Solo

aspectRatio

/// 1:1
View().aspectRatio()

/// 1:1 low priority
View().aspectRatio(priority: .defaultLow)

/// 4:3
View().aspectRatio(4 / 3)

/// 4:3 low priority
View().aspectRatio(priority: .defaultLow)

width

/// 100pt
View().width(100)

/// Stateable width
@State var width: CGFloat = 100

View().width($width)

/// Stateable but based on different type
@State var expanded = false

View().width($expanded.map { $0 ? 200 : 100 })

/// Different value for different devices
/// 80pt for iPhone5, 120pt for any iPad, 100pt for any other devices
View().width(100 !! .iPhone5(80) !! .iPad(150))

height

/// 100pt
View().height(100)

/// Stateable width
@State var height: CGFloat = 100

View().height($width)

/// Stateable but based on different type
@State var expanded = false

View().height($expanded.map { $0 ? 200 : 100 })

/// Different value for different devices
/// 80pt for iPhone5, 120pt for any iPad, 100pt for any other devices
View().height(100 !! .iPhone5(80) !! .iPad(150))

size

/// width 100pt, height 100pt
View().size(100)

/// width 100pt, height 200pt
View().size(100, 200)

/// Stateable
@State var width: CGFloat = 100
@State var height: CGFloat = 100

View().size($width, 200)
View().size(100, $height)
View().size($width, $height)

/// for both
@State var size: CGFloat = 100
View().size($size)

/// Stateable but based on different type
@State var expanded = false

View().size($expanded.map { $0 ? 200 : 100 })
View().size(100, $expanded.map { $0 ? 200 : 100 })
View().size(100 !! .iPad(200), $expanded.map { $0 ? 200 !! .iPad(300) : 100 !! .iPad(200) })
View().size($width, $expanded.map { $0 ? 200 : 100 })
View().size($expanded.map { $0 ? 200 : 100 }, 100)
View().size($expanded.map { $0 ? 200 : 100 }, $height)

Read and write view's solo constraints directly. And even animate them.

let v = View()
v.width = 100
v.height = 100
UIViewPropertyAnimator(duration: 0.5, curve: .easeInOut) {
    v.width = 200
    v.height = 300
}.startAnimation()

Super

edges

/// all edges to superview 0pt
View().edgesToSuperview()

/// all edges to superview 16pt
View().edgesToSuperview(16)

/// horizontal edges: 16pt, vertical edges: 24pt
View().edgesToSuperview(16, 24)

/// horizontal edges: 16pt
View().edgesToSuperview(h: 16)

/// vertical edges: 24pt
View().edgesToSuperview(v: 24)

/// each edge to different value to superview
View().edgesToSuperview(top: 24, leading: 16, trailing: -16, bottom: -8)

top

/// 16pt to top of superview
View().topToSuperview(16)

/// 16pt to safeArea top of superview
View().topToSuperview(16, safeArea: true)

/// Stateable
@State var top: CGFloat = 16

View().topToSuperview($top)

/// Stateable but based on different type
@State var expanded = false

View().topToSuperview($expanded.map { $0 ? 0 : 16 })

leading

/// 16pt to leading of superview
View().leadingToSuperview(16)

/// all the same as with topToSuperview

trailing

/// -16pt to trailing of superview
View().trailingToSuperview(-16)

/// all the same as with topToSuperview

bottom

/// -16pt to bottom of superview
View().leadingToSuperview(-16)

/// all the same as with topToSuperview

centerX

/// right in center of superview horizontally
View().centerXInSuperview()

/// 16pt from horizontal center of superview
View().centerXToSuperview(16)

/// all the same as with topToSuperview

centerY

/// right in center of superview vertically
View().centerYInSuperview()

/// 16pt from vertical center of superview
View().centerYToSuperview(16)

/// all the same as with topToSuperview

center

/// right in center of superview both horizontally and vertically
View().centerInSuperview()

/// 16pt from horizontal center of superview, 8pt from vertical center of superview
View().centerInSuperview(x: 16, y: 8)

/// all the same as with topToSuperview

width

/// equal width with superview
View().widthToSuperview()

/// equal width with superview with low priority
View().widthToSuperview(priority: .defaultLow)

/// half width of superview
View().widthToSuperview(multipliedBy: 0.5)

