Develop Reference

How to Zoom and get latitude and longitude from mMap.setMyLocationEnabled(true) in Google Map (Android)

I was setting mMap.setMyLocationEnabled(true) and I am successfully getting my current location but...
Not able to zoom to that position.
Not able to get lat and lng from that position
From getting latitude and longitude I am using below code but it gives me null. I am calling below method from onMapReady(Google Map) and passing google map object.
private void goToCurrentLocation(GoogleMap map) {
Log.d("Tag", "inside");
Location loc = map.getMyLocation();
if (loc != null) {
LatLng point = new LatLng(loc.getLatitude(), loc.getLongitude());
Log.d("Tag=", "latlng=" + point);
map.animateCamera(CameraUpdateFactory.newLatLngZoom(point, 15));
}
}
Is there any alternative to getting latitude and longitude as getMyLocation deprecated?

use link provided in the answer to get current location and then zoom over that location using below code:
latLng = new LatLng(location.getLatitude(), location.getLongitude());
CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngZoom(latLng, 10);
mGoogleMap.animateCamera(cameraUpdate);
http://blog.teamtreehouse.com/beginners-guide-location-android

How to show a radius in maps android?

I have a eight different Longitude and latitude values in that any one value have longitude and latitude and remaining wont have values in that case I have to show a radius for that one value. Can anyone help me to solve this problem.
Thanks

GoogleMap has method addCircle so your just need to call it with appropriate params:
GoogleMap map;
MarkerOptions markerOptions = new MarkerOptions();
LatLng position = new LatLng(50, 50);
markerOptions.position(position);
Marker marker = map.addMarker(markerOptions);
Circle circle = map.addCircle(
new CircleOptions()
.center(position)
.radius(100)
.strokeWidth(0f)
.fillColor(getActivity().getResources().getColor(R.color.someColor))
);

Android Google Maps V2, how to get current location by gps/internet

Here I am getting the location, by writing hardcoded latitude and longitude. I used map.setMyLocationEnabled(true);, it gives me the current location in map. But I also want marker to reach upto the my current location.
Can you help to get latitude and longitude of my current position.
private final LatLng LOCATION = new LatLng(22.7515085, 75.8860726);
map = ((SupportMapFragment)getSupportFragmentManager().findFragmentById(R.id.map)).getMap();
map.setMyLocationEnabled(true);
map.addMarker(new MarkerOptions().position(LOCATION).title("It is my current position"));
CameraUpdate update = CameraUpdateFactory.newLatLngZoom(LOCATION, 6);
map.animateCamera(update);

Google map markers are disappearing instantly. How to make a marker remain constant?

I am adding markers on my map by fetching user locations stored in the remote server. The locations are displayed but within 3 seconds, the marker disappears. Any solution to this?? Below is my complete code.
protected void onPostExecute(Void result)
{
super.onPostExecute(result);
for(Users u:locList)
{
MarkerOptions markerOptions = new MarkerOptions();
double latitude1 = u.getLatitude();
double longitude1 = u.getLongitude();
LatLng latLng1 = new LatLng(latitude1, longitude1);
// Animating to the touched position
mGoogleMap.animateCamera(CameraUpdateFactory.newLatLng(latLng1));
if(userMarker!=null) userMarker.remove();
markerOptions = new MarkerOptions().position(new LatLng(latitude1, longitude1)).title(latLng1.toString());
// adding marker
userMarker = mGoogleMap.addMarker(markerOptions);
//userMarker.setVisible(true);
// Placing a marker on the touched position
mGoogleMap.addMarker(markerOptions);
markerOptions.visible(true);
}
}

please check your code do you use something like map.clear()

remove
userMarker.remove();
from your code...

I fixed the same issue by commenting out map.clear. Wow correct my grammar way to go get a life

How to get the Latitude and Longitude on Map in Android?

How can I get the Latitude and Longitude values of a particular location that I have long clicked on the map in Android?

For the long click, I suggest you check out http://www.kind-kristiansen.no/2010/handling-longpresslongclick-in-mapactivity/. This will go into detail on how to listen for long click events within the Maps API since there is little or no built-in functionality that I know of.
As for the lat/lng code, after you get the long click you can translate the pixels to coordinates.
public void recieveLongClick(MotionEvent ev)
{
Projection p = mapView.getProjection();
GeoPoint geoPoint = p.fromPixels((int) ev.getX(), (int) ev.getY());
// You can now pull lat/lng from geoPoint
}

You'll have to manage the LongClick event, and then use the code to find out longitude and latitude with the following code:
GeoPoint geoPoint=mapView.getProjection().fromPixels((int)event.getX(),(int)event.getY());
int latitude = geoPoint.getLatitudeE6();
int longitude = geoPoint.getLongitudeE6();
where 'event' is the object of 'MotionEvent'.
Use any other event according to your case.

It gives latitude and longitude on which point of map click
map.setOnMapClickListener(new OnMapClickListener() {
#Override
public void onMapClick(LatLng point) {
//myMap.addMarker(new MarkerOptions().position(point).title(point.toString()));
//The code below demonstrate how to convert between LatLng and Location
//Convert LatLng to Location
Location location = new Location("Test");
location.setLatitude(point.latitude);
location.setLongitude(point.longitude);
location.setTime(new Date().getTime()); //Set time as current Date
txtinfo.setText(location.toString());
//Convert Location to LatLng
LatLng newLatLng = new LatLng(location.getLatitude(), location.getLongitude());
MarkerOptions markerOptions = new MarkerOptions()
.position(newLatLng)
.title(newLatLng.toString());
map.addMarker(markerOptions);
}
});