Question

我在swift / xcode中非常新，我遇到了UIPanGestureRecognizer的问题。我试图做一个滑动菜单，当你＆＃34; pan＆＃34;他。滑动菜单运行良好，我可以通过平移菜单（UIViews）来滑动它。但是这个菜单必须在开头隐藏。所以我放了一个小箭头。这是问题...我想要一个UIpanGestureRecognizer，他做了前一个相同的动作。当然，当我正在平移箭头时。所以，这是代码谁工作：

// all is working with this code. handlePan is working well.
var panGestureRecognizer:UIPanGestureRecognizer!
panGestureRecognizer = UIPanGestureRecognizer(target: self, action: "handlePan:")
self.addGestureRecognizer(panGestureRecognizer)

这就是我为箭头尝试的内容：

let mysubView = UIView()
let arrowView = UIImageView()
let imageName = "arrow"
let image = UIImage(named: imageName)
let imageView = UIImageView(image: image!)

var panGestureRecognizerArrow:UIPanGestureRecognizer!


//put subview bellow the menu
mysubView.frame = CGRect(x: self.bounds.size.width / 2 - 15, y: self.bounds.height, width: 30, height: 30)
//put arrow bellow the menu
imageView.frame = CGRect(x: self.bounds.size.width / 2 - 5, y: self.bounds.height, width: 10, height: 10)

addSubview(imageView)
//put a invisible subview over image, to have a bigger "hit box"
addSubview(mysubView)

//I think the problem is HERE
panGestureRecognizerArrow = UIPanGestureRecognizer(target: mysubView, action: "handlePan:")
self.addGestureRecognizer(panGestureRecognizerArrow)
//it did'nt passed by the handlePan function when I pan mysubView. There is debug console out in it.

像上述评论一样，我认为问题出现在最后两行。有人知道什么是错的吗？

Answer 1

您应该将UIPanGestureRecognizer附加到mysubView：

panGestureRecognizerArrow = UIPanGestureRecognizer(target: self, action: "handlePan:")
mysubView.addGestureRecognizer(panGestureRecognizerArrow)

对于在屏幕边缘附近开始的平移手势，您也可以使用UIScreenEdgePanGestureRecognizer。

IOS Swift：2个不同视图的UIPanGestureRecognizer

1 个答案: