TransformView ViewCode

TransformView.swift

import UIKit

class TransformView: UIView {
    var inputTextField: UITextField!
    var transformButton: UIButton!

    private func makeInputTextField() -> UITextField {
        let input = UITextField()
        input.textColor = .label
        input.placeholder = "Add only letters here"
        input.textAlignment = .center
        input.layer.borderColor = UIColor.darkGray.cgColor
        input.layer.borderWidth = 1
        input.layer.cornerRadius = 8
        input.translatesAutoresizingMaskIntoConstraints = false
        return input
    }

    private func makeButton() -> UIButton {
        let button = UIButton()
        button.setTitleColor(.secondaryLabel, for: .normal)
        button.setTitle("Transform", for: .normal)
        button.translatesAutoresizingMaskIntoConstraints = false
        return button
    }

    func make() -> Self {
        backgroundColor = .systemBackground
        inputTextField = makeInputTextField()
        addSubview(inputTextField)
        transformButton = makeButton()
        addSubview(transformButton)

        inputTextField
            .centerYAnchor
            .constraint(equalTo: centerYAnchor)
            .isActive = true

        inputTextField
            .centerXAnchor
            .constraint(equalTo: centerXAnchor)
            .isActive = true

        inputTextField
            .widthAnchor
            .constraint(equalToConstant: 200)
            .isActive = true

        inputTextField
            .heightAnchor
            .constraint(equalToConstant: 30)
            .isActive = true

        transformButton
            .topAnchor
            .constraint(equalTo: inputTextField.bottomAnchor,
                        constant: 40)
            .isActive = true

        transformButton
            .centerXAnchor
            .constraint(equalTo: inputTextField.centerXAnchor)
            .isActive = true

        return self
    }
}