I have a DefaultClusterRenderer class and my own ClusterItem, which I am using as marker on the map. I am setting the title and snippet with MarkerOptions, so I can grap them on my onInfoWindowClick event. I wanna start a new Activity, depends on which infoWindow the user clicked, but I cant add a tag to MarkerOptions, so I cant get the tag in my onInfoWindowClick method via the Marker parameter.
I am looking for a good solution to add an id to each ClusterItem and get the id via Marker in onInfoWindowClick.
public class OwnClusterRendering extends DefaultClusterRenderer<GeoPoint> {
private GoogleMap map;
public OwnClusterRendering(Context context, GoogleMap map, ClusterManager<GeoPoint> clusterManager) {
super(context, map, clusterManager);
this.map = map;
}
protected void onBeforeClusterItemRendered(GeoPoint geoPoint, MarkerOptions markerOptions) {
markerOptions.icon(geoPoint.getIcon());
markerOptions.snippet(geoPoint.getSnippet());
markerOptions.title(geoPoint.getTitle());
super.onBeforeClusterItemRendered(geoPoint, markerOptions);
}
}
MyCustomWindowAdapter:
#Override
public void onInfoWindowClick(Marker marker) {
Log.d("test", marker.getTitle());
Log.d("test", marker.getSnippet());
Log.d("test", marker.getId());
Log.d("test", String.valueOf(marker.getTag()));
// Intent intent = new Intent(context, StoneInfoSliderActivity.class);
// context.startActivity(intent);
}
Solved it with the following method from DefaultClusterRenderer<>
#Override
protected void onClusterItemRendered(GeoPoint geoPoint, Marker marker) {
marker.setTag(geoPoint.getId());
super.onClusterItemRendered(geoPoint, marker);
}
Related
I am using Android Maps Utils. I am reading a list of coordinates from online and plotting them as cluster items as well as saving them in a hash map which associates a "Room" a class I have created to the cluster item:
private HashMap roomHashMap = new HashMap();
On clicking the info window of this cluster item I need to retrieve the room associated with the cluster item. I had implemented this using a marker with no problem as in the onInfoWindowClickListener I just added roomHashMap.get(marker) but now I cannot do this because in the info window it still requires a marker but I have a HashMap of ClusterItem
mMap.setOnInfoWindowClickListener(new GoogleMap.OnInfoWindowClickListener() {
#Override
public void onInfoWindowClick(Marker marker) {
//Ideally I want this
//Room currenRoom=roomHashMap.get(clusterItem);
//but clusterItem is obviously not a Marker
}
});
googleMap = mFragment.getMap();
googleMap.setMapType(GoogleMap.MAP_TYPE_TERRAIN);
googleMap.getUiSettings().setZoomControlsEnabled(true); // true to
googleMap.getUiSettings().setZoomGesturesEnabled(true);
googleMap.getUiSettings().setCompassEnabled(true);
googleMap.getUiSettings().setMyLocationButtonEnabled(true);
googleMap.getUiSettings().setRotateGesturesEnabled(true);
if (googleMap == null) {
Toast.makeText(getActivity(), "Sorry! unable to create maps",
Toast.LENGTH_SHORT).show();
}
mClusterManager = new ClusterManager<MyItem>(getActivity(), googleMap );
googleMap.setOnMapLoadedCallback(this);
googleMap.setMyLocationEnabled(true);
googleMap.setBuildingsEnabled(true);
googleMap.getUiSettings().setTiltGesturesEnabled(true);
markers = new Hashtable<String, String>();
mClusterManager.setRenderer(new MyClusterRenderer(getActivity() , googleMap , mClusterManager ));
public class MyClusterRenderer extends DefaultClusterRenderer {
public MyClusterRenderer(Context context, GoogleMap map,
ClusterManager<MyItem> clusterManager) {
super(context, map, clusterManager);
}
#Override
protected void onBeforeClusterItemRendered(MyItem item, MarkerOptions markerOptions) {
super.onBeforeClusterItemRendered(item, markerOptions);
markerOptions.title(item.getTitle());
markerOptions.snippet(item.getAddress());
}
#Override
protected void onClusterItemRendered(MyItem clusterItem, Marker marker) {
super.onClusterItemRendered(clusterItem, marker);
//here you have access to the marker itself
}
}
Without using the ClusterManager, I use HashMap to put the Marker and ID into the HashMap, and get the ID in the OnMarkClick method and get the data from database. It's works
markers.put(addNewMarker(geoPoint), objectId);
private Marker addNewMarker(ParseGeoPoint parseGeoPoint) {
double latitude = parseGeoPoint.getLatitude();
double longitude = parseGeoPoint.getLongitude();
return googleMap.addMarker(new MarkerOptions().position(
new LatLng(latitude, longitude)));
}
#Override
public boolean onMarkerClick(Marker marker) {
String objectId = markers.get(marker);
if (null == objectId) {
return false;
}
getMemoryBriefInfo(objectId);
return true;
}
But now I need to use the ClusterManager to cluster multiple markers into number.
