如何在谷歌地图中处理标记簇中的单个标记

Question

我正在谷歌地图中实现标记聚类。我正在从 api 获取数据（经纬度列表和其他信息）。使用 google-map-ios-utils 库我正在进行聚类，但我无法将数据单独附加到集群中的每个标记。当我单击集群时，它会放大，这是完美的，但委托方法 didTapMarker 也会在集群点击时触发，因为委托方法 didtapCluster 应该被触发。而且我不知道如何在集群单击后显示时将信息附加到这些标记上。

       override func viewDidLoad() {
        super.viewDidLoad()
     let iconGenerator = GMUDefaultClusterIconGenerator()
            let algorithm = GMUNonHierarchicalDistanceBasedAlgorithm()
            let renderer = GMUDefaultClusterRenderer(mapView: self.mapView, clusterIconGenerator: iconGenerator)
            clusterManager = GMUClusterManager(map: self.mapView, algorithm: algorithm, renderer: renderer)
            renderer.delegate = self
            // clusterManager.cluster()
            clusterManager.setDelegate(self, mapDelegate: self)
     }

 func generatePOIItems(_ accessibilityLabel: String, position: CLLocationCoordinate2D, icon: UIImage?, markerValue: NSDictionary) {
        let item = POIItem(position: position, name: accessibilityLabel, markerData: markerValue)

        poitem.append(item)
        self.clusterManager.add(item)


    }
func addTocluster(){
        self.mapView.clear()
        clusterManager.clearItems()
        clsGlobal.initialService( completion: {(result)in

            print(result)
            self.arrdict = result as! NSDictionary
            let success = self.arrdict.value(forKey: "success") as! Int
            if success == 1 {

                self.locationcount = self.arrdict.value(forKey: "data") as! NSArray
                DispatchQueue.main.async {
                    for i in 0..<self.locationcount.count {
                        let locations = self.locationcount.object(at: i)as! NSDictionary
                        let lattitude = locations.value(forKey: "serviceLatitude") as! String
                        let longitude = locations.value(forKey: "serviceLongitude") as! String
                        let location:CLLocationCoordinate2D = CLLocationCoordinate2D(latitude: Double(lattitude) as! CLLocationDegrees, longitude: Double(longitude) as! CLLocationDegrees)
                        if locations.value(forKey: "companyName") is NSNull {}
                        else {
                            let name = locations.value(forKey: "companyName") as! String
                            // marker.title = "\(name)"
                        }
                        if locations.value(forKey: "iconUrl") is NSNull{}
                        self.generatePOIItems(String(format: "%d", i), position: location, icon: nil, markerValue: locations)

                    }
                    self.clusterManager.cluster()


                }
            }
        })
    }



class POIItem: NSObject, GMUClusterItem {
    var position: CLLocationCoordinate2D
    var name: String!
    var markData : NSDictionary!
    init(position: CLLocationCoordinate2D, name: String, markerData:NSDictionary) {
        self.position = position
        self.name = name
        self.markData = markerData
    }
}

这里有一些代码。 Xcode 10，快速 4

Answer 1

您需要使用“GMUDefaultClusterRenderer”“GMUClusterRendererDelegate”的委托方法。

将渲染器委托设置为self后，使用

- (void)renderer:(id<GMUClusterRenderer>)renderer willRenderMarker:(GMSMarker *)marker {
}

委托方法来获取相应的标记并向其添加信息。

您可以参考此link 了解更多信息。