MockingbirdUIKit

Mockingbird is a UIKit renderer for platform independent Mockingbird DSL. The goal of this project is to provide a SwiftUI-like UI framework for older iOS versions starting from iOS 9.

Example

MockingbirdUIKit is just like SwiftUI for UIKit except that the body of your views return SomeView instead of some View to enable pre-iOS 13 compatibility.

struct MyView: View {

    @State var counter: Int = 0

    var body: SomeView {
        VStack(spacing: 20) {
            Text("\(counter)")
                .fontWeight(.heavy)
                .padding(20)
                .background(Color.orange)
                .clipShape(RoundedRectangle(cornerRadius: 10))
                .shadow(radius: 10)
            HStack {
                Button("Decrease") { self.counter -= 1}
                Button("Increase") { self.counter += 1}
            }
        }
    }
}

window.rootViewController = HostingController(rootView: MyView())

Status

Property Wrappers

Status	Name	Notes
✅	State
✅	Binding
✅	ObservedObject
✅	EnvironmentObject
✅	Published	In ReactiveKit
✅	ObservableObject	In ReactiveKit

Views

Status	Name	Notes
✅	Never
✅	Optional
✅	VStack
✅	HStack
✅	ZStack
✅	Spacer
✅	Button	Partial
✅	Color
✅	Image
✅	Text
✅	AnyView
✅	TupleView
✅	EmptyView
✅	ModifiedContent
✅	ConditionalContent
✅	GeometryReader
✅	ForEach	Partial
✅	Shape
✅	Slider
✅	Sheet
✅	ScrollView
❌	Toggle
❌	List
❌	NavigationView
❌	TabView
❌	...

View Modifiers

Status	Name	Notes
✅	Padding
✅	Frame
✅	FlexFrame
✅	LayoutPriority
✅	ClipShape
✅	Overlay
✅	Background
✅	FixedSize
✅	AspectRatio
✅	Offset
✅	Shadow
✅	Gesture
✅	EnvironmentValue
✅	EnvironmentObject
✅	EdgesIgnoringSafeArea
❌	Animation
❌	Transaction
❌	RotationEffect
❌	ProjectionEffect
❌	TransformEffect
❌	ProjectionEffect
❌	OnAppear
❌	OnDisappear
❌	...

Shapes

Status	Name	Notes
✅	Path
✅	Rectangle
✅	RoundedRectangle
✅	Circle
✅	Ellipse
✅	Capsule

Shape Styles

Status	Name	Notes
✅	Color
✅	FillStyle
✅	StrokeStyle
✅	ForegroundStyle
❌	ImagePaint
❌	Gradient
❌	...

Gestures

Status	Name	Notes
✅	TapGesture
✅	LongPressGesture
✅	RotationGesture
✅	DragGesture
❌	...

Installation

SPM

Add https://github.com/DeclarativeHub/MockingbirdUIKit.git as a dependency.

Carthage

github "DeclarativeHub/MockingbirdUIKit" "master"