Сохранить рисунок в галерее в Swift 5 - PullRequest
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Сохранить рисунок в галерее в Swift 5

0 голосов
/ 10 июля 2019

Я пытаюсь сохранить рисунок в своей фотогалерее, но он не сохраняется. Вот код, который я использую, чтобы нарисовать UIImageView. Save right func сохраняет фото. 

var nextPage = UIButton()
var clear = UIButton()
var submitToDB = UIButton()
var drawPlace = UIImageView()
var myLayer = CALayer()
var path = UIBezierPath()
var startPoint = CGPoint()
var touchPoint = CGPoint()

func addArrowImageToButton(button: UIButton, arrowImage:UIImage = #imageLiteral(resourceName: "bb") ) {
    let btnSize:CGFloat = 32
    let imageView = UIImageView(image: arrowImage)
    let btnFrame = button.frame    
    button.bringSubviewToFront(imageView)
}

override func viewDidAppear(_ animated: Bool) {    
    self.addArrowImageToButton(button: submitToDB)
}

func setup(){
    submitToDB.layer.cornerRadius = 0
    drawPlace.clipsToBounds = true
    drawPlace.isMultipleTouchEnabled = false
}

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    let touch = touches.first
    if let point = touch?.location(in: drawPlace){
        startPoint = point

    }
}

override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?) {
    let touch = touches.first
    if let point = touch?.location(in: drawPlace){
        touchPoint = point
    }

    path.move(to: startPoint)
    path.addLine(to: touchPoint)
    startPoint = touchPoint
    draw()
}

func draw() {
    let strokeLayer = CAShapeLayer()
    strokeLayer.fillColor = nil
    strokeLayer.lineWidth = 5
    strokeLayer.strokeColor = UIColor.blue.cgColor
    strokeLayer.path = path.cgPath
    drawPlace.layer.insertSublayer(strokeLayer, below: myLayer)
    drawPlace.setNeedsDisplay()
}

override func viewDidLoad() {
    super.viewDidLoad()        
    setup()
    draw()
}

func save() {
    guard let selectedImage = drawPlace.image else {
        print("Image not found!")
        return
    }
    UIImageWriteToSavedPhotosAlbum(selectedImage, self, #selector(image(_:didFinishSavingWithError:contextInfo:)), nil)
}

//MARK: - Add image to Library
@objc func image(_ image: UIImage, didFinishSavingWithError error: Error?, contextInfo: UnsafeRawPointer) {
    if let error = error {
        // we got back an error!
        showAlertWith(title: "Save error", message: error.localizedDescription)
    } else {
        showAlertWith(title: "Saved!", message: "Your image has been saved to your photos.")
    }
}

func showAlertWith(title: String, message: String){
    let ac = UIAlertController(title: title, message: message, preferredStyle: .alert)
    ac.addAction(UIAlertAction(title: "OK", style: .default))
    present(ac, animated: true)
}

@objc func moveRight() {
    save()
}
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