Develop Reference

Getting some weird strings while i was trying to get location name using marker on touch event on maps

I'm trying to make an app to get the location name where the marker is placed on the map in android. When I used marker.position() function it gave me a weird string. Starts with, com.google.android.gms.maps.model.MarkerOptions#28f817d
I tried to use geocode but didn't work for me. I might be using it in an improper way.
mMap.setOnMapClickListener(new GoogleMap.OnMapClickListener() {
#Override
public void onMapClick(LatLng point) {
mMap.clear();
MarkerOptions marker = new MarkerOptions();
mMap.addMarker(marker.position(point)
.draggable(true)
.title(String.valueOf(marker.position(point)))
.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_AZURE))
.snippet(point.latitude + "," + point.longitude));
}
});
}
I wish that I can get the location name on the title.

Thats becouse marker.position(point)) returns an object of class LatLng and is not an String itself. You could use any of its properties (latitude & longitude):
String.valueOf(marker.position(point))
to
"" + marker.position(point).latitude + marker.position(point).longitude

Do something like this
mMap.setOnMapClickListener(new GoogleMap.OnMapClickListener() {
#Override
public void onMapClick(LatLng point) {
mMap.clear();
MarkerOptions marker = new MarkerOptions();
mMap.addMarker(marker.position(point)
.draggable(true)
.title(getAddress(point.getLatitude(),point.getLongitude()))
.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_AZURE))
.snippet(point.latitude + "," + point.longitude));
}
});
}
write a function called getAddress like this
public string getAddress(double lat, double lng) {
Geocoder geocoder = new Geocoder(HomeActivity.mContext, Locale.getDefault());
try {
List<Address> addresses = geocoder.getFromLocation(lat, lng, 1);
Address obj = addresses.get(0);
String add = obj.getAddressLine(0);
add = add + "\n" + obj.getCountryName();
add = add + "\n" + obj.getCountryCode();
add = add + "\n" + obj.getAdminArea();
add = add + "\n" + obj.getPostalCode();
add = add + "\n" + obj.getSubAdminArea();
add = add + "\n" + obj.getLocality();
add = add + "\n" + obj.getSubThoroughfare();
Log.v("IGA", "Address" + add);
// Toast.makeText(this, "Address=>" + add,
// Toast.LENGTH_SHORT).show();
// TennisAppActivity.showDialog(add);
return add;
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show();
return e;
}
}

How to show marker info for all markers at a time?

I am adding multiple markers on map. I am trying to show all markers info pannel when markers added on map, but able to show only last markers info. here is my code :
/*Place all stores on map*/
private void placeMarkersOnMap() {
for (int i = 0; i < store_list.size(); i++) {
double latitude = Double.parseDouble(store_list.get(i).latitude.toString());
double longitude = Double.parseDouble(store_list.get(i).longitude.toString());
String title = store_list.get(i).id + " " + store_list.get(i).store_name.toString();
String snipet = store_list.get(i).address + " ," + store_list.get(i).working_hours;
Marker marker = map.addMarker(new MarkerOptions().position(
new LatLng(latitude, longitude))
.title(title)
.snippet(snipet).icon(BitmapDescriptorFactory.fromResource(map_marker)));
marker.showInfoWindow();
map.animateCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(latitude, longitude), 14));
}
}

