seleccionar - Administrador de ubicación de Android, obtener ubicación de GPS, si no hay GPS, acceda a la ubicación del proveedor de red

seleccionar aplicacion de ubicacion de prueba no aparece

Question

Estoy usando este código de abajo para obtener ubicaciones:

public Location getLocation() {
        try {
            mLocationManager = (LocationManager) context.getSystemService(LOCATION_SERVICE);

            // getting GPS status
            boolean isGPSEnabled = mLocationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);

            // getting network status
            boolean isNetworkEnabled = mLocationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);

            if (!isGPSEnabled && !isNetworkEnabled) {
                // no network provider is enabled
            } else {
                // First get location from Network Provider
                if (isNetworkEnabled) {
                    mLocationManager.requestLocationUpdates( LocationManager.NETWORK_PROVIDER,  MIN_TIME_BW_UPDATES,  MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
                    Log.d("Network", "Network");
                    if (mLocationManager != null) {
                        location = mLocationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
                        if (location != null) {
                            lat = location.getLatitude();
                            lng = location.getLongitude();
                        }
                    }
                }
                //get the location by gps
                if (isGPSEnabled) {
                    if (location == null) {
                        mLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,MIN_TIME_BW_UPDATES,MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
                        Log.d("GPS Enabled", "GPS Enabled");
                        if (mLocationManager != null) {location = mLocationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
                            if (location != null) {
                                lat = location.getLatitude();
                                lng = location.getLongitude();
                            }
                        }
                    }
                }
            }

        } catch (Exception e) {
            e.printStackTrace();
        }

        return location;
    }

Está funcionando correctamente, pero me gustaría obtener la ubicación del GPS primero, y en caso de que no esté disponible, el administrador de la ubicación debe consultar al proveedor de la red, en el que estoy teniendo problemas.

Por favor, recomiéndame la buena manera de hacer esto.

Answer 1

Clase principal:

public class AndroidLocationActivity extends Activity {

Button btnGPSShowLocation;
Button btnNWShowLocation;

AppLocationService appLocationService;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    appLocationService = new AppLocationService(
            AndroidLocationActivity.this);

    btnGPSShowLocation = (Button) findViewById(R.id.btnGPSShowLocation);
    btnGPSShowLocation.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View arg0) {

            Location gpsLocation = appLocationService
                    .getLocation(LocationManager.GPS_PROVIDER);

            if (gpsLocation != null) {
                double latitude = gpsLocation.getLatitude();
                double longitude = gpsLocation.getLongitude();
                Toast.makeText(
                        getApplicationContext(),
                        "Mobile Location (GPS): /nLatitude: " + latitude
                                + "/nLongitude: " + longitude,
                        Toast.LENGTH_LONG).show();
            } else {
                showSettingsAlert("GPS");
            }

        }
    });

    btnNWShowLocation = (Button) findViewById(R.id.btnNWShowLocation);
    btnNWShowLocation.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View arg0) {

            Location nwLocation = appLocationService
                    .getLocation(LocationManager.NETWORK_PROVIDER);

            if (nwLocation != null) {
                double latitude = nwLocation.getLatitude();
                double longitude = nwLocation.getLongitude();
                Toast.makeText(
                        getApplicationContext(),
                        "Mobile Location (NW): /nLatitude: " + latitude
                                + "/nLongitude: " + longitude,
                        Toast.LENGTH_LONG).show();

            } else {
                showSettingsAlert("NETWORK");
            }

        }
    });

}

public void showSettingsAlert(String provider) {
    AlertDialog.Builder alertDialog = new AlertDialog.Builder(
            AndroidLocationActivity.this);

    alertDialog.setTitle(provider + " SETTINGS");

    alertDialog.setMessage(provider
            + " is not enabled! Want to go to settings menu?");

    alertDialog.setPositiveButton("Settings",
            new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {
                    Intent intent = new Intent(
                            Settings.ACTION_LOCATION_SOURCE_SETTINGS);
                    AndroidLocationActivity.this.startActivity(intent);
                }
            });

    alertDialog.setNegativeButton("Cancel",
            new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {
                    dialog.cancel();
                }
            });

    alertDialog.show();
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.main, menu);
    return true;

