使用volley获取位置数据并在Google地图中创建多个标记

dependencies {
    implementation 'com.android.volley:volley:1.2.1'
}

RequestQueue requestQueue;
GoogleMap googleMap;

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

    requestQueue = Volley.newRequestQueue(this);
    SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
            .findFragmentById(R.id.map);
    mapFragment.getMapAsync(this);
}

@Override
public void onMapReady(GoogleMap map) {
    googleMap = map;

    // 使用Volley发送网络请求获取位置数据
    String url = "http://example.com/location_data.json";
    JsonObjectRequest request = new JsonObjectRequest(Request.Method.GET, url, null,
            new Response.Listener<JSONObject>() {
                @Override
                public void onResponse(JSONObject response) {
                    try {
                        JSONArray locations = response.getJSONArray("locations");

                        // 遍历位置数据并在地图上创建标记
                        for (int i = 0; i < locations.length(); i++) {
                            JSONObject location = locations.getJSONObject(i);
                            double latitude = location.getDouble("latitude");
                            double longitude = location.getDouble("longitude");
                            String name = location.getString("name");

                            LatLng latLng = new LatLng(latitude, longitude);
                            googleMap.addMarker(new MarkerOptions().position(latLng).title(name));
                        }
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                }
            },
            new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {
                    error.printStackTrace();
                }
            });

    // 将请求添加到请求队列中
    requestQueue.add(request);
}

<fragment
    android:id="@+id/map"
    android:name="com.google.android.gms.maps.SupportMapFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />