Xcode 4.5 release notes say
“The Interface Builder canvas has a new button for switching between iPhone screen layouts. When you click the button, Xcode changes the size of the full-screen view to match the iPhone screen size. When the top-level dimensions change, Xcode uses the resizing rules specified by layout restrictions, or springs and struts in the size inspector to pay for hidden views.
Use this button to switch between layouts and make sure that the resizing rules work correctly, both on the new Retina 4 screen and on previous screen sizes.
Thus, this probably fixes the issue when setting up screen layouts with the new longer iPhone5 screen. However, I can not find this button. Any help guys?
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