Develop Reference

How to show locations name both in English and local language in Google Maps?

I want to show locations name both in English and local language like Maps app show in android.
Here is my code
public class MapsActivity extends FragmentActivity implements
OnMapReadyCallback {
private final static String TAG = MapsActivity.class.getSimpleName();
private GoogleMap mMap;
private SupportMapFragment mapFragment;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}
#Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
LatLng dhaka = new LatLng(23.8103, 90.4125);
mMap.addMarker(new MarkerOptions().position(dhaka));
mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(dhaka,10f));
}
}
But when i run this code all locations name in map is in English. But i want to the output like this
here where the location name is both in English and Bengali.

You can get the necessary info from the following links
https://developers.google.com/maps/documentation/javascript/geocoding#GeocodingRegionCodes
http://www.iana.org/assignments/language-subtag-registry/language-subtag-registry

Access GoogleMap object of one Activity in another Activity

I extend my app with google map activity. it created a mapclass and extends FragmentActivity implements OnMapReadyCallback.
the onMapReadyCallBack return GoogleMap object as below code.
public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {
public GoogleMap mMap;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_user);
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}
#Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
// Add a marker in Sydney and move the camera
LatLng sydney = new LatLng(-34, 151);
mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
}
}
I want to access mMap on my MainActivity class to do some operation. i create a button with onclick attribute to gotolocation method. but it return error becuase the map object is null; which is the proper way to access the GoogleMap object in my activity class.
public void gotoLocation(View v){
if (mMap != null){
LatLng sydney = new LatLng(-34, 151);
mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Kabul"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
}else{
Log.d("Map object", "It si null==============");
}
}

Keep in mind that only one Activity at a time can be shown to the user, so there is no need to access the mMap variable from MainActivity.
Assuming you want to open up MapsActivity when the gotoLocation() button is clicked, you can pass the data associated with the location from MainActivity over to MapsActivity.
First, prepare the LatLng and description in MainActivity in order to send it to MapsActivity when the button is clicked:
public void gotoLocation(View v){
LatLng goToLocation = new LatLng(34.5392354, 69.1378334);
Bundle args = new Bundle();
args.putParcelable("latLon", goToLocation);
args.put("desc", "Marker in Kabul");
Intent i = new Intent(this, MapsActivity.class);
i.putExtras(args);
startActivity(i);
}
Then, when MapsActivity is opened, it will retrieve the info, and modify the Marker accordingly:
public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {
public GoogleMap mMap;
LatLng mLatLng;
String mDescription;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_user);
//Get the data sent from MainActivity
Intent intent = getIntent();
mLatLng = intent.getParcelableExtra("latLon");
mDescription = intent.getStringExtra("desc");
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}
#Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
//Use the data sent from MainActivity:
if (mLatLng != null) {
// Add a marker for location/description sent from MainActivity
mMap.addMarker(new MarkerOptions().position(mLatLng).title(mDescription));
mMap.moveCamera(CameraUpdateFactory.newLatLng(mLatLng));
}
}
}

In addition to first answer, the mMap object is null because it is yet to be instantiated and onMapReady callback has not yet been called.
take a look at the docs for OnMapReadyCallback interface https://developers.google.com/android/reference/com/google/android/gms/maps/OnMapReadyCallback

I want to replace a Marker from a map when user visits that location ( gets near a Marker )

