Develop Reference

Is it possible to have background location updates survive a phone reboot?

Background location update using Google Play Services...
Successfully have location updates every 5 minutes in the background.
But, perhaps not surprisingly, if the device is rebooted then the updates stop.
Is it possible to have background location updates survive a phone reboot... and if so, how?
Here is present code in case that helps:
import android.os.Bundle;
import java.util.ArrayList;
public class GPSTracker extends Service implements
GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, com.google.android.gms.location.LocationListener {
protected static final String TAG = "Location...";
private Context mContext = this;
/**
* Tracks the status of the location updates request.
*/
public static Boolean mRequestingLocationUpdates;
/**
* Time when the location was updated represented as a String.
*/
protected String mLastUpdateTime;
/**
* Provides the entry point to Google Play services.
*/
protected GoogleApiClient mGoogleApiClient;
/**
* Stores parameters for requests to the FusedLocationProviderApi.
*/
protected LocationRequest mLocationRequest;
/**
* Represents a geographical location.
*/
protected Location mCurrentLocation;
public static boolean isEnded = false;
#Override
public void onCreate() {
super.onCreate();
buildGoogleApiClient();
}
#Nullable
#Override
public IBinder onBind(Intent intent) {
return null;
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.d("LOC", "Service init...");
isEnded = false;
mRequestingLocationUpdates = false;
mLastUpdateTime = "";
// buildGoogleApiClient();
if (mGoogleApiClient.isConnected() && mRequestingLocationUpdates) {
startLocationUpdates();
}
return START_STICKY;
}
#Override
public void onConnected(Bundle bundle) {
startLocationUpdates();
}
#Override
public void onConnectionSuspended(int i) {
// The connection to Google Play services was lost for some reason. We call connect() to
// attempt to re-establish the connection.
Log.i(TAG, "Connection suspended==");
mGoogleApiClient.connect();
}
#Override
public void onLocationChanged(Location location) {
mCurrentLocation = location;
mLastUpdateTime = DateFormat.getTimeInstance().format(new Date());
double latitude = location.getLatitude();
double longitude = location.getLongitude();
StringBuilder stringBuilder = new StringBuilder();
StringBuilder latlong = stringBuilder.append(latitude + "," + longitude);
Calendar cal = Calendar.getInstance();
String zone = TimeZone.getDefault().getDisplayName(false, android.icu.util.TimeZone.SHORT);
SimpleDateFormat formatter = new SimpleDateFormat("dd-MMM 'at' h:mm a");
Date date = new Date();
String localtime = (formatter.format(date)).toString();
Date myDate = new Date();
Calendar calendar = Calendar.getInstance();
calendar.setTimeZone(TimeZone.getTimeZone("UTC"));
calendar.setTime(myDate);
date = calendar.getTime();
SimpleDateFormat dateFormatter = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss zz");
dateFormatter.setTimeZone(TimeZone.getTimeZone("UTC"));
String utc = dateFormatter.format(date);
// DateFormat df = DateFormat.getTimeInstance();
// df.setTimeZone(TimeZone.getTimeZone("gmt"));
// String gmtTime = df.format(new Date());
String model = Build.MODEL;
String reqString = Build.VERSION.RELEASE
+ " " + Build.VERSION_CODES.class.getFields()[android.os.Build.VERSION.SDK_INT].getName();
// Date currentTime = Calendar.getInstance().getTime();
// String localtime = currentTime.toString();
PreferencesClass preferencesClass = new PreferencesClass(mContext);
String id = preferencesClass.getFingerPrint();
Data data = null;
try {
JSONObject jsonObject = new JSONObject();
jsonObject.put("userId", id);
jsonObject.put("latLon", latlong);
jsonObject.put("timeZone", zone);
jsonObject.put("localTime", localtime);
jsonObject.put("osVersion", reqString);
jsonObject.put("phoneModel", model);
jsonObject.put("utcTime", utc);
data = new Data();
data.setData(jsonObject.toString());
if (data != null) {
if (Utility.isConnectingToInternet(mContext)) {
// boolean isChecked = preferencesClass.getIsChecked();
// if (isChecked){
LocationWebServiceMgr locationWebServiceMgr = new LocationWebServiceMgr();
locationWebServiceMgr.Location(data, new CallBackInterface() {
#Override
public void onResponse(ArrayList<Object> objects, ResponseMetaData responseMetaData) {
Log.d(TAG, "onResponse: Succesfully added the location to server");
// Toast.makeText(getApplicationContext(), "added to server", Toast.LENGTH_LONG).show();
}
#Override
public void onFailure(ResponseMetaData t) {
}
});
// } else {
// Log.d("serverCall", "Location Permission not available ");
// }
} else {
Log.e("serverCall", "Network not available");
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
#Override
public void onConnectionFailed(ConnectionResult connectionResult) {
// Refer to the javadoc for ConnectionResult to see what error codes might be returned in
// onConnectionFailed.
Log.i(TAG, "Connection failed: ConnectionResult.getErrorCode() = " + connectionResult.getErrorCode());
}
/**
* Builds a GoogleApiClient. Uses the {#code #addApi} method to request the
* LocationServices API.
*/
protected synchronized void buildGoogleApiClient() {
Log.i(TAG, "Building GoogleApiClient===");
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
createLocationRequest();
}
/**
* Sets up the location request. Android has two location request settings:
* {#code ACCESS_COARSE_LOCATION} and {#code ACCESS_FINE_LOCATION}. These settings control
* the accuracy of the current location. This sample uses ACCESS_FINE_LOCATION, as defined in
* the AndroidManifest.xml.
* <p/>
* When the ACCESS_FINE_LOCATION setting is specified, combined with a fast update
* interval (5 seconds), the Fused Location Provider API returns location updates that are
* accurate to within a few feet.
* <p/>
* These settings are appropriate for mapping applications that show real-time location
* updates.
*/
protected void createLocationRequest() {
mGoogleApiClient.connect();
mLocationRequest = new LocationRequest();
// Sets the desired interval for active location updates. This interval is
// inexact. You may not receive updates at all if no location sources are available, or
// you may receive them slower than requested. You may also receive updates faster than
// requested if other applications are requesting location at a faster interval.
mLocationRequest.setInterval(Constants.UPDATE_INTERVAL_IN_MILLISECONDS);
// Sets the fastest rate for active location updates. This interval is exact, and your
// application will never receive updates faster than this value.
mLocationRequest.setFastestInterval(Constants.FASTEST_UPDATE_INTERVAL_IN_MILLISECONDS);
// mLocationRequest.setSmallestDisplacement(Constants.DISPLACEMENT);
//mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
}
/**
* Requests location updates from the FusedLocationApi.
*/
protected void startLocationUpdates() {
if (!mRequestingLocationUpdates) {
mRequestingLocationUpdates = true;
// The final argument to {#code requestLocationUpdates()} is a LocationListener
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return;
}
LocationServices.FusedLocationApi.requestLocationUpdates(
mGoogleApiClient, mLocationRequest, this);
Log.i(TAG, " startLocationUpdates===");
isEnded = true;
}
}
}

