Develop Reference

passing data to infowindowclick google maps

I've declared current location latlong and selected location latlong. I want to pass these latlong to onInfoWindowClick().
When I try to use Toast to get the data that I set from marker.setTag(mLatitude) and marker.seTag(mLongitude), It give me the same data only mLongitude. Can anyone help me, please.
This is my code:
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long l) {
if (parent.getItemAtPosition(position).toString() != "-- Pilih ATM --"){
mMap.clear();
String pilih_atm = (String) parent.getItemAtPosition(position);
// Toast.makeText(getActivity(), pilih_atm, Toast.LENGTH_SHORT).show();
SQLiteDatabase db = dbHelper.getReadableDatabase();
cursor = db.rawQuery("SELECT * FROM atm WHERE atm_name = '" + pilih_atm + "'",null);
if (cursor != null){
while (cursor.moveToNext()){
title = cursor.getString(1).toString();
__global_endposition = cursor.getString(2).toString();
String[] exp_endCoordinate = __global_endposition.split(",");
double lat_endposition = Double.parseDouble(exp_endCoordinate[0]);
double lng_endposition = Double.parseDouble(exp_endCoordinate[1]);
LatLng endx = new LatLng(lat_endposition, lng_endposition);
MarkerOptions options = new MarkerOptions();
options.position(endx);
options.title(title);
options.snippet(__global_endposition);
if (title.equals("ATM BNI")){
options.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_ORANGE));
}else if(title.equals("ATM BCA")){
options.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_BLUE));
}else if(title.equals("ATM Mandiri")){
options.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_YELLOW));
}
Marker marker = mMap.addMarker(options);
marker.setTag(mLatitude);
marker.setTag(mLongitude);
mMap.setInfoWindowAdapter(new CustomInfoWindowAdapter(getActivity()));
mMap.setOnInfoWindowClickListener(new GoogleMap.OnInfoWindowClickListener() {
#Override
public void onInfoWindowClick(Marker marker) {
// I want to get current location LatLong and selected location LatLong
// I want execute the LatLong on this method
// this just for testing
Toast.makeText(getActivity(), "LatLng: "+marker.getTag()+", "+marker.getTag(), Toast.LENGTH_SHORT).show();
}
});
}
if (!cursor.isClosed()) {
cursor.close();
cursor = null;
}
}
}
}
#Override
public void onNothingSelected(AdapterView<?> adapterView) {
}
});

This is because Marker object has only one Tag object and when you call .setTag() second time, you overrides previously set tag object:
Marker marker = mMap.addMarker(options);
marker.setTag(mLatitude); // tag = mLatitude
marker.setTag(mLongitude); // tag overrides, and now tag = mLongitude
The one of solution is:
Marker marker = mMap.addMarker(options);
marker.setTag("" + mLatitude + "," + mLongitude); // tag now is string: "mLatitude, mLongitude"

android maps displayed multiple markers (LatLng from sqlite)

i use google maps with get (user) device location (GPS Location) in my android app, and insert into database (SQLite) latitude and longitude and adress !
now i want displayed multiple location with LatLng read from database ... no problem in create marker, but in marker info (country, city ...) only show last inserted location for all markers !
this my code :
private void displayMultiplePoint() {
if (LOCATION_TABLE.size() > 0) {
for (int i = 0; LOCATION_TABLE.size() > i; i++) {
int id = LOCATION_TABLE.get(i).getId();
lat = LOCATION_TABLE.get(i).getLatitude();
lng = LOCATION_TABLE.get(i).getLongitude();
place = LOCATION_TABLE.get(i).getPlace();
rate = LOCATION_TABLE.get(i).getRate();
drawMarker(new LatLng(lat, lng), "city", place, rate);
displayToast(id + "" + place);
}
}
}
private void drawMarker(final LatLng point, final String city, final String place, final float rate) {
mMap.setInfoWindowAdapter(new GoogleMap.InfoWindowAdapter() {
#Override
public View getInfoWindow(Marker arg0) {
return null;
}
#Override
public View getInfoContents(Marker arg0) {
View v = null;
try {
v = getLayoutInflater().inflate(R.layout.custom_info_contents, null);
ImageView map_image = (ImageView) v.findViewById(R.id.maps_image);
map_image.setImageResource(R.drawable.runhd);
TextView city_txt = (TextView) v.findViewById(R.id.maps_city);
city_txt.setText(city);
TextView place_txt = (TextView) v.findViewById(R.id.maps_place);
place_txt.setText(place);
RatingBar rate_bar = (RatingBar) v.findViewById(R.id.exercise_display_rate);
rate_bar.setRating(rate);
} catch (Exception ev) {
System.out.print(ev.getMessage());
}
return v;
}
});
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.position(point);
mMap.addMarker(markerOptions);
mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(point, 6));
}
i show toast form rowId from lcation table in databse, and displaled 3 row id : 1, 2, 3 but in marker info show last id (id no : 3)
this my fragment :
thank's

