Thursday, August 3, 2017 [Tweets] [Favorites]

CwlLayout: a Swift Wrapper Around Auto Layout

Matt Gallagher:

Much of the debate I see around Auto Layout focusses on how it’s cumbersome to implement in code – as opposed to Interface Builder – but all of the 9 constraints would still need to be applied in Interface Builder to achieve this same layout and you’d still need to understand why each of these constraints is necessary.

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The problem is that no matter how you apply them, constraints are not layouts; constraints are building blocks from which we can make layouts but an actual layout requires starting a different way.

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A far better solution for programming a declarative system is to use an API that itself is declarative and builds the whole system as a single composeable expression and rather than constructing individual constraints separately, understands the whole system and can automatically include constraints needed for consistency.

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