I handled like below it's will helpful for you
RestartReceiver:
public class RestartReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
try {
//started service for update the location of userx
LocationsUpdateRequest.createLocationRequest(context);
//updated in my preference because I need to send data to server if user signed in app only
} catch (Exception e) {
LogUtils.crashlytics(e);
}
}
}
ShutdownReceiver:
public class ShutdownReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
try {
//stop the service when phone is shotdown
LocationsUpdateRequest.getPendingIntent(context).cancel();
//reset flag in preference
} catch (Exception e) {
}
}
}
Manifest:
<receiver android:name=".services.ShutdownReceiver">
<intent-filter>
<action android:name="android.intent.action.ACTION_SHUTDOWN" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.QUICKBOOT_POWEROFF" />
</intent-filter>
</receiver>
<receiver android:name=".services.RestartReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>

GoogleApiClient: hide GPS icon on status bar when a service is in the background

I'm using GoogleApiClient to implement a location listener service, but the GPS icon is always being displayed, even with the service in background. How to disable the GPS icon when the service is in the background?
Follow the sources below:
Activity
public class ShowDistanceActivity extends AppCompatActivity implements ILocationConstants {
protected static final String TAG = ShowDistanceActivity.class.getSimpleName();
#Bind(R.id.tvLocationData)
TextView tvLocationData;
#Bind(R.id.toolbar)
Toolbar toolbar;
/**
* Receiver listening to Location updates and updating UI in activity
*/
private LocationReceiver locationReceiver;
/**
* Permission util with callback mechanism to avoid boilerplate code
* <p/>
* https://github.com/kayvannj/PermissionUtil
*/
private PermissionUtil.PermissionRequestObject mBothPermissionRequest;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_show_distance);
ButterKnife.bind(this);
setSupportActionBar(toolbar);
locationReceiver = new LocationReceiver();
}
private void startLocationService() {
Intent serviceIntent = new Intent(this, LocationService.class);
startService(serviceIntent);
}
#Override
protected void onStart() {
super.onStart();
LocalBroadcastManager.getInstance(this).registerReceiver(locationReceiver, new IntentFilter(LOACTION_ACTION));
/**
* Runtime permissions are required on Android M and above to access User's location
*/
if (AppUtils.hasM() && !(ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED
&& ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED)) {
askPermissions();
} else {
startLocationService();
}
}
/**
* Ask user for permissions to access GPS location on Android M
*/
public void askPermissions() {
mBothPermissionRequest =
PermissionUtil.with(this).request(Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_FINE_LOCATION).onResult(
new Func2() {
#Override
protected void call(int requestCode, String[] permissions, int[] grantResults) {
if (grantResults[0] == PackageManager.PERMISSION_GRANTED && grantResults[1] == PackageManager.PERMISSION_GRANTED) {
startLocationService();
} else {
Toast.makeText(ShowDistanceActivity.this, R.string.permission_denied, Toast.LENGTH_LONG).show();
}
}
}).ask(PERMISSION_ACCESS_LOCATION_CODE);
}
#Override
protected void onStop() {
super.onStop();
LocalBroadcastManager.getInstance(this).unregisterReceiver(locationReceiver);
}
private class LocationReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
if (null != intent && intent.getAction().equals(LOACTION_ACTION)) {
String locationData = intent.getStringExtra(LOCATION_MESSAGE);
tvLocationData.setText(locationData);
}
}
}
#Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
if (null != mBothPermissionRequest) {
mBothPermissionRequest.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
}
Service
public class LocationService extends Service implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, LocationListener, ILocationConstants, IPreferenceConstants {
private static final String TAG = LocationService.class.getSimpleName();
/**
* Provides the entry point to Google Play services.
*/
protected GoogleApiClient mGoogleApiClient;
/**
* Stores parameters for requests to the FusedLocationProviderApi.
*/
protected LocationRequest mLocationRequest;
/**
* Represents a geographical location.
*/
protected Location mCurrentLocation;
private String mLatitudeLabel;
private String mLongitudeLabel;
private String mLastUpdateTimeLabel;
private String mDistance;
/**
* Time when the location was updated represented as a String.
*/
protected String mLastUpdateTime;
private Location oldLocation;
private Location newLocation;
private AppPreferences appPreferences;
/**
* Total distance covered
*/
private float distance;
#Override
public void onCreate() {
super.onCreate();
Log.d(TAG, "onCreate() called");
appPreferences = new AppPreferences(this);
oldLocation = new Location("Point A");
newLocation = new Location("Point B");
mLatitudeLabel = getString(R.string.latitude_label);
mLongitudeLabel = getString(R.string.longitude_label);
mLastUpdateTimeLabel = getString(R.string.last_update_time_label);
mDistance = getString(R.string.distance);
mLastUpdateTime = "";
distance = appPreferences.getFloat(PREF_DISTANCE, 0);
Log.d(TAG, "onCreate Distance: " + distance);
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.d(TAG, "onStartCommand called");
buildGoogleApiClient();
mGoogleApiClient.connect();
if (mGoogleApiClient.isConnected()) {
startLocationUpdates();
}
return Service.START_STICKY;
}
/**
* Builds a GoogleApiClient. Uses the {#code #addApi} method to request the
* LocationServices API.
*/
protected synchronized void buildGoogleApiClient() {
Log.d(TAG, "buildGoogleApiClient() called");
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
createLocationRequest();
}
protected void createLocationRequest() {
Log.d(TAG, "createLocationRequest() called");
mLocationRequest = new LocationRequest();
mLocationRequest.setInterval(UPDATE_INTERVAL_IN_MILLISECONDS);
mLocationRequest.setFastestInterval(FASTEST_UPDATE_INTERVAL_IN_MILLISECONDS);
mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
mLocationRequest.setSmallestDisplacement(DISPLACEMENT);
}
/**
* Requests location updates from the FusedLocationApi.
*/
protected void startLocationUpdates() {
try {
Log.d(TAG, "startLocationUpdates called");
LocationServices.FusedLocationApi.requestLocationUpdates(
mGoogleApiClient, mLocationRequest, this);
} catch (SecurityException ex) {
ex.printStackTrace();
}
}
/**
* Updates the latitude, the longitude, and the last location time in the UI.
*/
private void updateUI() {
if (null != mCurrentLocation) {
StringBuilder sbLocationData = new StringBuilder();
sbLocationData.append(mLatitudeLabel)
.append(" ")
.append(mCurrentLocation.getLatitude())
.append("\n")
.append(mLongitudeLabel)
.append(" ")
.append(mCurrentLocation.getLongitude())
.append("\n")
.append(mLastUpdateTimeLabel)
.append(" ")
.append(mLastUpdateTime)
.append("\n")
.append(mDistance)
.append(" ")
.append(getUpdatedDistance())
.append(" meters");
/*
* update preference with latest value of distance
*/
appPreferences.putFloat(PREF_DISTANCE, distance);
Log.d(TAG, "Location Data:\n" + sbLocationData.toString());
sendLocationBroadcast(sbLocationData.toString());
} else {
Toast.makeText(this, R.string.unable_to_find_location, Toast.LENGTH_SHORT).show();
}
}
/**
* Send broadcast using LocalBroadcastManager to update UI in activity
*
* #param sbLocationData
*/
private void sendLocationBroadcast(String sbLocationData) {
Log.d(TAG, "sendLocationBroadcast() called");
Intent locationIntent = new Intent();
locationIntent.setAction(LOACTION_ACTION);
locationIntent.putExtra(LOCATION_MESSAGE, sbLocationData);
LocalBroadcastManager.getInstance(this).sendBroadcast(locationIntent);
}
/**
* Removes location updates from the FusedLocationApi.
*/
protected void stopLocationUpdates() {
Log.d(TAG, "stopLocationUpdates() called");
LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
}
#Override
public void onDestroy() {
Log.d(TAG, "onDestroy() called");
appPreferences.putFloat(PREF_DISTANCE, distance);
stopLocationUpdates();
mGoogleApiClient.disconnect();
Log.d(TAG, "onDestroy Distance " + distance);
super.onDestroy();
}
/**
* Runs when a GoogleApiClient object successfully connects.
*/
#Override
public void onConnected(Bundle connectionHint) throws SecurityException {
Log.i(TAG, "Connected to GoogleApiClient");
if (mCurrentLocation == null) {
mCurrentLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
mLastUpdateTime = DateFormat.getTimeInstance().format(new Date());
updateUI();
}
startLocationUpdates();
}
/**
* Callback that fires when the location changes.
*/
#Override
public void onLocationChanged(Location location) {
Log.d(TAG, "onLocationChanged() called");
mCurrentLocation = location;
mLastUpdateTime = DateFormat.getTimeInstance().format(new Date());
updateUI();
}
#Override
public void onConnectionSuspended(int cause) {
Log.d(TAG, "onConnectionSuspended() called");
mGoogleApiClient.connect();
}
#Override
public void onConnectionFailed(ConnectionResult result) {
Log.i(TAG, "Connection failed: ConnectionResult.getErrorCode() = " + result.getErrorCode());
}
private float getUpdatedDistance() {
/**
* There is 68% chance that user is with in 100m from this location.
* So neglect location updates with poor accuracy
*/
if (mCurrentLocation.getAccuracy() > ACCURACY_THRESHOLD) {
Log.d(TAG, "getUpdatedDistance() called");
return distance;
}
if (oldLocation.getLatitude() == 0 && oldLocation.getLongitude() == 0) {
oldLocation.setLatitude(mCurrentLocation.getLatitude());
oldLocation.setLongitude(mCurrentLocation.getLongitude());
newLocation.setLatitude(mCurrentLocation.getLatitude());
newLocation.setLongitude(mCurrentLocation.getLongitude());
return distance;
} else {
oldLocation.setLatitude(newLocation.getLatitude());
oldLocation.setLongitude(newLocation.getLongitude());
newLocation.setLatitude(mCurrentLocation.getLatitude());
newLocation.setLongitude(mCurrentLocation.getLongitude());
}
/**
* Calculate distance between last two geo locations
*/
distance += newLocation.distanceTo(oldLocation);
return distance;
}
#Override
public IBinder onBind(Intent intent) {
throw new UnsupportedOperationException("Not yet implemented");
}
}
Manifest
Android Manifest declaration
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.technosavy.showmedistance">
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity
android:name=".ShowDistanceActivity"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service
android:name=".service.LocationService"
android:enabled="true"
android:exported="true"></service>
</application>
</manifest>
Please, any help is welcome.