/// half width of superview with low priority
View().widthToSuperview(multipliedBy: 0.5, priority: .defaultLow)

/// all the same as with topToSuperview

height

/// equal height with superview
View().heightToSuperview()

/// all the same as with widthToSuperview

Read and write view's super constraints directly. And even animate them.

let v = View()
v.top = 24
v.leading = 16
v.trailing = 16
v.bottom = -24
UIViewPropertyAnimator(duration: 0.5, curve: .easeInOut) {
    v.top = 0
    v.leading = 8
    v.trailing = 8
    v.bottom = 0
}.startAnimation()

Relative

top

View().top(to: otherView)
View().top(to: otherView, 16)
View().top(to: otherView, $topStateValue)
View().top(to: .top, of: otherView)
View().top(to: .top, of: otherView, $topStateValue)

leading

View().leading(to: otherView)

/// all the same as for top(to:)

trailing

View().trailing(to: otherView)

/// all the same as for top(to:)

bottom

View().bottom(to: otherView)

/// all the same as for top(to:)

left

View().left(to: otherView)

/// all the same as for top(to:)

right

View().right(to: otherView)

/// all the same as for top(to:)

centerX

View().centerX(to: otherView)

/// all the same as for top(to:)

centerY

View().centerY(to: otherView)

/// all the same as for top(to:)

center

View().center(to: otherView)

/// all the same as for top(to:)

width

View().width(to: otherView)

/// all the same as for top(to:)

height

View().height(to: otherView)

/// all the same as for top(to:)

equal

/// just a convenient method to width&height
View().equalSize(to: otherView)

/// all the same as for top(to:)

💡 TIP: Feel free to use State, ExpressableState, and values based on device type everywhere

Relative constraints by tags 🔥

Really often we have to create some views with constraints related to each other 😃

The classic way is to create a variable with view somewhere outside, like this

let someView = UView()

then we used it with other views to make relative constraints

UView {
    someView.size(200).background(.red).centerInSuperview()
    UView().size(100).background(.cyan).centerXInSuperview().top(to: someView)
    UView().size(100).background(.purple).centerXInSuperview().bottom(to: someView)
    UView().size(100).background(.yellow).centerYInSuperview().right(to: someView)
    UView().size(100).background(.green).centerYInSuperview().left(to: someView)
}

But if it's not necessary to declare view outside the you can use tag! And easily rely to it from other views!

UView {
    UView().size(200).background(.red).centerInSuperview().tag(7)
    UView().size(100).background(.cyan).centerXInSuperview().top(to: 7)
    UView().size(100).background(.purple).centerXInSuperview().bottom(to: 7)
    UView().size(100).background(.yellow).centerYInSuperview().right(to: 7)
    UView().size(100).background(.green).centerYInSuperview().left(to: 7)
}

Even order doesn't matter 🤗

UView {
    UView().size(100).background(.cyan).centerXInSuperview().top(to: 7)
    UView().size(100).background(.purple).centerXInSuperview().bottom(to: 7)
    UView().size(100).background(.yellow).centerYInSuperview().right(to: 7)
    UView().size(100).background(.green).centerYInSuperview().left(to: 7)
    UView().size(200).background(.red).centerInSuperview().tag(7)
}

You even can add view later and all related views will immediately stick to it once it's added 🚀

let v = UView {
    UView().size(100).background(.cyan).centerXInSuperview().top(to: 7)
    UView().size(100).background(.purple).centerXInSuperview().bottom(to: 7)
    UView().size(100).background(.yellow).centerYInSuperview().right(to: 7)
    UView().size(100).background(.green).centerYInSuperview().left(to: 7)
}
DispatchQueue.main.asyncAfter(deadline: .now() + 5) {
    UIView.animate(withDuration: 1) {
        v.body {
            UView().size(200).background(.red).centerInSuperview().tag(7)
        }
    }
}

Extra

Any constraint value may be set as CGFloat or with Relation and even Multiplier

// just equal to 10
View().leading(to: .trailing, of: anotherView, 10)

// greaterThanOrEqual to 10
View().leading(to: .trailing, of: anotherView, >=10)

// lessThanOrEqual to 10
View().leading(to: .trailing, of: anotherView, <=10)

// equal to 10 with 1.5 multiplier
View().leading(to: .trailing, of: anotherView, 10 ~ 1.5)

