How to get current location in Android

Question

I m having troubles of getting my current position coordinates using the NETWORK provider of android location system    Already read a lot of tutorials and implemented 4 or 5 existing classes to my project and all of them are giving me the last coordinates but not the current ones   I m pretty sure that the problem is something fundamental that I am missing but I am not able to understand what exactly it is    Codes I m using now   This is my main Activity   package com example locationtests   import android os Bundle  import android app Activity  import android view Menu  import android widget TextView   public class MainActivity extends Activity     Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout activity main       GPSTracker mGPS   new GPSTracker this        TextView text    TextView  findViewById R id texts       if mGPS canGetLocation        mGPS getLocation        text setText  Lat  mGPS getLatitude    Lon  mGPS getLongitude          else          text setText  Unabletofind            System out println  Unable              Override public boolean onCreateOptionsMenu Menu menu           Inflate the menu  this adds items to the action bar if it is present      getMenuInflater   inflate R menu main  menu       return true         This is the class I m using for Tracking   package com example locationtests   import android app AlertDialog  import android content Context  import android content DialogInterface  import android content Intent  import android location Location  import android location LocationListener  import android location LocationManager  import android os Bundle  import android provider Settings  import android util Log   public final class GPSTracker implements LocationListener        private final Context mContext          flag for GPS status     public boolean isGPSEnabled   false          flag for network status     boolean isNetworkEnabled   false          flag for GPS status     boolean canGetLocation   false       Location location     location     double latitude     latitude     double longitude     longitude         The minimum distance to change Updates in meters     private static final long MIN DISTANCE CHANGE FOR UPDATES   1     10 meters         The minimum time between updates in milliseconds     private static final long MIN TIME BW UPDATES   1     1 minute         Declaring a Location Manager     protected LocationManager locationManager       public GPSTracker Context context            this mContext   context          getLocation                          Function to get the user s current location                 return             public Location getLocation             try               locationManager    LocationManager  mContext                      getSystemService Context LOCATION SERVICE                   getting GPS status             isGPSEnabled   locationManager                      isProviderEnabled LocationManager GPS PROVIDER                Log v  isGPSEnabled         isGPSEnabled                   getting network status             isNetworkEnabled   locationManager                      isProviderEnabled LocationManager NETWORK PROVIDER                Log v  isNetworkEnabled         isNetworkEnabled                if  isGPSEnabled    false  amp  amp  isNetworkEnabled    false                       no network provider is enabled               else                   this canGetLocation   true                  if  isNetworkEnabled                        location null                      locationManager requestLocationUpdates                              LocationManager NETWORK PROVIDER                              MIN TIME BW UPDATES                              MIN DISTANCE CHANGE FOR UPDATES  this                       Log d  Network    Network                        if  locationManager    null                            location   locationManager                                  getLastKnownLocation LocationManager NETWORK PROVIDER                           if  location    null                                latitude   location getLatitude                                longitude   location getLongitude                                                                                         if GPS Enabled get lat long using GPS Services                 if  isGPSEnabled                        location null                      if  location    null                            locationManager requestLocationUpdates                                  LocationManager GPS PROVIDER                                  MIN TIME BW UPDATES                                  MIN DISTANCE CHANGE FOR UPDATES  this                           Log d  GPS Enabled    GPS Enabled                            if  locationManager    null                                location   locationManager                                      getLastKnownLocation LocationManager GPS PROVIDER                               if  location    null                                    latitude   location getLatitude                                    longitude   location getLongitude                                                                                                                             catch  Exception e                e printStackTrace                       return location                        Stop using GPS listener Calling this function will stop using GPS in your        app               public void stopUsingGPS             if  locationManager    null                locationManager removeUpdates GPSTracker this                                   Function to get latitude               public double getLatitude             if  location    null                latitude   location getLatitude                          