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    <p>Here is the skeleton of the GPS <code>Service</code> I used in my tracking application, it has been tested, and works fine I can guarantee that. I hope it will help you out.</p> <pre><code>import java.util.Timer; import java.util.TimerTask; import android.app.Notification; import android.app.PendingIntent; import android.app.Service; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; import android.os.Bundle; import android.os.Handler; import android.os.IBinder; import android.os.PowerManager; import android.os.PowerManager.WakeLock; import android.preference.PreferenceManager; import android.util.Log; public class TrackingService extends Service { private static final String TAG = TrackingService.class.getSimpleName(); private static final long TIME_BETWEEN_UPDATES = 1000L; private static final long MINIMUM_DISTANCE_CHANGE = 0L; private WakeLock mWakeLock; private LocationManager mLocationManager; private final Timer mTimer = new Timer(); private Handler mHandler = new Handler(); private LocationListener mLocationListenerGps = new LocationListener() { public void onLocationChanged(Location location) { // Your code here } public void onStatusChanged(String provider, int status, Bundle extras) { } public void onProviderEnabled(String provider) { } public void onProviderDisabled(String provider) { } }; private void registerLocationListener() { if (mLocationManager == null) { Log.e(TAG, "TrackingService: Do not have any location manager."); return; } Log.d(TAG, "Preparing to register location listener w/ TrackingService..."); try { mLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, TIME_BETWEEN_UPDATES, MINIMUM_DISTANCE_CHANGE, mLocationListenerGps); Log.d(TAG, "...location listener now registered w/ TrackingService @ " + TIME_BETWEEN_UPDATES); } catch (RuntimeException e) { Log.e(TAG, "Could not register location listener: " + e.getMessage(), e); } } private void unregisterLocationListener() { if (mLocationManager == null) { Log.e(TAG, "TrackingService: Do not have any location manager."); return; } mLocationManager.removeUpdates(mLocationListenerGps); Log.d(TAG, "Location listener now unregistered w/ TrackingService."); } private TimerTask mCheckLocationListenerTask = new TimerTask() { @Override public void run() { mHandler.post(new Runnable() { public void run() { Log.d(TAG, "Re-registering location listener with TrackingService."); unregisterLocationListener(); registerLocationListener(); } }); } }; @Override public void onCreate() { super.onCreate(); mLocationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); registerLocationListener(); mTimer.schedule(mCheckLocationListenerTask, 1000 * 60 * 5, 1000 * 60); acquireWakeLock(); Log.d(TAG, "Service started..."); } @Override public void onStart(Intent intent, int startId) { handleStartCommand(intent, startId); } @Override public int onStartCommand(Intent intent, int flags, int startId) { handleStartCommand(intent, startId); return START_STICKY; } private void handleStartCommand(Intent intent, int startId) { Notification notification = new Notification(R.drawable.ic_launcher, getText(R.string.trackingservice_notification_rolling_text), System.currentTimeMillis()); PendingIntent contentIntent = PendingIntent.getActivity(this, 0, new Intent(this, MainActivity.class), PendingIntent.FLAG_UPDATE_CURRENT); notification.setLatestEventInfo(this, getText(R.string.trackingservice_notification_ticker_title), getText(R.string.trackingservice_notification_ticker_text), contentIntent); startForeground(1, notification); } @Override public void onDestroy() { stopForeground(true); mTimer.cancel(); mTimer.purge(); mHandler.removeCallbacksAndMessages(null); unregisterLocationListener(); releaseWakeLock(); super.onDestroy(); Log.d(TAG, "Service stopped..."); } private void acquireWakeLock() { try { PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); if (pm == null) { Log.e(TAG, "TrackRecordingService: Power manager not found!"); return; } if (mWakeLock == null) { mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); if (mWakeLock == null) { Log.e(TAG, "TrackRecordingService: Could not create wake lock (null)."); return; } } if (!mWakeLock.isHeld()) { mWakeLock.acquire(); if (!mWakeLock.isHeld()) { Log.e(TAG, "TrackRecordingService: Could not acquire wake lock."); } } } catch (RuntimeException e) { Log.e(TAG, "TrackRecordingService: Caught unexpected exception: " + e.getMessage(), e); } } /** * Releases the wake lock if it's currently held. */ private void releaseWakeLock() { if (mWakeLock != null &amp;&amp; mWakeLock.isHeld()) { mWakeLock.release(); mWakeLock = null; } } } </code></pre> <p>And in your AndroidManifest.xml file you need</p> <pre><code>&lt;uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/&gt; &lt;uses-permission android:name="android.permission.WAKE_LOCK"/&gt; </code></pre> <p>Just fill out the GPS location listener, Register the service in your <code>AndroidManifest.xml</code>, start the service from your activity, and enjoy.</p>
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    1. POUnable to detect user current location on android device
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    1. USAdam L. Mónos
    1. USAdam L. Mónos
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    1. COThank you for reply.. In my code if I use Network as location provider then it's working fine.But if I use gps as network provider it not giving any output. Any suggestion.. thank for your ans. I will try your answer as well.
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      1. USnilkash
 

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