// equal to 10 with 1.5 multiplier and 999 priority
View().leading(to: .trailing, of: anotherView, 10 ~ 1.5 ! 999)

// equal to 10 with 1.5 multiplier and `.defaultLow` priority
View().leading(to: .trailing, of: anotherView, 10 ~ 1.5 ! .defaultLow)

// equal to 10 with 999 priority
View().leading(to: .trailing, of: anotherView, 10 ! 999)

More about constraints direct access

Ok, let's imagine that you have a view which is sticked to its superview

let view = View().edgesToSuperview()

now your view have top, leading, trailing and bottom constraints to its superview and e.g. you want to change top constraint so you could do it like this

view.top = 16

or

view.declarativeConstraints.top?.constant = 16

the same way works with all view's constraints, so you can change them or even delete them just by setting them nil.

Another situation if you have a view which have a constrain to another relative view

let centerView = View().background(.black).size(100).centerInSuperview()
let secondView = View().background(.green).size(100).centerXInSuperview().top(to: .bottom, of: centerView, 16)

and for example you want to reach bottom constraint of centerView related to secondView, do it like this

// short way
centerView.outer[.bottom, secondView] = 32 // changes their vertical spacing from 16 to 32
// long way
centerView.declarativeConstraints.outer[.bottom, secondView]?.constant = 32 // changes their vertical spacing from 16 to 32

Detailed instruction

alias is UView

View may be created with empty initializer

View()

or you can put subviews into it right while initialization

View {
    View()
    View()
}

or you can wrap some view using inline keyword so that inner view will stick all edges to superview

View(inline: MKMapView())

also you can add subviews to that superview by calling .body { ... } method. even multiple times.

View().body {
    View()
    View()
}.body {
    View()
}.body {
    View()
    View()
    View()
}

// implemented. to be described more

This is really bonus view! :D Almost every app now uses verification codes for login and now you can easily implement that code view with UISwift! :)

VerificationCodeField().digitWidth(64)
                       .digitsMargin(25)
                       .digitBorder(.bottom, 1, 0xC6CBD3)
                       .digitColor(0x171A1D)
                       .font(.sfProRegular, 32)
                       .entered(verify)

func verify(_ code: String) {
  print("entered code: " + code)
}

// implemented. to be described more

VisualEffectView(.darkBlur)
VisualEffectView(.lightBlur)
VisualEffectView(.extraLightBlur)
// iOS10+
VisualEffectView(.prominent)
VisualEffectView(.regular)

// iOS13+ (but can be used since iOS9+)
// automatic dynamic effect for light and dark modes
VisualEffectView(.darkBlur, .lightBlur) // effect will be switched automatically. darkBlur is for light mode.

Create your own extension for your custom effects to use them easily like in example above

extension UIVisualEffect {
    public static var darkBlur: UIVisualEffect { return UIBlurEffect(style: .dark) }
}

It is simple View but with ability to initialize with inner view

WrapperView {
  View().background(.red).shadow()
}.background(.green).shadow()

and you could specify innerView`s padding right here

// to the same padding for all sides
WrapperView {
  View()
}.padding(10)
// or to specific padding for each side
WrapperView {
  View()
}.padding(top: 10, left: 5, right: 10, bottom: 5)
// or even like this
WrapperView {
  View()
}.padding(top: 10, right: 10)

// implemented. to be described

My favourite feature.

ImpactFeedback.error()
ImpactFeedback.success()
ImpactFeedback.selected()
ImpactFeedback.bzz()

// set any localization as default
Localization.default = .en

// override current locale
Localization.current = .en

// create string relative to current language
let myString = String(
    .en("Hello"),
    .fr("Bonjour"),
    .ru("Привет"),
    .es("Hola"),
    .zh_Hans("你好"),
    .ja("こんにちは"))
print(myString)

By default current language is equal to Locale.current but you can change it by setting Localizer.current = .en. Also localizer have default language in case if user's language doesn't match any in your string, and you could set it just by calling Localizer.default = .en.

