Java tutorial
/* * This file is part of GPSLogger for Android. * * GPSLogger for Android is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 2 of the License, or * (at your option) any later version. * * GPSLogger for Android is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with GPSLogger for Android. If not, see <http://www.gnu.org/licenses/>. */ //TODO: Simplify email logic (too many methods) package com.umaps.gpslogger; import android.app.AlarmManager; import android.app.Notification; import android.app.NotificationManager; import android.app.PendingIntent; import android.app.Service; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.graphics.BitmapFactory; import android.location.Location; import android.location.LocationManager; import android.os.*; import android.preference.PreferenceManager; import android.support.v4.app.NotificationCompat; import android.support.v4.app.TaskStackBuilder; import android.util.Log; import com.google.android.gms.common.ConnectionResult; import com.google.android.gms.common.api.GoogleApiClient; import com.google.android.gms.location.ActivityRecognition; import com.google.android.gms.location.ActivityRecognitionResult; import com.google.android.gms.location.DetectedActivity; import com.umaps.gpslogger.common.*; import com.umaps.gpslogger.common.events.CommandEvents; import com.umaps.gpslogger.common.events.ServiceEvents; import com.umaps.gpslogger.loggers.FileLoggerFactory; import de.greenrobot.event.EventBus; import java.text.DecimalFormat; import java.text.NumberFormat; import java.util.*; public class GpsLoggingService extends Service { private static final String TAG = "GpsLoggingService"; private static NotificationManager notificationManager; private static int NOTIFICATION_ID = 8675309; private final IBinder binder = new GpsLoggingBinder(); AlarmManager nextPointAlarmManager; private NotificationCompat.Builder nfc = null; // --------------------------------------------------- // Helpers and managers // --------------------------------------------------- protected LocationManager gpsLocationManager; //private LocationManager passiveLocationManager; private LocationManager towerLocationManager; private GeneralLocationListener gpsLocationListener; private GeneralLocationListener towerLocationListener; //private GeneralLocationListener passiveLocationListener; private Intent alarmIntent; private Handler handler = new Handler(); private long firstRetryTimeStamp; PendingIntent activityRecognitionPendingIntent; GoogleApiClient googleApiClient; // --------------------------------------------------- @Override public IBinder onBind(Intent arg0) { return binder; } @Override public void onCreate() { nextPointAlarmManager = (AlarmManager) getSystemService(ALARM_SERVICE); RegisterEventBus(); } private void RequestActivityRecognitionUpdates() { GoogleApiClient.Builder builder = new GoogleApiClient.Builder(getApplicationContext()) .addApi(ActivityRecognition.API).addConnectionCallbacks(new GoogleApiClient.ConnectionCallbacks() { @Override public void onConnectionSuspended(int arg) { } @Override public void onConnected(Bundle arg0) { try { Log.d(TAG, "Requesting activity recognition updates"); Intent intent = new Intent(getApplicationContext(), GpsLoggingService.class); activityRecognitionPendingIntent = PendingIntent.getService(getApplicationContext(), 0, intent, PendingIntent.FLAG_UPDATE_CURRENT); ActivityRecognition.ActivityRecognitionApi.requestActivityUpdates(googleApiClient, AppSettings.getMinimumSeconds() * 1000, activityRecognitionPendingIntent); } catch (Throwable t) { Log.w(TAG, "Can't connect to activity recognition service", t); } } }).addOnConnectionFailedListener(new GoogleApiClient.OnConnectionFailedListener() { @Override public void onConnectionFailed(ConnectionResult arg0) { } }); googleApiClient = builder.build(); googleApiClient.connect(); } private void StopActivityRecognitionUpdates() { try { Log.d(TAG, "Stopping activity recognition updates"); if (googleApiClient != null && googleApiClient.isConnected()) { ActivityRecognition.ActivityRecognitionApi.removeActivityUpdates(googleApiClient, activityRecognitionPendingIntent); googleApiClient.disconnect(); } } catch (Throwable t) { Log.w(TAG, "Tried to stop activity recognition updates", t); } } private void RegisterEventBus() { EventBus.getDefault().registerSticky(this); } private void UnregisterEventBus() { try { EventBus.getDefault().unregister(this); } catch (Throwable t) { //this may crash if registration did not go through. just be safe } } @Override public int onStartCommand(Intent intent, int flags, int startId) { HandleIntent(intent); return START_REDELIVER_INTENT; } @Override public void onDestroy() { Log.w(TAG, "GpsLoggingService is being destroyed by Android OS."); UnregisterEventBus(); //RemoveNotification(); super.onDestroy(); } @Override public void onLowMemory() { Log.e(TAG, "Android is low on memory!"); super.onLowMemory(); } private void HandleIntent(Intent intent) { GetPreferences(); ActivityRecognitionResult arr = ActivityRecognitionResult.extractResult(intent); if (arr != null) { EventBus.getDefault().post(new ServiceEvents.ActivityRecognitionEvent(arr)); return; } if (intent != null) { Bundle bundle = intent.getExtras(); if (bundle != null) { boolean needToStartGpsManager = false; if (bundle.getBoolean(IntentConstants.IMMEDIATE_START)) { Log.i(TAG, "Intent received - Start Logging Now"); EventBus.getDefault().postSticky(new CommandEvents.RequestStartStop(true)); } if (bundle.getBoolean(IntentConstants.IMMEDIATE_STOP)) { Log.i(TAG, "Intent received - Stop logging now"); EventBus.getDefault().postSticky(new CommandEvents.RequestStartStop(false)); } if (bundle.getBoolean(IntentConstants.AUTOSEND_NOW)) { Log.i(TAG, "Intent received - Send Email Now"); EventBus.getDefault().postSticky(new CommandEvents.AutoSend(null)); } if (bundle.getBoolean(IntentConstants.GET_NEXT_POINT)) { Log.i(TAG, "Intent received - Get Next Point"); needToStartGpsManager = true; } if (bundle.getString(IntentConstants.SET_DESCRIPTION) != null) { Log.i(TAG, "Intent received - Set Next Point Description: " + bundle.getString(IntentConstants.SET_DESCRIPTION)); EventBus.getDefault() .post(new CommandEvents.Annotate(bundle.getString(IntentConstants.SET_DESCRIPTION))); } SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext()); if (bundle.get(IntentConstants.PREFER_CELLTOWER) != null) { boolean preferCellTower = bundle.getBoolean(IntentConstants.PREFER_CELLTOWER); Log.d(TAG, "Intent received - Set Prefer Cell Tower: " + String.valueOf(preferCellTower)); List<String> listeners = Utilities.GetListeners(); if (preferCellTower) { listeners.remove(listeners.indexOf("gps")); } else { listeners.remove(listeners.indexOf("network")); listeners.remove(listeners.indexOf("passive")); } Set<String> listenersSet = new HashSet<String>(listeners); prefs.edit().putStringSet("listeners", listenersSet).apply(); needToStartGpsManager = true; } if (bundle.get(IntentConstants.TIME_BEFORE_LOGGING) != null) { int timeBeforeLogging = bundle.getInt(IntentConstants.TIME_BEFORE_LOGGING); Log.d(TAG, "Intent received - Set Time Before Logging: " + String.valueOf(timeBeforeLogging)); prefs.edit().putString("time_before_logging", String.valueOf(timeBeforeLogging)).apply(); needToStartGpsManager = true; } if (bundle.get(IntentConstants.DISTANCE_BEFORE_LOGGING) != null) { int distanceBeforeLogging = bundle.getInt(IntentConstants.DISTANCE_BEFORE_LOGGING); Log.d(TAG, "Intent received - Set Distance Before Logging: " + String.valueOf(distanceBeforeLogging)); prefs.edit().putString("distance_before_logging", String.valueOf(distanceBeforeLogging)) .apply(); needToStartGpsManager = true; } if (bundle.get(IntentConstants.GPS_ON_BETWEEN_FIX) != null) { boolean keepBetweenFix = bundle.getBoolean(IntentConstants.GPS_ON_BETWEEN_FIX); Log.d(TAG, "Intent received - Set Keep Between Fix: " + String.valueOf(keepBetweenFix)); prefs.edit().putBoolean("keep_fix", keepBetweenFix).apply(); needToStartGpsManager = true; } if (bundle.get(IntentConstants.RETRY_TIME) != null) { int retryTime = bundle.getInt(IntentConstants.RETRY_TIME); Log.d(TAG, "Intent received - Set Retry Time: " + String.valueOf(retryTime)); prefs.edit().putString("retry_time", String.valueOf(retryTime)).apply(); needToStartGpsManager = true; } if (bundle.get(IntentConstants.ABSOLUTE_TIMEOUT) != null) { int absolumeTimeOut = bundle.getInt(IntentConstants.ABSOLUTE_TIMEOUT); Log.d(TAG, "Intent received - Set Retry Time: " + String.valueOf(absolumeTimeOut)); prefs.edit().putString("absolute_timeout", String.valueOf(absolumeTimeOut)).apply(); needToStartGpsManager = true; } if (bundle.get(IntentConstants.LOG_ONCE) != null) { boolean logOnceIntent = bundle.getBoolean(IntentConstants.LOG_ONCE); Log.d(TAG, "Intent received - Log Once: " + String.valueOf(logOnceIntent)); needToStartGpsManager = false; //LogOnce(); } try { if (bundle.get(Intent.EXTRA_ALARM_COUNT) != "0") { needToStartGpsManager = true; } } catch (Throwable t) { Log.w(TAG, "Received a weird EXTRA_ALARM_COUNT value. Cannot continue."); needToStartGpsManager = false; } if (needToStartGpsManager && Session.isStarted()) { StartGpsManager(); } } } else { // A null intent is passed in if the service has been killed and restarted. Log.d(TAG, "Service restarted with null intent. Start logging."); StartLogging(); } } private void CancelAlarm() { if (alarmIntent != null) { AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE); PendingIntent sender = PendingIntent.getBroadcast(this, 0, alarmIntent, PendingIntent.FLAG_UPDATE_CURRENT); am.cancel(sender); } } /** * Gets preferences chosen by the user and populates the AppSettings object. * Also sets up email timers if required. */ private void GetPreferences() { Utilities.PopulateAppSettings(getApplicationContext()); } /** * Resets the form, resets file name if required, reobtains preferences */ protected void StartLogging() { Log.d(TAG, "."); if (Session.isStarted()) { Log.d(TAG, "Session already started, ignoring"); return; } try { startForeground(NOTIFICATION_ID, new Notification()); } catch (Exception ex) { Log.e(TAG, "Could not start GPSLoggingService in foreground. ", ex); } Session.setStarted(true); GetPreferences(); //ShowNotification(); NotifyClientStarted(); //StartPassiveManager(); StartGpsManager(); RequestActivityRecognitionUpdates(); } /** * Asks the main service client to clear its form. */ private void NotifyClientStarted() { Log.i(TAG, getString(R.string.started)); EventBus.getDefault().post(new ServiceEvents.LoggingStatus(true)); } /** * Stops logging, removes notification, stops GPS manager, stops email timer */ public void StopLogging() { Log.d(TAG, "."); Session.setTotalTravelled(0); Session.setPreviousLocationInfo(null); Session.setStarted(false); Session.setUserStillSinceTimeStamp(0); Session.setLatestTimeStamp(0); stopAbsoluteTimer(); CancelAlarm(); Session.setCurrentLocationInfo(null); stopForeground(true); //RemoveNotification(); StopAlarm(); StopGpsManager(); //StopPassiveManager(); StopActivityRecognitionUpdates(); NotifyClientStopped(); } /** * Starts the location manager. There are two location managers - GPS and * Cell Tower. This code determines which manager to request updates from * based on user preference and whichever is enabled. If GPS is enabled on * the phone, that is used. But if the user has also specified that they * prefer cell towers, then cell towers are used. If neither is enabled, * then nothing is requested. */ private void StartGpsManager() { GetPreferences(); //If the user has been still for more than the minimum seconds if (userHasBeenStillForTooLong()) { Log.i(TAG, "No movement detected in the past interval, will not log"); SetAlarmForNextPoint(); return; } if (gpsLocationListener == null) { gpsLocationListener = new GeneralLocationListener(this, "GPS"); } if (towerLocationListener == null) { towerLocationListener = new