There are two types of iOS developer in the world: those who use Auto Layout, and people who like wasting time. It has bit of a steep learning curve (and we didn't even use the hard way of adding constraints!), but it's an extremely expressive way of creating great layouts that adapt themselves automatically to whatever device they find themselves running on – now and in the future.
Most people recommend you do as much as you can inside Interface Builder, and with good reason – you can drag lines about until you're happy, you get an instant preview of how it all looks, and it will warn you if there's a problem (and help you fix it.) But, as you've seen, creating constraints in code is remarkably easy thanks to the Visual Format language and anchors, so you might find yourself mixing them all to get the best results.
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Paul Hudson is the creator of Hacking with Swift, the most comprehensive series of Swift books in the world. He's also the editor of Swift Developer News, the maintainer of the Swift Knowledge Base, and Mario Kart world champion. OK, so that last part isn't true. If you're curious you can learn more here.
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