435 lines
16 KiB
Swift
435 lines
16 KiB
Swift
import UIKit
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import Flutter
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import DropDown
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import ZXingObjC
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@objc class ScannerViewController: UIViewController, ZXCaptureDelegate, UITextFieldDelegate {
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enum AppLocale {
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case ru
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case en
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}
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enum ButtonState {
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case card
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case phone
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var icon: UIImage {
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switch self {
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case .card: return UIImage(named: "card")!
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case .phone: return UIImage(named: "phone")!
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}
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}
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var searchType: String {
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switch self {
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case .card: return "card"
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case .phone: return "phone"
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}
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}
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}
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var captureSizeTransform: CGAffineTransform?
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var buttonState: ButtonState = .card
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var platformChannel: FlutterMethodChannel?
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var strings = [String:String]()
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let scanRectView = UIView()
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let header = UIView()
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let textField = UITextField()
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let settingsButton = UIButton(type: .system)
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let searchType = UIButton(type: .system)
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let dropDown = DropDown()
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required init?(coder aDecoder: NSCoder) {
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super.init(coder: aDecoder)
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}
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init(strings: [String: String]) {
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super.init(nibName: nil, bundle: nil)
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strings.forEach { (k,v) in self.strings[k] = v }
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}
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func getInputHint() -> String {
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switch self.buttonState {
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case .card: return strings["enter_manual"]!
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case .phone: return strings["enter_phone"]!
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}
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}
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func getErrorText() -> String {
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switch self.buttonState {
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case .card: return strings["user_card_not_found"]!
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case .phone: return strings["user_phone_not_found"]!
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}
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}
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func setButtonState() {
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switch self.buttonState {
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case .card: self.buttonState = .phone
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case .phone: self.buttonState = .card
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}
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}
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let capture: ZXCapture = ZXCapture()
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override func viewDidLoad() {
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super.viewDidLoad()
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view.layer.addSublayer((capture.layer)!)
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view.addSubview(scanRectView)
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view.addSubview(header)
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view.bringSubview(toFront: header)
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view.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(ScannerViewController.hideKeyboard)))
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initCamera()
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initSearchTypeButton()
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initTextFIeld()
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initSettingsButton()
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initDropDown()
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initHeader()
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}
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private func initCamera() {
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capture.camera = capture.back()
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capture.focusMode = .continuousAutoFocus
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}
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private func initHeader() {
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header.addSubview(textField)
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header.addSubview(searchType)
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header.addSubview(settingsButton)
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}
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private func initTextFIeld() {
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textField.delegate = self
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textField.placeholder = self.getInputHint()
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}
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private func initSearchTypeButton() {
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searchType.setImage(self.buttonState.icon, for: .normal)
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searchType.addTarget(self, action: #selector(ScannerViewController.buttonTouch), for: .touchUpInside)
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}
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private func initDropDown() {
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dropDown.anchorView = settingsButton
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dropDown.dataSource = [strings["settings"]!, strings["faq"]!]
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dropDown.selectionAction = { (index: Int, item: String) in
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if index == 0 {
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self.platformChannel?.invokeMethod("settings", arguments: nil)
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} else if index == 1 {
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self.platformChannel?.invokeMethod("faq", arguments: nil)
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}
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self.dismiss(animated: false)
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}
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}
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private func initSettingsButton() {
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settingsButton.setImage(UIImage(named: "more")!, for: .normal)
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settingsButton.addTarget(self, action: #selector(ScannerViewController.settingsTouch), for: .touchUpInside)
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}
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func hideKeyboard() {
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view.endEditing(false)
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}
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func buttonTouch() {
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setButtonState()
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searchType.setImage(self.buttonState.icon, for: .normal)
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textField.placeholder = self.getInputHint()
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}
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func settingsTouch() {
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dropDown.show()
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}
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override func viewWillAppear(_ animated: Bool) {
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super.viewWillAppear(animated)
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header.backgroundColor = UIColor.white
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textField.borderStyle = .roundedRect
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capture.delegate = self
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applyOrientation()
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}
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// TODO: Вынести эту копипасту в методы, когда будет время
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override func viewWillLayoutSubviews() {
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// TODO: Надо бы уйти от констант, переписать на отступы какие-нибудь
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scanRectView.frame = view.bounds
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header.frame = CGRect(x: 0, y: 0, width: view.frame.size.width, height: 56)
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searchType.frame = CGRect(x: 8, y: 26, width: 20, height: 20)
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textField.frame = CGRect(x: searchType.frame.maxX + 8, y: 21, width: view.frame.size.width - searchType.frame.maxX - 48, height: 30)
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settingsButton.frame = CGRect(x: view.frame.size.width - 30, y: 26, width: 20, height: 20)
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var path = UIBezierPath()
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path.move(to: CGPoint(x: 32, y: view.frame.size.height / 2))
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path.addLine(to: CGPoint(x: view.frame.size.width - 32, y: view.frame.size.height / 2))
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var shapeLayer = CAShapeLayer()
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shapeLayer.path = path.cgPath
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shapeLayer.strokeColor = UIColor.red.cgColor
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shapeLayer.fillColor = UIColor.clear.cgColor
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shapeLayer.lineWidth = 2
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view.layer.addSublayer(shapeLayer)
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path = UIBezierPath()
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path.move(to: CGPoint(x: 32, y: (view.frame.size.height / 2) - 32))
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path.addLine(to: CGPoint(x: 32, y: (view.frame.size.height / 2) - 64))
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path.addLine(to: CGPoint(x: 64, y: (view.frame.size.height / 2) - 64))
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path.move(to: CGPoint(x: view.frame.size.width - 64, y: (view.frame.size.height / 2) - 64))
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path.addLine(to: CGPoint(x: view.frame.size.width - 32, y: (view.frame.size.height / 2) - 64))
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path.addLine(to: CGPoint(x: view.frame.size.width - 32, y: (view.frame.size.height / 2) - 32))
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path.move(to: CGPoint(x: 32, y: (view.frame.size.height / 2) + 32))
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path.addLine(to: CGPoint(x: 32, y: (view.frame.size.height / 2) + 64))
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path.addLine(to: CGPoint(x: 64, y: (view.frame.size.height / 2) + 64))
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path.move(to: CGPoint(x: view.frame.size.width - 32, y: (view.frame.size.height / 2) + 32))
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path.addLine(to: CGPoint(x: view.frame.size.width - 32, y: (view.frame.size.height / 2) + 64))
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path.addLine(to: CGPoint(x: view.frame.size.width - 64, y: (view.frame.size.height / 2) + 64))
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shapeLayer = CAShapeLayer()
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shapeLayer.path = path.cgPath
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shapeLayer.strokeColor = UIColor.green.cgColor
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shapeLayer.fillColor = UIColor.clear.cgColor
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shapeLayer.lineWidth = 2
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view.layer.addSublayer(shapeLayer)
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path = UIBezierPath()
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path.move(to: CGPoint(x: 0, y: 56))
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path.addLine(to: CGPoint(x: view.frame.size.width, y: 56))
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path.addLine(to: CGPoint(x: view.frame.size.width, y: (view.frame.size.height / 2) - 64))
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path.addLine(to: CGPoint(x: 0, y: (view.frame.size.height / 2) - 64))
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path.addLine(to: CGPoint(x: 0, y: 56))
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path.close()
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shapeLayer = CAShapeLayer()
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shapeLayer.path = path.cgPath
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shapeLayer.fillColor = UIColor(red: 0, green: 0, blue: 0, alpha: 0.5).cgColor
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view.layer.addSublayer(shapeLayer)
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path = UIBezierPath()
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path.move(to: CGPoint(x: 0, y: (view.frame.size.height / 2) - 64))
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path.addLine(to: CGPoint(x: 32, y: (view.frame.size.height / 2) - 64))
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path.addLine(to: CGPoint(x: 32, y: (view.frame.size.height / 2) + 64))
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path.addLine(to: CGPoint(x: 0, y: (view.frame.size.height / 2) + 64))
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path.addLine(to: CGPoint(x: 0, y: (view.frame.size.height / 2) - 64))