Also you can use localizable strings directly in Button, Text, TextView, TextField and AttributedString

Text(.en("Hello"), .ru("Привет"), .fr("Bonjour"), .es("Hola"))

TextView(.en("Hello"), .ru("Привет"), .fr("Bonjour"), .es("Hola"))
    .placeholder(.en("Hello"), .ru("Привет"), .fr("Bonjour"), .es("Hola"))

TextField(.en("Hello"), .ru("Привет"), .fr("Bonjour"), .es("Hola"))
    .placeholder(.en("Hello"), .ru("Привет"), .fr("Bonjour"), .es("Hola"))

Button(.en("Hello"), .ru("Привет"), .fr("Bonjour"), .es("Hola"))
Button().title(.en("Hello"), .ru("Привет"), .fr("Bonjour"), .es("Hola"), state: .highlighted)

AttrStr(.en("Hello"), .ru("Привет"), .fr("Bonjour"), .es("Hola"))

But how to use this awesome localization with 10+ languages in the app?

Just create a dedicated localization file (e.g. Localization.swift) like this

extension String {
    static func transferTo(_ wallet: String) -> String {
        String(.en("Transfer to #\(wallet)"),
                  .ru("Перевод на #\(wallet)"),
                  .zh("转移到 #\(wallet)"),
                  .ja("＃\(wallet)に転送"),
                  .es("Transferir a #\(wallet)"),
                  .fr("Transférer au #\(wallet)"),
                  .sv("Överför till #\(wallet)"),
                  .de("Übertragen Sie auf #\(wallet)"),
                  .tr("\(wallet) numarasına aktar"),
                  .it("Trasferimento al n. \(wallet)"),
                  .cs("Převod na #\(wallet)"),
                  .he("\(wallet) העבר למספר"),
                  .ar("\(wallet)#نقل إلى"))
    }
    static var copyLink: String {
        String(.en("Copy link to clipboard"),
                  .ru("Скопировать ссылку"),
                  .zh("复制链接到剪贴板"),
                  .ja("リンクをクリップボードにコピー"),
                  .es("Copiar enlace al portapapeles"),
                  .fr("Copier le lien dans le presse-papiers"),
                  .sv("Kopiera länk till urklipp"),
                  .de("Link in Zwischenablage kopieren"),
                  .tr("Bağlantıyı panoya kopyala"),
                  .it("Copia il link negli appunti"),
                  .cs("Zkopírujte odkaz do schránky"),
                  .he("העתק קישור ללוח"),
                  .ar("نسخ الرابط إلى الحافظة"))
    }
    static var copyLinkSucceeded: String {
        String(.en("Link has been copied to clipboard"),
                  .ru("Ссылка успешно скопирована в буфер обмена"),
                  .zh("链接已复制到剪贴板"),
                  .ja("リンクがクリップボードにコピーされました"),
                  .es("El enlace ha sido copiado al portapapeles"),
                  .fr("Le lien a été copié dans le presse-papiers"),
                  .sv("Länken har kopierats till Urklipp"),
                  .de("Der Link wurde in die Zwischenablage kopiert"),
                  .tr("Bağlantı panoya kopyalandı"),
                  .it("Il link è stato copiato negli appunti"),
                  .cs("Odkaz byl zkopírován do schránky"),
                  .he("הקישור הועתק ללוח"),
                  .ar("تم نسخ الرابط إلى الحافظة"))
    }
    static var shareNumber: String {
        String(.en("Share number"),
                  .ru("Поделиться номером"),
                  .zh("分享号码"),
                  .ja("共有番号"),
                  .es("Compartir número"),
                  .fr("Numéro de partage"),
                  .sv("Aktienummer"),
                  .de("Teilenummer"),
                  .tr("Numarayı paylaş"),
                  .it("Condividi il numero"),
                  .cs("Sdílejte číslo"),
                  .he("מספר שתף"),
                  .ar("رقم السهم"))
    }
    static var shareLink: String {
        String(.en("Share link"),
                  .ru("Поделиться ссылкой"),
                  .zh("分享链接"),
                  .ja("共有リンク"),
                  .es("Compartir enlace"),
                  .fr("Lien de partage"),
                  .sv("Dela länk"),
                  .de("Einen Link teilen"),
                  .tr("Linki paylaş"),
                  .it("Condividi il link"),
                  .cs("Sdílet odkaz"),
                  .he("שתף קישור"),
                  .ar("مشاركة الرابط"))
    }
}

And then use localized string all over the app this easy way

Text(.transferTo("123")) // Transfer to #123
Text(.copyLinkSucceeded) // Copy link to clipboard
Button(.shareNumber) // Share number
Button(.shareLink) // Share link

