Wednesday, March 24, 2010

Getting Current location from GPS in Android

We can get the current location from Android phones using

- GPS provider
- Network Provider

For this, first create an instance of location manager.

Create a class which implements the LocationListener

LocationManager locationManager = (LocationManager) getSystemService(Context. LOCATION_SERVICE);

Then in the manifest we need to give the permission as,


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

For GPS provider, we will use this statement,


locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, this);


and for getting information from network provider, that means , we want to get the current location when inside a building or where, GPS dont work network is there, then we can use this statement for getting location information as,


locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0,this);


Then from onLocationChanged() in the locationListener, we will get the latitude and longitude using getLatitude() and getLongitude()

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