如何在GoogleMaps for iOS中自定义图标标记
我正在开发一个应用程序，我想在地图上显示很多事件。 用户可以点击一个事件，并看到很多关于它的信息。 我使用自定义图像自定义了每个事件的标记图标，现在我想对每个自定义标记进行聚类。 我能够将GoogleMaps API的默认图标集群化，但是如果我想集群自己的标记图标，我无法做到这一点。
这是我现在的代码：
var mapView: GMSMapView! var clusterManager: GMUClusterManager! let isClustering: Bool = true let isCustom: Bool = true override func viewDidLoad() { super.viewDidLoad() mapView = GMSMapView(frame: view.frame) mapView.camera = GMSCameraPosition.camera(withLatitude: 13.756331, longitude: 100.501765, zoom: 12.0) mapView.mapType = .normal mapView.delegate = self view.addSubview(mapView) if isClustering { var iconGenerator: GMUDefaultClusterIconGenerator! if isCustom { // Here's my image if the event are clustered var images: [UIImage] = [UIImage(named: "m1.png")!, UIImage(named: "m2.png")!, UIImage(named: "m3.png")!, UIImage(named: "m4.png")!, UIImage(named: "m5.png")!] iconGenerator = GMUDefaultClusterIconGenerator(buckets: [5, 10, 15, 20, 25], backgroundImages: images) } else { iconGenerator = GMUDefaultClusterIconGenerator() } let algorithm = GMUNonHierarchicalDistanceBasedAlgorithm() let renderer = GMUDefaultClusterRenderer(mapView: mapView, clusterIconGenerator: iconGenerator) clusterManager = GMUClusterManager(map: mapView, algorithm: algorithm, renderer: renderer) clusterManager.cluster() clusterManager.setDelegate(self, mapDelegate: self) } else { } // Here's my personal marker icon (for one location) let firstLocation = CLLocationCoordinate2DMake(48.898902, 2.282664) let marker = GMSMarker(position: firstLocation) marker.icon = UIImage(named: "pointeurx1") //Apply custom marker marker.map = mapView let secondLocation = CLLocationCoordinate2DMake(48.924572, 2.360207) let secondMarker = GMSMarker(position: secondLocation) secondMarker.icon = UIImage(named: "pointeurx1") secondMarker.map = mapView let threeLocation = CLLocationCoordinate2DMake(48.841619, 2.253113) let threeMarker = GMSMarker(position: threeLocation) threeMarker.icon = UIImage(named: "pointeurx1") threeMarker.map = mapView let fourLocation = CLLocationCoordinate2DMake(48.858575, 2.294556) let fourMarker = GMSMarker(position: fourLocation) fourMarker.icon = UIImage(named: "pointeurx1") fourMarker.map = mapView let fiveLocation = CLLocationCoordinate2DMake(48.873819, 2.295200) let fiveMarker = GMSMarker(position: fiveLocation) fiveMarker.icon = UIImage(named: "pointeurx1") fiveMarker.map = mapView } /// Point of Interest Item which implements the GMUClusterItem protocol. class POIItem: NSObject, GMUClusterItem { var position: CLLocationCoordinate2D var name: String! init(position: CLLocationCoordinate2D, name: String) { self.position = position self.name = name } } func clusterManager(_ clusterManager: GMUClusterManager, didTap cluster: GMUCluster) { let newCamera = GMSCameraPosition.camera(withTarget: cluster.position, zoom: mapView.camera.zoom + 1) let update = GMSCameraUpdate.setCamera(newCamera) mapView.moveCamera(update) } } 我该怎么做？
看看我的应用程序的这些截图，那么也许你可以更好地理解我的问题。
首先是Google Maps的红色默认标记图标，您可以在蓝色中看到我的项目中添加的集群图标。 然后你明白我在viewDidLoad（）上添加了一些位置，那么红色标记就是这样。 您还可以看到另外两个不同的标记，谷歌一个是橙色的，另一个是我想要用于位置的每个标记图标的个人标记图标。 但是你也可以看到这个问题，问题是蓝色的集群图标不要添加我在地图上添加的标记图标（在蓝色的集群图标里面显示4个，它是它周围的4个图标，但是当蓝色的集群图标出现它周围的标记图标不会消失。
第二张图片，如果我进行缩放，蓝色群集图标会消失，但是您也可以看到另一个问题，我添加的位置上方会显示另外一个红色的Google地图默认标记图标（您可以看到更less，因为我的个人橙色标记图标
你实际上是首先聚集，然后添加标记这就是为什么发生这种情况。
你应该做的是
class MarkerModel: NSObject, GMUClusterItem { var position: CLLocationCoordinate2D var name: String init(position: CLLocationCoordinate2D, name: String) { self.position = position self.name = name } } override func viewDidLoad() { super.viewDidLoad() mapView = GMSMapView(frame: view.frame) mapView.camera = GMSCameraPosition.camera(withLatitude: 13.756331, longitude: 100.501765, zoom: 12.0) mapView.mapType = .normal mapView.delegate = self view.addSubview(mapView) if isClustering { var iconGenerator: GMUDefaultClusterIconGenerator! if isCustom { // Here's my image if the event are clustered var images: [UIImage] = [UIImage(named: "m1.png")!, UIImage(named: "m2.png")!, UIImage(named: "m3.png")!, UIImage(named: "m4.png")!, UIImage(named: "m5.png")!] iconGenerator = GMUDefaultClusterIconGenerator(buckets: [5, 10, 15, 20, 25], backgroundImages: images) } else { iconGenerator = GMUDefaultClusterIconGenerator() } let algorithm = GMUNonHierarchicalDistanceBasedAlgorithm() let renderer = GMUDefaultClusterRenderer(mapView: mapView, clusterIconGenerator: iconGenerator) clusterManager = GMUClusterManager(map: mapView, algorithm: algorithm, renderer: renderer) } else { } } func addMarkers(cameraLatitude : Float, cameraLongitude : Float) { let extent = 0.01 for index in 1...clusterItemCount { let lat = cameraLatitude + extent * randomScale() let lng = cameraLongitude + extent * randomScale() let name = "Item \(index)" let position = CLLocationCoordinate2DMake(lat, lng) let item = MarkerModel(position: position, name: name) item.icon = #imageLiteral(resourceName: "marker") clusterManager.add(item) } clusterManager.cluster() clusterManager.setDelegate(self, mapDelegate: self) } func randomScale() -> Double { return Double(arc4random()) / Double(UINT32_MAX) * 2.0 - 1.0 } func renderer(_ renderer: GMUClusterRenderer, markerFor object: Any) -> GMSMarker? { let marker = GMSMarker() if let model = object as? MarkerModel { // set image view for gmsmarker } return marker } func clusterManager(_ clusterManager: GMUClusterManager, didTap cluster: GMUCluster) -> Bool { let newCamera = GMSCameraPosition.camera(withTarget: cluster.position, zoom: mapView.camera.zoom + 1) let update = GMSCameraUpdate.setCamera(newCamera) mapView.moveCamera(update) return false }