This repository contains useful extensions on Foundation, UIKit and SwiftUI
Combination of @dynamicMemberLookup with KeyPathes and callAsFunction
let label = UILabel()~
.text("Text")
.textColor(.red)
.font(.system(24))
.apply()Date struct provides very little functionality, any operations with dates must be implemented through Calendar in very unintuitive, complex and difficult to remember ways.
To simplify operations with dates, this library provides a simple and intuitive syntax.
let afterTomorrow: Date = .today + 2.days
//or .today + .days(2)
//or Date.today.adding(2 * .day)
let difference = date2 - date1
let daysBetweenDates = difference.days
//or date2.interval(of: .day, from: date1)
let weeksBetweenDates = difference.weekslet hours = Date().component(.hour)
//or Date().hour()
let someDate = Date(year: 1994, month: 10, day: 4) let startOfMonth = Date().start(of: .month)
let lastMonth = Date().end(of: .year)
let lastDay = Date().end(of: .year, accuracy: .day)
let nextYear = Date().next(.year)
let nextLeapYear = Date().nearest([.month: 2, .day: 29], in: .future)?.start(of: .year)let monthLenght = Date().count(of: .day, in: .month)
for month in (date1...date2).each(.month) {...}let weekdayName = Date().name(of: .weekday)
if let date = Date(from: dateString, format: "dd.MM.yyyy") {...}
let dateString = Date().string("dd.MM.yyyy")
let iso860String = Date().iso860
let defaultDateString = Date().string(date: .long, time: .short)
let relativeDateString = Date().string("dd.MM.yyyy",
relative: [
.day(1): "Tomorrow",
.day(0): "Today, HH:mm",
.day(-1): "Yesterday",
.week(0): "EEEE",
.year(0): "dd.MM"
]
)Any function contains additional parameters with default values such as:
calendar: Calendar = .default
locale: Locale = .default
timezone: TimeZone = .defaultwhere Calendar.default, Locale.default and TimeZone.default - static variables that you can change.
So you can use custom Calendar in each function
let dayOfMonth = Date().position(of: .day, in: .month, calendar: customCalendar)Or you can set your own default value for all functions
Calendar.default = customCalendarArrayBuilder<T>- result builder to create arraysComposeBuilderSingleBuilder
Easy integration UIKit elements to SwiftUI code.
This realization uses @autoclosures in order to avoid UIView re-creation. § operator creates UIKitView, UIKitView supports chaining to update UIView. .uiKitViewEnvironment modifier allows to set UIViews properties as environments via chaining.
@State var text: String
let textColor: Color
var body: some View {
VStack {
Text(text)
.foregroundColor(textColor)
UILabel()§
.text(text)
.contentPriority.horizontal.compression(.required)
UIKitView {
UILabel()
} update: { label, context in
label.text = text
}
UIImageView()
}
.uiKitViewEnvironment(for: UILabel.self)
.textColor(textColor.ui)
.tintColor(.red)
}SwiftUI like syntaxis for UIKit via function builders and chaining
class YourView: LtView {
@SubviewsBuilder
override func layout() -> [SubviewProtocol] {
UIStackView(.vertical) {
UILabel()~
.textColor(.black)
.font(.systemFont(ofSize: 20))
someView {
someImageView~
.image(someImage)
}
Text("SubviewsBuilder supports SwiftUI views too")
}
}
}VDLayout is good for use with ConstraintsOperators, just need make Constraints<Item> impelemts SubviewProtocol
UIView {
label
.height(30)
.width(someView.width / 2 + 10)
.centerX(0)
.edges(.vertical).equal(to: 10)
}view.environments.someValue = 0
extension UIViewEnvironment {
var someValue: Int {
get { self[\.someValue] ?? 0 }
set { self[\.someValue] = newValue }
}
}Create a Package.swift file.
// swift-tools-version:5.0
import PackageDescription
let package = Package(
name: "SomeProject",
dependencies: [
.package(url: "https://github.com/dankinsoid/VDKit.git", from: "1.193.0")
],
targets: [
.target(name: "SomeProject", dependencies: ["VDKit"])
]
)$ swift builddankinsoid, voidilov@gmail.com
VDAnimation is available under the MIT license. See the LICENSE file for more info.