I have many solution for your case But at first :
Your fall with setInfoWindowAdapter method it's just invoked one time, So after you iterated your database items and passing info through drawMarker it's just shown the last modified (saved) data from the variables, So i suggest to move it in your for loop (I know it's not a perfect solution) :
for (int i = 0; LOCATION_TABLE.size() > i; i++) {
int id = LOCATION_TABLE.get(i).getId();
lat = LOCATION_TABLE.get(i).getLatitude();
lng = LOCATION_TABLE.get(i).getLongitude();
place = LOCATION_TABLE.get(i).getPlace();
rate = LOCATION_TABLE.get(i).getRate();
drawMarker(new LatLng(lat, lng), "city", place, rate);
displayToast(id + "" + place);
..........
#Override
public View getInfoContents(Marker arg0) {
View v = null;
try {
v = getLayoutInflater().inflate(R.layout.custom_info_contents, null);
ImageView map_image = (ImageView) v.findViewById(R.id.maps_image);
map_image.setImageResource(R.drawable.runhd);
TextView city_txt = (TextView) v.findViewById(R.id.maps_city);
city_txt.setText("city");
TextView place_txt = (TextView) v.findViewById(R.id.maps_place);
place_txt.setText(place);
RatingBar rate_bar = (RatingBar) v.findViewById(R.id.exercise_display_rate);
rate_bar.setRating(rate);
} catch (Exception ev) {
System.out.print(ev.getMessage());
}
return v;
......
}
2nd Solution Using Cursor through your database and use it anywhere (This is will be awesome).
3rd Using Clustering Algorithm in google_maps-utils-example.

The info window is being shown for only last marker because setInfoWindowAdapter() sets info window for the entire map. Inside setInfoWindowAdapter() you need to associate marker argument with corresponding data.
You need to maintain a marker to data map.
Map<Marker, Place> markerToPlaceMap = new HashMap<>();
where, Place is a class to hold city, place, and rating.
class Place {
public String city, place;
public float rating;
}
Note: Please change members to private and implement getters and setters as per your suitability.
Next, Your drawMarker() will change as follows. It needs to add the marker and it's related place to markerToPlace map.
private void drawMarker(final LatLng point, final String city, final String place, final float rate) {
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.position(point);
Marker marker = mMap.addMarker(markerOptions);
mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(point, 6));
markerToPlaceMap.put(marker, new Place(city, place, rating));
}
Finally, you will override GoogleMap.setInfoWindowAdapter() and access Place related to a marker for setting corresponding info contents.
mMap.setInfoWindowAdapter(new GoogleMap.InfoWindowAdapter() {
#Override
public View getInfoWindow(Marker marker) {
return null;
}
#Override
public View getInfoContents(Marker marker) {
View v = null;
try {
v = getLayoutInflater().inflate(R.layout.custom_info_contents, null);
ImageView map_image = (ImageView) v.findViewById(R.id.maps_image);
map_image.setImageResource(R.drawable.runhd);
TextView city_txt = (TextView) v.findViewById(R.id.maps_city);
city_txt.setText(markerToPlace.get(marker).city); // <- Check how corresponding place for a marker is fetched and used
TextView place_txt = (TextView) v.findViewById(R.id.maps_place);
place_txt.setText(markerToPlace.get(marker).place);
RatingBar rate_bar = (RatingBar) v.findViewById(R.id.exercise_display_rate);
rate_bar.setRating(markerToPlace.get(marker).rate);
} catch (Exception ev) {
System.out.print(ev.getMessage());
}
return v;
}
});