Don't want to show reference inside infowindow

I was trying to get some place lists from the google places and show it in the googlemap api v2. Also i want to show infowindow, But here i can only acess the place reference through the info window argument. And the problem is the infowindow will show the reference too. It is a nasty thing. I don't want to show it inside the infowindow, but i want the reference inside this infowindow clicklistener for passing to the method how do i do that? Any help appreciated...
Code
for(Place place : nearPlaces.results){
// Creating a marker
MarkerOptions markerOptions = new MarkerOptions();
// Getting latitude of the place
double latitude = place.geometry.location.lat;
double longitude = place.geometry.location.lng;
// Getting name
String NAME = place.name;
// Getting vicinity
String VICINITY = place.vicinity;
//Reference of a place
String REFERENCE = place.reference;
LatLng latLng = new LatLng(latitude, longitude);
// Setting the position for the marker
markerOptions.position(latLng);
// Setting the title for the marker.
markerOptions.title(NAME + " : " + VICINITY);
markerOptions.snippet(REFERENCE);
markerOptions.icon(bitmapDescriptor);
// Placing a marker on the touched position
final Marker marker = mGoogleMap.addMarker(markerOptions);
mGoogleMap.setOnInfoWindowClickListener(
new OnInfoWindowClickListener(){
#Override
public void onInfoWindowClick(Marker arg0) {
// TODO Auto-generated method stub
arg0.hideInfoWindow();
double dlat=arg0.getPosition().latitude;
double dlon=arg0.getPosition().longitude;
alert.showpickAlertDialog2(PlacesMapActivity.this,dlat , dlon, arg0.getSnippet());
}
}
);

Keep a Map<Marker, Place> & don't put REFERENCE into the snippet.
When the info window is clicked, look up the marker in the map and get the corresponding Place
HashMap<Marker, Place> markerPlaces = new HashMap<Marker, Place>();
for(Place place : nearPlaces.results){
// Creating a marker
MarkerOptions markerOptions = new MarkerOptions();
// Getting latitude of the place
double latitude = place.geometry.location.lat;
double longitude = place.geometry.location.lng;
// Getting name
String NAME = place.name;
// Getting vicinity
String VICINITY = place.vicinity;
//Reference of a place
String REFERENCE = place.reference;
LatLng latLng = new LatLng(latitude, longitude);
// Setting the position for the marker
markerOptions.position(latLng);
// Setting the title for the marker.
markerOptions.title(NAME + " : " + VICINITY);
markerOptions.icon(bitmapDescriptor);
// Placing a marker on the touched position
final Marker marker = mGoogleMap.addMarker(markerOptions);
markerPlaces.put(marker, place);
mGoogleMap.setOnInfoWindowClickListener(
new OnInfoWindowClickListener(){
#Override
public void onInfoWindowClick(Marker arg0) {
// TODO Auto-generated method stub
arg0.hideInfoWindow();
double dlat=arg0.getPosition().latitude;
double dlon=arg0.getPosition().longitude;
Place p = markerPlaces.get(marker);
alert.showpickAlertDialog2(PlacesMapActivity.this,dlat , dlon, p.reference);
}
}
);
Or, in this instance, you could make a final reference to place and use that in the onInfoWindowClick:
for(Place place : nearPlaces.results){
// Creating a marker
MarkerOptions markerOptions = new MarkerOptions();
// Getting latitude of the place
double latitude = place.geometry.location.lat;
double longitude = place.geometry.location.lng;
// Getting name
String NAME = place.name;
// Getting vicinity
String VICINITY = place.vicinity;
//Reference of a place
String REFERENCE = place.reference;
LatLng latLng = new LatLng(latitude, longitude);
// Setting the position for the marker
markerOptions.position(latLng);
// Setting the title for the marker.
markerOptions.title(NAME + " : " + VICINITY);
markerOptions.icon(bitmapDescriptor);
// Placing a marker on the touched position
final Marker marker = mGoogleMap.addMarker(markerOptions);
final Place p = place;
markerPlaces.put(marker, place);
mGoogleMap.setOnInfoWindowClickListener(
new OnInfoWindowClickListener(){
#Override
public void onInfoWindowClick(Marker arg0) {
// TODO Auto-generated method stub
arg0.hideInfoWindow();
double dlat=arg0.getPosition().latitude;
double dlon=arg0.getPosition().longitude;
alert.showpickAlertDialog2(PlacesMapActivity.this,dlat , dlon, p.reference);
}
}
);

Android, How to remove all markers from Google Map V2?

