Int

Scale a value proportionally to the current screen width. Useful for making designed sizes look proportionally similar on all devices.

For instance, let’s say a certain button was meant to take up 30px of an iPhone 6s screen, but you’d like the width to scale proportionally to an iPhone SE:

>>> 30.scaledToDeviceWidth(baseWidth: 375)
25.6

Convert an Int value representing RGBA color components into red, green, blue, and alpha CGFloat representations.

This is useful for converting something like a HEX representation of a color to RGBA. For instance:

var r: CGFloat!
var g: CGFloat!
var b: CGFloat!
var a: CGFloat!
0xFF000000.toRGBA(&r, &g, &b, &a)
// r = 1, g = 0, b = 0, a = 0