GeneralLocationListener(this, "CELL"); } gpsLocationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); towerLocationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); CheckTowerAndGpsStatus(); if (Session.isGpsEnabled() && AppSettings.getChosenListeners().contains("gps")) { Log.i(TAG, "Requesting GPS location updates"); // gps satellite based gpsLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 0, gpsLocationListener); gpsLocationManager.addGpsStatusListener(gpsLocationListener); Session.setUsingGps(true); startAbsoluteTimer(); } if (Session.isTowerEnabled() && (AppSettings.getChosenListeners().contains("network") || !Session.isGpsEnabled())) { Log.i(TAG, "Requesting cell and wifi location updates"); Session.setUsingGps(false); // Cell tower and wifi based towerLocationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 1000, 0, towerLocationListener); startAbsoluteTimer(); } if (!Session.isTowerEnabled() && !Session.isGpsEnabled()) { Log.e(TAG, "No provider available!"); Session.setUsingGps(false); Log.e(TAG, getString(R.string.gpsprovider_unavailable)); StopLogging(); SetLocationServiceUnavailable(); return; } EventBus.getDefault().post(new ServiceEvents.WaitingForLocation(true)); Session.setWaitingForLocation(true); } private boolean userHasBeenStillForTooLong() { return (Session.getUserStillSinceTimeStamp() > 0 && (System.currentTimeMillis() - Session.getUserStillSinceTimeStamp()) > (AppSettings.getMinimumSeconds() * 1000)); } private void startAbsoluteTimer() { if (AppSettings.getAbsoluteTimeout() >= 1) { handler.postDelayed(stopManagerRunnable, AppSettings.getAbsoluteTimeout() * 1000); } } private Runnable stopManagerRunnable = new Runnable() { @Override public void run() { Log.w(TAG, "Absolute timeout reached, giving up on this point"); StopManagerAndResetAlarm(); } }; private void stopAbsoluteTimer() { handler.removeCallbacks(stopManagerRunnable); } /** * This method is called periodically to determine whether the cell tower / * gps providers have been enabled, and sets class level variables to those * values. */ private void CheckTowerAndGpsStatus() { Session.setTowerEnabled(towerLocationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER)); Session.setGpsEnabled(gpsLocationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)); } /** * Stops the location managers */ private void StopGpsManager() { if (towerLocationListener != null) { Log.d(TAG, "Removing towerLocationManager updates"); towerLocationManager.removeUpdates(towerLocationListener); } if (gpsLocationListener != null) { Log.d(TAG, "Removing gpsLocationManager updates"); gpsLocationManager.removeUpdates(gpsLocationListener); gpsLocationManager.removeGpsStatusListener(gpsLocationListener); } Session.setWaitingForLocation(false); EventBus.getDefault().post(new ServiceEvents.WaitingForLocation(false)); } // private void StopPassiveManager(){ // if(passiveLocationManager!=null){ // Log.d(TAG, "Removing passiveLocationManager updates"); // passiveLocationManager.removeUpdates(passiveLocationListener); // } // } void SetLocationServiceUnavailable() { EventBus.getDefault().post(new ServiceEvents.LocationServicesUnavailable()); } /** * Notifies main form that logging has stopped */ void NotifyClientStopped() { Log.i(TAG, getString(R.string.stopped)); EventBus.getDefault().post(new ServiceEvents.LoggingStatus(false)); } /** * Stops location manager, then starts it. */ void RestartGpsManagers() { Log.d(TAG, "Restarting location managers"); StopGpsManager(); StartGpsManager(); } /** * This event is raised when the GeneralLocationListener has a new location. * This method in turn updates notification, writes to file, reobtains * preferences, notifies main service client and resets location managers. * * @param loc Location object */ void OnLocationChanged(Location loc) { if (!Session.isStarted()) { Log.d(TAG, "OnLocationChanged called, but Session.isStarted is false"); StopLogging(); return; } long currentTimeStamp = System.currentTimeMillis(); //Log.d(TAG, "Has