android 应用中未添加 KML 图层

Question

我正在尝试在地图上添加一个包含 2000 个位置的图层。代码应该可以工作，它显示了添加 KML 图层的 try 块已完成，但地图上没有显示任何内容。

经进一步检查，我相信这一定是我在 google 地图中生成的 KML 文件的问题。这是因为我下载的示例 KML 文件运行良好，而不是我生成的文件？

public class MapsActivity 扩展 FragmentActivity 实现 OnMapReadyCallback {

private GoogleMap mMap;
private boolean gotLocation = false;
GPSTracker gps;
double latitude;
double longitude;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_maps);
    // Obtain the SupportMapFragment and get notified when the map is ready to be used.
    SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
            .findFragmentById(R.id.map);
    mapFragment.getMapAsync(this);

    Intent i = getIntent();

    gps = new GPSTracker(this);
    latitude = gps.getLatitude();
    longitude = gps.getLongitude();
    Toast.makeText(this, "WE HAVE GOT YOUR LOCATION: LATITUDE = " + latitude + "LONGITUDE = " + longitude, Toast.LENGTH_LONG).show();




}

@Override
public void onMapReady(GoogleMap googleMap) {
    mMap = googleMap;
    mMap.setMyLocationEnabled(true);
    mMap.addMarker(new MarkerOptions().position(new LatLng(latitude, longitude)).title("Current Position"));
    mMap.moveCamera(CameraUpdateFactory.newLatLng(new LatLng(latitude, longitude)));

    mMap.animateCamera(CameraUpdateFactory.zoomTo(10));;

    try {
        KmlLayer layer = new KmlLayer(mMap, R.raw.vha, getApplicationContext());
        layer.addLayerToMap();
        Log.v("Maps", "We should have added layer");
    } catch (XmlPullParserException e) {
        e.printStackTrace();
        Log.v("Maps", "Pull parser exception");

    } catch (IOException e) {
        e.printStackTrace();
        Log.v("Maps", "IO exception");

    }

}

}

<?xml version='1.0' encoding='UTF-8'?>
<kml xmlns='http://www.opengis.net/kml/2.2'>
<Document>
    <name>VHA</name>
    <description><![CDATA[]]></description>
    <Folder>
        <name>VHA</name>
        <Placemark>
            <name>Aberdeen VA Clinic</name>
            <description><![CDATA[Address: 2301 8th Ave. NE, Suite 225   Aberdeen, SD 57401<br>State: SD<br>Phone: 605-229-3500<br>Zip: 57401]]></description>
            <styleUrl>#icon-1899-0288D1</styleUrl>
            <ExtendedData>
                <Data name='Address'>
                    <value>2301 8th Ave. NE, Suite 225   Aberdeen, SD 57401</value>
                </Data>
                <Data name='State'>
                    <value>SD</value>
                </Data>
                <Data name='Phone'>
                    <value>605-229-3500</value>
                </Data>
                <Data name='Zip'>
                    <value>57401</value>
                </Data>
            </ExtendedData>
            <address>2301 8th Ave. NE, Suite 225   Aberdeen, SD 57401</address>
        </Placemark>}

Answer 1

好的，对于遇到此问题的任何其他人，google 可以从地址的 csv 文件创建 KML 文件，但它无法读取它。您必须先将 csv 文件中的地址转换为 lat/long，然后再创建 kml 文件。

android 应用中未添加 KML 图层

KML layer not being added in android app

android

google-maps

kml