// implemented. to be described

In any ViewController you can set statusBarStyle and all its values are iOS9+.

override var statusBarStyle: StatusBarStyle { .default }
override var statusBarStyle: StatusBarStyle { .dark }
override var statusBarStyle: StatusBarStyle { .light }

/// Simple color
UIColor.red

/// Automatic dynamic color: black for light mode, white for dark mode
UIColor.black / UIColor.white

/// color in hex, represented as int and supported by all color properties
0xFF0000

/// hex color converted to UIColor
0xFF0000.color

/// hex colors as dynamic UIColor
0x000.color / 0xfff.color

/// color with alpha
UIColor.white.alpha(0.5)

/// hex color with alpha
0xFFFFFF.color.alpha(0.5)

Declare custom colors like this

import UIKit
import UISwift

extension UIColor {
    static var mainBlack: UIColor { return .black  }
    static var otherGreen: UIColor { return 0x3D7227.color  } // 61 114 39
}

and then use them just like

Label("Hello world").color(.otherGreen).background(.mainBlack)

// implemented. to be described

/// helper to print all the fonts in console (debug only)
UIFont.printAll()

Add your custom fonts to the project and then declare them like this

import UISwift

extension FontIdentifier {
    public static var sfProBold = FontIdentifier("SFProDisplay-Bold")
    public static var sfProRegular = FontIdentifier("SFProDisplay-Regular")
    public static var sfProMedium = FontIdentifier("SFProDisplay-Medium")
}

and then use them just like

Button().font(.sfProMedium, 15)

Detailed instruction

alias is UState

/// usual
@State var myState = UIColor.red
@State var myState = ""
@State var myState = 0
// etc.

/// expressable
$boolStateToColor.map { $0 == true ? .red : .green }
$boolStateToString.map { !$0 ? "night" : "day" }

/// mix to Int states into one String expressable
$state1.and($state2).map { $0.left > $0.right ? "higher" : "lower" }

AttributedString("hello").background(.gray)
                         .foreground(.red)
                         .font(.sfProBold, 15)
                         .paragraphStyle(.default)
                         .ligature(1)
                         .kern(1)
                         .strikethroughStyle(1)
                         .underlineStyle(.patternDash)
                         .strokeColor(.purple)
                         .strokeWidth(1)
                         .shadow()
                   // or .shadow(offset: .zero, blur: 1, color: .lightGray)
                         .textEffect("someEffect")
                         .attachment(someAttachment)
                         .link("http://github.com")
                         .baselineOffset(1)
                         .underlineColor(.cyan)
                         .strikethroughColor(.magenta)
                         .obliqueness(1)
                         .expansion(1)
                         .glyphForm(.horizontal)
                         .writingDirection(.rightToLeft)

/// also use shorter alias
AttrStr("hello").foreground(.red)
// or even just
"hello".foreground(.red)

// implemented. to be described

// implemented. to be described

// implemented. to be described

alias is UButton

// to be described more

Button()
Button("Tap me")
Button().title("Tap me") // useful if you declared Button from extension like below
Button.mySuperButton.title("Tap me")

background and background for highlighted state

Button("Tap me").background(.white).backgroundHighlighted(.darkGray)

title color for different states

Button("Tap me").color(.black).color(.lightGray, .disabled)

set some font from declared identifiers or with system fonts

Button("Tap me").font(v: .systemFont(ofSize: 15))
Button("Tap me").font(.sfProBold, 15)

add image

Button("Tap me").image(UIImage(named: "cat"))
Button("Tap me").image("cat")

You can handle tap action easily

Button("Tap me").onTapGesture { print("button tapped") }
Button("Tap me").onTapGesture { button in
    print("button tapped")
}

or like this

func tapped() { print("button tapped") }
Button("Tap me").onTapGesture(tapped)

func tapped(_ button: Button) { print("button tapped") }
Button("Tap me").onTapGesture(tapped)

Declare custom buttons like this

import UISwift

extension Button {
    static var bigBottomWhite: Button {
        return Button().color(.darkGray).color(.black, .highlighted).font(.sfProMedium, 15).background(.white).backgroundHighlighted(.lightGray).circle()
    }
    static var bigBottomGreen: Button {
        return Button().color(.white).font(.sfProMedium, 15).background(.mainGreen).circle()
    }
}

and then use them like this

Button.bigBottomWhite.size(300, 50).bottomToSuperview(20).centerInSuperview()

