inamiy

React & Elm inspired frameworks in Swift

This is a curated list of iOS (Swift & ObjC) frameworks which are inspired by React and Elm.

Swift frameworks

React-inspired

• ReactSwift by @ColinEberhardt
• https://github.com/ColinEberhardt/ReactSwift

mobilinked

//
//  Created by https://quickplan.app on 2020/11/8.
//

import SwiftUI

/// Control if allow to dismiss the sheet by the user actions
/// - Drag down on the sheet on iPhone and iPad
/// - Tap outside the sheet on iPad
/// No impact to dismiss programatically (by calling "presentationMode.wrappedValue.dismiss()")

jz709u

import SwiftUI

fileprivate extension DateFormatter {
    static var month: DateFormatter {
        let formatter = DateFormatter()
        formatter.dateFormat = "MMMM"
        return formatter
    }

    static var monthAndYear: DateFormatter {

drewmccormack

//
// Lightweight but powerful state machine.
//
// Usage:
//     enum TrafficLight: State {
//         case red, orange, green
//     }
//
//     var trafficLights = StateMachine<TrafficLight>(initialState: .red)
//     trafficLights.addRoute(from: .red, to: .green)

sindresorhus

extension UIImage {
	private final class UIImageActivityItemSource: NSObject, UIActivityItemSource {
		var image = UIImage()
		var title: String?
		var url: URL?

		func activityViewControllerPlaceholderItem(_ activityViewController: UIActivityViewController) -> Any {
			UIImage()
		}

IanKeen

extension View {
    func relative(width: CGFloat? = nil, height: CGFloat? = nil, alignment: Alignment = .center) -> some View {
        Color.clear
            .frame(maxWidth: width.map { _ in .infinity }, maxHeight: height.map { _ in .infinity })
            .overlay(GeometryReader { proxy in
                ZStack {
                    self.frame(
                        width: width.map { proxy.size.width * $0 },
                        height: height.map { proxy.size.height * $0 }
                    )

jtrivedi

func scrollViewDidScroll(_ scrollView: UIScrollView) {
    for (i, view) in scrollView.subviews.enumerated() {
        var ty = 0.0
        if scrollView.contentOffset.y < 0 {
            // We're scrolling past the top of the scroll view.
            // Translate each item in the scroll view by some amount based on its index and scroll offset.
            ty = CGFloat(i) * abs(offsetY) / 8.0 * pow(1.12, CGFloat(i))
        }
        view.transform = CGAffineTransform(translationX: 0, y: ty)
    }

inamiy

import SwiftUI

struct RootStringNavStack: View {
    @State
    var navigationPath: [String] = []

    // For hook-printing.
    var navigationPathBinding: Binding<[String]> {
        .init(
            get: { navigationPath },