ZKCompoments

Requirements：

ios 11, swift 5.10

Usage

Color

// UIKit: 
self.backgroundColor = UIColor(hexString: "#4B0082")
// swiftUI: 
Color(hexString: "#3498dbff")

Alpha

.alpha is a sugar for colorWithAlphaComponent, internally it does the exact same thing, think of it as a lipstick for your implementation.

let colorWithAlpha = myColor.alpha(0.75)

Gradients

You can easily create gradient layers using the gradient() method on arrays with UIColor. As an extra bonus, you can also add a transform closure if you want to modify the CAGradientLayer.

let gradient = [UIColor.blackColor(), UIColor.orangeColor()].gradient()

let secondGradient = [UIColor.blackColor(), UIColor.orangeColor()].gradient { gradient in
gradient.locations = [0.25, 1.0]
return gradient
}

Image colors

let image = UIImage(named: "My Image")
let (background, primary, secondary, detail) = image.colors()

Num++

保留两位小数

let a = 28.3213123
let b: String  = a.twoDecimalPlacesStr()

String++

url

let str = "https://github.com/"
let url: URL? = str.onlineUrl()

App Info

let name = .appDisplayName
let version = .appVersion

UI

// 屏幕宽度
let width = screenW

// 屏幕高度
let height = screenH

// 当前设备屏幕大小（逻辑点）
Device.current.screenSize

灵感来源

https://github.com/zenangst/Hue https://github.com/Ekhoo/Device https://github.com/yannickl/DynamicColor