The problems is It seems there is no way to implement this, in the demo of Google, it just add the Items into the Cluster.
There is a OnMarkerClick method in the ClusterManager class, but I don't how to Override this and set with my own unique ID.
there is a global solution for you that help to add title, snippet and icon so you can get what you want.
Modify your ClusterItem Object and add 3 variables :
public class MyItem implements ClusterItem {
private final LatLng mPosition;
BitmapDescriptor icon;
String title;
String snippet;
public MyItem(BitmapDescriptor ic,Double lat , Double lng,String tit ,String sni)
{
mPosition = new LatLng(lat,lng);
icon = ic;
title = tit;
snippet = sni;
}
And after you create your costume render :
public class OwnRendring extends DefaultClusterRenderer<MyItem> {
public OwnRendring(Context context, GoogleMap map,
ClusterManager<MyItem> clusterManager) {
super(context, map, clusterManager);
}
protected void onBeforeClusterItemRendered(MyItem item, MarkerOptions markerOptions) {
markerOptions.icon(item.getIcon());
markerOptions.snippet(item.getSnippet());
markerOptions.title(item.getTitle());
super.onBeforeClusterItemRendered(item, markerOptions);
}
}
After that just put this line in your SetUpCluster() function before addItems():
mClusterManager.setRenderer(new OwnRendring(getApplicationContext(),mMap,mClusterManager));
i'm developing my first app and i created the following map viewer activity:
public class MapViewer extends Activity implements OnInfoWindowClickListener, ClusterManager.OnClusterClickListener<MyItem> {
private GoogleMap map;
private LatLng defaultLatLng = new LatLng(X, Y);
private int zoomLevel = 5;
private Database db = new Database(this);
private ClusterManager<MyItem> mClusterManager;
private LatLngBounds allowedBounds;
private final LatLng northeast = new LatLng(A, B);
private final LatLng southwest = new LatLng(C, D);
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.mapviewer);
LatLngBounds.Builder builder = new LatLngBounds.Builder();
builder.include(northeast);
builder.include(southwest);
allowedBounds = builder.build();
try {
map = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();
if (map != null) {
map.setMyLocationEnabled(true);
map.setMapType(GoogleMap.MAP_TYPE_NORMAL);
map.getUiSettings().setRotateGesturesEnabled(false);
map.moveCamera(CameraUpdateFactory.newLatLngZoom(defaultLatLng, zoomLevel));
mClusterManager = new ClusterManager<MyItem>(this, map);
mClusterManager.setRenderer(new MyClusterRenderer(this, map, mClusterManager));
mClusterManager.setOnClusterClickListener(this);
map.setOnCameraChangeListener(mClusterManager);
map.setOnMarkerClickListener(mClusterManager);
map.setInfoWindowAdapter(new ClusterInfoWindow(getLayoutInflater()));
map.setOnInfoWindowClickListener(this);
addItems();
}
} catch (NullPointerException e) {
e.printStackTrace();
}
}
}
As you can see i set a listener to map object
map.setOnCameraChangeListener(mClusterManager);
that adds or removes clusters on markers groups, according to zoom level.
Now i would add a listener that checks if user moves on map within some bounds:
map.setOnCameraChangeListener(new OnCameraChangeListener() {
#Override
public void onCameraChange(CameraPosition cameraPosition) {
checkBounds();
}
});
But it doesn't work. It works only if i remove the previous listener (mClusterManager).
So, how to make both listener working on the same map object?
Thank you in advance for your replies and sorry for my english.
As there's only a set method and no add method, you can only set one listener at a time. But you could delegate from the one listener to the other like this:
map.setOnCameraChangeListener(new OnCameraChangeListener() {
#Override
public void onCameraChange(CameraPosition cameraPosition) {
checkBounds();
mClusterManager.onCameraChange(cameraPosition);
}
});
Of course mClusterManager does not need to implement the CameraChangeListener interface any more but just needs a method public void onCameraChange(CameraPosition cameraPosition).