}

}

Siguiente clase:

public class AppLocationService extends Service implements LocationListener {

protected LocationManager locationManager;
Location location;

private static final long MIN_DISTANCE_FOR_UPDATE = 10;
private static final long MIN_TIME_FOR_UPDATE = 1000 * 60 * 2;

public AppLocationService(Context context) {
    locationManager = (LocationManager) context
            .getSystemService(LOCATION_SERVICE);
}

public Location getLocation(String provider) {
    if (locationManager.isProviderEnabled(provider)) {
        locationManager.requestLocationUpdates(provider,
                MIN_TIME_FOR_UPDATE, MIN_DISTANCE_FOR_UPDATE, this);
        if (locationManager != null) {
            location = locationManager.getLastKnownLocation(provider);
            return location;
        }
    }
    return null;
}

@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) {
}

@Override
public IBinder onBind(Intent arg0) {
    return null;
}

}

No olvides añadir en tu manifiesto.

<!-- to get location using GPS -->
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

<!-- to get location using NetworkProvider -->
<uses-permission android:name="android.permission.INTERNET" />

Answer 2

Está diciendo que primero necesita la ubicación del GPS si está disponible, pero lo que hizo primero es obtener la ubicación del proveedor de la red y luego del GPS. Esto obtendrá la ubicación de la red y el GPS también si ambos están disponibles. Lo que puedes hacer es escribir estos casos en if..else if block. Similar a-

if( !isGPSEnabled && !isNetworkEnabled) {

// Can''t get location by any way

} else {

    if(isGPSEnabled) {

    // get location from GPS

    } else if(isNetworkEnabled) {

    // get location from Network Provider

    }
}

Así que esto buscará la ubicación del GPS primero (si está disponible), de lo contrario, intentará obtener la ubicación del Proveedor de la red.

EDITAR :

Para hacerlo mejor, voy a publicar un fragmento. Considera que está en try-catch :

boolean gps_enabled = false;
boolean network_enabled = false;

LocationManager lm = (LocationManager) mCtx
                .getSystemService(Context.LOCATION_SERVICE);

gps_enabled = lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
network_enabled = lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER);

Location net_loc = null, gps_loc = null, finalLoc = null;

if (gps_enabled)
    gps_loc = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (network_enabled)
    net_loc = lm.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);

if (gps_loc != null && net_loc != null) {

    //smaller the number more accurate result will
    if (gps_loc.getAccuracy() > net_loc.getAccuracy()) 
        finalLoc = net_loc;
    else
        finalLoc = gps_loc;

        // I used this just to get an idea (if both avail, its upto you which you want to take as I''ve taken location with more accuracy)

} else {

    if (gps_loc != null) {
        finalLoc = gps_loc;
    } else if (net_loc != null) {
        finalLoc = net_loc;
    }
}

Ahora verifica finalLoc para null , si no, return Puede escribir el código anterior en una función que devuelve la ubicación deseada ( finalLoc ). Creo que esto podría ayudar.

Answer 3

Hice algunos cambios en el código anterior para buscar una corrección de ubicación tanto por GPS como por red durante unos 5 segundos y darme la mejor ubicación conocida.

public class LocationService implements LocationListener {

    boolean isGPSEnabled = false;

    boolean isNetworkEnabled = false;

    boolean canGetLocation = false;

    final static long MIN_TIME_INTERVAL = 60 * 1000L;

    Location location;


    // The minimum distance to change Updates in meters
    private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 0; // 10

    // The minimum time between updates in milliseconds
    private static final long MIN_TIME_BW_UPDATES = 1; // 1 minute

    protected LocationManager locationManager;

    private CountDownTimer timer = new CountDownTimer(5 * 1000, 1000) {

        public void onTick(long millisUntilFinished) {

        }

        public void onFinish() {
            stopUsingGPS();
        }
    };

    public LocationService() {
        super(R.id.gps_service_id);
    }


    public void start() {
        if (Utils.isNetworkAvailable(context)) {

            try {


                timer.start();


                locationManager = (LocationManager) context
                        .getSystemService(Context.LOCATION_SERVICE);

                isGPSEnabled = locationManager
                        .isProviderEnabled(LocationManager.GPS_PROVIDER);

                isNetworkEnabled = locationManager
                        .isProviderEnabled(LocationManager.NETWORK_PROVIDER);
                this.canGetLocation = true;
                if (isNetworkEnabled) {
                    locationManager.requestLocationUpdates(
                            LocationManager.NETWORK_PROVIDER,
                            MIN_TIME_BW_UPDATES,
                            MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
                    Log.d("Network", "Network");
                    if (locationManager != null) {
                        Location tempLocation = locationManager
                                .getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
                        if (tempLocation != null
                                && isBetterLocation(tempLocation,
                                        location))
                            location = tempLocation;
                    }
                }
                if (isGPSEnabled) {

                    locationManager.requestSingleUpdate(
                            LocationManager.GPS_PROVIDER, this, 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 tempLocation = locationManager
                                .getLastKnownLocation(LocationManager.GPS_PROVIDER);
                        if (tempLocation != null
                                && isBetterLocation(tempLocation,
                                        location))
                            location = tempLocation;
                    }
                }

