Suitable for related--autolayout---sizeclass

AutoLayout

W:any H:any is the default choice when we first set up the project.

The corresponding device screen mode is as follows:

Iphone4s,iphone5/5s,iphone6

Vertical screen: (w:compact h:regular)

Horizontal screen: (W:compact h:compact)

IPhone6 Plus

Vertical screen: (w:compact h:regular)

Horizontal screen: (W:regular h:compact)

Ipad

Vertical screen: (W:regular h:regular)

Horizontal screen: (W:regular h:regular)

------"NOTE:

• If the item does not support horizontal display, use W:compact h:regular (or simply cancel using size Class)

• If the project supports horizontal screen display, use W:compact h:regular+w:any h:compact

• For some public constraints (applicable in any combination), they are generally set in the W:any H:any

• ipad in the same vein

Suitable for related--autolayout---sizeclass