, but when there's also rotation, then it does not work properly.</p>
  
  <p>Edit: drawnonward pointed me in the right direction, I just refined a bit the code to compile and here it is :</p>
  
  <pre><code>UIView* view = (your view being transformed);
  CGAffineTransform trans = (view.transform or create a new transformation);
  
  CGRect rect = [view bounds];
  CGMutablePathRef path = CGPathCreateMutable();
  rect.origin = CGPointZero;
  CGPathAddRect(path , &amp;trans , rect);
  rect = CGPathGetBoundingBox( path );
  CGPathRelease( path );
  </code></pre>
  
  <p>Now rect.size contains the dimensions of the view with the transformation applied 
  Thanks again to drawnonward</p>