Any other method to resize views, other than Auto-layout

I am building an app, exclusively for iPhones and it only has a Portrait view. I have never used autolayout before and I don't think I have time to learn it now. Can I use anything else, to have my views resize themselves for the devices(iphone 4s, 5/5s, 6/6+)?

Solution

Remove the autolayout and sizeclasses

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And use autoresizing form utilities

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You can also do it by code :

view.autoresizingMask = (UIViewAutoresizingFlexibleWidth |    
                              UIViewAutoresizingFlexibleLeftMargin);