I have map view in my fragment. I need to refresh map and add different markers based on condition. So, I should remove last markers from map before add new markers.
Actually, some weeks ago app was working fine and suddenly it happened. My code is like this:
private void displayData(final List<Venue> venueList) {
// Removes all markers, overlays, and polylines from the map.
googleMap.clear();
.
.
.
}
Last time it was working fine (before new Google Map API announce by Android team in I/O 2013). However, after that I adapted my code to use this new API. Now, I don't know why this method googleMap.clear(); doesn't work!
Any suggestion would be appreciated. Thanks
=======
Update
=======
Complete code:
private void displayData(final List<Venue> venueList) {
// Removes all markers, overlays, and polylines from the map.
googleMap.clear();
// Zoom in, animating the camera.
googleMap.animateCamera(CameraUpdateFactory.zoomTo(ZOOM_LEVEL), 2000, null);
// Add marker of user's position
MarkerOptions userIndicator = new MarkerOptions()
.position(new LatLng(lat, lng))
.title("You are here")
.snippet("lat:" + lat + ", lng:" + lng);
googleMap.addMarker(userIndicator);
// Add marker of venue if there is any
if(venueList != null) {
for(int i=0; i < venueList.size(); i++) {
Venue venue = venueList.get(i);
String guys = venue.getMaleCount();
String girls= venue.getFemaleCount();
String checkinStatus = venue.getCan_checkin();
if(checkinStatus.equalsIgnoreCase("true"))
checkinStatus = "Checked In - ";
else
checkinStatus = "";
MarkerOptions markerOptions = new MarkerOptions()
.position(new LatLng(Double.parseDouble(venue.getLatitude()), Double.parseDouble(venue.getLongitude())))
.title(venue.getName())
.snippet(checkinStatus + "Guys:" + guys + " and Girls:" + girls)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.ic_orange_pin));
googleMap.addMarker(markerOptions);
}
}
// Move the camera instantly to where lat and lng shows.
if(lat != 0 && lng != 0)
googleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(lat, lng), ZOOM_LEVEL));
googleMap.setInfoWindowAdapter(new GoogleMap.InfoWindowAdapter() {
#Override
public View getInfoWindow(Marker marker) {
return null;
}
#Override
public View getInfoContents(Marker marker) {
return null;
}
});
googleMap.setOnInfoWindowClickListener(new GoogleMap.OnInfoWindowClickListener() {
#Override
public void onInfoWindowClick(Marker marker) {
String str = marker.getId();
Log.i(TAG, "Marker id: " + str);
str = str.substring(1);
int markerId = Integer.parseInt(str);
markerId -= 1; // Because first item id of marker is 1 while list starts at 0
Log.i(TAG, "Marker id " + markerId + " clicked.");
// Ignore if User's marker clicked
if(markerId < 0)
return;
try {
Venue venue = venueList.get(markerId);
if(venue.getCan_checkin().equalsIgnoreCase("true")) {
Fragment fragment = VenueFragment.newInstance(venue);
if(fragment != null)
changeFragmentLister.OnReplaceFragment(fragment);
else
Log.e(TAG, "Error! venue shouldn't be null");
}
} catch(NumberFormatException e) {
e.printStackTrace();
} catch(IndexOutOfBoundsException e) {
e.printStackTrace();
}
}
});