description? " + Session.hasDescription() + ", Last timestamp: " + Session.getLatestTimeStamp()); // Don't log a point until the user-defined time has elapsed // However, if user has set an annotation, just log the point, disregard any filters if ((currentTimeStamp - Session.getLatestTimeStamp()) < (AppSettings.getMinimumSeconds() * 1000)) { return; } //Don't log a point if user has been still // However, if user has set an annotation, just log the point, disregard any filters if (userHasBeenStillForTooLong()) { Log.i(TAG, "Received location but the user hasn't moved, ignoring"); return; } if (!isFromValidListener(loc)) { return; } boolean isPassiveLocation = loc.getExtras().getBoolean("PASSIVE"); // Don't do anything until the user-defined accuracy is reached // However, if user has set an annotation, just log the point, disregard any filters if (AppSettings.getMinimumAccuracyInMeters() > 0) { //Don't apply the retry interval to passive locations if (!isPassiveLocation && AppSettings.getMinimumAccuracyInMeters() < Math.abs(loc.getAccuracy())) { if (this.firstRetryTimeStamp == 0) { this.firstRetryTimeStamp = System.currentTimeMillis(); } if (currentTimeStamp - this.firstRetryTimeStamp <= AppSettings.getRetryInterval() * 1000) { Log.w(TAG, "Only accuracy of " + String.valueOf(Math.floor(loc.getAccuracy())) + " m. Point discarded." + getString(R.string.inaccurate_point_discarded)); //return and keep trying return; } if (currentTimeStamp - this.firstRetryTimeStamp > AppSettings.getRetryInterval() * 1000) { Log.w(TAG, "Only accuracy of " + String.valueOf(Math.floor(loc.getAccuracy())) + " m and timeout reached." + getString(R.string.inaccurate_point_discarded)); //Give up for now StopManagerAndResetAlarm(); //reset timestamp for next time. this.firstRetryTimeStamp = 0; return; } //Success, reset timestamp for next time. this.firstRetryTimeStamp = 0; } } //Don't do anything until the user-defined distance has been traversed // However, if user has set an annotation, just log the point, disregard any filters if (AppSettings.getMinimumDistanceInMeters() > 0 && Session.hasValidLocation()) { double distanceTraveled = Utilities.CalculateDistance(loc.getLatitude(), loc.getLongitude(), Session.getCurrentLatitude(), Session.getCurrentLongitude()); if (AppSettings.getMinimumDistanceInMeters() > distanceTraveled) { Log.w(TAG, String.format(getString(R.string.not_enough_distance_traveled), String.valueOf(Math.floor(distanceTraveled))) + ", point discarded"); StopManagerAndResetAlarm(); return; } } Log.i(TAG, String.valueOf(loc.getLatitude()) + "," + String.valueOf(loc.getLongitude())); AdjustAltitude(loc); Session.setLatestTimeStamp(System.currentTimeMillis()); Session.setCurrentLocationInfo(loc); SetDistanceTraveled(loc); //ShowNotification(); if (isPassiveLocation) { Log.d(TAG, "Logging passive location to file"); } WriteToFile(loc); GetPreferences(); StopManagerAndResetAlarm(); EventBus.getDefault().post(new ServiceEvents.LocationUpdate(loc)); } private void AdjustAltitude(Location loc) { if (!loc.hasAltitude()) { return; } if (AppSettings.shouldAdjustAltitudeFromGeoIdHeight() && loc.getExtras() != null) { String geoidheight = loc.getExtras().getString("GEOIDHEIGHT"); if (!Utilities.IsNullOrEmpty(geoidheight)) { loc.setAltitude((float) loc.getAltitude() - Float.valueOf(geoidheight)); } } loc.setAltitude(loc.getAltitude() - AppSettings.getSubtractAltitudeOffset()); } private boolean isFromValidListener(Location loc) { if (!AppSettings.getChosenListeners().contains("gps") && !AppSettings.getChosenListeners().contains("network")) { return true; } if (!AppSettings.getChosenListeners().contains("network")) { return loc.getProvider().equalsIgnoreCase("gps"); } if (!AppSettings.getChosenListeners().contains("gps")) { return !loc.getProvider().equalsIgnoreCase("gps"); } return true; } private void SetDistanceTraveled(Location loc) { // Distance if (Session.getPreviousLocationInfo() == null) { Session.setPreviousLocationInfo(loc); } // Calculate