View as doesn't matter. Keep an eye on size classes though; you want to stick to Any:Any 99% of the time. You can see how something looks on multiple device sizes and orientations at once by showing the Assistant Editor and picking an option from there, Preview I think. That lets you add a bunch of devices, rotate them, and switch localization. You can then preview changes across devices easily.

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2016-11-19T21:50:10Z