chriswebb09

class ViewTraverser {
    private func traverseSuperViews(view: UIView) -> [Int : UIView] {
        var views: [Int: UIView] = [:]
        var inputView: UIView? = view
        while inputView != nil {
            guard let tag = inputView?.tag, let view = inputView else { continue }
            views[tag] = view
            inputView = view.superview
        }
        return views

chriswebb09

class ViewTraverser {

  // Traverse superviews 
  
    private func checkForSuper(view: UIView?, views: [Int: UIView]) -> UIView? {
        guard let view = view else { return nil }
        if views[view.tag] != nil {
            return view
        }

chriswebb09

import UIKit

class ViewController: UIViewController {
    
    let viewOne = UIView()
    let viewTwo = UIView()
    let viewThree = UIView()
    let intermediaryView = UIView()
    let viewSuper = UIView()
    let traverser = ViewTraverser()

chriswebb09

import UIKit

class ViewController: UIViewController {
    // Properties 
    
     override func viewDidLoad() {
        // setup 
        let nameView = traverser.commonSuper(viewOne: viewOne, viewTwo: viewTwo)
        print(nameView?.tag)
     }   

chriswebb09

class MainViewController: UIViewController {
    
    @IBOutlet var mainView: MainView!

    override func viewDidLoad() {
        super.viewDidLoad()
        mainView.myButton.addTarget(self, action: #selector(buttonTap), for: .touchUpInside)
    }
    
    func buttonTap() {

chriswebb09

class MainView: UIView {

    @IBOutlet weak var myTextfield: UITextField!
    @IBOutlet weak var myButton: UIButton!
    
}

chriswebb09

protocol MainViewDelegate: class {
    func searchButtonTappedWithTerm(with searchTerm: String)
}

chriswebb09

class MainView: UIView {

    @IBOutlet private weak var myTextfield: UITextField!
    @IBOutlet private weak var myButton: UIButton!
    
    weak var delegate: MainViewDelegate?
    
    override func layoutSubviews() {
        super.layoutSubviews()
        myButton.addTarget(self, action: #selector(buttonTap), for: .touchUpInside)

chriswebb09

extension ViewController: MainViewDelegate {  
      func searchButtonTappedWithTerm(with searchTerm: String) {
        print("The text in UITextField is: \(searchTerm)")
    }
 }

chriswebb09

class MainViewController: UIViewController {
    
    @IBOutlet var mainView: MainView!

    override func viewDidLoad() {
        super.viewDidLoad()
        mainView.delegate = self
    }
}