I want to make a service (background operation) in Android to track the location of a device every now and then and store it on SharedPreference or send it to my server when location changes. I came accross this code from Get current location name of user without using gps or internet but by using Network_Provider in android and Android Developers - Getting the Last Known Location.
This is the code:
public class MainActivity extends AppCompatActivity implements ConnectionCallbacks, OnConnectionFailedListener { protected static final String TAG = "MainActivity"; /** * Provides the entry point to Google Play services. */ protected GoogleApiClient mGoogleApiClient; /** * Represents a geographical location. */ protected Location mLastLocation; protected String mLatitudeLabel; protected String mLongitudeLabel; protected TextView mLatitudeText; protected TextView mLongitudeText; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main_activity); mLatitudeLabel = getResources().getString(R.string.latitude_label); mLongitudeLabel = getResources().getString(R.string.longitude_label); mLatitudeText = (TextView) findViewById((R.id.latitude_text)); mLongitudeText = (TextView) findViewById((R.id.longitude_text)); buildGoogleApiClient(); } /** * 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) { Log.e("Location", "not null"); makeUseOfNewLocation(mLastLocation); } else { Toast.makeText(this, R.string.no_location_detected, Toast.LENGTH_LONG).show(); // should request new one // location should be enabled Log.i(TAG, "No location data previously acquired.. should request!"); Toast.makeText(this, "Requesting location data ..", Toast.LENGTH_SHORT).show(); LocationRequest locationRequest = LocationRequest.create(); locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY); locationRequest.setInterval(5000); PendingResult<Status> result = LocationServices.FusedLocationApi .requestLocationUpdates(mGoogleApiClient, locationRequest, new LocationListener() { @Override public void onLocationChanged(Location location) { Log.e("Location", "not null"); makeUseOfNewLocation(location); } }); // TODO: use result to retrieve more info Toast.makeText(this, result.toString(),Toast.LENGTH_LONG); } } @Override public void onConnectionFailed(ConnectionResult result) { // Refer to the javadoc for ConnectionResult to see what error codes might be returned in // onConnectionFailed. Log.i(TAG, "Connection failed: ConnectionResult.getErrorCode() = " + result.getErrorCode()); } @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. Log.i(TAG, "Connection suspended"); mGoogleApiClient.connect(); } private void makeUseOfNewLocation(Location location) { // do your stuff here mLatitudeText.setText(String.format("%s: %f", mLatitudeLabel, location.getLatitude())); mLongitudeText.setText(String.format("%s: %f", mLongitudeLabel, location.getLongitude())); } } My question is can this code be a Service by just extending Service on this class. Will this work and be able to track the device's location every now and then on the background
