How to add support for Landscape mode in existing app

Question

I have implemented an iOS application for both iPhone & iPad , supports only in Portrait mode with OS iOS 7 & above. Now I need to add support for Landscape as well, and I do not have much knowledge on Auto layout and Size Class . Do I need to create separate xib's for Landscape mode? Please share your best suggestions and thoughts.

Answer 1

Please have a look into attached screenshot for how to use SizeClass for design view in Portrait and Landscape Mode.

Have a look into this image for more clarification.

Answer 2

Follow the steps below to add support for navigation 1) In project navigator tab, select your project 2)then select general tab and in Deployment info select checkboxes for device orientation (landscape left and landscape right.) If you dnt wanna use size classes you can go with Autolayout. https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/AutolayoutPG/Introduction/Introduction.html