[英]Resizable GMSCircle GoogleMaps SDK for iOS
有没有办法调整(缩小和扩展)GMSCircle对象? 我创建了GMSCircle
并将其附加到我们的地图中
var cirlce: GMSCircle!
let camera = GMSCameraPosition.cameraWithLatitude(-33.86, longitude: 151.20, zoom: 6)
mapView = GMSMapView.mapWithFrame(CGRectZero, camera: camera)
cirlce = GMSCircle(position: camera.target, radius: 100000)
cirlce.fillColor = UIColor.redColor().colorWithAlphaComponent(0.5)
cirlce.map = mapView
我想让circle
响应我的手势来调整大小并获得其圆圈的半径值。 例如,有它的一个网络版本在这里 。
那么如何创造呢? 任何帮助,将不胜感激。 谢谢!
@IBOutlet weak var googleMaps: GMSMapView!
//Slider object to zoom in out the GMSCricle
@IBOutlet weak var sliderer: UISlider!
var cirlce: GMSCircle!
var zoom: Float = 14.0
var circleSliderZooming: Double = 1000
var circleCenter = CLLocationCoordinate2D()
var locationManager = CLLocationManager()
override func viewDidLoad() {
super.viewDidLoad()
locationManager = CLLocationManager()
locationManager.delegate = self
locationManager.requestWhenInUseAuthorization()
locationManager.startUpdatingLocation()
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.startMonitoringSignificantLocationChanges()
self.circleview(redius: 1000)
//Your map initiation code
let camera = GMSCameraPosition.camera(withLatitude: -7.9293122, longitude: 112.5879156, zoom: zoom)
self.googleMaps.camera = camera
self.googleMaps.delegate = self
self.googleMaps?.isMyLocationEnabled = true
self.googleMaps.settings.myLocationButton = true
self.googleMaps.settings.compassButton = true
self.googleMaps.settings.zoomGestures = true
}
func circleview(redius:Double) {
circleCenter = CLLocationCoordinate2D(latitude: -7.9293122, longitude: 112.5879156)
cirlce = GMSCircle(position: circleCenter, radius: redius)
cirlce.fillColor = UIColor(red: 0, green: 0, blue: 0.3, alpha: 0.2)
cirlce.strokeColor = .blue
cirlce.strokeWidth = 2
cirlce.map = googleMaps
}
func mapView(_ mapView: GMSMapView, didChange position: GMSCameraPosition) {
cirlce.position = position.target
}
//This is the Slider function to zoom in and out by Slider on View Controller
@IBAction func cricleZoom(_ sender: Any) {
cirlce.radius = CLLocationDistance(sliderer.value)
}
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