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[Android-Location]Can not get Longitude and Latitude from LocationManager

I used LocationManager to get user address by "Longitude" and "Latitude" but when i call location.getLongitude() and location.getLatitude(), it return 0 back to me. I manage to Google but have nobody meet my issue.
Mr.Jeremy Edwards suggest me that:
Make sure that network based location is enabled in the phone's settings. You can detect this situation and prompt the user to enable it if you really need it.
I believe this is the line of code to launch this activity.
I do that but it can help. Sometime that give me Longitude and Latitude, some time not.
Here is my code:
String locationProvider = LocationManager.NETWORK_PROVIDER;
LocationManager locationManager = (LocationManager) this
.getSystemService(Context.LOCATION_SERVICE);
Location location = locationManager
.getLastKnownLocation(locationProvider);
The permission in the AndroidMainfest.xml:
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
Can anyone help me? Thank you in advance!

Tower location in Android

Below is my code:
private Location getLastKnownLoaction(boolean enabledProvidersOnly){
LocationManager manager = mActivityContext.getSystemService(Context.LOCATION_SERVICE);
Location location = null;
List<String> providers = manager.getProviders(enabledProvidersOnly)
for(String provider : providers){
location = manager.getLastKnownLocation(provider);
//maybe try adding some Criteria here
if(location != null) return location;
}
//at this point we've done all we can and no location is returned
return null;
}
I have seen tower location being displayed in older Nokia phones. How do I implement similar functionality in Android?"

Make sure you have this on your manifest
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
And also must try it on real device not simulator.

It is not possible to get only tower location in android. What you can do is following :
In your manifest, add permission :
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
and in your code, use
Location location = manager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
It helps you retrieve network based location. If its course, It will provide you with Tower based location most probably.
Also if you get a null in getting last location, you can request for a new location.

LocationManager sending null

I am using Google Map V2 and i trying to get the current location.But it is always returning null .
Code
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
Criteria criteria = new Criteria();
provider = locationManager.getBestProvider(criteria, false);
Location location = locationManager.getLastKnownLocation(provider);
Every time i am getting location null .My GPS is working fine in my device what can the issue please help me.

Per the getLastKnownLocation documentation:
If the provider is currently disabled, null is returned.
as you are using getBestProvider(criteria, false) you are saying you allow providers that are not enabled (that's what false means) - switch it to true if you only want to look at enabled providers (which will assure that getLastKnownLocation does not return null).
Note that the getLastKnownLocation could be very out of date and you may still want to look for location updates if you need to get a recent location.

There are different approach. First of all be sure that you have all required permission in your manifest:
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
If you only want an approximate location you can get the lastlocation (GPS or NETWORK)
if(_locationManager != null)
{
if(_locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER) != null)
return new Location(_locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER),true);
else if(_locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER) != null)
return new Location(_locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER),true);
}

Get current location using wifi?

How can i get current location using WiFi?
In my project using gps I can get current location ...
How can I use network service in android?
LocationManager mlocManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
LocationListener currentlocation = new CurrentLocation();
mlocManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0,
currentlocation);
But I want current location WiFi?
Can anyone help me for getting current location using WiFi?

Try to use NETWORK_PROVIDER.
Please note, that you will have to amend your AndroidManifest.xml as well by adding:
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

Android Gps location

I enabled the GPS in my device but I am not getting the loaction:
LocationManager lm = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
if(lm.isProviderEnabled(LocationManager.GPS_PROVIDER))
{
Location location = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if(location!=null)
{
showCurrentAddress(location);
}
}
But here I am gettin location is null and I added the following permissions to my code:
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
Could you please help?

lm.getLastKnownLocation can return null because that is a getter for the last known location.
Try using lm.requestLocationUpdates(LocationListener).

Hi check this tutorial for GPS location , i am also using this code for getting latitude and longitudeUsing GPS to get current location – Android tutorial check this on your device not on emulator first time just wait for few seconds..