Okay finally I found a replacement way to solve my problem. The interesting problem is when you assign a marker to map, it's id is 'm0'. When you remove it from map and assign new marker you expect the id should be 'm0' but it's 'm1'. Therefore, it showed me the id is not trustable. So I defined List<Marker> markerList = new ArrayList<Marker>(); somewhere in onActivityCreated() of my fragment.
Then changed above code with following one. hope it helps others if they have similar issue with markers.
private void displayData(final List<Venue> venueList) {
Marker marker;
// Removes all markers, overlays, and polylines from the map.
googleMap.clear();
markerList.clear();
// Zoom in, animating the camera.
googleMap.animateCamera(CameraUpdateFactory.zoomTo(ZOOM_LEVEL), 2000, null);
// Add marker of user's position
MarkerOptions userIndicator = new MarkerOptions()
.position(new LatLng(lat, lng))
.title("You are here")
.snippet("lat:" + lat + ", lng:" + lng);
marker = googleMap.addMarker(userIndicator);
// Log.e(TAG, "Marker id '" + marker.getId() + "' added to list.");
markerList.add(marker);
// Add marker of venue if there is any
if(venueList != null) {
for (Venue venue : venueList) {
String guys = venue.getMaleCount();
String girls = venue.getFemaleCount();
String checkinStatus = venue.getCan_checkin();
if (checkinStatus.equalsIgnoreCase("true"))
checkinStatus = "Checked In - ";
else
checkinStatus = "";
MarkerOptions markerOptions = new MarkerOptions()
.position(new LatLng(Double.parseDouble(venue.getLatitude()), Double.parseDouble(venue.getLongitude())))
.title(venue.getName())
.snippet(checkinStatus + "Guys:" + guys + " and Girls:" + girls)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.ic_orange_pin));
marker = googleMap.addMarker(markerOptions);
// Log.e(TAG, "Marker id '" + marker.getId() + "' added to list.");
markerList.add(marker);
}
}
// Move the camera instantly to where lat and lng shows.
if(lat != 0 && lng != 0)
googleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(lat, lng), ZOOM_LEVEL));
googleMap.setInfoWindowAdapter(new GoogleMap.InfoWindowAdapter() {
#Override
public View getInfoWindow(Marker marker) {
return null;
}
#Override
public View getInfoContents(Marker marker) {
return null;
}
});
googleMap.setOnInfoWindowClickListener(new GoogleMap.OnInfoWindowClickListener() {
#Override
public void onInfoWindowClick(Marker marker) {
int markerId = -1;
String str = marker.getId();
Log.i(TAG, "Marker id: " + str);
for(int i=0; i<markerList.size(); i++) {
markerId = i;
Marker m = markerList.get(i);
if(m.getId().equals(marker.getId()))
break;
}
markerId -= 1; // Because first item of markerList is user's marker
Log.i(TAG, "Marker id " + markerId + " clicked.");
// Ignore if User's marker clicked
if(markerId < 0)
return;
try {
Venue venue = venueList.get(markerId);
if(venue.getCan_checkin().equalsIgnoreCase("true")) {
Fragment fragment = VenueFragment.newInstance(venue);
if(fragment != null)
changeFragmentLister.OnReplaceFragment(fragment);
else
Log.e(TAG, "Error! venue shouldn't be null");
}
} catch(NumberFormatException e) {
e.printStackTrace();
} catch(IndexOutOfBoundsException e) {
e.printStackTrace();
} catch (NullPointerException e) {
e.printStackTrace();
}
}
});
}

If you want to clear "all markers, overlays, and polylines from the map", use clear() on your GoogleMap.

Use map.clear() to remove all markers from Google map

Suppose there is an ArrayList of 2 locations. Now, you display markers on the map based on that array. There will be two markers. When you click on the first marker it gives you a marker index m0 and the second is m1.
Say that you refresh location array and now you got an array with 3 locations. You got 3 markers. But when you click on the first one, it gives you marker index m2 (as if it continues counting from the first location arraw) the second is m3 and the third is m4. What you actually want is to make it as m0, m1, m2.
Now, when you build you location array you probably call location.add("you location")... and when you rebuild it (refresh it) you call location.clear() first and then build it again.
SOLUTION:
First, make another dummy array similar to location array and build it in for loop together with a real location array: locaionDummy.add(i) but don't you EVER refresh it - that way it keeps building and you will know how many locations you've ever had from the very beginning.
Second, do something like this (example of setting image) with mIndex as int variable:
void locatePins() {
mIndex = locationDummy.size()-location.size();
for (int i = 0; i < userID.size(); i++) {
LatLng pgLocation = new LatLng(Double.parseDouble(latArr.get(i)), Double.parseDouble(lngArr.get(i)));
myMap.setInfoWindowAdapter(new GoogleMap.InfoWindowAdapter() {
#Override
public View getInfoWindow(Marker marker) {
View view = getLayoutInflater().inflate(R.layout.map_marker_info, null);
RelativeLayout markerInfo= view.findViewById(R.id.markerInfo);
TextView name = view.findViewById(R.id.userName);
TextView details = view.findViewById(R.id.userInfo);
ImageView img = view.findViewById(R.id.userImg);
name.setText(marker.getTitle());
details.setText(marker.getSnippet());
img.setImageBitmap (bmImg.get(Integer.parseInt(marker.getId().replaceAll("[^\\d.]", ""))-mIndex));
return view;
}
#Override
public View getInfoContents(Marker marker) {
return null;
}
// ... the rest of the code
}
}
The key is to subtract the real location.size() from a locationDummy.size() to get a number int mIndex that you will subtract later on from marker.getId()

