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func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
    let contentView = ContentView()
    if let windowScene = scene as? UIWindowScene {
        let window = UIWindow(windowScene: windowScene)
        window.rootViewController = UIHostingController(rootView: contentView)
        self.window = window
        window.makeKeyAndVisible()
    }

    if let shortcutItem = connectionOptions.shortcutItem {

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struct ContentView: View {
    var body: some View {
        Text("Hello, World!")
        .contextMenu {
            Button(action: {
              // copy the content to the paste board
            }) {
                Text("Copy")
                Image(systemName: "doc.on.doc")
            }

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import UIKit

class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
    let tableView = UITableView()
    let tasks = [
        Task(id: "S_1001", name: "Laundry", description: "Wash all the clothes.", tagColor: .blue),
        Task(id: "S_1002", name: "Pick up kids", description: "Pick up the kids from the school.", tagColor: .red),
        Task(id: "S_1003", name: "Walk the dog", description: "Walk the dog in the morning", tagColor: .green),
        Task(id: "S_1004", name: "Yoga class", description: "The yoga class begins at 5 pm.", tagColor: .purple)
    ]

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func tableView(_ tableView: UITableView, contextMenuConfigurationForRowAt indexPath: IndexPath, point: CGPoint) -> UIContextMenuConfiguration? {
    let task = tasks[indexPath.row]
    return UIContextMenuConfiguration(identifier: task.id as NSString, previewProvider: nil) { _ in
        let shareAction = UIAction(
          title: "Share",
          image: UIImage(systemName: "square.and.arrow.up")) { _ in
            // share the task
        }
        let copyAction = UIAction(
          title: "Copy",

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func tableView(_ tableView: UITableView, contextMenuConfigurationForRowAt indexPath: IndexPath, point: CGPoint) -> UIContextMenuConfiguration? {
    let task = tasks[indexPath.row]
    return UIContextMenuConfiguration(identifier: task.id as NSString, previewProvider: nil) { _ in
        let blueAction = UIAction(title: "Blue") { _ in }
        let redAction = UIAction(title: "Red") { _ in }
        let greenAction = UIAction(title: "Green") { _ in }
        let purpleAction = UIAction(title: "Purple") { _ in }
        let tagActions = UIMenu(title: "Change Tag Color...", children: [blueAction, redAction, greenAction, purpleAction])
        let shareAction = UIAction(
          title: "Share",

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class TaskPreviewController: UIViewController {
    let label = UILabel()
    var task: Task!
    override func viewDidLoad() {
        super.viewDidLoad()
        view.backgroundColor = .white
        label.numberOfLines = 0
        label.font = UIFont.systemFont(ofSize: 30)
        view.addSubview(label)
        label.translatesAutoresizingMaskIntoConstraints = false

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func tableView(_ tableView: UITableView, willPerformPreviewActionForMenuWith configuration: UIContextMenuConfiguration, animator: UIContextMenuInteractionCommitAnimating) {
    guard let identifier = (configuration.identifier as? NSString) as String? else { return }
    let task = tasks.first { $0.id == identifier }
    if task != nil {
        animator.addCompletion {
            let previewController = TaskPreviewController()
            previewController.task = task
            self.show(previewController, sender: self)
        }
    }

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from datetime import datetime

datetime(2020, 1, 10, 13, 2, 0) 
# a datetime object by specifying year, month, day, hour, minute, second
datetime.today() 
# a datetime object with current date and time
datetime.now() 
# the same as above when tz is None
datetime.utcnow() 
# the same as above, but in the UTC (Coordinated Universal Time)

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