To remove the GPS icon you need to use cached and wi-fi location settings (from memory). In your code make the following changes.
In Manifest, remove:
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
In Service, change the following:
mLocationRequest.setInterval(10000L);
mLocationRequest.setFastestInterval(5000L);
// Do NOT use LocationRequest.PRIORITY_HIGH_ACCURACY here
// Instead use one of the other option.
mLocationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
//mLocationRequest.setPriority(LocationRequest.PRIORITY_LOW_POWER);
//mLocationRequest.setPriority(LocationRequest.PRIORITY_NO_POWER);
// Remove setSmallestDisplacement() as it should not be used
// unless you are using a GPS / PRIORITY_HIGH_ACCURACY
//mLocationRequest.setSmallestDisplacement(DISPLACEMENT);
Pretty sure this is will remove the GPS icon but you will also only get the FusedLocationApi.getLastLocation() values when the onConnected() method is called (very possible this will be low accuracy).
The onLocationChanged() method may never trigger until another application makes a location request at a higher priority or with more accuracy.

The new fused location providers take a slightly different approach compared to previous methods. Developers now choose how much battery power is used to calculate a location instead of which device components are used to calculate it. It uses any available combination of GPS, Wi-Fi, mobile networks, and onboard sensors to calculate the location.
The LocationRequest priority settings are now:
PRIORITY_NO_POWER (passively listens for location updates from other clients)
PRIORITY_LOW_POWER (~10km "city" accuracy)
PRIORITY_BALANCED_POWER_ACCURACY (~100m "block" accuracy)
PRIORITY_HIGH_ACCURACY (accurate as possible at the expense of battery life)
Google describes the LocationRequest class here: http://developer.android.com/reference/com/google/android/gms/location/LocationRequest.html

How to solve geofence mock_location error?

