java - 从未调用 DefaultClusterRenderer onClusterItemUpdated() 中的 GoogleMaps 标记聚类方法

Question

我正在使用 Google Maps Android Marker Clustering Utility，我想更改地图上的标记位置。为此，我已经覆盖DefaultClusterRenderer并将其设置为我的ClusterManager. 问题是，每当我更新集群管理器项或删除并再次添加它时，onClusterItemUpdated我的渲染器中的方法永远不会被调用。我希望它被调用的原因 - 它为Marker实例提供了我想要更改的位置。

所以，我想知道如何调用该onClusterItemUpdated方法。

我的代码如下。

注意：当标记在缩小地图时聚集在一起并在缩小标记时再次分离时，将获取所需的更新位置。

我的渲染器

public class MyClusterRenderer extends DefaultClusterRenderer<MyClusterItem> {

    private GoogleMap map;

    public MyClusterRenderer(Context context, GoogleMap map, ClusterManager<MyClusterItem> clusterManager) {
        super(context, map, clusterManager);
        this.setMinClusterSize(2);
        this.map  = map;
    }

    @Override
    protected void onBeforeClusterItemRendered(MyClusterItem myClusterItem, MarkerOptions markerOptions) {
        markerOptions
                .icon(myClusterItem.getIcon())
                .title(myClusterItem.getTitle());
    }


    @Override
    protected void onClusterItemUpdated(MyClusterItem myClusterItem, Marker marker) {

        super.onClusterItemUpdated(myClusterItem, marker);
        if (!marker.getPosition().equals(myClusterItem.getPosition())) {
            marker.setPosition(myClusterItem.getPosition());
        }
        marker.setIcon(myClusterItem.getIcon());
        marker.setTitle(myClusterItem.getTitle());
    }

    @Override
    protected void onBeforeClusterRendered(Cluster<MyClusterItem> cluster, MarkerOptions markerOptions) {
        super.onBeforeClusterRendered(cluster, markerOptions);
    }
    
    @Override
    protected void onClusterUpdated(Cluster<MyClusterItem> cluster, Marker marker) {
   
        super.onClusterUpdated(cluster, marker);
    }

}

我的集群项目

public class MyClusterItem implements ClusterItem {
    private LatLng position;
    private final String title;
    private final String snippet;
    private BitmapDescriptor icon;
    private String friendId;

    public MyClusterItem(LatLng latlng, String title, String snippet, BitmapDescriptor icon, String friendId) {
        this.position = latlng;
        this.title = title;
        this.snippet = snippet;
        this.icon = icon;
        this.friendId = friendId;
    }

    /// HERE GETTERS AND SETTERS///
}

在我的片段中使用标记聚类

private void setClusterManager(){
    clusterManager = new ClusterManager<MyClusterItem>(getActivity(), mMap);
    clusterManager.setRenderer(new MyClusterRenderer(getActivity(), mMap, clusterManager));
    clusterManager.setOnClusterItemClickListener(this);
    mMap.setOnCameraIdleListener(clusterManager);
}

//--------//

private void putClusterItem(){
    MyClusterItem clusterItem = new MyClusterItem(latLng, "Title", "Snippet", icon, friendId);
    clusterManager.addItem(clusterItem);
}

//--------//

private void updateClusterItem(){
    boolean updated = clusterManager.updateItem(clusterItem); // It gives true, but onClusterItemUpdated() is not called
    Log.d("updateItem", "Updated: " + updated); 
    clusterManager.cluster();
}

标签： javaandroidgoogle-mapscluster-manager