i Use Cursor through your database and get data rows (and show in Toast)
but
my code change to this :
private void displayMultiplePoint() {
Cursor cursor = DB_HELPER.LOCATION_MARKERS();
if (cursor.moveToFirst()) {
for (int i = 0; cursor.getCount() > i; i++) {
int id = cursor.getInt(cursor.getColumnIndex("id"));
double lat = cursor.getDouble(cursor.getColumnIndex("latitude"));
double lng = cursor.getDouble(cursor.getColumnIndex("longitude"));
String place = cursor.getString(cursor.getColumnIndex("place"));
float rate = cursor.getFloat(cursor.getColumnIndex("rate"));
displayToast(id + ", " + place + rate);
cursor.moveToNext();
drawMarker(new LatLng(lat, lng));
}
cursor.close();
}
}
i get arg0.getId form : (m0, m1, m2 ...)
public View getInfoContents(Marker arg0)
(is unique for each marker) then select data by id where id = arg0

Cluster Marker miscalculating when zoom out Android google maps

I'm trying to implement a cluster marker on my map, and it is behaving a little strange, first, it shows me the cluster marker with the right number of markers, but when I zoom out to join other markers it generates another cluster marker which I don't know where it is coming from and why it is showing on the map, I`ll add some image to explain it better:
Here is the image with zoom in, as you can see, I have a cluster marker with 8 points and another one alone, so when I zoom out it should give me one clusterMarker with 9 points, but look what happens when I zoom out:
What that cluster marker with 7 points is doing there?
here is my code:
public class MapaViagem extends FragmentActivity implements ClusterManager.OnClusterClickListener<MyItem>, ClusterManager.OnClusterItemClickListener<MyItem> {
private GoogleMap googleMap;
private String rm_IdViagem;
private List<ClienteModel> mClienteModel = new ArrayList<ClienteModel>();
private List<EnderecoModel> mEnderecoModel = new ArrayList<EnderecoModel>();
private ArrayList<LatLng> coordList = new ArrayList<LatLng>();
private ArrayList<String> nomes = new ArrayList<String>();
private ViagemModel mViagemModel = new ViagemModel();
private ClusterManager<MyItem> mClusterManager;
private ProgressDialog dialog;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.maps);
try {
Bundle parametros = getIntent().getExtras();
rm_IdViagem = parametros.getString("id_viagem");
Repositorio ca = new Repositorio(this);
mViagemModel = ca.getViagemPorId(Integer.valueOf(rm_IdViagem));
Repositorio cl = new Repositorio(this);
mClienteModel = cl.getClientesViagem(Integer.valueOf(rm_IdViagem));
String waypoints = "waypoints=optimize:true";
String coordenadas = "";
if(mClienteModel != null) {
for (int i = 0; i < mClienteModel.size(); i++) {
Repositorio mRepositorio = new Repositorio(this);
mEnderecoModel = mRepositorio.getListaEnderecosDoCliente(Integer.valueOf(mClienteModel.get(i).getClientes_id()));
for (int j = 0; j < mEnderecoModel.size(); j++) {
// Loading map
initilizeMap();
// Changing map type
googleMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
// googleMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
// googleMap.setMapType(GoogleMap.MAP_TYPE_SATELLITE);
// googleMap.setMapType(GoogleMap.MAP_TYPE_TERRAIN);
// googleMap.setMapType(GoogleMap.MAP_TYPE_NONE);
// Showing / hiding your current location
googleMap.setMyLocationEnabled(true);
// Enable / Disable zooming controls
googleMap.getUiSettings().setZoomControlsEnabled(true);
// Enable / Disable my location button
googleMap.getUiSettings().setMyLocationButtonEnabled(true);
// Enable / Disable Compass icon
googleMap.getUiSettings().setCompassEnabled(true);
// Enable / Disable Rotate gesture
googleMap.getUiSettings().setRotateGesturesEnabled(true);
// Enable / Disable zooming functionality
googleMap.getUiSettings().setZoomGesturesEnabled(true);
float latitude = Float.parseFloat(mEnderecoModel.get(j).getLatitude());
float longitude = Float.parseFloat(mEnderecoModel.get(j).getLongitude());
coordenadas += "|" + latitude + "," + longitude;
nomes.add(mClienteModel.get(i).getNome());
coordList.add(new LatLng(latitude, longitude));
mClusterManager = new ClusterManager<MyItem>(MapaViagem.this, googleMap);
mClusterManager.setRenderer(new MyClusterRenderer(MapaViagem.this, googleMap, mClusterManager));
addItems(coordList, nomes);
googleMap.setOnCameraChangeListener(mClusterManager);
googleMap.setOnMarkerClickListener(mClusterManager);
mClusterManager.setOnClusterClickListener(this);
mClusterManager.setOnClusterItemClickListener(this);
mClusterManager.cluster();
googleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(latitude, longitude), 5));
}
}
String sensor = "sensor=false";
String params = waypoints + coordenadas + "&" + sensor;
String output = "json";
String url = "https://maps.googleapis.com/maps/api/directions/" + output + "?" + params;
ReadTask downloadTask = new ReadTask();
downloadTask.execute(url);
}
} catch (Exception e) {
e.printStackTrace();
}
}
public 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(String.valueOf(item.getName()));
}
#Override
protected void onClusterItemRendered(MyItem clusterItem, Marker marker) {
super.onClusterItemRendered(clusterItem, marker);
//here you have access to the marker itself
}
#Override
protected boolean shouldRenderAsCluster(Cluster<MyItem> cluster) {
return cluster.getSize() > 1;
}
}
}