return latitude         return latitude                        Function to get longitude               public double getLongitude             if  location    null                longitude   location getLongitude                          return longitude         return longitude                        Function to check GPS wifi enabled                 return boolean               public boolean canGetLocation             return this canGetLocation                        Function to show settings alert dialog On pressing Settings button will        lauch Settings Options               public void showSettingsAlert             AlertDialog Builder alertDialog   new AlertDialog Builder mContext               Setting Dialog Title         alertDialog setTitle  GPS is settings                Setting Dialog Message         alertDialog                  setMessage  GPS is not enabled  Do you want to go to settings menu                 On pressing Settings button         alertDialog setPositiveButton  Settings                   new DialogInterface OnClickListener                         public void onClick DialogInterface dialog  int which                            Intent intent   new Intent                                  Settings ACTION LOCATION SOURCE SETTINGS                           mContext startActivity intent                                                         on pressing cancel button         alertDialog setNegativeButton  Cancel                   new DialogInterface OnClickListener                         public void onClick DialogInterface dialog  int which                            dialog cancel                                                          Showing Alert Message         alertDialog show                Override     public void onLocationChanged Location location                Override     public void onProviderDisabled String provider                Override     public void onProviderEnabled String provider                Override     public void onStatusChanged String provider  int status  Bundle extras               This is my AndroidManifest xml   lt  xml version  1 0  encoding  utf-8   gt   lt manifest xmlns android  http   schemas android com apk res android      package  com example locationtests      android versionCode  1      android versionName  1 0   gt       lt uses-permission android name  android permission CAMERA    gt       lt uses-permission android name  android permission ACCESS FINE LOCATION    gt       lt uses-permission android name  android permission ACCESS COARSE LOCATION    gt       lt uses-permission android name  android permission INTERNET  gt  lt  uses-permission gt       lt uses-permission android name  android permission ACCESS WIFI STATE    gt        lt uses-permission android name  android permission ACCESS NETWORK STATE    gt       lt uses-permission android name  android permission VIBRATE    gt       lt uses-feature android name  android hardware camera    gt       lt uses-feature android name  android hardware location  android required  true    gt       lt uses-feature android name  android hardware location gps  android required  false    gt        lt uses-sdk         android minSdkVersion  8          android targetSdkVersion  17    gt        lt application         android allowBackup  true          android icon   drawable ic launcher          android label   string app name          android theme   style AppTheme   gt           lt activity             android name  com example locationtests MainActivity              android label   string app name   gt               lt intent-filter gt                   lt action android name  android intent action MAIN    gt                    lt category android name  android intent category LAUNCHER    gt               lt  intent-filter gt           lt  activity gt       lt  application gt    lt  manifest gt    Actually GPS positioning works fine  but NETWORK positioning dosn t  When Ive turned devices GPS on coordinates keep changing while i m moving  but the same  doesn t happen when I have turn it off and relay on the NETWORK PROVIDER

User · Accepted Answer

First you need to define a LocationListener to handle location changes   private final LocationListener mLocationListener   new LocationListener          Override     public void onLocationChanged final Location location              your code here            Then get the LocationManager and ask for location updates   Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState        mLocationManager    LocationManager  getSystemService LOCATION SERVICE        mLocationManager requestLocationUpdates LocationManager GPS PROVIDER  LOCATION REFRESH TIME              LOCATION REFRESH DISTANCE  mLocationListener       And finally make sure that you have added the permission on the Manifest    For using only network based location use this one   lt uses-permission android name  android permission ACCESS COARSE LOCATION   gt    For GPS based location  this one   lt uses-permission android name  android permission ACCESS FINE LOCATION   gt

User · Answer

You need to write code in the OnLocationChanged method  because this method is called when the location has changed  I e  you need to save the new location to return it if getLocation is called   If you don t use the onLocationChanged it always will be the old location

User · Answer

I m using this tutorial and it works nicely for my application   In my activity I put this code   GPSTracker tracker   new GPSTracker this       if   tracker canGetLocation              tracker showSettingsAlert          else           latitude   tracker getLatitude            longitude   tracker getLongitude            also check if your emulator runs with Google API

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