“Any” size class missing in Xcode 8

Question

I\'m a little confused when seeing the new interface builder\'s size class options in Xcode 8 beta. I used to build my apps\' UI by first design them in \"Any\" size class a

Answer 1

The UI to select the size classes has changed in xcode 8. Now it is as follows:

Any constraints that you add without selecting Vary for Traits options will be considered as for all the size classes( Any Any previously)

To add a constraint to a specific size class add it by selecting:

• The device at the bottom and by selecting Vary for Traits options of that size class.
• When you are adding constraints to a specific size class the bar turns blue as below

Answer 2

To convert from the old Any by Any to the new Trait layout, go through each of your View Controllers and update all frames.

Answer 3

The way to do this has changed slightly in the new version of Xcode. It should build for "any-any" automatically. Have a look at this WWDC video that I think explains it in detail. There is also a part 2, so watch that if you need to.

https://developer.apple.com/videos/play/wwdc2016/222/

Hope I could help,
Zack