LoginView.swift

import UIKit

protocol LoginViewDelegate: class {
	func loginView(_ view: LoginView, didTapLoginButton button: UIButton)
}

class LoginView: View {

	weak var delegate: LoginViewDelegate?

	var emailAddress: String {
		return emailTextField.text?.trimmingCharacters(in: .whitespacesAndNewlines) ?? ""
	}

	var password: String {
		return passwordTextField.text ?? ""
	}

	private lazy var emailTextField: UITextField = {
		let textField = UITextField()
		textField.placeholder = "Email Address"
		textField.keyboardType = .emailAddress
		return textField
	}()

	private lazy var passwordTextField: UITextField = {
		let textField = UITextField()
		textField.placeholder = "Password"
		textField.isSecureTextEntry = true
		return textField
	}()

	private lazy var loginButton: UIButton = {
		let button = UIButton(type: .system)
		button.setTitle("Login", for: .normal)
		return button
	}()

	override func setViews() {
		super.setViews()

		addSubview(emailTextField)
		addSubview(passwordTextField)
		addSubview(loginButton)
		loginButton.addTarget(self, action: #selector(didTapLoginButton(_:)), for: .touchUpInside)
	}

	override func layoutViews() {
		// layout your subviews here, consider using SnapKit, it is amazing!
	}

}

// MARK: - Actions
private extension LoginView {

	@objc func didTapLoginButton(_ button: UIButton) {
		delegate?.loginView(self, didTapLoginButton: button)
	}

}