我目前有一个带有UIView子视图的GMSMapView,但是我无法让子视图识别出轻击手势。我已经尝试了许多解决方案,例如将isUserInteractionEnabled
设置为true并覆盖delegate
,但到目前为止还没有。
import UIKit
import GoogleMaps
class MapViewController: UIViewController, UIGestureRecognizerDelegate {
var testView: UIView!
var mapView: GMSMapView!
override func viewDidLoad() {
super.viewDidLoad()
let camera = GMSCameraPosition.camera(withLatitude: 0, longitude: 0, zoom: 15.0)
mapView = GMSMapView.map(withFrame: CGRect.zero, camera: camera)
mapView.isUserInteractionEnabled = true
self.view = mapView
let screenSize: CGRect = UIScreen.main.bounds
let screenWidth = screenSize.width
let screenHeight = screenSize.height
testView = UIView()
testView.backgroundColor = UIColor(white: 0, alpha: 0.5)
testView.frame.origin = CGPoint(x: 0, y: 0);
testView.frame.size = CGSize(width: screenWidth, height: screenHeight)
testView.isUserInteractionEnabled = true
let gesture = UITapGestureRecognizer(target: self, action: #selector(self.doSomething(_:)))
gesture.numberOfTapsRequired = 1
gesture.numberOfTouchesRequired = 1
gesture.delegate = self
self.view.addSubview(testView)
testView.addGestureRecognizer(gesture)
}
@objc func doSomething(_ sender: UIGestureRecognizer) {
print("doSomething")
}
func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldReceive touch: UITouch) -> Bool {
if (touch.view == gestureRecognizer.view) {
print("returned true")
return true
}
return false
}
}
有趣的是,当我点击testView
时,它确实从我的shouldReceiveTouch
函数打印出“返回true”。所以我不太确定委托函数如何返回true,但是选择器函数没有触发。我还尝试了另一个UIView的滑动手势,但也没有用。任何帮助表示赞赏,谢谢!
输入以下代码:
mapView.settings.consumesGesturesInView = false
来自Google Maps iOS SDK Reference:
控制在启用手势时GMSMapView是否完全使用用户的手势(默认为YES)。这可以防止父视图接收这些手势。
当GMSMapView包含在UIScrollView(或其他可滚动区域)中时,这意味着地图上的手势不会作为滚动手势被额外消耗。但是,禁用此选项(设置为NO)可能有助于支持复杂的视图层次结构或要求。