First, I plot a Marker like this:
public void addMarker(String title,String lat,String Lng,int id,String address,int f)
{
marker= mMap.addMarker(new MarkerOptions().snippet(title)
.title(title+", "+address)
.position(new LatLng(Double.valueOf(lat), Double.valueOf(Lng)))
.icon(BitmapDescriptorFactory.fromResource(id)));
LatLng coordinate = new LatLng(Double.valueOf(lat), Double.valueOf(Lng));
CameraUpdate yourLocation = CameraUpdateFactory.newLatLngZoom(coordinate, 10);
mMap.animateCamera(yourLocation);
mMarkerArray.add(marker);
}
After that I am trying to replace the Marker with another icon when ever I reached at any existing Location
#Override
public void onLocationChanged(Location location)
{
Log.d("latitude_main", "onlocation???");
Geocoder geocoder;
List<Address> addresses;
geocoder = new Geocoder(this, Locale.getDefault());
double latitude = location.getLatitude();
double longitude = location.getLongitude();
Log.e("latitude_main", "latitude--" + latitude+"longitude="+longitude);
current_lat= String.valueOf(latitude);
current_lng= String.valueOf(longitude);
Log.e("latitude_main","size-=="+salesmanlocationArrayList.size() );
for(int i=0;i<salesmanlocationArrayList.size();i++)
{
if(salesmanlocation.getLati().equals("12.9165757") && salesmanlocation.getLongi().equals("77.6101163"))
{
mMap.addMarker(new MarkerOptions()
.snippet(""+i).title(salesmanlocation.getFirm_name()+", "+salesmanlocation.getAddress())
.position(new LatLng(Double.valueOf(salesmanlocation.getLati().toString()), Double.valueOf(salesmanlocation.getLongi().toString())))
.icon(BitmapDescriptorFactory.fromResource(R.drawable.event_events_select)));
}
mapFragment.getMapAsync(this);
}
}
I want to remove the marker from the map when the user visits that location.

You can simply define one OnMyLocationChangeListener class that performs your tasks, and set it on your GoogleMap instance, this way you can use it whenever you want in your application.
Step 1 - define your listener
public class MyMarkerLocationListener implements GoogleMap.OnMyLocationChangeListener {
List<Marker> markerList;
int MY_DISTANCE;
GoogleMap mMap;
public MyMarkerLocationListener(List<Marker> markerList, int meters, GoogleMap mMap)
{
this.markerList = markerList;
this.MY_DISTANCE = meters;
this.mMap = mMap;
}
#Override
public void onMyLocationChange(Location location) {
// your code/logic
//...
Location myNewLocation = location;
Location someMarkerLocation = new Location("some location");
//for each marker on your list
//check if you are close to it
for (Marker m : markerList) {
LatLng markerPosition = m.getPosition();
someMarkerLocation.setLatitude(markerPosition.latitude);
someMarkerLocation.setLongitude(markerPosition.longitude);
if (myNewLocation.distanceTo(someMarkerLocation) < MY_DISTANCE) {
//remove marker
m.remove();
//or if you still want to use it later
//m.setVisible(false);
// add your new marker
//mMap.addMarker(new MarkerOptions().icon()....);
}
}
}
}
After defining your class you just set the listener on your map on your fragment or activity code =)
Step 2 - instanciate the listener and set it
MyMarkerLocationListener myListener = new MyMarkerLocationListener(mMarkerArray, 100, mMap);
mMap.setOnMyLocationChangeListener(myListener);
UPDATE to answer your question in the comments:
You should initialize mMap before using it, take a look at this piece of code from this Stackoverflow question
public class MapPane extends Activity implements OnMapReadyCallback {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.map_activity);
MapFragment mapFragment = (MapFragment) getFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}
#Override
public void onMapReady(GoogleMap map) {
//DO WHATEVER YOU WANT WITH GOOGLEMAP
map.setMapType(GoogleMap.MAP_TYPE_HYBRID);
map.setMyLocationEnabled(true);
map.setTrafficEnabled(true);
map.setIndoorEnabled(true);
map.setBuildingsEnabled(true);
map.getUiSettings().setZoomControlsEnabled(true);
}
}
don't forget your activity should implement the OnMapReadyCallback interface so the onMapReady method is called
you can use the map only after it is ready
Hope this helps!

How to addMarker directly on GoogleMap after click button setMyLocationEnabled?

I made a code.
In this code, when i click a map, there will be a marker on clicked point.
This is my Code
public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {
private GoogleMap mMap;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}
#Override
public void onMapReady(final GoogleMap googleMap) {
mMap = googleMap;
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
mMap.setMyLocationEnabled(true);
} else {
Toast.makeText(getApplicationContext(), "oh, no", Toast.LENGTH_LONG).show();
}
googleMap.setOnMapClickListener(new GoogleMap.OnMapClickListener() {
#Override
public void onMapClick(LatLng point) {
String lat = String.valueOf(point.latitude);
String lng = String.valueOf(point.longitude);
MarkerOptions marker = new MarkerOptions().position(
new LatLng(point.latitude, point.longitude)).title("ok");
mMap.addMarker(marker);
}
});
}
}
Question :
What i want is that when i click SetMylocationEnable button, there also added a new marker. And because i want marker is only one in whole map, another marker that has been in the map before is to be removed. How can i do it? Would you teach me?
You can see what button i saying is, in picture. (picture is from : Enable my location icon Googlemap v2)

