ExtendedButton.swift

import UIKit
import PlaygroundSupport

class MyView: UIView {
	
	override func point(inside point: CGPoint, with event: UIEvent?) -> Bool {
		var f = bounds
		f.origin.y -= 20
		return f.contains(point)
	}
	
}

class TestViewController : UIViewController {
	
	let redButton: UIButton = {
		let b = UIButton()
		b.translatesAutoresizingMaskIntoConstraints = false
		b.setTitle("Tap Me", for: .normal)
		b.backgroundColor = .red
		return b
	}()
	
	let testMyView: MyView = {
		let v = MyView()
		v.translatesAutoresizingMaskIntoConstraints = false
		v.backgroundColor = .orange
		return v
	}()
	
	let blueButton: UIButton = {
		let b = UIButton()
		b.translatesAutoresizingMaskIntoConstraints = false
		b.setTitle("Tap Me", for: .normal)
		b.backgroundColor = .blue
		return b
	}()
	
	let normalView: UIView = {
		let v = UIView()
		v.translatesAutoresizingMaskIntoConstraints = false
		v.backgroundColor = .green
		return v
	}()
	
	override func viewDidLoad() {
		super.viewDidLoad()
		
		view.addSubview(normalView)

		normalView.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
		normalView.topAnchor.constraint(equalTo: view.topAnchor, constant: 80.0).isActive = true
		normalView.widthAnchor.constraint(equalToConstant: 300).isActive = true
		normalView.heightAnchor.constraint(equalToConstant: 200).isActive = true

		normalView.addSubview(redButton)
		
		redButton.addTarget(self, action: #selector(redTap(_:)), for: .touchUpInside)
		
		redButton.centerXAnchor.constraint(equalTo: normalView.centerXAnchor).isActive = true
		redButton.topAnchor.constraint(equalTo: normalView.topAnchor, constant: -20.0).isActive = true
		
		
		view.addSubview(testMyView)
		
		testMyView.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
		testMyView.topAnchor.constraint(equalTo: normalView.bottomAnchor, constant: 80.0).isActive = true
		testMyView.widthAnchor.constraint(equalToConstant: 300).isActive = true
		testMyView.heightAnchor.constraint(equalToConstant: 200).isActive = true
		
		testMyView.addSubview(blueButton)
		
		blueButton.addTarget(self, action: #selector(blueTap(_:)), for: .touchUpInside)
		
		blueButton.centerXAnchor.constraint(equalTo: testMyView.centerXAnchor).isActive = true
		blueButton.topAnchor.constraint(equalTo: testMyView.topAnchor, constant: -20.0).isActive = true
		
		
		
		
	}
	
	func redTap(_ sender: Any?) -> Void {
		print("Red Tapped!")
	}
	
	func blueTap(_ sender: Any?) -> Void {
		print("Blue Tapped!")
	}
	
}


let vc = TestViewController()
vc.view.backgroundColor = .white
PlaygroundPage.current.liveView = vc