我正在尝试了解我的手势识别器的可重现错误。我在 MKMapView 上有 2 个识别器,一个 UITapGestureRecognizer 和一个 UILongPressGestureRecogniser。它们都按预期第一次工作,但是,如果我使用长按(这会向 map 添加注释),下一个点击手势将返回“可能”状态,但永远不会达到“已识别”状态。
▿ Optional<Array<UIGestureRecognizer>>
▿ some : 2 elements
- 0 : <UITapGestureRecognizer: 0x7fda7543ebc0; state = Possible; view = <MKMapView 0x7fda78026e00>>
- 1 : <UILongPressGestureRecognizer: 0x7fda7543e8c0; state = Possible; view = <MKMapView 0x7fda78026e00>; numberOfTapsRequired = 0; minimumPressDuration = 0.2>
在我点击一次后没有任何反应,第二次点击将执行关联的功能,即使其进入识别状态。
我拦截了窗口上的所有点击,每次点击肯定都会发生,但长按后的第一个点击似乎从未被接受。我在这里缺少什么吗?添加的手势如下:
let mapTap = UITapGestureRecognizer(target: self, action: #selector(mapTapped(_:)))
mapView.addGestureRecognizer(mapTap)
let pressGesture = UILongPressGestureRecognizer(target: self, action: #selector(mapLongPress(_:)))
pressGesture.minimumPressDuration = 0.2
pressGesture.numberOfTouchesRequired = 1
mapView.addGestureRecognizer(pressGesture)
这可能与默认添加到 MKMapView 的其他手势有关吗?
最佳答案
我尝试使用您的代码并得到相同的结果。
我用一个棘手的解决方案解决了它。希望对你有所帮助
mapTap = UITapGestureRecognizer(target: self, action: #selector(mapTapped(_:)))
mapTap.delegate = self
mapView.addGestureRecognizer(mapTap)
pressGesture = UILongPressGestureRecognizer(target: self, action:
#selector(mapLongPress(_:)))
pressGesture.minimumPressDuration = 0.2
pressGesture.numberOfTouchesRequired = 1
mapView.addGestureRecognizer(pressGesture)
@objc func mapTapped(_ gesture: UITapGestureRecognizer) {
// your code
}
@objc func mapLongPress(_ gesture: UILongPressGestureRecognizer) {
// your code
if gesture.state == .began {
mapTap.isEnabled = false
} else if gesture.state == .cancelled || gesture.state == .ended {
mapTap.isEnabled = true
}
}
func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool {
return true
}
关于ios - UIGestureRecognizer.State 是 'possible' 而不是 'recognized' 每隔一次点击 MKMapView,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/64208905/