There seems to be an issue in this code:
coordenadas += "|" + latitude + "," + longitude; nomes.add(mClienteModel.get(i).getNome());
coordList.add(new LatLng(latitude, longitude));
mClusterManager = new ClusterManager<MyItem>(MapaViagem.this, googleMap);
mClusterManager.setRenderer(new MyClusterRenderer(MapaViagem.this, googleMap, mClusterManager));
addItems(coordList, nomes);
You should be adding these two things in there:
getMap().setOnCameraChangeListener(mClusterManager);
and
private void addItems() {
// Set some lat/lng coordinates to start with.
double lat = 51.5145160;
double lng = -0.1270060;
// Add ten cluster items in close proximity, for purposes of this example.
for (int i = 0; i < 10; i++) {
double offset = i / 60d;
lat = lat + offset;
lng = lng + offset;
MyItem offsetItem = new MyItem(lat, lng);
mClusterManager.addItem(offsetItem);
}
Here's an example from the documentation: https://developers.google.com/maps/documentation/android/utility/marker-clustering#simple

Not getting data on Marker infowindow click GoogleMap v2 android

I am using Google Maps Extension Library. I have this:
int nsize = visibleMarkers.size();
for (int i = 0; i < nsize; i++) {
String title = visibleMarkers.valueAt(i).getTitle();
String desc = visibleMarkers.valueAt(i).getDesc();
Float latitude = visibleMarkers.valueAt(i).getLat();
Float longitude = visibleMarkers.valueAt(i).getLon();
m = map.addMarker(new MarkerOptions()
.position(new LatLng(latitude, longitude))
.title(title)
.icon(BitmapDescriptorFactory
.fromResource(R.drawable.snotel_marker)));
}
and the map gets populated fine with all the markers.
I am trying to add data to a toast to see the description and title from the marker window on click:
map.setOnInfoWindowClickListener(new OnInfoWindowClickListener() {
#Override
public void onInfoWindowClick(Marker marker) {
Toast.makeText(MainActivity.this,
"Title: " + visibleMarkers.valueAt(i).getTitle(),
Toast.LENGTH_SHORT).show();
}
});
When i add this setOnInfoWindow Listener, i variable needs to be final. I want to get the title of the marker from my visibleMarkers SparseArray, but I just cannot figure out how to get the data from the marker I cam clicking on. I know the desc has info in it, since using a .snippet(desc) shows the info on marker click.
What am I missing here?
EDIT:::
I changed my onPostExecute adding Marker m and my data to another array:
int nsize = visibleMarkers.size();
for (int i = 0; i < nsize; i++) {
MapMarkers marks = new MapMarkers();
String title = visibleMarkers.valueAt(i).getTitle();
String desc = visibleMarkers.valueAt(i).getDesc();
Float latitude = visibleMarkers.valueAt(i).getLat();
Float longitude = visibleMarkers.valueAt(i).getLon();
m = map.addMarker(new MarkerOptions()
.position(new LatLng(latitude, longitude))
.title(title)
.icon(BitmapDescriptorFactory
.fromResource(R.drawable.snotel_marker)));
marks.setTitle(title);
marks.setDesc(desc);
markerInfo.put(m, marks);
