Question

我正在尝试在Android上的Google地图上显示一个场地列表，这些场景可以在缩小时进行聚类，也可以在非聚集的情况下进行放大。

当UNCLUSTERED时，可以打开单个项目信息窗口以查看该场地详细信息，然后单击以打开单独的活动。

我正在使用此https://developers.google.com/maps/documentation/android-api/utility/marker-clustering?hl=en

我这样做：

在onResume（）中获取地图片段

used_memory:8519088
used_memory_human:8.12M

MapReadyCallback：

@Override
public void onResume() {
    super.onResume();
    // Getting map for the map fragment
    mapFragment = new SupportMapFragment();
    mapFragment.getMapAsync(new VenuesInLocationOnMapReadyCallback(getContext()));

    // Adding map fragment to the view using fragment transaction
    FragmentManager fragmentManager = getChildFragmentManager();
    FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
    fragmentTransaction.add(R.id.venues_in_location_support_map_fragment_container, mapFragment);
    fragmentTransaction.commit();
}

设置Cluster Manager

private class VenuesInLocationOnMapReadyCallback implements OnMapReadyCallback {
    private static final float ZOOM_LEVEL = 10;
    private final Context context;

    public VenuesInLocationOnMapReadyCallback(Context context) {
        this.context = context;
    }

    @Override
    public void onMapReady(final GoogleMap map) {
        // Setting up marker clusters
        setUpClusterManager(getContext(), map);

        // Allowing user to select My Location
        map.setMyLocationEnabled(true);

        // My location button handler to check the location setting enable
        map.setOnMyLocationButtonClickListener(new GoogleMap.OnMyLocationButtonClickListener() {
            @Override
            public boolean onMyLocationButtonClick() {
                promptForLocationSetting(getContext(), map);
                // Returning false ensures camera try to move to user location
                return false;
            }
        });

        map.getUiSettings().setMyLocationButtonEnabled(true);

        // Disabling map toolbar
        map.getUiSettings().setMapToolbarEnabled(false);
    }
}

添加群集项（标记）

private void setUpClusterManager(final Context context, GoogleMap map) {
    // Declare a variable for the cluster manager.
    ClusterManager<LocationMarker> mClusterManager;

    // Position the map.
    LatLng wocLatLng = new LatLng(28.467948, 77.080685);
    map.moveCamera(CameraUpdateFactory.newLatLngZoom(wocLatLng, VenuesInLocationOnMapReadyCallback.ZOOM_LEVEL));

    // Initialize the manager with the context and the map.
    mClusterManager = new ClusterManager<LocationMarker>(context, map);

    // Point the map's listeners at the listeners implemented by the cluster
    // manager.
    map.setOnCameraChangeListener(mClusterManager);
    map.setOnMarkerClickListener(mClusterManager);

    // Add cluster items (markers) to the cluster manager.
    addLocations(mClusterManager);

    // Setting custom cluster marker manager for info window adapter
    map.setInfoWindowAdapter(mClusterManager.getMarkerManager());
    mClusterManager.getMarkerCollection().setOnInfoWindowAdapter(new MyLocationInfoWindowAdapter());

    map.setOnInfoWindowClickListener(new MyMarkerInfoWindowClickListener());
}

MyLocationInfoWIndowAdapter

private void addLocations(ClusterManager<LocationMarker> mClusterManager) {

    for (int i = 0; i < venuesDetailsJsonArray.length(); i++) {
        try {
            JSONObject thisVenueJson = (JSONObject) venuesDetailsJsonArray.get(i);
            JSONObject thisVenueLocationJson = thisVenueJson.getJSONObject("location");
            LocationMarker thisVenueMarker = new LocationMarker(thisVenueLocationJson.getDouble("latitude"),
                    thisVenueLocationJson.getDouble("longitude"), thisVenueJson.getInt("id"));
            mClusterManager.addItem(thisVenueMarker);
        } catch (JSONException e) {
            e.printStackTrace();
        }
    }
}

MarkerInfoWindowClickListener

private class MyLocationInfoWindowAdapter implements GoogleMap.InfoWindowAdapter {
    @Override
    public View getInfoWindow(Marker marker) {
        return null;
    }

    @Override
    public View getInfoContents(Marker marker) {
        Log.e("getInfoContent", marker.toString());
        View venueInfoWindow = ((LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE))
                .inflate(R.layout.venues_map_item, null);
        return venueInfoWindow;
    }
}

位置标记类

private class MyMarkerInfoWindowClickListener implements GoogleMap.OnInfoWindowClickListener {
    @Override
    public void onInfoWindowClick(Marker marker) {
        // TODO: This is the click listener, that means all the info must be added as Tag to Marker
        Intent venueDetailsDisplayIntent = new Intent(getActivity(), VenueDetailsDisplayActivity.class);
        startActivity(venueDetailsDisplayIntent);
    }
}

}

我理解流程的方式是：

onResume - ＆gt; fragmentTransaction - ＆gt; VenuesInLocationOnMapReadyCallback - ＆gt; setUpClusterManager - ＆gt; addLocations（这会添加自定义标记）

标记点击 - ＆gt; MyLocationInfoWindowAdapter - ＆gt; getInfoContents（标记标记）

标记信息窗口点击 - ＆gt; MyMarkerInfoWindowClickListener

根据我对过程的理解（我可能错了）：

在addLocations函数中添加标记时，我在自定义LocationMarker中添加了一个id。

我需要在infoWindow中显示不同标记的不同信息。

使用MyLocationInfoWindowAdapter显示InfoWindow - ＆gt; getInfoContents（标记标记）

但是这就是问题，我无法找到一种方法来确定点击了哪个标记，以便我可以在InfoWindow中设置适当的信息。

单击打开的InfoWindow我需要打开一个单独的Activity。 A / C给我InfoWindow点击是使用MyMarkerInfoWindowClickListener处理 - ＆gt; onInfoWindowClick（标记标记）这里我也有同样的问题（我无法弄清楚哪个标记的信息窗口已被点击）。

如何在Google Maps Clustering Utility Android中设置信息窗口详细信息？

0 个答案: