本文介绍了地图集群 - 最大缩放标记仍然聚集的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在使用android maps utils来聚合google maps api v2上的标记。它运行良好,但是当我添加了2000多个标记时,在最大缩放上它仍然是聚集的(标记仍然有数字): i.stack.imgur.com/pDd2Q.pngalt =2000+ marker>
这是我用标记填充地图的方法:
public void getRiverData(String state,String type){
URL = getResources()。getString(R.string.base_url)+ state +/+ type
+ getResources()。getString(R .string.end_url);
SimpleXmlRequest< XMLData> simpleRequest = new SimpleXmlRequest< XMLData>(
URL,XMLData.class,new Response.Listener< XMLData>(){
$ b @Override
public void onResponse(XMLData response){
//使用上下文和映射初始化管理器
//(Activity扩展上下文,所以我们可以在
中传递'this'//构造函数。)
mClusterManager = new ClusterManager< MarkerItem>(
getActivity(),map);
mClusterManager.setRenderer(new ClusterRenderer(
getActivity(),map,mClusterManager)) ;
//响应对象
waterItemsList = response.getNews();
$ b $ for(News item:waterItemsList){
if(item.getRiver_name ()!= null
&安培;&安培; item.getRiver_name()!=){
water_level_value = item.getWater_level_value();
if(water_level_value!= null
&&!water_level_value.equals(0)
&&!water_level_value.equals()){
MarkerItem offsetItem = new MarkerItem(item);
mClusterManager.addItem(offsetItem);
}
map.setOnMarkerClickListener(mClusterManager);
map.setInfoWindowAdapter(new InfoWindowAdapter(){
@Override
public View getInfoWindow(Marker marker){
return null;
}
@Override
public View getInfoContents(Marker marker){
try {
View v = getActivity()
.getLayoutInflater()
.inflate(
R.layout.marker_info,
null);
TextView title =(TextView)v
.findV iewById(R.id.tvMarkerTitle);
TextView info =(TextView)v
.findViewById(R.id.tvMarkerInfo);
title.setText(marker.getTitle()
.toString());
info.setText(marker.getSnippet()
.toString());
return v;
} catch(Exception e){
//kliknięciew cluster
return null;
}
}
});
}
}
map.setOnCameraChangeListener(mClusterManager);
map.setOnInfoWindowClickListener(mClusterManager);
mClusterManager.cluster();
$ b},new Response.ErrorListener(){
@Override
public void onErrorResponse(VolleyError error){
//错误对象
error.printStackTrace();
}
});
AppController.getInstance()。addToRequestQueue(simpleRequest);
}
任何人都可以帮我吗?为什么它不起作用?
解决方案
您可以扩展DefaultClusterRenderer类并将最小标记设置为集群。 b
public class InfoMarkerRenderer扩展了DefaultClusterRenderer< MyCustomMarker> {
public InfoMarkerRenderer(Context context,GoogleMap map,ClusterManager< MyCustomMarker> clusterManager){
super(context,map,clusterManager);
//构造函数
}
@Override
保护无效onBeforeClusterItemRendered(最终MyCustomMarker infomarker,MarkerOptions markerOptions){
//您可以更改标记选项
}
@Override
protected boolean shouldRenderAsCluster(Cluster cluster){
return cluster.getSize()> 5; //如果标记< = 5,则不聚类
}
}
I'm using android maps utils for clustering the markers on google maps api v2. It worked fine, but when I added 2000+ markers, on max zoom it is still clustered (markers still have numbers):
Here is my method for filling map with markers:
public void getRiverData(String state, String type) {
URL = getResources().getString(R.string.base_url) + state + "/" + type
+ getResources().getString(R.string.end_url);
SimpleXmlRequest<XMLData> simpleRequest = new SimpleXmlRequest<XMLData>(
URL, XMLData.class, new Response.Listener<XMLData>() {
@Override
public void onResponse(XMLData response) {
// Initialize the manager with the context and the map.
// (Activity extends context, so we can pass 'this' in
// the constructor.)
mClusterManager = new ClusterManager<MarkerItem>(
getActivity(), map);
mClusterManager.setRenderer(new ClusterRenderer(
getActivity(), map, mClusterManager));
// response Object
waterItemsList = response.getNews();
for (News item : waterItemsList) {
if (item.getRiver_name() != null
&& item.getRiver_name() != "") {
water_level_value = item.getWater_level_value();
if (water_level_value != null
&& !water_level_value.equals(0)
&& !water_level_value.equals("")) {
MarkerItem offsetItem = new MarkerItem(item);
mClusterManager.addItem(offsetItem);
}
map.setOnMarkerClickListener(mClusterManager);
map.setInfoWindowAdapter(new InfoWindowAdapter() {
@Override
public View getInfoWindow(Marker marker) {
return null;
}
@Override
public View getInfoContents(Marker marker) {
try {
View v = getActivity()
.getLayoutInflater()
.inflate(
R.layout.marker_info,
null);
TextView title = (TextView) v
.findViewById(R.id.tvMarkerTitle);
TextView info = (TextView) v
.findViewById(R.id.tvMarkerInfo);
title.setText(marker.getTitle()
.toString());
info.setText(marker.getSnippet()
.toString());
return v;
} catch (Exception e) {
// kliknięcie w cluster
return null;
}
}
});
}
}
map.setOnCameraChangeListener(mClusterManager);
map.setOnInfoWindowClickListener(mClusterManager);
mClusterManager.cluster();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
// error Object
error.printStackTrace();
}
});
AppController.getInstance().addToRequestQueue(simpleRequest);
}
Can anyone help me? Why is it not working?
解决方案
You can extend DefaultClusterRenderer class and set minimum markers to cluster.
public class InfoMarkerRenderer extends DefaultClusterRenderer<MyCustomMarker> {
public InfoMarkerRenderer(Context context, GoogleMap map, ClusterManager<MyCustomMarker> clusterManager) {
super(context, map, clusterManager);
//constructor
}
@Override
protected void onBeforeClusterItemRendered(final MyCustomMarker infomarker, MarkerOptions markerOptions) {
// you can change marker options
}
@Override
protected boolean shouldRenderAsCluster(Cluster cluster) {
return cluster.getSize() > 5; // if markers <=5 then not clustering
}
}
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