This question already has answers here:
Android Maps Utils Clustering show InfoWindow
(3 answers)
Closed 4 years ago.
i'm developing my app that use markers on google map. Then i use clustering to gather markers that are too closer. Here is part of my code:
MapViewer.java
public class MapViewer extends Activity implements OnInfoWindowClickListener {
private GoogleMap map;
private ClusterManager<MyItem> mClusterManager;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.mapviewer);
try {
map = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();
if (map != null) {
map.setMyLocationEnabled(true);
map.setMapType(GoogleMap.MAP_TYPE_NORMAL);
map.getUiSettings().setRotateGesturesEnabled(false);
mClusterManager = new ClusterManager<MyItem>(this, map);
mClusterManager.setRenderer(new MyClusterRenderer(this, map, mClusterManager));
map.setOnCameraChangeListener(mClusterManager);
map.setOnMarkerClickListener(mClusterManager);
map.setInfoWindowAdapter(new ClusterInfoWindow(getLayoutInflater()));
map.setOnInfoWindowClickListener(this);
addItems();
}
} catch (NullPointerException e) {
e.printStackTrace();
}
}
#Override
public void onInfoWindowClick(Marker marker) {
// My code
}
public void addItems() {
// My code
}
}
ClusterInfoWindow.java
public class ClusterInfoWindow implements InfoWindowAdapter {
LayoutInflater inflater = null;
public ClusterInfoWindow(LayoutInflater inflater) {
this.inflater = inflater;
}
#Override
public View getInfoWindow(Marker marker) {
return(null);
}
#Override
public View getInfoContents(Marker marker) {
View popup = inflater.inflate(R.layout.infowindow, null);
TextView tv = (TextView)popup.findViewById(R.id.title);
tv.setText(marker.getTitle());
tv = (TextView)popup.findViewById(R.id.snippet);
tv.setText(marker.getSnippet());
return(popup);
}
}
If i click on single marker it shows a popup with some details. The same happens if i click on a cluster. How to make the cluster not clickable? I don't want to show anything when user click on cluster.
Thank you.
Based on the documentation from Google Maps:
If you want to add specific functionality in response to a marker click event, set the map's OnMarkerClickListener() to the ClusterManager, since ClusterManager implements the listener.
So, instead of doing map.setOnMarkerClickListener(mClusterManager); you can change it to the following:
map.setOnMarkerClickListener(new GoogleMap.OnMarkerClickListener() {
#Override
public boolean onMarkerClick(Marker marker) {
marker.showInfoWindow();
return false;
}
});
You want to implement ClusterManager.OnClusterItemClickListener or ClusterManager.OnClusterItemInfoWindowClickListener
I'm using Google Maps Android API Utility Library in order to show several markers in a map in a clustered way.
I've followed the instructions to make it work, as well as taking a look at the examples in the library, but I can't figure out how to show an InfoWindow when a marker is clicked.
I guess getMap().setOnMarkerClickListener(mClusterManager); is the one managing the onClick events, and if commented out, I can override it using getMap().setInfoWindowAdapter(new InfoWindowAdapter() {)); but I have no access to my custom marker object.
Nevertheless, if I use getMap().setOnMarkerClickListener(mClusterManager);, I can't find a way to show the InfoWindow when a marker has been clicked.
Does anybody have any idea about how to achieve this?
Thanks a lot in advance!
You need to extend the DefaultClusterRenderer class and override the onBeforeClusterItemRendered, attaching the title to the MarkerOptions object passed as argument.
After that, you can pass your implementation to the ClusterManager.
Example:
class MyItem implements ClusterItem {
private LatLng mPosition;
private String mTitle;
public MyItem(LatLng position){
mPosition = position;
}
#Override
public LatLng getPosition() {
return mPosition;
}
public String getTitle() {
return mTitle;
}
public void setTitle(String title) {
mTitle = title;
}
}
class MyClusterRenderer extends DefaultClusterRenderer<MyItem> {
public MyClusterRenderer(Context context, GoogleMap map,
ClusterManager<MyItem> clusterManager) {
super(context, map, clusterManager);
}
#Override
protected void onBeforeClusterItemRendered(MyItem item, MarkerOptions markerOptions) {
super.onBeforeClusterItemRendered(item, markerOptions);
markerOptions.title(item.getTitle());
}
#Override
protected void onClusterItemRendered(MyItem clusterItem, Marker marker) {
super.onClusterItemRendered(clusterItem, marker);
//here you have access to the marker itself
}
}
And then you can use it in this way:
ClusterManager<MyItem> clusterManager = new ClusterManager<MyItem>(this, getMap());
clusterManager.setRenderer(new MyClusterRenderer(this, getMap() ,clusterManager));