            } catch (Exception e) {
                onTaskError(e.getMessage());
                e.printStackTrace();
            }
        } else {
            onOfflineResponse(requestData);
        }
    }

    public void stopUsingGPS() {
        if (locationManager != null) {
            locationManager.removeUpdates(LocationService.this);
        }
    }

    public boolean canGetLocation() {
        locationManager = (LocationManager) context
                .getSystemService(Context.LOCATION_SERVICE);
        isGPSEnabled = locationManager
                .isProviderEnabled(LocationManager.GPS_PROVIDER);

        // getting network status
        isNetworkEnabled = locationManager
                .isProviderEnabled(LocationManager.NETWORK_PROVIDER);
        return isGPSEnabled || isNetworkEnabled;
    }

    @Override
    public void onLocationChanged(Location location) {

        if (location != null
                && isBetterLocation(location, this.location)) {

            this.location = location;

        }
    }

    @Override
    public void onProviderDisabled(String provider) {
    }

    @Override
    public void onProviderEnabled(String provider) {
    }

    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {
    }

    @Override
    public Object getResponseObject(Object location) {
        return location;
    }

    public static boolean isBetterLocation(Location location,
            Location currentBestLocation) {
        if (currentBestLocation == null) {
            // A new location is always better than no location
            return true;
        }

        // Check whether the new location fix is newer or older
        long timeDelta = location.getTime() - currentBestLocation.getTime();
        boolean isSignificantlyNewer = timeDelta > MIN_TIME_INTERVAL;
        boolean isSignificantlyOlder = timeDelta < -MIN_TIME_INTERVAL;
        boolean isNewer = timeDelta > 0;

        // If it''s been more than two minutes since the current location,
        // use the new location
        // because the user has likely moved
        if (isSignificantlyNewer) {
            return true;
            // If the new location is more than two minutes older, it must
            // be worse
        } else if (isSignificantlyOlder) {
            return false;
        }

        // Check whether the new location fix is more or less accurate
        int accuracyDelta = (int) (location.getAccuracy() - currentBestLocation
                .getAccuracy());
        boolean isLessAccurate = accuracyDelta > 0;
        boolean isMoreAccurate = accuracyDelta < 0;
        boolean isSignificantlyLessAccurate = accuracyDelta > 200;

        // Check if the old and new location are from the same provider
        boolean isFromSameProvider = isSameProvider(location.getProvider(),
                currentBestLocation.getProvider());

        // Determine location quality using a combination of timeliness and
        // accuracy
        if (isMoreAccurate) {
            return true;
        } else if (isNewer && !isLessAccurate) {
            return true;
        } else if (isNewer && !isSignificantlyLessAccurate
                && isFromSameProvider) {
            return true;
        }
        return false;
    }

}

En la clase anterior, estoy registrando un detector de ubicación tanto para el GPS como para la red, por lo que uno o ambos pueden devolver una llamada a onLocationChanged varias veces y simplemente comparamos la nueva solución de ubicación con la que ya tenemos y mantenemos la el mejor.

Answer 4

La forma recomendada de hacer esto es usar LocationClient :

Primero, defina los valores del intervalo de actualización de la ubicación. Ajusta esto a tus necesidades.

private static final int MILLISECONDS_PER_SECOND = 1000;
private static final long UPDATE_INTERVAL = MILLISECONDS_PER_SECOND * UPDATE_INTERVAL_IN_SECONDS;
private static final int FASTEST_INTERVAL_IN_SECONDS = 1;
private static final long FASTEST_INTERVAL = MILLISECONDS_PER_SECOND * FASTEST_INTERVAL_IN_SECONDS;

Haga que su Activity implemente GooglePlayServicesClient.ConnectionCallbacks , GooglePlayServicesClient.OnConnectionFailedListener y LocationListener .

public class LocationActivity extends Activity implements 
GooglePlayServicesClient.ConnectionCallbacks, GooglePlayServicesClient.OnConnectionFailedListener, LocationListener {}

Luego, configure un LocationClient en el método onCreate() de su Activity :

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    mLocationClient = new LocationClient(this, this, this);

    mLocationRequest = LocationRequest.create();
    mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
    mLocationRequest.setInterval(UPDATE_INTERVAL);
    mLocationRequest.setFastestInterval(FASTEST_INTERVAL);
}

Agregue los métodos requeridos a su Activity ; onConnected() es el método al que se llama cuando se conecta el LocationClient . onLocationChanged() es donde recuperarás la ubicación más actualizada.

