vialyx

import UIKit

class ViewController: UIViewController {

    @IBOutlet weak var contentView: UIView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        contentView.backgroundColor = .yellow

vialyx

class ViewController: UIViewController {

    @IBOutlet weak var table: UITableView!
    // Create constant data source
    private let dataSource = TableDataSource()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Attach to table view
        dataSource.attach(to: table)

vialyx

import UIKit

final class ViewController: UIViewController {
    
    @IBOutlet weak var collectionView: UICollectionView!
    // Create constant data source
    private let dataSource = DataSource()
    
    override func viewDidLoad() {
        super.viewDidLoad()

vialyx

import UIKit

final class ViewController: UIViewController {
    
    @IBOutlet weak var field: UITextField!
    @IBOutlet weak var label: UILabel!
    @IBOutlet weak var button: UIButton!
    
    override func viewDidLoad() {
        super.viewDidLoad()

vialyx

// MARK: - Actions
    @IBAction func buttonDidTap(_ sender: Any) {
        // Check text in field. Animation is starting only if text is empty
        if field.text?.isEmpty ?? true {
            UIView.animate(withDuration: 0.3,
                           delay: 0.0,
                           // Look options list here https://developer.apple.com/documentation/uikit/uiviewanimationoptions
                           options: [.autoreverse],
                           animations: {
                            // Create CGAffineTransform with 5 degree (CG works with radians) and convert in to radians

vialyx

@IBAction func buttonDidTap(_ sender: Any) {
        // Check text in field. Animation is starting only if text is empty
        if field.text?.isEmpty ?? true {
            UIView.animate(withDuration: 0.3,
                           delay: 0.0,
                           // Look options list here https://developer.apple.com/documentation/uikit/uiviewanimationoptions
                           options: [.autoreverse],
                           animations: {
                            // Create CGAffineTransform with 5 degree (CG works with radians) and convert in to radians
                            self.field.transform = CGAffineTransform(rotationAngle: CGFloat(5).degreesToRadians)

vialyx

            ........
         } else {
            // Check animations in label layer
            guard label.layer.animationKeys()?.isEmpty ?? true else {
                // Clear existed animations
                label.layer.removeAllAnimations()
                // Backup center position
                label.center = CGPoint(x: view.center.x, y: label.center.y)
                return
            }

vialyx

import Foundation

// TODO: - Move to the separated file Resource.swift
struct Resource {
    let url: URL
    let method: String = "GET"
}

// TODO: - Move to the separated file GenericResult.swift
enum Result<T> {

vialyx

import UIKit

final class ViewController: UIViewController {
    
    let apiClient = APIClient()

    override func viewDidLoad() {
        super.viewDidLoad()
        
        let resource = Resource(url: URL(string: "https://desolate-beyond-86929.herokuapp.com/arrival")!)

vialyx

// <JsonCoddableUrlSession.ViewController: 0x7f925bd1bd10> retrive data: Optional("[{\"Airline\":\"AEROFLOT\",\"ScheduleTime\":\"00:25\",\"ActualTime\":\"00:11\",\"Flight\":\"SU1834\",\"DepartureAirport\":\"МОСКВА(ШЕРЕМЕТЬЕВО) \",\"Sector\":\"5\",\"Status\":\"\\u003cspan style=\\\"color:green\\\"\\u003eПРИБЫЛ\\u003c/span\\u003e\"},{\"Airline\":\"AUSTRIAN AIRLINES\",\"ScheduleTime\":\"00:40\",\"ActualTime\":\"00:15\",\"Flight\":\"OS689\",\"DepartureAirport\":\"ВЕНА \",\"Sector\":\"4\",\"Status\":\"\\u003cspan style=\\\"color:green\\\"\\u003eПРИБЫЛ\\u003c/span\\u003e\"},{\"Airline\":\"AEROFLOT\",\"ScheduleTime\":\"02:20\",\"ActualTime\":\"02:14\",\"Flight\":\"SU1838\",\"DepartureAirport\":\"МОСКВА(ШЕРЕМЕТЬЕВО) \"