添加标题为标记在谷歌地图集群 [英] Add Title to Marker in Google Map Cluster

问题描述

我创建一个应用程序与数百个标记，所以我决定实施集群是一个好主意。不过，我碰到添加标题到集群中的标记的问题。我需要这个数据，当我创建标记的信息窗口以后检索JSON项目。所以，总结一下我的问题是，如何将添加一个字符串作为标题到每个标记在一个集群中。

I'm creating an app with hundreds of markers so I decided implementing clustering was a good idea. However, I've run into the problem of adding a title to the markers in the cluster. I need this data to later retrieve items from JSON when I create the marker's info window. So to sum up my question is, how would I add a String as a title to each Marker in a cluster.

我目前的code：

public class MyItem implements ClusterItem {
    private final LatLng mPosition;

    public MyItem(double lat, double lng) {
        mPosition = new LatLng(lat, lng);
    }

    @Override
    public LatLng getPosition() {
        return mPosition;
    }
}

for (int i = 0; i < activity.m_jArry.length(); i++)
    {
        JSONObject j;
        try {
            j = activity.m_jArry.getJSONObject(i);
            mClusterManager.addItem(new MyItem(j.getDouble("lat"), j.getDouble("lon")));
            //mMap.addMarker(new MarkerOptions().title(j.getString("Unique")).snippet(i + "").position(new LatLng(j.getDouble("lat"), j.getDouble("lon"))));
        } catch (JSONException e) {
            e.printStackTrace();
        }
    }

感谢任何帮助：）

Thanks for any help :)

推荐答案

有对你是一个全球性的解决方案，帮助添加标题，摘要和图标，这样你可以得到你想要的东西。

there is a global solution for you that help to add title, snippet and icon so you can get what you want.

修改您的ClusterItem对象，并添加3个变量：

Modify your ClusterItem Object and add 3 variables :

public class MyItem implements ClusterItem {

private final LatLng mPosition;
BitmapDescriptor icon;
String title;
String snippet;

public MyItem(BitmapDescriptor ic,Double lat , Double lng,String tit ,String sni)
{
    mPosition = new LatLng(lat,lng);
    icon = ic;
    title = tit;
    snippet = sni;

}

和创建后，你的服装渲染：

And after you create your costume render :

public class OwnRendring extends DefaultClusterRenderer<MyItem> {

    public OwnRendring(Context context, GoogleMap map,
                           ClusterManager<MyItem> clusterManager) {
        super(context, map, clusterManager);
    }


    protected void onBeforeClusterItemRendered(MyItem item, MarkerOptions markerOptions) {

        markerOptions.icon(item.getIcon());
        markerOptions.snippet(item.getSnippet());
        markerOptions.title(item.getTitle());
        super.onBeforeClusterItemRendered(item, markerOptions);
    }
}

之后，只是把这个线你SetUpCluster（）为addItems（）函数前：

After that just put this line in your SetUpCluster() function before addItems():

 mClusterManager.setRenderer(new OwnRendring(getApplicationContext(),mMap,mClusterManager));

这篇关于添加标题为标记在谷歌地图集群的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！