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path.close()
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shapeLayer = CAShapeLayer()
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shapeLayer.path = path.cgPath
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shapeLayer.fillColor = UIColor(red: 0, green: 0, blue: 0, alpha: 0.5).cgColor
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view.layer.addSublayer(shapeLayer)
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path = UIBezierPath()
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path.move(to: CGPoint(x: view.frame.size.width, y: (view.frame.size.height / 2) - 64))
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path.addLine(to: CGPoint(x: view.frame.size.width - 32, y: (view.frame.size.height / 2) - 64))
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path.addLine(to: CGPoint(x: view.frame.size.width - 32, y: (view.frame.size.height / 2) + 64))
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path.addLine(to: CGPoint(x: view.frame.size.width, y: (view.frame.size.height / 2) + 64))
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path.addLine(to: CGPoint(x: view.frame.size.width, y: (view.frame.size.height / 2) - 64))
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path.close()
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shapeLayer = CAShapeLayer()
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shapeLayer.path = path.cgPath
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shapeLayer.fillColor = UIColor(red: 0, green: 0, blue: 0, alpha: 0.5).cgColor
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view.layer.addSublayer(shapeLayer)
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path = UIBezierPath()
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path.move(to: CGPoint(x: view.frame.size.width, y: (view.frame.size.height / 2) + 64))
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path.addLine(to: CGPoint(x: 0, y: (view.frame.size.height / 2) + 64))
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path.addLine(to: CGPoint(x: 0, y: view.frame.size.height))
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path.addLine(to: CGPoint(x: view.frame.size.width, y: view.frame.size.height))
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path.addLine(to: CGPoint(x: view.frame.size.width, y: (view.frame.size.height / 2) + 64))
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path.close()
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shapeLayer = CAShapeLayer()
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shapeLayer.path = path.cgPath
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shapeLayer.fillColor = UIColor(red: 0, green: 0, blue: 0, alpha: 0.5).cgColor
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view.layer.addSublayer(shapeLayer)
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}
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func textFieldShouldReturn(_ textField: UITextField) -> Bool {
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print("User from manual input: \(textField.text!)")
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sendResult(textField.text!)
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return true
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}
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func sendResult(_ str: String) {
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platformChannel?.invokeMethod("findUser", arguments: [str, buttonState.searchType], result: { (result: Any?) in
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if result is FlutterError {
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print("Result is nil (ios code)");
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self.showErrorAlert(str)
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} else {
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print("Result is not nil (ios code)");
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self.dismiss(animated: true) {
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self.platformChannel?.invokeMethod("purchase", arguments: [result, str])
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}
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}
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})
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}
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func showErrorAlert(_ str: String) {
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let alertController = UIAlertController(
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title: strings["error"]!,
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message: String(format: self.getErrorText(), str),
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preferredStyle: UIAlertControllerStyle.alert
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)
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alertController.addAction(UIAlertAction(title: strings["dismiss"]!, style: UIAlertActionStyle.default,handler: nil))
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self.present(alertController, animated: true, completion: nil)
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}
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override func didReceiveMemoryWarning() {
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super.didReceiveMemoryWarning()
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}
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deinit {
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capture.layer.removeFromSuperlayer()
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}
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override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
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super.viewWillTransition(to: size, with: coordinator)
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coordinator.animate(alongsideTransition: {(_ context: UIViewControllerTransitionCoordinatorContext) -> Void in
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}, completion: {(_ context: UIViewControllerTransitionCoordinatorContext) -> Void in
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self.applyOrientation()
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})
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}
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func applyOrientation() {
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print("APPLY ORIENTATION")
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let orientation: UIInterfaceOrientation = UIApplication.shared.statusBarOrientation
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var scanRectRotation: Float
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var captureRotation: Float
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switch orientation {
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case .portrait:
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captureRotation = 0
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scanRectRotation = 90
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case .landscapeLeft:
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captureRotation = 90
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scanRectRotation = 180
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case .landscapeRight:
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captureRotation = 270
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scanRectRotation = 0
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case .portraitUpsideDown:
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captureRotation = 180
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scanRectRotation = 270
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default:
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captureRotation = 0
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scanRectRotation = 90
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}
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applyRectOfInterest(orientation)
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let transform = CGAffineTransform(rotationAngle: CGFloat(captureRotation / 180 * .pi))
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capture.transform = transform
