小编Jac*_*tin的帖子

目前我正在尝试更改群集图标的颜色(默认为蓝色),但我似乎无法弄明白.我已经设置了我的集群管理器等,我可以看到图标本身,但它是蓝色的.我目前正在使用默认的Google设置(请参阅下面的代码)来设置我的地图.任何帮助,将不胜感激

谢谢,

雅各

public class MainActivity extends Activity {
    GoogleMap map;
    ClusterManager mClusterManager;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        MapFragment mapFragment = (MapFragment) getFragmentManager()
                .findFragmentById(R.id.map);
        map = mapFragment.getMap();
        setUpClusterer();
    }
    private void setUpClusterer() {
        // Declare a variable for the cluster manager.


        // Position the map.
        map.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(51.503186, -0.126446), 10));

        // Initialize the manager with the context and the map.
        // (Activity extends context, so we can pass 'this' in the constructor.)
        mClusterManager = new ClusterManager<MyItem>(this, map);

        // …

我试图JSON在我的谷歌地图上为我的应用程序创建标记,但由于某种原因,它们没有显示出来.logcat没有错误或警告,但标记没有显示.

我的JSON托管在这里:https://api.myjson.com/bins/4jb09

这是我的Java:

package com.example.toshiba.jsonmap;

import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.util.Log;

import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

/**
 * @author saxman
 */
public class MainActivity extends FragmentActivity {
    private static final String LOG_TAG = "ExampleApp";

    private static final String SERVICE_URL = "https://api.myjson.com/bins/4jb09";

    protected GoogleMap map;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        setUpMapIfNeeded();
    }

    @Override
    protected void onResume() …