so im running this sample app i got on github which deals with google maps and geo fences: https://github.com/androidfu/GeofenceExample
And when I run the code I get this error : Caused by: java.lang.SecurityException: com.androidfu.example.geofences from uid 10170 not allowed to perform MOCK_LOCATION
Here is the code for the class followed by the stack trace. Hope you guys can give me some insight. Also i have mock location in manifest. The error is coming from the onResume() method.
public class MapsActivity extends FragmentActivity implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, View.OnClickListener, ResultCallback<Status> {
public static final String TAG = MapsActivity.class.getSimpleName();
private static final long LOCATION_ITERATION_PAUSE_TIME = 1000;
private static final int NUMBER_OF_LOCATION_ITERATIONS = 10;
private GoogleMap googleMap; // Might be null if Google Play services APK is not available.
private MyPlaces happyPlace;
private MyPlaces home;
private List<Geofence> myFences = new ArrayList<>();
private GoogleApiClient googleApiClient;
private PendingIntent geofencePendingIntent;
private UpdateLocationRunnable updateLocationRunnable;
private LocationManager locationManager;
private int marker = 0;
private Location lastLocation;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
ImageButton happyPlaceBtn = (ImageButton) findViewById(R.id.ib_happy_place);
happyPlaceBtn.setOnClickListener(this);
ImageButton homeBtn = (ImageButton) findViewById(R.id.ib_home);
homeBtn.setOnClickListener(this);
ImageButton resetBtn = (ImageButton) findViewById(R.id.ib_reset);
resetBtn.setOnClickListener(this);
setUpMapIfNeeded();
}
/**
* Called when a view has been clicked.
*
* #param v The view that was clicked.
*/
#Override
public void onClick(View v) {
MyPlaces place;
switch (v.getId()) {
case R.id.ib_happy_place:
Toast.makeText(this, "You Clicked Happy Place", Toast.LENGTH_SHORT).show();
place = happyPlace;
moveToLocation(place);
break;
case R.id.ib_home:
Toast.makeText(this, "You Clicked Home", Toast.LENGTH_SHORT).show();
place = home;
moveToLocation(place);
break;
case R.id.ib_reset:
Toast.makeText(this, "Resetting Our Map", Toast.LENGTH_SHORT).show();
if (updateLocationRunnable != null) {
updateLocationRunnable.interrupt();
}
googleApiClient.disconnect();
googleMap.clear();
myFences.clear();
setUpMap();
break;
}
}
#Override
protected void onResume() {
super.onResume();
setUpMapIfNeeded();
this.getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
Log.i(TAG, "Setup MOCK Location Providers");
locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
Log.i(TAG, "GPS Provider");
locationManager.addTestProvider(LocationManager.GPS_PROVIDER, false, true, false, false, false, false, false, Criteria.POWER_HIGH, Criteria.ACCURACY_FINE);
locationManager.setTestProviderEnabled(LocationManager.GPS_PROVIDER, true);
Log.i(TAG, "Network Provider");
locationManager.addTestProvider(LocationManager.NETWORK_PROVIDER, true, false, true, false, false, false, false, Criteria.POWER_MEDIUM, Criteria.ACCURACY_FINE);
locationManager.setTestProviderEnabled(LocationManager.NETWORK_PROVIDER, true);
}
#Override
protected void onPause() {
this.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
// Interrupt our runnable if we're going into the background or exiting
if (updateLocationRunnable != null) {
updateLocationRunnable.interrupt();
}
Log.i(TAG, "Cleanup Our Fields");
locationManager.removeTestProvider(LocationManager.GPS_PROVIDER);
locationManager.removeTestProvider(LocationManager.NETWORK_PROVIDER);
locationManager = null;
updateLocationRunnable = null;
super.onPause();
}
#Override
protected void onStop() {
googleApiClient.disconnect();
super.onStop();
}
/**
* Sets up the map if it is possible to do so (i.e., the Google Play services APK is correctly
* installed) and the map has not already been instantiated.. This will ensure that we only ever
* call {#link #setUpMap()} once when {#link #googleMap} is not null.
* <p/>
* If it isn't installed {#link SupportMapFragment} (and
* {#link com.google.android.gms.maps.MapView MapView}) will show a prompt for the user to
* install/update the Google Play services APK on their device.
* <p/>
* A user can return to this FragmentActivity after following the prompt and correctly
* installing/updating/enabling the Google Play services. Since the FragmentActivity may not
* have been completely destroyed during this process (it is likely that it would only be
* stopped or paused), {#link #onCreate(Bundle)} may not be called again so we should call this
* method in {#link #onResume()} to guarantee that it will be called.
*/
private void setUpMapIfNeeded() {
// Do a null check to confirm that we have not already instantiated the map.
if (googleMap == null) {
// Try to obtain the map from the SupportMapFragment.
googleMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap();
// Check if we were successful in obtaining the map.
if (googleMap != null) {
setUpMap();
}
}
}
/**
* This is where we can add markers or lines, add listeners or move the camera.
* <p/>
* This should only be called once and when we are sure that {#link #googleMap} is not null.
*/
private void setUpMap() {
googleMap.setBuildingsEnabled(true);
// PRES 1
/*
1. Create a "Place" that will become a Geofence
2. Add a place marker on our Map
3. Add our place to our list of Geofences
4. Repeat for each place
*/
// Add a place with a Geofence
happyPlace = new MyPlaces("Pier # Folly Beach", "This is my Happy Place!", new LatLng(32.652411, -79.938063), 10000, 10, R.drawable.ic_palm_tree);
addPlaceMarker(happyPlace);
addFence(happyPlace);
// Add a place with a Geofence
// Work 39.3336585, -84.3146718
// Home 39.2697455, -84.269921