this location and the previous location location and add to the current running total distance. // NOTE: Should be used in conjunction with 'distance required before logging' for more realistic values. double distance = Utilities.CalculateDistance(Session.getPreviousLatitude(), Session.getPreviousLongitude(), loc.getLatitude(), loc.getLongitude()); Session.setPreviousLocationInfo(loc); Session.setTotalTravelled(Session.getTotalTravelled() + distance); } protected void StopManagerAndResetAlarm() { stopAbsoluteTimer(); SetAlarmForNextPoint(); } private void StopAlarm() { Intent i = new Intent(this, GpsLoggingService.class); i.putExtra(IntentConstants.GET_NEXT_POINT, true); PendingIntent pi = PendingIntent.getService(this, 0, i, 0); nextPointAlarmManager.cancel(pi); } private void SetAlarmForNextPoint() { Log.d(TAG, "Set alarm for " + AppSettings.getMinimumSeconds() + " seconds"); Intent i = new Intent(this, GpsLoggingService.class); i.putExtra(IntentConstants.GET_NEXT_POINT, true); PendingIntent pi = PendingIntent.getService(this, 0, i, 0); nextPointAlarmManager.cancel(pi); nextPointAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, SystemClock.elapsedRealtime() + AppSettings.getMinimumSeconds() * 1000, pi); } /** * Calls file helper to write a given location to a file. * * @param loc Location object */ private void WriteToFile(Location loc) { try { FileLoggerFactory.Write(getApplicationContext(), loc); } catch (Exception e) { Log.e(TAG, getString(R.string.could_not_write_to_file), e); } EventBus.getDefault().post(new ServiceEvents.AnnotationStatus(true)); } /** * Informs the main service client of the number of visible satellites. * * @param count Number of Satellites */ void SetSatelliteInfo(int count) { Session.setSatelliteCount(count); EventBus.getDefault().post(new ServiceEvents.SatelliteCount(count)); } /** * Can be used from calling classes as the go-between for methods and * properties. */ public class GpsLoggingBinder extends Binder { public GpsLoggingService getService() { return GpsLoggingService.this; } } @EventBusHook public void onEvent(CommandEvents.RequestToggle requestToggle) { if (Session.isStarted()) { StopLogging(); } else { StartLogging(); } } @EventBusHook public void onEvent(CommandEvents.RequestStartStop startStop) { if (startStop.start) { StartLogging(); } else { StopLogging(); } EventBus.getDefault().removeStickyEvent(CommandEvents.RequestStartStop.class); } @EventBusHook public void onEvent(CommandEvents.AutoSend autoSend) { //AutoSendLogFile(autoSend.formattedFileName); EventBus.getDefault().removeStickyEvent(CommandEvents.AutoSend.class); } @EventBusHook public void onEvent(CommandEvents.Annotate annotate) { final String desc = Utilities.CleanDescription(annotate.annotation); if (desc.length() == 0) { Log.d(TAG, "Clearing annotation"); } else { Log.d(TAG, "Pending annotation: " + desc); EventBus.getDefault().post(new ServiceEvents.AnnotationStatus(false)); if (Session.isStarted()) { StartGpsManager(); } else { //LogOnce(); } } EventBus.getDefault().removeStickyEvent(CommandEvents.Annotate.class); } @EventBusHook public void onEvent(CommandEvents.LogOnce logOnce) { // LogOnce(); } @EventBusHook public void onEvent(ServiceEvents.ActivityRecognitionEvent activityRecognitionEvent) { if (!AppSettings.shouldNotLogIfUserIsStill()) { Session.setUserStillSinceTimeStamp(0); return; } if (activityRecognitionEvent.result.getMostProbableActivity().getType() == DetectedActivity.STILL) { Log.d(TAG, activityRecognitionEvent.result.getMostProbableActivity().toString()); if (Session.getUserStillSinceTimeStamp() == 0) { Log.d(TAG, "Just entered still state, attempt to log"); StartGpsManager(); Session.setUserStillSinceTimeStamp(System.currentTimeMillis()); } } else { Log.d(TAG, activityRecognitionEvent.result.getMostProbableActivity().toString()); //Reset the still-since timestamp Session.setUserStillSinceTimeStamp(0); Log.d(TAG, "Just exited still state, attempt to log"); StartGpsManager(); } } }