java Android 谷歌地图添加到标记自己的标签

Android google maps add to marker own tag

提问by Valdis Azamaris

I have such code:

我有这样的代码：

protected void onPostExecute(final ArrayList<HashMap<String, String>> adapter) {

                for (final HashMap<String, String> a : adapter) {
                    LatLng pos = new LatLng(Double.valueOf(a.get(TAG_latitude)), Double.valueOf(a.get(TAG_longitude)));
                    Log.e("pppppos", String.valueOf(pos.latitude));
                    Marker m = map.addMarker(new MarkerOptions().position(pos)
                            .title(a.get(TAG_NAME))
                            .snippet("Kiel is cool"));

                    map.setOnInfoWindowClickListener(
                              new OnInfoWindowClickListener(){
                                    public void onInfoWindowClick(Marker marker){
                                      Intent nextScreen = new Intent(SearchExchangerActivity.this, BankExchangersListActivity.class);
                                        nextScreen.putExtra("exchanger_id", id);    
                                        startActivityForResult(nextScreen, 0);
                                    }
                                  });
                }

But i need to set invisible to user field for example Tag_idfor each marker, and use this id then when sending extra info to other activity, something like:

但是我需要为例如Tag_id每个标记的用户字段设置不可见，然后在向其他活动发送额外信息时使用此 ID，例如：

protected void onPostExecute(final ArrayList<HashMap<String, String>> adapter) {

            for (final HashMap<String, String> a : adapter) {
                LatLng pos = new LatLng(Double.valueOf(a.get(TAG_latitude)), Double.valueOf(a.get(TAG_longitude)));
                Marker m = map.addMarker(new MarkerOptions().position(pos)
                        .title(a.get(TAG_NAME))
                        .snippet("Kiel is cool")
                                                    .Tag_id(TAG_ID));

                map.setOnInfoWindowClickListener(
                          new OnInfoWindowClickListener(){
                                public void onInfoWindowClick(Marker marker){
                                  Intent nextScreen = new Intent(SearchExchangerActivity.this, BankExchangersListActivity.class);
                                    nextScreen.putExtra("exchanger_id", marker.get(TAG_ID));    
                                    startActivityForResult(nextScreen, 0);
                                }
                              });
            }

Is it real to do? Just how can i in my listener get what marker i'm clicking?

是真的吗？我怎么能在我的听众中得到我点击的标记？

Also it could be done via title field... But i'm getting error's when writing marker.getTitle()...

也可以通过标题字段完成...但我在编写时遇到错误marker.getTitle()...

upd

更新

for (final HashMap<String, String> a : adapter) {
                LatLng pos = new LatLng(Double.valueOf(a.get(TAG_latitude)), Double.valueOf(a.get(TAG_longitude)));
                Log.e("pppppos", String.valueOf(pos.latitude));
                HashMap<Marker, String> m = new HashMap<Marker, String>();
                        m.put( map.addMarker(new MarkerOptions().position(pos)
                        .title(a.get(TAG_NAME))
                        .snippet("Kiel is cool")), "1");                    

            }

            map.setOnInfoWindowClickListener(
              new OnInfoWindowClickListener(){
                    public void onInfoWindowClick(HashMap<Marker, String> marker){
                      Intent nextScreen = new Intent(SearchExchangerActivity.this, BankExchangersListActivity.class);
                        nextScreen.putExtra("exchanger_id", "1");   
                        startActivityForResult(nextScreen, 0);
                    }
                  });

回答by MaciejGórski

1. You may use Map<Marker, String>and keep your data there or
2. use Android Maps Extensionswhich adds getDataand setDatafunctions to Markerclass.

1. 您可以Map<Marker, String>在那里使用和保存您的数据，或者
2. 使用Android地图扩展这增加getData和setData功能Marker类。

Btw. You should not set InfoWindowAdapterin a loop. It makes no sense. Only the last survives.

顺便提一句。你不应该InfoWindowAdapter在循环中设置。这个不成立。只有最后一个活下来。

回答by Eduardo

That is currently formally available, the setTagand getTaghave been added to the Marker API.

这是目前正式可用的，setTag并且getTag已添加到 Marker API 中。

The following was taken from the "associate data with a marker" section from the official doc:

以下内容摘自官方文档的“将数据与标记关联”部分：

/**
 * A demo class that stores and retrieves data objects with each marker.
 */
public class MarkerDemoActivity extends FragmentActivity implements
        OnMarkerClickListener,
        OnMapReadyCallback {

    private static final LatLng PERTH = new LatLng(-31.952854, 115.857342);
    private static final LatLng SYDNEY = new LatLng(-33.87365, 151.20689);
    private static final LatLng BRISBANE = new LatLng(-27.47093, 153.0235);

    private Marker mPerth;
    private Marker mSydney;
    private Marker mBrisbane;

    private GoogleMap mMap;

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

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

    /** Called when the map is ready. */
    @Override
    public void onMapReady(GoogleMap map) {
        mMap = map;

        // Add some markers to the map, and add a data object to each marker.
        mPerth = mMap.addMarker(new MarkerOptions()
                .position(PERTH)
                .title("Perth");
        mPerth.setTag(0);

        mSydney = mMap.addMarker(new MarkerOptions()
                .position(SYDNEY)
                .title("Sydney");
        mSydney.setTag(0);

        mBrisbane = mMap.addMarker(new MarkerOptions()
                .position(BRISBANE)
                .title("Brisbane");
        mBrisbane.setTag(0);

        // Set a listener for marker click.
        mMap.setOnMarkerClickListener(this);
    }

    /** Called when the user clicks a marker. */
    @Override
    public boolean onMarkerClick(final Marker marker) {

        // Retrieve the data from the marker.
        Integer clickCount = (Integer) marker.getTag();

        // Check if a click count was set, then display the click count.
        if (clickCount != null) {
            clickCount = clickCount + 1;
            marker.setTag(clickCount);
            Toast.makeText(this,
                           marker.getTitle() +
                           " has been clicked " + clickCount + " times.",
                           Toast.LENGTH_SHORT).show();
        }

        // Return false to indicate that we have not consumed the event and that we wish
        // for the default behavior to occur (which is for the camera to move such that the
        // marker is centered and for the marker's info window to open, if it has one).
        return false;
    }
}