home = new MyPlaces("Home", "This is where I live.", new LatLng(39.3336585, -84.3146718), 10000, 10, R.drawable.ic_home);
addPlaceMarker(home);
addFence(home);
// Add a place w/o a Geofence
MyPlaces charleston = new MyPlaces("Charleston, SC", "This is where I want to live!", new LatLng(32.8210454, -79.9704779), 0, 10, R.drawable.ic_heart);
addPlaceMarker(charleston);
addFence(charleston);
/*
After all your places have been created and markers added you can monitor your fences.
*/
monitorFences(myFences);
googleMap.setOnMapClickListener(new GoogleMap.OnMapClickListener() {
#Override
public void onMapClick(LatLng latLng) {
if (updateLocationRunnable != null && updateLocationRunnable.isAlive() && !updateLocationRunnable.isInterrupted()) {
updateLocationRunnable.interrupt();
}
updateLocationRunnable = new UpdateLocationRunnable(locationManager, latLng);
updateLocationRunnable.start();
MyPlaces touchedPlace = new MyPlaces(String.format("Marker %1$d", ++marker), "", latLng, 65, 12, 0);
addPlaceMarker(touchedPlace);
}
});
}
/**
* Add a map marker at the place specified.
*
* #param place the place to take action on
*/
private void addPlaceMarker(MyPlaces place) {
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.position(place.getCoordinates())
.title(place.getTitle());
if (!TextUtils.isEmpty(place.getSnippet())) {
markerOptions.snippet(place.getSnippet());
}
if (place.getIconResourceId() > 0) {
markerOptions.icon(BitmapDescriptorFactory.fromResource(place.getIconResourceId()));
}
googleMap.addMarker(markerOptions);
drawGeofenceAroundTarget(place);
}
/**
* If our place has a fence radius greater than 0 then draw a circle around it.
*
* #param place the place to take action on
*/
private void drawGeofenceAroundTarget(MyPlaces place) {
if (place.getFenceRadius() <= 0) {
// Nothing to draw
return;
}
CircleOptions circleOptions = new CircleOptions();
circleOptions.center(place.getCoordinates());
circleOptions.fillColor(Color.argb(0x55, 0x00, 0x00, 0xff));
circleOptions.strokeColor(Color.argb(0xaa, 0x00, 0x00, 0xff));
circleOptions.radius(place.getFenceRadius());
googleMap.addCircle(circleOptions);
}
/**
* Update our map's location to the place specified.
*
* #param place the place to take action on
*/
private void moveToLocation(final MyPlaces place) {
// Move the camera instantly to "place" with a zoom of 5.
if (place.getTitle().equals("Charleston, SC")) {
googleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(place.getCoordinates(), place.getDefaultZoomLevel()));
}
// Fly to our new location and then set the correct zoom level for the given place.
googleMap.animateCamera(CameraUpdateFactory.newLatLng(place.getCoordinates()), new GoogleMap.CancelableCallback() {
#Override
public void onFinish() {
googleMap.animateCamera(CameraUpdateFactory.zoomTo(place.getDefaultZoomLevel()), 2000, null);
}
#Override
public void onCancel() {
// Nothing to see here.
}
});
}
/**
* If our place has a fence radius > 0 then add it to our monitored fences.
*
* #param place the place to take action on
*/
private void addFence(MyPlaces place) {
if (place.getFenceRadius() <= 0) {
// Nothing to monitor
return;
}
Geofence geofence = new Geofence.Builder()
.setCircularRegion(place.getCoordinates().latitude, place.getCoordinates().longitude, place.getFenceRadius())
.setRequestId(place.getTitle()) // every fence must have an ID
.setTransitionTypes(Geofence.GEOFENCE_TRANSITION_ENTER | Geofence.GEOFENCE_TRANSITION_EXIT) // can also have DWELL
.setExpirationDuration(Geofence.NEVER_EXPIRE) // how long do we care about this geofence?
//.setLoiteringDelay(60000) // 1 min.
.build();
myFences.add(geofence);
}
/**
* Connect our GoogleApiClient so we can begin monitoring our fences.
*
* #param fences our list of Geofences to monitor
*/
private void monitorFences(List<Geofence> fences) {
if (fences.isEmpty()) {
throw new RuntimeException("No fences to monitor. Call addPlaceMarker() First.");
}
// PRES 2
googleApiClient = new GoogleApiClient.Builder(this)
.addApi(LocationServices.API)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.build();
googleApiClient.connect();
}
#Override
public void onConnected(Bundle bundle) {
/*
TODO
1. Display a spinner in the progress bar while we're waiting for location
2. When connected & not null update map position to location
3. If location null try again once every 10 seconds until we get an answer or quit after x minutes
4. ?
*/
Toast.makeText(this, "GoogleApiClient Connected", Toast.LENGTH_SHORT).show();
lastLocation = LocationServices.FusedLocationApi.getLastLocation(googleApiClient);
String lastLocationMessage;
if (lastLocation == null) {
lastLocationMessage = "Last Location is NULL";
moveToLocation(home);
} else {
lastLocationMessage = String.format("Last Location (%1$s, %2$s)", lastLocation.getLatitude(), lastLocation.getLongitude());
moveToLocation(new MyPlaces("Last Location", "I am here.", new LatLng(lastLocation.getLatitude(), lastLocation.getLongitude()), 0, 13, 0));
}
Toast.makeText(this, lastLocationMessage, Toast.LENGTH_SHORT).show();
// PRES 3
geofencePendingIntent = getRequestPendingIntent();
PendingResult<Status> result = LocationServices.GeofencingApi.addGeofences(googleApiClient, myFences, geofencePendingIntent);
result.setResultCallback(this);
}
#Override
public void onConnectionSuspended(int i) {
Toast.makeText(this, "GoogleApiClient Connection Suspended", Toast.LENGTH_SHORT).show();
}
#Override
public void onConnectionFailed(ConnectionResult connectionResult) {
Toast.makeText(this, "GoogleApiClient Connection Failed", Toast.LENGTH_SHORT).show();
}
#Override
public void onResult(Status status) {
String toastMessage;
// PRES 4
if (status.isSuccess()) {
toastMessage = "Success: We Are Monitoring Our Fences";
} else {