@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
    Log.w(TAG, "Location client connection failed");
}

@Override
public void onConnected(Bundle dataBundle) {
    Log.d(TAG, "Location client connected");
    mLocationClient.requestLocationUpdates(mLocationRequest, this); 
}

@Override
public void onDisconnected() {
    Log.d(TAG, "Location client disconnected");
}

@Override
public void onLocationChanged(Location location) {
    if (location != null) {
        Log.d(TAG, "Updated Location: " + Double.toString(location.getLatitude()) + "," + Double.toString(location.getLongitude()));
    } else {
        Log.d(TAG, "Updated location NULL");
    } 
}     

Asegúrese de conectar / desconectar el LocationClient para que solo use una batería adicional cuando sea absolutamente necesario y para que el GPS no se ejecute indefinidamente. El LocationClient debe estar conectado para obtener datos de él.

public void onResume() {
    super.onResume();
    mLocationClient.connect();
}

public void onStop() {
    if (mLocationClient.isConnected()) {
        mLocationClient.removeLocationUpdates(this);
    }
    mLocationClient.disconnect();
    super.onStop();
}

Obtener la ubicación del usuario. Primero intente usar el LocationClient ; si eso falla, recurra al LocationManager .

public Location getLocation() {
    if (mLocationClient != null && mLocationClient.isConnected()) {
        return mLocationClient.getLastLocation();
    } else {
        LocationManager locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
        if (locationManager != null) {
            Location lastKnownLocationGPS = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
            if (lastKnownLocationGPS != null) {
                return lastKnownLocationGPS;
            } else {
                return locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
            }
        } else {
            return null;
        }
    }
}

Answer 5

Si desea ejecutar dentro de un servicio en segundo plano y tomar los datos en primer plano utilice el siguiente, se prueba y verifica.

public class MyService extends Service 
        implements OnMapReadyCallback, GoogleApiClient.ConnectionCallbacks, 
        GoogleApiClient.OnConnectionFailedListener, 
        com.google.android.gms.location.LocationListener {


    private static final int ASHIS = 1234;
    Intent intentForPendingIntent;
    HandlerThread handlerThread;
    Looper looper;
    GoogleApiClient mGoogleApiClient;
    private LocationRequest mLocationRrequest;
    private static final int UPDATE_INTERVAL = 1000;
    private static final int FASTEST_INTERVAL = 100;
    private static final int DSIPLACEMENT_UPDATES = 1;
    ;
    private Handler handler1;
    private Runnable runable1;
    private Location mLastLocation;
    private float waitingTime;
    private int waiting2min;
    private Location locationOld;
    private double distance;
    private float totalWaiting;
    private float speed;
    private long timeGpsUpdate;
    private long timeOld;
    private NotificationManager mNotificationManager;
    Notification notification;
    PendingIntent resultPendingIntent;
    NotificationCompat.Builder mBuilder;


    // Sets an ID for the notification
    int mNotificationId = 001;
    private static final String TAG = "BroadcastService";
    public static final String BROADCAST_ACTION = "speedExceeded";
    private final Handler handler = new Handler();
    Intent intentforBroadcast;
    int counter = 0;
    private Runnable sendUpdatesToUI;

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        Toast.makeText(MyService.this, "binder", Toast.LENGTH_SHORT).show();

        return null;
    }


    @Override
    public void onCreate() {
        showNotification();
        intentforBroadcast  = new Intent(BROADCAST_ACTION);

        Toast.makeText(MyService.this, "created", Toast.LENGTH_SHORT).show();

        if (mGoogleApiClient == null) {
            mGoogleApiClient = new GoogleApiClient.Builder(this)
                    .addConnectionCallbacks(this)
                    .addOnConnectionFailedListener(this)
                    .addApi(LocationServices.API)
                    .build();
        }
        createLocationRequest();
        mGoogleApiClient.connect();


