检测UIImage中处于滚动视图中的触摸位置

Question

我有以下UI层次结构:

UIView - > UIScrollView - > UIImageView

这是必要的,因为我想放大和缩小我的图像.到目前为止一切都很好,一切正常.现在我想检测图像的触摸位置.我已经阅读了很多,如果我只是在UIView中有一个UIImage,它就有效.不幸的是我需要它用于第一个描述的层次结构

class TestController: UIViewController, UIScrollViewDelegate {

    @IBOutlet weak var scrollView: UIScrollView!
    @IBOutlet weak var myImageView: UIImageView!
    @IBOutlet var myGestureRecognizer: UITapGestureRecognizer!

    override func viewDidLoad() {
        super.viewDidLoad()

        self.myImageView.addGestureRecognizer(myGestureRecognizer)
        myImageView.userInteractionEnabled = true

    }

    override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
        let touch = touches.anyObject()! as UITouch
        let location = touch.locationInView(self.myImageView)
        println(location)
    }

    func viewForZoomingInScrollView(scrollView: UIScrollView) -> UIView? {
        return self.myImageView
    }

    .....
}

我试图将"myGestureRecognizer"添加到UIView以及UIImageView甚至所有3(UIView,UIScrollView,UIImageView).它对我不起作用,我不知道该怎么办.

如何在UIImageView中检测触摸的位置(只需单击),UIImageView放在UIScrollView中？

提前致谢!

Answer 1

func didTapImage(gesture: UIGestureRecognizer) {
    let point = gesture.locationInView(gesture.view)
}


override func viewDidLoad() {
    super.viewDidLoad()

    let imgView = UIImageView()
    imgView.userInteractionEnabled = true // IMPORTANT
    imgView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: "didTapImage:"))
}

在UIImageView上,userInteractionEnabled默认为false,不会注册触摸.