CODEWITHSUNDEEP
androidandroid-location
harshit
harshit

Reputation: 3846

Not able to get Location by GPS : Android

I am new to android. I am trying to get my location using GPS. I have included the permissions:

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.INTERNET"/>

Whenever I am trying to get my Location from LocationManager using getLastKnownLocation I am getting null object. Also, GPS is enabled. Here is my code:

LocationManager locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
Location location;
if (!locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
    Log.d("ManualLog", "GPS_DISABLED");
    Intent settingsIntent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    startActivity(settingsIntent);
} else {
    Log.d("ManualLog", "GPS_ENABLED");
    location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
}

Upvotes: 0

Views: 1193

Answers (3)

NickT
NickT

Reputation: 23873

locationManager.getLastKnownLocation will return null if the GPS has not had time to get a fix yet. Android does not provide a 'give me the location now' method. When the GPS has got a fix, the onLocationChanged() will run. It is event driven, you have to be patient and wait for that event. Once onLocationChanged() has run, then getLastKnownLocation() will return a non null value.

Upvotes: 2

Serdar Samancıoğlu
Serdar Samancıoğlu

Reputation: 740

Are you running it on emulator or device? If on emulator, you may need to send GPS data manually to emulator via "emulator control". In eclipse, you can find it Window>Open Perspective>DDMS.

If you are running on device, is it possible your device never received a GPS signal before?

Upvotes: 0

aymeric
aymeric

Reputation: 3895

Try to replace the last line by:

List<String> providers = locationManager.getProviders(true);
if(!providers.isEmpty()) {
    location = locationManager.getLastKnownLocation(providers.get(0));
} else {
   Log.d("ManualLog", "No provider");
}

Upvotes: 0

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