To iterate faster on your autolayout use the preview assistant editor.

Click the regular preview editor you would bring up for code against a storyboard

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Then click the Automatic word in the upper lift hand corner of window

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And

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Så mycket bättre! (so much better).

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Also you can then click the ‘+’ sign to dynamically try different phone sizes to see what they look like.

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Now you can tweak without running simulator again and again. Go get em!