title: How to enable "AutoLayout" of iOS 6 programmatically?
body: <p>How can I enable "AutoLayout" programmatically. Actually I have to create an app which should run on iOS6 and iOS5 but we can enable "AutoLayout" in the XIB in iOS 6 only and it will not work on the iOS 5 so I am checking the iOS version and using if else condition for the appropriate task according to the iOS. So if app would be running on iOS 6, I will enable the AutoLayout otherwise I will write the code for AutoResizing. Please let me know if I am unclear at any point.</p>