toastMessage = "Error: We Are NOT Monitoring Our Fences";
}
Toast.makeText(this, toastMessage, Toast.LENGTH_SHORT).show();
}
/**
* Returns the current PendingIntent to the caller.
*
* #return The PendingIntent used to create the current set of geofences
*/
public PendingIntent getRequestPendingIntent() {
return createRequestPendingIntent();
}
/**
* Get a PendingIntent to send with the request to add Geofences. Location
* Services issues the Intent inside this PendingIntent whenever a geofence
* transition occurs for the current list of geofences.
*
* #return A PendingIntent for the IntentService that handles geofence
* transitions.
*/
private PendingIntent createRequestPendingIntent() {
if (geofencePendingIntent != null) {
return geofencePendingIntent;
} else {
Intent intent = new Intent(this, GeofenceTransitionReceiver.class);
intent.setAction("geofence_transition_action");
return PendingIntent.getBroadcast(this, R.id.geofence_transition_intent, intent, PendingIntent.FLAG_UPDATE_CURRENT);
}
}
// /////////////////////////////////////////////////////////////////////////////////////////
// // UpdateLocationRunnable //
// /////////////////////////////////////////////////////////////////////////////////////////
private Location createMockLocation(String locationProvider, double latitude, double longitude) {
Location location = new Location(locationProvider);
location.setLatitude(latitude);
location.setLongitude(longitude);
location.setAccuracy(1.0f);
location.setTime(System.currentTimeMillis());
/*
setElapsedRealtimeNanos() was added in API 17
*/
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
location.setElapsedRealtimeNanos(SystemClock.elapsedRealtimeNanos());
}
try {
Method locationJellyBeanFixMethod = Location.class.getMethod("makeComplete");
if (locationJellyBeanFixMethod != null) {
locationJellyBeanFixMethod.invoke(location);
}
} catch (Exception e) {
// There's no action to take here. This is a fix for Jelly Bean and no reason to report a failure.
}
return location;
}
// /////////////////////////////////////////////////////////////////////////////////////////
// // CreateMockLocation //
// /////////////////////////////////////////////////////////////////////////////////////////
class UpdateLocationRunnable extends Thread {
private final LocationManager locMgr;
private final LatLng latlng;
Location mockGpsLocation;
Location mockNetworkLocation;
UpdateLocationRunnable(LocationManager locMgr, LatLng latlng) {
this.locMgr = locMgr;
this.latlng = latlng;
}
/**
* Starts executing the active part of the class' code. This method is
* called when a thread is started that has been created with a class which
* implements {#code Runnable}.
*/
#Override
public void run() {
try {
Log.i(TAG, String.format("Setting Mock Location to: %1$s, %2$s", latlng.latitude, latlng.longitude));
/*
Location can be finicky. Iterate over our desired location every second for
NUMBER_OF_LOCATION_ITERATIONS seconds to help it figure out where we want it to
be.
*/
for (int i = 0; !isInterrupted() && i <= NUMBER_OF_LOCATION_ITERATIONS; i++) {
mockGpsLocation = createMockLocation(LocationManager.GPS_PROVIDER, latlng.latitude, latlng.longitude);
locMgr.setTestProviderLocation(LocationManager.GPS_PROVIDER, mockGpsLocation);
mockNetworkLocation = createMockLocation(LocationManager.NETWORK_PROVIDER, latlng.latitude, latlng.longitude);
locMgr.setTestProviderLocation(LocationManager.NETWORK_PROVIDER, mockNetworkLocation);
Thread.sleep(LOCATION_ITERATION_PAUSE_TIME);
}
} catch (InterruptedException e) {
Log.i(TAG, "Interrupted.");
// Do nothing. We expect this to happen when location is successfully updated.
} finally {
Log.i(TAG, "Done moving location.");
}
}
}
}
stack trace:
09-26 11:08:07.870 10417-10417/com.androidfu.example.geofences E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.androidfu.example.geofences, PID: 10417
java.lang.RuntimeException: Unable to resume activity {com.androidfu.example.geofences/com.androidfu.example.geofences.GeofenceExampleLauncher}: java.lang.SecurityException: com.androidfu.example.geofences from uid 10170 not allowed to perform MOCK_LOCATION
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3121)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3152)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2499)
at android.app.ActivityThread.access$900(ActivityThread.java:157)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1356)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5525)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:730)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620)
Caused by: java.lang.SecurityException: com.androidfu.example.geofences from uid 10170 not allowed to perform MOCK_LOCATION
at android.os.Parcel.readException(Parcel.java:1599)
at android.os.Parcel.readException(Parcel.java:1552)
at android.location.ILocationManager$Stub$Proxy.addTestProvider(ILocationManager.java:1096)
at android.location.LocationManager.addTestProvider(LocationManager.java:1298)
at com.androidfu.example.geofences.MapsActivity.onResume(MapsActivity.java:120)
at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1258)
at android.app.Activity.performResume(Activity.java:6347)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3110)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3152) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2499) 
at android.app.ActivityThread.access$900(ActivityThread.java:157) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1356) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:148) 
at android.app.ActivityThread.main(ActivityThread.java:5525) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:730) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620) 

