android – 使用ClusterManager时如何在Map上更新标记

我试图用服务器中的新数据更新我的地图,但我无法弄清楚如何从地图中删除旧项目(标记和集群 – 使用ClusteRMANager)( – 在我看来,我只能在ClusteRMANager中添加.

我有BroadcastReceiver,当有新数据时它会获得意图.我正在尝试这样的事情:(但它在“… getMarkers().clear();”上给了我UnsupportedoperationException.“

@H_301_4@private BroadcastReceiver myrefrestMapBroadcastReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context,Intent intent) { Log.d(tag,"onReceive"); mClusteRMANager.clearItems(); mClusteRMANager.getMarkerCollection().getMarkers().clear(); mClusteRMANager.getClusterMarkerCollection().getMarkers().clear(); mClusteRMANager.addItems(LOCATIOnGetter.getReports()); } };

我添加的数据仅用于此功能.

@H_301_4@java.util.Collection<Marker> userCollection = mClusteRMANager.getMarkerCollection().getMarkers(); ArrayList<Marker> userList = new ArrayList<Marker>(userCollection); // Now is userList empty for(Marker marker: userList){ marker.remove(); } java.util.Collection<Marker> userCollection2 = mClusteRMANager.getClusterMarkerCollection().getMarkers(); ArrayList<Marker> userList2 = new ArrayList<Marker>(userCollection2); // Now is userList2 empty for(Marker marker: userList2){ marker.remove(); } mClusteRMANager.addItems(LOCATIOnGetter.getReports());