Here you can find the source of isGpsEnabled(Context context)
public static boolean isGpsEnabled(Context context)
//package com.java2s; import android.content.Context; import android.location.LocationManager; public class Main { public static boolean isGpsEnabled(Context context) { LocationManager lm = (LocationManager) context .getSystemService(Context.LOCATION_SERVICE); return lm.isProviderEnabled(LocationManager.GPS_PROVIDER); }//from ww w. java2 s . c om }