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capture.rotation = CGFloat(scanRectRotation)
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capture.layer.frame = view.frame
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}
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func applyRectOfInterest(_ orientation: UIInterfaceOrientation) {
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var scaleVideo: CGFloat
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var scaleVideoX: CGFloat
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var scaleVideoY: CGFloat
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var videoSizeX: CGFloat
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var videoSizeY: CGFloat
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var transformedVideoRect: CGRect = scanRectView.frame
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videoSizeX = 720
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videoSizeY = 1280
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if UIInterfaceOrientationIsPortrait(orientation) {
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scaleVideoX = view.frame.size.width / videoSizeX
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scaleVideoY = view.frame.size.height / videoSizeY
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scaleVideo = max(scaleVideoX, scaleVideoY)
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if scaleVideoX > scaleVideoY {
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transformedVideoRect.origin.y += (scaleVideo * videoSizeY - view.frame.size.height) / 2
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}
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else {
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transformedVideoRect.origin.x += (scaleVideo * videoSizeX - view.frame.size.width) / 2
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}
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}
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else {
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scaleVideoX = view.frame.size.width / videoSizeY
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scaleVideoY = view.frame.size.height / videoSizeX
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scaleVideo = max(scaleVideoX, scaleVideoY)
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if scaleVideoX > scaleVideoY {
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transformedVideoRect.origin.y += (scaleVideo * videoSizeX - view.frame.size.height) / 2
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}
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else {
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transformedVideoRect.origin.x += (scaleVideo * videoSizeY - view.frame.size.width) / 2
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}
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}
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captureSizeTransform = CGAffineTransform(scaleX: 1 / scaleVideo, y: 1 / scaleVideo)
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capture.scanRect = transformedVideoRect.applying(captureSizeTransform!)
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}
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// MARK: - Private Methods
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func barcodeFormat(toString format: ZXBarcodeFormat) -> String {
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switch format {
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case kBarcodeFormatAztec:
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return "Aztec"
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case kBarcodeFormatCodabar:
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return "CODABAR"
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case kBarcodeFormatCode39:
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return "Code 39"
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case kBarcodeFormatCode93:
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return "Code 93"
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case kBarcodeFormatCode128:
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return "Code 128"
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case kBarcodeFormatDataMatrix:
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return "Data Matrix"
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case kBarcodeFormatEan8:
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return "EAN-8"
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case kBarcodeFormatEan13:
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return "EAN-13"
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case kBarcodeFormatITF:
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return "ITF"
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case kBarcodeFormatPDF417:
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return "PDF417"
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case kBarcodeFormatQRCode:
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return "QR Code"
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case kBarcodeFormatRSS14:
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return "RSS 14"
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case kBarcodeFormatRSSExpanded:
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return "RSS Expanded"
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case kBarcodeFormatUPCA:
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return "UPCA"
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case kBarcodeFormatUPCE:
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return "UPCE"
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case kBarcodeFormatUPCEANExtension:
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return "UPC/EAN extension"
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default:
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return "Unknown"
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}
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}
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// MARK: - ZXCaptureDelegate Methods
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func captureResult(_ capture: ZXCapture, result: ZXResult) {
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let inverse: CGAffineTransform = captureSizeTransform!.inverted()
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var points = [AnyHashable]()
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var location = ""
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for resultPoint in result.resultPoints {
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let p = resultPoint as! ZXResultPoint
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let cgPoint = CGPoint(x: CGFloat(p.x), y: CGFloat(p.y))
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var transformedPoint: CGPoint = cgPoint.applying(inverse)
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transformedPoint = scanRectView.convert(transformedPoint, to: scanRectView.window)
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let windowPointValue = NSValue(cgPoint: transformedPoint)
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location = "\(location) (\(transformedPoint.x), \(transformedPoint.y))"
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points.append(windowPointValue)
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}
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print("User from scanner: \(result.text)")
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sendResult(result.text)
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print(result.text)
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self.capture.stop()
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DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + Double(2 * Double(NSEC_PER_SEC)) / Double(NSEC_PER_SEC), execute: {() -> Void in
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self.capture.start()
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})
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}
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}
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