I'm updating an app to iOS7/8, and applying autolayout features.
In my `UIViewController` I have a few `UIViews` whose position should be modified as a `UIScrollView` updates its `contentOffset`.

When I update the `UIView's` frame (old way), I get some glitches and errors because of the controller autolayout constraints (I am using VFL for setting constraints programatically, I don't have a storyboard).

So the question is: which is the right/best way to move `UIViews` in a controller that implements Autolayout?
Maybe updating constraints? Should I use Core Animation to make any `UIView` move?

Thanks in advance!