I guess you have not allowed mock locations from phones developer options.
It should be under Debug section.

Android cannot retrieve location

I have created the below code to simply get the most recent latitude and longitude without needing the user to turn on GPS but simply rely on wifi or network for positioning. Upon running the app, it simply returns the toast "The Lat is 0.0 and Long is 0.0". I know this should work because I have downloaded the sample code here: https://github.com/googlesamples/android-play-location/tree/master/BasicLocationSample, and adapted to work in my code.
How can I get this to work?
public class MainActivity extends FragmentActivity implements GoogleApiClient.ConnectionCallbacks, OnConnectionFailedListener {
public static double lat;
public static double lng;
ViewPager viewPager = null;
/**
* Provides the entry point to Google Play services.
*/
protected GoogleApiClient mGoogleApiClient;
/**
* Represents a geographical location.
*/
protected Location mLastLocation;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
buildGoogleApiClient();
String text = "The Lat is " + lat
+ " and Long is " + lng;
Toast.makeText(getBaseContext(), text, Toast.LENGTH_LONG).show();
};
// Assign list to actionbar
actionBar.setListNavigationCallbacks(aAdpt, null); // DEPRACATED
}
/**
* Builds a GoogleApiClient. Uses the addApi() method to request the LocationServices API.
*/
protected synchronized void buildGoogleApiClient() {
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
}
#Override
protected void onStart() {
super.onStart();
mGoogleApiClient.connect();
}
#Override
protected void onStop() {
super.onStop();
if (mGoogleApiClient.isConnected()) {
mGoogleApiClient.disconnect();
}
}
/**
* Runs when a GoogleApiClient object successfully connects.
*/
#Override
public void onConnected(Bundle connectionHint) {
// Provides a simple way of getting a device's location and is well suited for
// applications that do not require a fine-grained location and that do not need location
// updates. Gets the best and most recent location currently available, which may be null
// in rare cases when a location is not available.
mLastLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
if (mLastLocation != null) {
lat = mLastLocation.getLatitude();
lng = mLastLocation.getLongitude();
} else {
Toast.makeText(this,"No location detected", Toast.LENGTH_LONG).show();
}
}
#Override
public void onConnectionFailed(ConnectionResult result) {
// Refer to the javadoc for ConnectionResult to see what error codes might be returned in
// onConnectionFailed.
}
#Override
public void onConnectionSuspended(int cause) {
// The connection to Google Play services was lost for some reason. We call connect() to
// attempt to re-establish the connection.
mGoogleApiClient.connect();
}
}
}

"lat", "lng", and "mLastLocation" isn't set or valid until onConnected() has been executed. You need to understand that this operation is asynchronous -- that is, the location doesn't come back immediately but is provided later on. This would have been obvious if you tested whether "mLastLocation" was null or not when you made that toast.

How to enable android background location updates?

