SwiftDevHints 2.4.0

SwiftDevHints 2.4.0

×

TestsTested✓
Lang语言 SwiftSwift
许可证 MIT
Released最后发布2020年3月
SPM支持 SPM✗

由 Derek Coder 维护。

SwiftDevHints 2.4.0

  • 作者：
  • derekcoder

Version License Platform

要求

  • iOS 10.0+ / macOS 10.12+
  • Swift 5

安装

Tapticc 可通过 CocoaPods 获得。为了安装它，只需将以下行添加到您的 Podfile 中即可：

pod 'SwiftDevHints'

用法

  • 字符串扩展
  • 集合可选扩展
  • 可选扩展
  • 集合扩展
  • UITableView 扩展
  • UserDefaults 扩展
  • UIColor 扩展
  • Bundle 扩展
  • 日期扩展

字符串扩展

返回字符串切片的安全方式

let string = "Hello, Swift!"
string[safe: 0..<5]  // "Hello"
string[safe: 0...4]  // "Hello"
string[safe: 0..<14] // nil

intBaseHex 从十六进制字符串获取整数值

print("FF".intBaseHex)  // 255
print("0xFF".intBaseHex)  // 255

trimmed()

" hello world \n\t".trimmed()  // "hello world"

trimming()

var string = " hello world \n\t"
string.trimming()
string  // "hello world"

isBlank

" \n\t ".isBlank  // true

nilIfEmpty

"".nilIfEmpty  // nil

收藏-可选扩展

isNilOrEmpty

"".isNilOrEmpty  // true
([] as? [String]).isNilOrEmpty  // true

可选扩展

isNone 和 isSome

"hello".isNone  // false
"hello".isSome  // true

var name: String? = nil
name.isNone  // true
name.isSome  // false

noneDo 和 someDo

var name: String? = nil

name.noneDo {
    print("name is nil")
}

name.someDo {
    print("name has a value \($0)")
}

收藏-扩展

在指定索引处返回元素的安全方式

let animals = ["Zebra", "Giraffe", "Tiger"]
let zebra = animals[safe: 0] // "Zebra"
let lion = animals[safe: 3] // nil

UITableView-扩展

注册与队列 UITableViewCell

class UserCell: UITableViewCell, NibReusable { }

tableView.register(UserCell.self)
let cell: UserCell = tableView.dequeueReusableCell(for: indexPath)

UICollectionView-扩展

注册与队列 UICollectionViewCell

class PhotoCell: UICollectionViewCell, NibReusable { }

collectionView.register(PhotoCell.self)
let cell: PhotoCell = collectionView.dequeueReusableCell(for: indexPath)

NSUserDefaults-扩展

使用 UserDefaults 的安全方式

extension UserDefaults.Name {
    static let username: UserDefaults.Name = "SwiftDevHints-Demo.Username"
    static let password: UserDefaults.Name = "SwiftDevHints-Demo.Password"
}

// Register Initial Value
UserDefaults.standard.register(defaults: [.username: "Unknown"])

// Set Value
UserDefaults.standard.set("Derek", forName: .username)
UserDefaults.standard.set("12345", forName: .password)

// Get Value
let username = UserDefaults.standard.string(forName: .username)
let password = UserDefaults.standard.string(forName: .password)

UIColor 扩展

使用基于 255 的 RGB 初始化 UIColor

let color = UIColor(red: 255, green: 32, blue: 171)

使用 RGB 十六进制字符串初始化 UIColor

let color = UIColor(hexString: "FF20AB")

创建与指定颜色对比的黑或白 UIColor 对象。

let color = UIColor(constrastingBlackOrWhiteColorOn: UIColor.green)

获取此颜色的十六进制值字符串（以“#”开头）

let hexString = UIColor.red.hexString // #FF0000

获取 RGB 或 HSBA 分量

let rgb = UIColor.red.rgbComponents // (red: 255, green: 0, blue: 0)
let rgba = UIColor.red.rgbaComponents // (red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)
let hsba = UIColor.red.hsbaComponents // (hue: 0.0, saturation: 1.0, brightness: 1.0, alpha: 1.0)

获取随机颜色

let randomColor = UIColor.random

Bundle 扩展

简便方法访问 Info.plist 文件

let bundle = Bundle.main

let displayName = bundle.displayName
let identifier = bundle.identifier
let version = bundle.version
let build = bundle.build

// All keys
private enum InfoPlistKey: String {
case name = "CFBundleName"
case displayName = "CFBundleDisplayName"
case developmentRegion = "CFBundleDevelopmentRegion"
case identifier = "CFBundleIdentifier"
case version = "CFBundleShortVersionString"
case build = "CFBundleVersion"
case packageType = "CFBundlePackageType"
}

Date 扩展

一些便捷的方法

let today = Date()                   // December 17, 2017 at 5:54:46 PM GMT+8
let startOfToday = today.startOfDay  // December 17, 2017 at 12:00:00 AM GMT+8
let endOfToday = today.endOfDay      // December 17, 2017 at 11:59:59 PM GMT+8
let previousDay = today.previousDay  // December 16, 2017 at 5:54:46 PM GMT+8
let nextDay = today.nextDay          // December 18, 2017 at 5:54:46 PM GMT+8

// December 14, 2017 at 5:54:46 PM GMT+8
// December 15, 2017 at 5:54:46 PM GMT+8
// December 16, 2017 at 5:54:46 PM GMT+8
let last3Days = today.lastDays(withCount: 3, includingToday: false)

// December 17, 2017 at 5:54:46 PM GMT+8
// December 18, 2017 at 5:54:46 PM GMT+8
// December 19, 2017 at 5:54:46 PM GMT+8
let next3Days = today.nextDays(withCount: 3, includingToday: true)

参考

作者

许可

SwiftDevHints 在 MIT 许可下发布。详细信息请参阅 LICENSE 文件 See LICENSE。