If you need to remove only the markers, and leave other things such as ground overlay,etc there, use:
marker.remove();
or if you have many:
if(markers!=null&&mMap!=null){
for(int i=0;i<markers.size();i++){
markers.get(i).remove();
}
}
where
List<Marker> markers = new ArrayList<>();

Getting latitude & longitude from address in android

i am try to get latitude & longitude from address , problem is that .. when i give only city name than it give me correct latitude & longitude and when i give complete address (like state , city name , street No.) than it do not give me correct latitude & longitude ...
thanks for your cooperative response ...
my code is ..
//String addressStr = "faisalabad";/// this give me correct address
String addressStr = "Sainta Augustine,FL,4405 Avenue A";
Geocoder geoCoder = new Geocoder(MapClass.this, Locale.getDefault());
try {
List<Address> addresses =
geoCoder.getFromLocationName(addressStr, 1);
if (addresses.size() > 0) {
latitude = addresses.get(0).getLatitude(); longtitude =
addresses.get(0).getLongitude(); }
} catch (IOException e) { // TODO Auto-generated catch block
e.printStackTrace(); }
pos = new LatLng(latitude, longtitude);
googleMap.addMarker(new MarkerOptions().icon(
BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_RED))
.position(pos));
googleMap.animateCamera(CameraUpdateFactory.newLatLngZoom(pos, 15));
googleMap.animateCamera(CameraUpdateFactory.zoomTo(10), 2000, null);

i don it ... :)
only sequence is incorrect ...
first give street address than city name and than state ... it give me correct latitude and longitude from address .. :)
and change
Geocoder geoCoder = new Geocoder(MapClass.this, Locale.getDefault());
to
Geocoder geoCoder = new Geocoder(MapClass.this);
thanks, all of you for your time ...

This is my solution :
private void createMarkerWithLocation() {
/* Use the LocationManager class to obtain GPS locations */
LocationManager mlocManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
mlocManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 300000, 40, this);
Location location = mlocManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
/*check both providers even for lastKnownLocation*/
if (location == null)
location = mlocManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if(location != null) {
double latitude = location.getLatitude();
double longitude = location.getLongitude();
LatLng currentLatLng = new LatLng(latitude, longitude);
if(isConnected(this)) {
Geocoder gCoder = new Geocoder(ChoiceDestinationActivity.this);
List<Address> addresses = gCoder.getFromLocation(latitude, longitude, 1);
String address = addresses.get(0).getAddressLine(0);
String city = addresses.get(0).getAddressLine(1);
String country = addresses.get(0).getAddressLine(2);
Toast.makeText(this, country + ", " + city + ", " + address, Toast.LENGTH_SHORT).show();
marker = map.addMarker(new MarkerOptions()
.position(currentLatLng)
.title(city)
.snippet(address)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.marker)));
}
}
}
public static boolean isConnected(Context context) {
NetworkInfo ni = ((ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE)).getActiveNetworkInfo();
return (ni!=null && ni.isAvailable() && ni.isConnected());
}
I use it to add a marker on google map. It allows you to retrieve all the information regarding the location of the user.
I hope you have helped!