我有一个 ScrollView
,里面有一个 ImageView
。
在这里,用户可以在图像上选择一个点,它会打印出坐标。
我也在尝试将图像(“图钉”)添加到点击的坐标,但不确定如何...
// MARK: - Outlets
@IBOutlet weak var containerView: UIView!
@IBOutlet weak var scrollView: UIScrollView!
@IBOutlet weak var sharkImage: UIImageView!
// MARK: - View Did Load
override func viewDidLoad() {
super.viewDidLoad()
scrollView.minimumZoomScale = 1.0
scrollView.maximumZoomScale = 6.0
scrollView.delegate = self
let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(tapAction))
self.sharkImage.isUserInteractionEnabled = true
self.sharkImage.addGestureRecognizer(tapGestureRecognizer)
}
// MARK: - Scroll View
func viewForZooming(in scrollView: UIScrollView) -> UIView? {
return sharkImage
}
// MARK: - Functions
func tapAction(sender: UITapGestureRecognizer) {
// Get points for the UIImageView
let touchPoint = sender.location(in: self.sharkImage)
print(touchPoint)
// Get points from the image itself
let z1 = touchPoint.x * (sharkImage.image?.size.width)! / sharkImage.frame.width
let z2 = touchPoint.y * (sharkImage.image?.size.height)! / sharkImage.frame.height
print("Touched point (\(z1), \(z2)")
}
最佳答案
在你的tapAction
中:
let pin = UIImageView(frame: CGRect(x: touchPoint.x - 20, y: touchPoint.y - 20, width: 40, height: 40))
pin.image = UIImage(named: "pin")
sharkImage.addSubview(pin)
所以我正在做的是添加一个新的 UIImageView
以及来自 touchPoint.x
的 x
和 y
> 和 touchPoint.y
到您当前的 sharkImage
。
关于ios - 从用户点击快速将图像添加到 UIImageView,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/44471242/