Custom CheckBox in Swift

MyCheckBox.swift

import UIKit

class MyCheckBox: UIButton {
    let checkedImage = UIImage(named: "checkbox_checked")
    let uncheckedImage = UIImage(named: "checkbox_not_checked")

    var isChecked: Bool = false {
        didSet {
            if isChecked == true {
                self.setImage(checkedImage, for: .normal)
            } else {
                self.setImage(uncheckedImage, for: .normal)
            }
        }
    }

    override func awakeFromNib() {
        self.addTarget(self, action: #selector(buttonClicked), for: .touchUpInside)
        self.isChecked = false
    }

    @objc func buttonClicked(sender: UIButton) {
        if sender == self {
            isChecked = !isChecked
        }
    }
}

In the Storyboard:

• Add a new UIButton element
• Set the UIButton type to Custom
• Delete the Default Title
• Set the Custom Class to MyCheckBox
• Set constraints such as height and width

XCode Version: 11.1