In my app I am using the built in MyLocationOverlay on my map.
myLocationOverlay = new MyLocationOverlay(this, mapView){
public void onLocationChanged(Location loc){
super.onLocationChanged(loc);
List<Address> address;
try{
Geocoder mGC = new Geocoder(context,Locale.ENGLISH);
address = mGC.getFromLocation(loc.getLatitude(), loc.getLongitude(), 1);
if (address !=null){
currentAddr = address.get(0);
mHandler.post(updateUI);
}
}catch(IOException e){}
}
};
With the above code I can get the address and visually see where I am. Now i want to add a route overlay from where I am to some destination, how can I implement something like this? Is there some built in overlay for this as well?
Related
Hi I want place markers on all shoppers stop stores which are near to user current location. I am using following code
currently I am getting only 2 locations, I want set some radius and want to display all the stores also.
private class GeocoderTask extends AsyncTask<String, Void, List<Address>> {
#Override
protected List<Address> doInBackground(String... locationName) {
// Creating an instance of Geocoder class
Geocoder geocoder = new Geocoder(getBaseContext());
List<Address> addresses = null;
try {
// Getting a maximum of 3 Address that matches the input text
addresses = geocoder.getFromLocationName(locationName[0], 10);
} catch (IOException e) {
e.printStackTrace();
}
return addresses;
}
#Override
protected void onPostExecute(List<Address> addresses) {
if(addresses==null || addresses.size()==0){
Toast.makeText(getBaseContext(), "No Location found", Toast.LENGTH_SHORT).show();
}
// Clears all the existing markers on the map
googleMap.clear();
// Adding Markers on Google Map for each matching address
for(int i=0;i<addresses.size();i++){
Address address = (Address) addresses.get(i);
// Creating an instance of GeoPoint, to display in Google Map
latLng = new LatLng(address.getLatitude(), address.getLongitude());
String addressText = String.format("%s, %s",
address.getMaxAddressLineIndex() > 0 ? address.getAddressLine(0) : "",
address.getCountryName());
markerOptions = new MarkerOptions();
markerOptions.position(latLng);
markerOptions.title(addressText);
googleMap.addMarker(markerOptions);
// Locate the first location
if(i==0)
googleMap.animateCamera(CameraUpdateFactory.newLatLng(latLng));
}
}
}
but unable to get relevant results. Help me.
You should have a look at nearby search of Places API web service.
To make your life easier you can also use the Java Client for Google Maps Services located at github:
https://github.com/googlemaps/google-maps-services-java
Follow documentation of the Java Client library and you should be able to search nearby places for given location and radius.
I hope this helps!
I'm making an app with a Google Maps Activity and I want to place a marker there. How do I set a marker to a location, for example the White House, so that it opens up the info page in google maps when you press the maps button in the right corner? My code:
LatLng latLng = new LatLng(38.897677, -77.036531);
mMap.addMarker(new MarkerOptions().position(latLng).title("The White House"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
Here is answer of your question what I am perceived that actually you wants to implement a click Listener.
There are two ways to do it
mMap.setOnInfoWindowClickListener(new GoogleMap.OnInfoWindowClickListener( ) {
#Override
public void onInfoWindowClick(Marker marker) {
Toast.makeText(StoreMap.this, "Info window clicked", Toast.LENGTH_SHORT).show();
}
or use this one if you are intend to direct user just by clicking on marker.