// implemented. to be described

// difference between Collection and CollectionView
// flow layouts

// implemented. to be described

// implemented. to be described

// implemented. to be described

alias is UStackView

// implemented. to be described

StackView().axis(.vertical)
           .alignment(.fill)
           .distribution(.fillEqually)
           .spacing(16)

alias is UVStack

// implemented. to be described more The same as StackView but with predefined axis and ability to easily add arranged subviews

VStack (
  Text("hello world").background(.green),
  VSpace(16) // 16pt delimiter
  Text("hello world").background(.red)
)
.spacing(10)
.alignment(.left)
.distribution(...)

// implemented. to be described

/// it is the same as VStack but it is combined with ScrollView

alias is UHStack

// implemented. to be described more The same as StackView but with predefined axis and ability to easily add arranged subviews

HStack (
  Text("hello world").background(.green),
  HSpace(16) // 16pt delimiter
  Text("hello world").background(.red)
)
.spacing(10)
.alignment(.left)
.distribution(...)

// implemented. to be described

/// it is the same as HStack but it is combined with ScrollView

/// just a horizontal delimiter
HSpace(16)
/// alternatively
View().width(16)

/// just a vertical delimiter
VSpace(16)
/// alternatively
View().height(16)

/// just a flexible space for stack views
Space()
/// alternatively
View()

// implemented. to be described

alias is UImage

// to be described more

Declare asset images like this

import UISwift

extension Image {
    static var welcomeBackground: Image { return Image("WelcomeBackground") }
}

and then use them like this

let backgroudImage = Image.welcomeBackground.edgesToSuperview()

With built-in ImageLoader

Image(url: "")
Image(url: "", defaultImage: UIImage(named: "emptyImage")) // set default image to show it while loading
Image(url: "", loader: .defaultRelease) // release image before start loading
Image(url: "", loader: .defaultImmediate) // immediate replace image after loading
Image(url: "", loader: .defaultFade) // replace image with fade effect after loading
Image(url: "", loader: ImageLoader()) // subclass from `ImageLoader` and set you custom loader here

// implemented. to be described

alias is UList

// implemented. to be described

also describe auto-DIFF with Identable models

// implemented. to be described

// implemented. to be described

// implemented. to be described

// implemented. to be described more

ScrollView().paging(true).scrolling(false).hideIndicator(.horizontal)
ScrollView().paging(true).scrolling(false).hideAllIndicators()
ScrollView().contentInset(.zero)
ScrollView().contentInset(top: 10, left: 5, right: 5, bottom: 10)
ScrollView().contentInset(top: 10, bottom: 10)
ScrollView().scrollIndicatorInsets(.zero)
ScrollView().scrollIndicatorInsets(top: 10, left: 5, right: 5, bottom: 10)
ScrollView().scrollIndicatorInsets(top: 10, bottom: 10)

alias is USegmentedControl

// implemented. to be described more

@State var selectedItem = 0
SegmentedControl("One", "Two").select($selectedItem)
// or simply
SegmentedControl("One", "Two").select(0).changed { print("segment changed to \($0)") }

// implemented. to be described

alias is UStepper

// implemented. to be described

alias is UTextField

// implemented. to be described

// format with AnyFormat

TextField()
TextField("some text")
TextField().text("some text")
TextField.mySuperDuperTextField.text("some text")

set some font from declared identifiers or with system fonts

TextField().font(v: .systemFont(ofSize: 15))
TextField().font(.sfProBold, 15)

set text color

TextField().color(.red)

set text alignment

TextField().alignment(.center)

placeholder

TextField().placeholder("email")
// or use AttributedString to make it colored
TextField().placeholder(AttributedString("email").foreground(.green))

secure

TextField().secure()

remove any text from field easily

TextField().cleanup()

set keyboard and content type

TextField().keyboard(.emailAddress).content(.emailAddress)

set delegate

TextField().delegate(self)

or get needed events declarative way

TextField().shouldBeginEditing { tf in return true }
           .didBeginEditing { tf in }
           .shouldEndEditing { tf in return true }
           .didEndEditing { tf in }
           .shouldChangeCharacters { tf, range, replacement in return true }
           .shouldClear { tf in return true }
           .shouldReturn { tf in return true }
           .editingDidBegin { tf in }
           .editingChanged { tf in }
           .editingDidEnd { tf in }

alias is UText or just Label

// to be described more It either may be initialized with String or unlimited amount of AttributedStrings