mMap.setOnMyLocationButtonClickListener(new OnMyLocationButtonClickListener() {
#Override
public boolean onMyLocationButtonClick() {
Location location = getLocation();
MarkerOptions marker = new MarkerOptions().position(
new LatLng(location.getLatitude(), location.getLongitude())).title("ok");
mMap.addMarker(marker);
return true;
}
});
private Location getLocation() {
LocationManager locationManager = (LocationManager)
getSystemService(Context.LOCATION_SERVICE);
Criteria criteria = new Criteria();
return locationManager.getLastKnownLocation(locationManager
.getBestProvider(criteria, false));
}

keep a reference to the marker, if the reference is null then create the marker as you have done, if it is not, then edit the marker and change its location

Adding Multiple Markers Google Maps

I am trying to add a marker all depending on what activity the user is on. For example, if the user is in the location1 activity and clicks the button to open maps, it should open Google Maps with a marker at where location1 is. Alternatively, if the user is in the location2 activity and clicks the button to open maps, it should open Google Maps with a marker at where location 2 is.
I have it working when they click on one activity, it brings them to Google Maps and has a marker at where that location is. I have simply tried to copy the code and paste it below with the edited names in it, but if I click a different activity to go to maps, it brings me to the same marker as previously.
My Code for GoogleMapsActivity is below:
public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {
private GoogleMap mMap;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}
#Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
//mMap = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();
// Add a marker at the Oval and move the camera
LatLng oval = new LatLng(53.3484013, -6.2605243);
mMap.addMarker(new MarkerOptions().position(oval).title("Oval Pub"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(oval));
/*
// Add a marker at Diceys and move the camera
LatLng diceys = new LatLng(53.3358088,-6.2636688);
mMap.addMarker(new MarkerOptions().position(diceys).title("Diceys Nightclub"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(diceys));
*/
}
public void changeType(View view)
{
if(mMap.getMapType() == GoogleMap.MAP_TYPE_NORMAL)
{
mMap.setMapType(GoogleMap.MAP_TYPE_SATELLITE);
}
else
mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
}}
As you can see, I have commented out the code where I have tried adding a marker for a different location, but it seems to bring me to the same location as above.
Not sure if this is something simple or not as I am new to Google Maps in Android.
Any help would be greatly appreciated.
Thank you.

ArrayList<MarkerData> markerArray = new ArrayList<MarkerData>();
for(int i = 0 ; i < markersArray.size() ; i++ ) {
createMarker(markersArray.get(i).getLatitude(), markersArray.get(i).getLongitude(), markersArray.get(i).getTitle(), markersArray.get(i).getSnippet(), markersArray.get(i).getIconResID());
}
....
protected void createMarker(double lat, double lon, String title, String snippet, int iconResID) {
return googleMap.addMarker(new MarkerOptions()
.position(new LatLng(lat, lon))
.anchor(0.5f, 0.5f)
.title(title)
.snippet(snippet);
.icon(BitmapDescriptorFactory.fromResource(iconResID)));
}

Tying it all together:
ArrayList<LatLng> locations = new ArrayList();
locations.add(new LatLng(30.243442, -1.432320));
locations.add(new LatLng(... , ...));
.
.
.
for(LatLng location : locations){
mMap.addMarker(new MarkerOptions()
.position(location)
.title(...)
}

In First Location activity:
Intent i = new Intent(FirstLocationActivity.this, MapsActivity.class);
String keyLatitude = ""; //enter the value
String keyLongitude = ""; //enter the value
i.putExtra("latitude", keyLatitude );
i.putExtra("longitude", keyLongitude );
startActivity(i);
similarly do the same for activity two location, add its corresponding latitude and longitude in extra
In your mapsActivity,
String latitude="";
String longitude ="";
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.table);
Bundle bundle = getIntent().getExtras();
latitude = bundle.getString("latitude");
longitude = bundle.getString("longitude");
}
#Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
//mMap = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();
// Add a marker at the Oval and move the camera
LatLng oval = new LatLng(latitude,longitude);
mMap.addMarker(new MarkerOptions().position(oval).title("Oval Pub"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(oval));
}