How does Apple show more in the Messages app in Portrait on iPhone 6 Plus?

With the new iPhone 6 Plus, the phone can show more content in the landscape than the regular iPhone 6 or its predecessors. This makes sense, as in the landscape the phone identifies itself as "regular width" for its size class.

However, in a portrait, its "still compact width, regular height for a size class, no matter what iPhone. How does Apple then show more on the iPhone 6 Plus in a portrait when there is no size class to identify it?"

Do they hardcode it based on device width? Doesn't this contradict the whole philosophy of size classes?

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1 answer

They use auto layout to force their labels to use the screen width. There's a good description of how to achieve this in this SO answer .

Apple also used Responsive Layout to implement Landscaping in Mail for 6+.



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