CodeVerificationViewController.swift
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//
// CodeVerificationViewController.swift
// InterQR-Internship
//
// Created by Дмитрий Тимофеев on 03.06.2022.
//
import UIKit
class CodeVerificationViewController: UIViewController {
var otp: String = ""
var isKeyboardAppear = false
private let mainView = CodeVerificationView()
override func loadView() {
view = mainView
}
override func viewDidLoad() {
initViewController()
}
private func initViewController() {
mainView.textField.delegate = self
mainView.backButton.addTarget(self, action: #selector(didDismissVC), for: .touchUpInside)
mainView.verifyButton.addTarget(self, action: #selector(didVerifyCode), for: .touchUpInside)
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillShow(notification:)), name: UIResponder.keyboardWillShowNotification, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillHide), name: UIResponder.keyboardWillHideNotification, object: nil)
}
deinit {
NotificationCenter.default.removeObserver(self, name: UIResponder.keyboardWillShowNotification, object: nil)
NotificationCenter.default.removeObserver(self, name: UIResponder.keyboardWillHideNotification, object: nil)
}
}
extension CodeVerificationViewController {
@objc func didDismissVC() {
navigationController?.popViewController(animated: true)
}
@objc func didVerifyCode() {
if mainView.fourthDigitLabel.text == nil {
let alert = UIAlertController(title: "❌❌❌", message: "Some fields are empty, please fill in all", preferredStyle: .alert)
let _: Void = alert.addAction(UIAlertAction(title: "Close", style: .cancel, handler: nil))
present(alert, animated: true, completion: nil)
} else {
mainView.firstDigitLabel.backgroundColor = UIColor(red: 1, green: 0.929, blue: 0.941, alpha: 1)
mainView.firstDigitLabel.textColor = UIColor(red: 1, green: 0, blue: 0.18, alpha: 1)
mainView.secondDigitLabel.backgroundColor = UIColor(red: 1, green: 0.929, blue: 0.941, alpha: 1)
mainView.secondDigitLabel.textColor = UIColor(red: 1, green: 0, blue: 0.18, alpha: 1)
mainView.thirdDigitLabel.backgroundColor = UIColor(red: 1, green: 0.929, blue: 0.941, alpha: 1)
mainView.thirdDigitLabel.textColor = UIColor(red: 1, green: 0, blue: 0.18, alpha: 1)
mainView.fourthDigitLabel.backgroundColor = UIColor(red: 1, green: 0.929, blue: 0.941, alpha: 1)
mainView.fourthDigitLabel.textColor = UIColor(red: 1, green: 0, blue: 0.18, alpha: 1)
mainView.errorAlertLabel.isHidden = false
DispatchQueue.main.asyncAfter(deadline: .now() + 3) {
let vc = HomeViewController()
vc.navigationItem.hidesBackButton = true
self.navigationController?.pushViewController(vc, animated: true)
}
}
}
@objc func keyboardWillShow(notification: NSNotification) {
let duration = notification.userInfo?[UIResponder.keyboardAnimationDurationUserInfoKey] as? Double
if !isKeyboardAppear {
UIView.animate(withDuration: duration ?? 0) {
self.mainView.containerView.snp.updateConstraints { make in
make.top.equalTo(self.mainView.backButton.snp.bottom).offset(97)
}
self.mainView.shieldImage.snp.updateConstraints {
$0.right.equalTo(self.mainView.snp.right).offset(-6)
}
self.mainView.layoutIfNeeded()
}
isKeyboardAppear = true
}
}
@objc func keyboardWillHide(notification: NSNotification) {
let duration = notification.userInfo?[UIResponder.keyboardAnimationDurationUserInfoKey] as? Double
if isKeyboardAppear {
UIView.animate(withDuration: duration ?? 0) {
self.mainView.containerView.snp.updateConstraints { make in
make.top.equalTo(self.mainView.backButton.snp.bottom).offset(227)
}
self.mainView.shieldImage.snp.updateConstraints {
$0.right.equalTo(self.mainView.snp.right).offset(-101)
}
self.mainView.layoutIfNeeded()
}
isKeyboardAppear = false
}
}
}
extension CodeVerificationViewController: UITextFieldDelegate {
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
otp += string
otp.enumerated().forEach { index,item in
switch index {
case 0:
mainView.firstDigitLabel.text = String(item)
case 1:
mainView.secondDigitLabel.text = String(item)
case 2:
mainView.thirdDigitLabel.text = String(item)
case 3:
mainView.fourthDigitLabel.text = String(item)
mainView.textField.endEditing(true)
default:
mainView.textField.endEditing(true)
}
}
return true
}
}