Hey everybody,
I am writing an app that uses geolocation to track a user while he is walking from point A to point B. Here is my code so far:
public class LocationTest extends Activity {
private static final String[] S = { "out of service", "temporarily unavailable", "available" };
ArrayList<Location> list = new ArrayList<Location>();
private TextView output;
private String best;
LocationListener locationListener;
LocationManager mgr;
#Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
output = (TextView) findViewById(R.id.output);
mgr = (LocationManager) getSystemService(LOCATION_SERVICE);
Criteria criteria = new Criteria();
best = mgr.getBestProvider(criteria, true);
log("\nBest provider is: " + best);
locationListener = new LocationListener(){
public void onLocationChanged(Location location){
dumpLocation(location);
list.add(location);
}
public void onStatusChanged(String provider, int status, Bundle extras){
log("\nProvider status changed: " + provider + ", status=" + S[status]);
}
public void onProviderEnabled(String provider){
log("\nProvider enabled: " + provider);
}
public void onProviderDisabled(String provider){
log("\nProvider disabled: " + provider);
}
};
}
#Override
protected void onResume(){
super.onResume();
mgr.requestLocationUpdates(best, 120000, 50, locationListener);
}
#Override
protected void onPause(){
super.onPause();
mgr.removeUpdates(locationListener);
log_gen(list);
}
The app currently displays longitude and latitude whenever new fix is obtained. However, the tracking only works when the Activity is displayed on the screen and as soon as the user quits the app the tracking stops. What I want my app to do is keep tracking the user in the background even if he quits the app. Whenever he re-opens an app few minutes later, for example, all the coordinates captured in the background should be displayed on the screen.
From what I researched so far, there are two ways one can go about it: either use a background service to do the tracking or use
requestLocationUpdates (String provider, long minTime, float minDistance, PendingIntent intent)
in combination with BroadcastReceiver to continue getting location updates even if the user quits the app. If I am understanding correct, the second method would continue running in the background. Can someone please show to me in code how to implement BroadcastReceiver with the alternate version of requestLocationUpdates
Many thanks in advance.

Using the below code you can get the periodic location updates well if are concerned for the continuously running service you can customise the interval for getting the location updates also you would need to integrate the google play services in you app in order the following code to work
public class BackgroundLocationService extends Service implements
GooglePlayServicesClient.ConnectionCallbacks,
GooglePlayServicesClient.OnConnectionFailedListener, LocationListener {
IBinder mBinder = new LocalBinder();
private LocationClient mLocationClient;
private LocationRequest mLocationRequest;
// Flag that indicates if a request is underway.
private boolean mInProgress;
private static final String TAG = BackgroundLocationService.class
.getSimpleName();
private Boolean servicesAvailable = false;
public class LocalBinder extends Binder {
public BackgroundLocationService getServerInstance() {
return BackgroundLocationService.this;
}
}
#Override
public void onCreate() {
super.onCreate();
mInProgress = false;
// Create the LocationRequest object
mLocationRequest = LocationRequest.create();
// Use high accuracy
mLocationRequest
.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
// Set the update interval to 5 seconds
mLocationRequest.setInterval(Constants.UPDATE_INTERVAL);
// Set the fastest update interval to 1 second
mLocationRequest.setFastestInterval(Constants.FASTEST_INTERVAL);
servicesAvailable = servicesConnected();
/*
* Create a new location client, using the enclosing class to handle
* callbacks.
*/
mLocationClient = new LocationClient(this, this, this);
}
private boolean servicesConnected() {
// Check that Google Play services is available
int resultCode = GooglePlayServicesUtil
.isGooglePlayServicesAvailable(this);
// If Google Play services is available
if (ConnectionResult.SUCCESS == resultCode) {
return true;
} else {
return false;
}
}
public int onStartCommand(Intent intent, int flags, int startId) {
super.onStartCommand(intent, flags, startId);
if (!servicesAvailable || mLocationClient.isConnected() || mInProgress)
return START_STICKY;
setUpLocationClientIfNeeded();
if (!mLocationClient.isConnected() || !mLocationClient.isConnecting()
&& !mInProgress) {
mInProgress = true;
mLocationClient.connect();
}
return START_STICKY;
}
/*
* Create a new location client, using the enclosing class to handle
* callbacks.
*/
private void setUpLocationClientIfNeeded() {
if (mLocationClient == null)
mLocationClient = new LocationClient(this, this, this);
}
// Define the callback method that receives location updates
#Override
public void onLocationChanged(final Location location) {
// Report to the UI that the location was updated
String msg = Double.toString(location.getLatitude()) + ","
+ Double.toString(location.getLongitude());
Log.d("debug", msg);
if (location != null) {
// location has the latitude and longitude
}
// Toast.makeText(this, msg, Toast.LENGTH_SHORT).show();
}
#Override
public IBinder onBind(Intent intent) {
return mBinder;
}
public String getTime() {
SimpleDateFormat mDateFormat = new SimpleDateFormat(
"yyyy-MM-dd HH:mm:ss", Locale.US);
return mDateFormat.format(new Date());
}
#Override
public void onDestroy() {
// Turn off the request flag
mInProgress = false;
if (servicesAvailable && mLocationClient != null) {
mLocationClient.removeLocationUpdates(this);
// Destroy the current location client
mLocationClient = null;
}
// Display the connection status
// Toast.makeText(this, DateFormat.getDateTimeInstance().format(new
// Date()) + ": Disconnected. Please re-connect.",
// Toast.LENGTH_SHORT).show();
super.onDestroy();
}
/*
* Called by Location Services when the request to connect the client
* finishes successfully. At this point, you can request the current
* location or start periodic updates
*/
#Override
public void onConnected(Bundle bundle) {
// Request location updates using static settings
mLocationClient.requestLocationUpdates(mLocationRequest, this);
}
/*
* Called by Location Services if the connection to the location client
* drops because of an error.
*/
#Override
public void onDisconnected() {
// Turn off the request flag
mInProgress = false;
// Destroy the current location client
mLocationClient = null;
// Display the connection status
// Toast.makeText(this, DateFormat.getDateTimeInstance().format(new
// Date()) + ": Disconnected. Please re-connect.",
// Toast.LENGTH_SHORT).show();
}
/*
* Called by Location Services if the attempt to Location Services fails.
*/
#Override
public void onConnectionFailed(ConnectionResult connectionResult) {
mInProgress = false;
/*
* Google Play services can resolve some errors it detects. If the error
* has a resolution, try sending an Intent to start a Google Play
* services activity that can resolve error.
*/
if (connectionResult.hasResolution()) {
// If no resolution is available, display an error dialog
} else {
}
}
For integrating google play services please refer here