map.setOnInfoWindowClickListener(new OnInfoWindowClickListener() {
#Override
public void onInfoWindowClick(Marker marker) {
MapMarkers markInfo = markerInfo.get(marker);
Intent i = new Intent(MainActivity.this,
MarkerInformation.class);
i.putExtra("name", markInfo.getTitle()).putExtra(
"description", markInfo.getDesc());
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(i);
}
});
}
Does that seem correct?

First of all in your setOnInfoWindowClickListener the "i" has no relation with the marker you have pressed, the only connection with it is the marker object that is passed in onInfoWindowClick method.
you can get the data directly from this marker object which has all the data you need, if you don't want this please explain more your problem

try this
Toast.makeText(MainActivity.this, "Title: " + m.getTitle(), Toast.LENGTH_SHORT).show();
Note that m must be declare outside.

Marker is not removing from mapV2 android

I am adding a maker on touch of map and want to remove that marker on click of some button but that marker is not removing from map .Here is my Code
// Marker of end Point
Marker endPointMarker;
onclick of map
#Override
public void onMapClick(LatLng point) {
// TODO Auto-generated method stub
double lat = point.latitude;
double lng = point.longitude;
// Add marker of destination point
try {
Geocoder geocoder;
List<Address> addresses;
geocoder = new Geocoder(BookCabScreen.this);
if (lat != 0 || lng != 0) {
addresses = geocoder.getFromLocation(lat, lng, 1);
String address = addresses.get(0).getAddressLine(0);
String city = addresses.get(0).getAddressLine(1);
String country = addresses.get(0).getAddressLine(2);
Log.d("TAG", "address = " + address + ", city =" + city
+ ", country = " + country);
endPointMarker = mMap.addMarker(new MarkerOptions()
.position(new LatLng(lat, lng))
.title("Location").snippet("" + address));
markers.add(mMap.addMarker(new MarkerOptions()
.position(new LatLng(lat, lng))
.title("Location").snippet("" + address)));
btnStartUp.setEnabled(true);
btnStopPoint.setEnabled(true);
mJbBookCab.setEndPointLat(lat);
mJbBookCab.setEndPointLng(lng);
} else {
Toast.makeText(BookCabScreen.this,
"latitude and longitude are null",
Toast.LENGTH_LONG).show();
}
} catch (Exception e) {
e.printStackTrace();
}
}
on click of button
if (endPointMarker != null) {
endPointMarker.remove();
endPointMarker = null;
}
But it is not removing from map ?Please help

You are adding same marker twice:
endPointMarker = mMap.addMarker(new MarkerOptions()
.position(new LatLng(lat, lng))
.title("Location").snippet("" + address));
markers.add(mMap.addMarker(new MarkerOptions()
.position(new LatLng(lat, lng))
.title("Location").snippet("" + address)));
Just remove one call to GoogleMap.addMarker.

what you are doing is correct but if this is not working then You can use mMap.clear() inside your onclick method this will remove all the markers or if you want only a specific marker not to be shown then you can use endPointMarker.setVisible(false)