GoogleMap.setOnMarkerClickListener(OnMarkerClickListener)
just implement as similar as above
more details
So you want your app to search for places? Try Geocoding. Here's my super simplified search method:
public void onSearch(String searchLocation) {
mGoogleMap.clear();
List<Address> addressList = null;
Address address = null;
LatLng latLng = null;
Geocoder geocoder = new Geocoder(mContext);
try {
addressList = geocoder.getFromLocationName(searchLocation, 1);
} catch (IOException e) {
e.printStackTrace();
}
address = addressList.get(0);
latLng = new LatLng(address.getLatitude(), address.getLongitude());
mGoogleMap.addMarker(new MarkerOptions().position(latLng).title(searchLocation));
mGoogleMap.animateCamera(CameraUpdateFactory.newLatLng(latLng));
}
I have the address to certain location in terms of a string. However i want to convert this address to Lattitude and Longitude. So i used the code given below to convert into geopoint. But this geopoint is not getting added to the map. The map always shows the default map thats the entire world.
public GeoPoint getLocationFromAddress(String strAddress) {
Geocoder coder = new Geocoder(this);
List<Address> address;
GeoPoint p1 = null;
try {
address = coder.getFromLocationName(strAddress, 5);
if (address == null) {
return null;
}
Address location = address.get(0);
location.getLatitude();
location.getLongitude();
p1 = new GeoPoint((int) (location.getLatitude() * 1E6),
(int) (location.getLongitude() * 1E6));
return p1;
} catch (IOException e) {
e.printStackTrace();
return p1;
}
}
Im new with maps and am not sure what Im doing wrong. Any suggestions?
Now that you know the latitude and longitude, you forgot to update the map to the specific location. You can do it like this:
int zoomNiveau = 15;
map.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(location.getLatitude(), location.getLongitude()), zoomNiveau));
With this code, the map will go to the location of the address. But you need to create a Marker and add it to the map if you want a Marker.
More info about the markers: https://developers.google.com/maps/documentation/android/marker
In my application, I have google maps and I'm currently showing my location using gps but i have a user input field where user can give their location, based on the user input my location should change to user location
You can use a CameraUpdate to change the position
LatLng latLng = user's position
CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLng(latLng)
map.moveCamera(cameraUpdate);
if the user inputs an address and not the coordinates (which is very likely) you can use a geocoder to get the coordinates from the address
Geocoder coder = new Geocoder(this);
List<Address> address;
try {
address = coder.getFromLocationName(strAddress,5);
if (address == null) {
return null;
}
Address location = address.get(0);
location.getLatitude();
location.getLongitude();
}
I have this problem.
I want to show a specific location on maps in android. Like if user has entered India in Edit text, then how can i show INDIA on Map. I basically want to know how to get the latitude and longitude of any location.
Please help
My Code:
public class Map extends Activity{
private GoogleMap map;
private LatLng myLoc;
#SuppressLint("NewApi") protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.map);
Intent i=getIntent();
String loc=i.getStringExtra("loc");
map = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();
Geocoder geoCoder = new Geocoder(getBaseContext(), Locale.getDefault());
try {
List<Address> addresses = geoCoder.getFromLocationName(
loc, 5);
if (addresses.size() > 0) {
myLoc = new LatLng(
(int) (addresses.get(0).getLatitude() * 1E6),
(int) (addresses.get(0).getLongitude() * 1E6));
map.setMapType(GoogleMap.MAP_TYPE_NORMAL);
CameraUpdate update = CameraUpdateFactory.newLatLngZoom(myLoc, 14);
map.animateCamera(update);
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
It is not Working. Please Help
It seems that Geocoder functions are blocked and use network. Because of onCreate is running on main thread, you can get this error(in older versions of android). Thus, you have to create AsyncTask and move geocoder's function to AsyncTask.doInBackground().
And after, in AsyncTask.onPostExecute() you should perfom the other operations with google map. (It will be on main thread in this case, how it must be)
Use
map.setMyLocationEnabled(true);
A blue circle will be appeared on map. It will show the current location.
When you select India from edittext call this function:
public void showSelectedCountry(String countryName) {
if (countryName.equals("India")) {
LatLngBounds boundsIndia = new LatLngBounds(new LatLng(23.63936, 68.14712), new LatLng(28.20453, 97.34466));
int padding = 0; // offset from edges of the map in pixels
CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngBounds(boundsIndia, padding);
mMap.animateCamera(cameraUpdate);
}
}