Implementing a custom button class

This is a sample code to create and paste a custom button class that extends UIButton.
By separating the look and feel of the ViewController into separate files, you can make the ViewController look neat.

alt

	import UIKit

	class CustomButton: UIButton {

	required init(coder aDecoder: NSCoder) {
	super.init(coder: aDecoder)!
	}

	override init(frame: CGRect) {
	super.init(frame: frame)
	self.setTitle("Custom", for: UIControlState.normal)
	self.setTitleColor(UIColor.white, for: UIControlState.normal)
	self.backgroundColor = UIColor.orange
	self.layer.masksToBounds = true
	self.layer.cornerRadius = 32
	self.layer.borderColor = UIColor.black.cgColor
	self.layer.borderWidth = 4
	self.titleLabel?.font = UIFont.boldSystemFont(ofSize: 28)
	}
	}

view raw CustomButton.swift hosted with ❤ by GitHub

	import UIKit

	class ViewController: UIViewController {

	override func viewDidLoad() {
	super.viewDidLoad()

	let viewWidth = self.view.frame.width
	let viewHeight = self.view.frame.height

	let custumBtn = CustomButton()
	custumBtn.frame = CGRect(x: viewWidth * 0.3, y: viewHeight * 0.4, width: viewWidth * 0.4, height: viewHeight * 0.2)
	custumBtn.addTarget(self, action: #selector(customBtnClicked(sender:)), for:.touchUpInside)
	self.view.addSubview(custumBtn)
	}

	@objc func customBtnClicked(sender:UIButton) {
	print("ボタンが押されたよ")
	}
	}

view raw ViewController.swift hosted with ❤ by GitHub