Ios-size Class Usage Tutorials

1: It introduces a new concept, discard the traditional meaning we adapt to the so-called specific wide-height size, the screen width and height are divided into two cases: compact-compact, regular-Normal (any-arbitrary, in fact, this is the combination of 2, so I did not divide into 3 cases) 3, that is, regardless of the change, add up to 9.

2:

Iphone4s,iphone5/5s,iphone6,iphone6plus,iphone6s,iphone6s Plus

Vertical screen: (w:compact h:regular)

Horizontal screen: (W:compact h:compact) ( except iphone6plus/iphone6s plus )

Horizontal screen: (W:regular h:compact) ( includes iphone6plus/iphone6s Plus only)

Ipad

Vertical screen: (W:regular h:regular)

Horizontal screen: (W:regular h:regular)

3: For example, the project has a demand when the screen display is not the same. I give an example: when the horizontal screen display only 4 view, when the vertical screen display 5 view. At this point size classes to play its function.

A: First of all, we put four view on the controller and add the corresponding constraint (the default selection of the size class of the controller is Any-any).

The operation model is as follows:

B: I need to customize the vertical screen when a view is displayed in the middle of the controller, first set the size class to c-c. The operation model is as follows:

C: The effect of the demonstration diagram

Ios-size Class Usage Tutorials