Tunous

// A way to open main app from share extension. Verified on iOS 15-26 and macOS 15
private func openApp() {
    // For this to work the app needs to have an url scheme: https://developer.apple.com/documentation/xcode/defining-a-custom-url-scheme-for-your-app
    // Potential alternative is also to use universal links: https://developer.apple.com/documentation/xcode/allowing-apps-and-websites-to-link-to-your-content
    let url = URL(string: "myApp://")!
    #if os(iOS)
    if #available(iOS 18.0, *), openURL(url) {
        return
    }
    OpenURLAction.system(url)

Tunous

import SwiftUI

struct ContentView: View {
    var body: some View {
        NavigationStack {
            TabView {
                List {
                    Text("Content")
                }
            }

Tunous

import SwiftUI

struct ContentView: View {
    var body: some View {
        VStack {
            ChildView()
            ChildView()
        }
        .padding()
        .overlayPreferenceValue(ViewPreferenceKey.self) { $0 }

Tunous

import SwiftUI

struct ContentView: View {
    @State private var showSheet1 = false
    @State private var showSheet2 = false
    @State private var showSheet3 = false

    var body: some View {
        VStack {
            Button("State object created directly") {

Tunous

import SwiftUI

struct ContentView: View {
    @State private var id = UUID()
    @State private var isOn = false

    var body: some View {
        VStack {
            // Changing this toggle will cause child views to update colors
            Toggle("Toggle", isOn: $isOn)

Tunous

import SwiftUI

final class SwiftUIView<Content: View>: UIView {

    private var heightConstraint: NSLayoutConstraint?

    init(content: Content, onSizeChanged: @escaping (CGSize) -> Void) {
        super.init(frame: .zero)

        let sizeReadingContent = content.readSize { [weak self] newSize in

Tunous

import SwiftUI

public class TapPanGestureRecognizer: UIGestureRecognizer {
    private var waitingForSecondTap: Task<Void, Never>?

    public private(set) var initialLocation: CGPoint = .zero {
        didSet {
            currentLocation = initialLocation
        }
    }