Label("hello 👋 ")
Label().text("hello") // useful if declare label in extension like below
Label.mySuperLabel.text("hello")
Label("hello".foreground(.red), "world".foreground(.green))

set some font from declared identifiers or with system fonts

Label("hello").font(v: .systemFont(ofSize: 15))
Label("hello").font(.sfProBold, 15)

set text color

Label("hello").color(.red)

set text alignment

Label("hello").alignment(.center)

set amount of lines

Label("hello").lines(1)
Label("hello\nworld").lines(0)
Label("hello\nworld").lines(2)
Label("hello\nworld").multiline()

Declare custom attributed labels like this

import UISwift

extension Label {
    static var welcomeLogo: Label {
        return .init(AttributedString("My").foreground(.white).font(.sfProBold, 26),
                     AttributedString("App").font(.sfProBold, 26))
    }
}

and then use them like this

let logo = Label.welcomeLogo.centerInSuperview()

alias is UTextView

// implemented. to be described

alias is UToggle

// implemented. to be described

View().alpha(0)
View().alpha($alphaState)
View().alpha($boolState.map { $0 ? 1 : 0 })

View().background(.red)
View().background(0xff0000)
View().background($colorState)
View().background($boolState.map { $0 ? .red : .green })

To set border on all sides

View().border(1, .black)
View().border(1, 0x000)

To set border on specific side

View().border(.top, 1, .black)
View().border(.left, 1, .black)
View().border(.right, 1, .black)
View().border(.bottom, 1, .black)

To remove border from specific side

.removeBorder(.top)

// implemented. to be described

// implemented. to be described

To set radius to all corners

View().corners(10)
View().corners($cornerRadiusState)

To set custom radius for specific corner

View().corners(10, .topLeft, .topRight)
View().corners(10, .topLeft, .bottomRight)
View().corners(10, .topLeft, .topRight, .bottomLeft, .bottomRight)

To make your view's corners round automatically by smaller side

View().circle()

View().hidden() // will set `true` by default
View().hidden(true)
View().hidden(false)
View().hidden($hiddenState)
View().hidden($stringState.map { $0.count > 0 })

// implemented. to be described

// implemented. to be described

// to all sides
View().layoutMargin(10)
// optional sides
View().layoutMargin(top: 10)
View().layoutMargin(left: 10, bottom: 5)
View().layoutMargin(top: 10, right: 5)
// vertical and horizontal
View().layoutMargin(x: 10, y: 5) // top: 5, left: 10, right: 10, bottom: 5
View().layoutMargin(x: 10) // left: 10, right: 10
View().layoutMargin(y: 5) // top: 5, bottom: 5

// implemented. to be described

View().opacity(0)
View().opacity($alphaState)
View().opacity($boolState.map { $0 ? 1 : 0 })

To rasterize layer, e.g. for better shadow performance

View().rasterize() // true by default
View().rasterize(true)
View().rasterize(false)

// to be described more

// and with mroe than one shadow
// and with state, expressableState

View().shadow() // by default it's black, opacity 1, zero offset, radius 10
View().shadow(.gray, opacity: 0.8, offset: .zero, radius: 5)
View().shadow(0x000000, opacity: 0.8, offset: .zero, radius: 5)

You can shake any view just by calling

View().shake()

And you could customize shake effect

View().shake(values: [-20, 20, -20, 20, -10, 10, -5, 5, 0],
             duration: 0.6,
             axis: .horizontal,
             timing: .easeInEaseOut)
View().shake(-20, 20, -20, 20, -10, 10, -5, 5, 0,
             duration: 0.6,
             axis: .horizontal,
             timing: .easeInEaseOut)

or even create an extension

import UISwift

extension DeclarativeProtocol {
  func myShake() {
      View().shake(-20, 20, -20, 20, -10, 10, -5, 5, 0,
                   duration: 0.6,
                   axis: .horizontal,
                   timing: .easeInEaseOut)
  }
}

View().tag(0)

View().tint(.red)
View().tint(0xff0000)
View().tint($colorState)
View().tint($boolState.map { $0 ? .red : .green })

// implemented. to be described