Marker Movement from source to destination如何正確沿着折線移動標記?
圖像顯示標記運動是僅在一個方向標記的直線。 我想沿標記方向移動我的標記沿多段線應該隨着多段線方向改變。如何實現這一點。 我當前的代碼是這樣的:
類MapScreenVC:BaseVC {
var path = GMSMutablePath()
var arrayCoordinates : [CLLocationCoordinate2D] = []
var destCoord = CLLocationCoordinate2D()
var marker = GMSMarker()
var mapView : GMSMapView? = nil
override func viewDidLoad() {
super.viewDidLoad()
let camera = GMSCameraPosition.camera(withLatitude: 53.4545, longitude: -2.1811, zoom: 14)
mapView = GMSMapView.map(withFrame: .zero, camera: camera)
marker = GMSMarker()
marker.position = CLLocationCoordinate2DMake(53.4387, -2.1827)
marker.title = "Source"
marker.snippet = "Source"
marker.icon = UIImage(named: "car")
marker.map = mapView
let DestinationMarker = GMSMarker()
self.destCoord = CLLocationCoordinate2DMake(53.4645, -2.1873)
DestinationMarker.position = CLLocationCoordinate2DMake(53.4643, -2.1869)
DestinationMarker.title = "Destination"
DestinationMarker.snippet = "Destination"
DestinationMarker.icon = UIImage(named: "home")
DestinationMarker.map = mapView
//折線
path.addLatitude(53.4395, longitude:-2.1834)
path.addLatitude(53.4403, longitude:-2.1854)
path.addLatitude(53.4414, longitude:-2.1852)
path.addLatitude(53.4428, longitude:-2.1832)
path.addLatitude(53.4442, longitude:-2.1818)
path.addLatitude(53.4449, longitude:-2.1801)
path.addLatitude(53.4478, longitude:-2.1793)
path.addLatitude(53.4504, longitude:-2.1798)
path.addLatitude(53.4526, longitude:-2.1806)
path.addLatitude(53.4545, longitude:-2.1811)
path.addLatitude(53.4564, longitude:-2.1811)
path.addLatitude(53.4584, longitude:-2.1811)
path.addLatitude(53.4601, longitude:-2.1811)
path.addLatitude(53.4617, longitude:-2.1821)
path.addLatitude(53.4630, longitude:-2.1829)
path.addLatitude(53.4632, longitude:-2.1851)
path.addLatitude(53.4635, longitude:-2.1869)
path.addLatitude(53.4638, longitude:-2.1882)
path.addLatitude(53.4645, longitude:-2.1873)
let polyline = GMSPolyline(path: path)
polyline.strokeColor = .blue
polyline.strokeWidth = 6.0
polyline.geodesic = true
polyline.map = mapView
updateMarker(coordinates: destCoord)
view = mapView
}
func updateMarker(coordinates: CLLocationCoordinate2D) {
CATransaction.begin()
CATransaction.setAnimationDuration(10.0)
marker.position = coordinates
CATransaction.commit()
}
}
如何u實現這一目標?請幫助我,如何處理? –