    }

    @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
    private void showNotification() {

        mBuilder =
                (NotificationCompat.Builder) new NotificationCompat.Builder(this)
                        .setSmallIcon(R.drawable.ic_media_play)
                        .setContentTitle("Total Waiting Time")
                        .setContentText(totalWaiting+"");


        Intent resultIntent = new Intent(this, trackingFusion.class);

        // Because clicking the notification opens a new ("special") activity, there''s
        // no need to create an artificial back stack.
        PendingIntent resultPendingIntent =
                PendingIntent.getActivity(
                        this,
                        0,
                        resultIntent,
                        PendingIntent.FLAG_UPDATE_CURRENT
                );
        mBuilder.setContentIntent(resultPendingIntent);
        NotificationManager mNotifyMgr =
                (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
        // Builds the notification and issues it.

        mNotifyMgr.notify(mNotificationId, mBuilder.build());


        startForeground(001, mBuilder.getNotification());
    }


    @Override
    public void onLocationChanged(Location location) {

        //handler.removeCallbacks(runable);

        Toast.makeText(MyService.this, "speed" + speed, Toast.LENGTH_SHORT).show();
        timeGpsUpdate = location.getTime();
        float delta = (timeGpsUpdate - timeOld) / 1000;
        if (location.getAccuracy() < 100) {
            speed = location.getSpeed();
            distance += mLastLocation.distanceTo(location);
            Log.e("distance", "onLocationChanged: " + distance);
            //mLastLocation = location;
            //newLocation = mLastLocation;

            Log.e("location:", location + "");


            //speed = (long) (distance / delta);


            locationOld = location;
            mLastLocation = location;

            diaplayViews();
        }

        diaplayViews();
     /*if (map != null) {
         map.addMarker(new MarkerOptions()
                 .position(new LatLng(location.getLatitude(), location.getLongitude()))
                 .title("Hello world"));


     }*/
    }


    private void createLocationRequest() {

        mLocationRrequest = new LocationRequest();

        mLocationRrequest.setInterval(UPDATE_INTERVAL);
        mLocationRrequest.setFastestInterval(FASTEST_INTERVAL);
        mLocationRrequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
        mLocationRrequest.setSmallestDisplacement(DSIPLACEMENT_UPDATES);

    }


    private void methodToCalculateWaitingTime() {


        if (handler1 != null) {
            handler1.removeCallbacks(runable1);

        }


        Log.e("Here", "here1");
        handler1 = new Handler(Looper.getMainLooper());
        runable1 = new Runnable() {
            public void run() {

                Log.e("Here", "here2:" + mLastLocation.getSpeed());


                if (mLastLocation != null) {
                    diaplayViews();
                    if ((mLastLocation.getSpeed() == 0.0)) {

                        increaseTime();

                    } else {
                        if (waitingTime <= 120) {
                            waiting2min = 0;

                        }
                    }
                    handler1.postDelayed(this, 10000);
                } else {
                    if (ActivityCompat.checkSelfPermission(MyService.this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(MyService.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;
                    }

                    locationOld = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
                    mLastLocation = locationOld;

                }
            }
        };

        handler1.postDelayed(runable1, 10000);


    }

    private void diaplayViews() {
        float price = (float) (14 + distance * 0.5);

        //textDistance.setText(waitingTime);a
    }


    private void increaseTime() {
        waiting2min = waiting2min + 10;
        if (waiting2min >= 120)

        {
            if (waiting2min == 120) {
                waitingTime = waitingTime + 2 * 60;


            } else {
                waitingTime = waitingTime + 10;
            }


            totalWaiting = waitingTime / 60;
            showNotification();
            Log.e("waiting Time", "increaseTime: " + totalWaiting);
        }


    }

    @Override
    public void onDestroy() {
        Toast.makeText(MyService.this, "distroyed", Toast.LENGTH_SHORT).show();
        if (mGoogleApiClient.isConnected()) {

            mGoogleApiClient.disconnect();
        }
        mGoogleApiClient.disconnect();

    }

    @Override
    public void onConnected(Bundle bundle) {
        Log.e("Connection_fusion", "connected");

        startLocationUpdates();


    }


    @Override
    public void onConnectionSuspended(int i) {

    }

    private void startLocationUpdates() {
        Location location = plotTheInitialMarkerAndGetInitialGps();
        if (location == null) {
            plotTheInitialMarkerAndGetInitialGps();


        } else {

            mLastLocation = location;
            methodToCalculateWaitingTime();
        }
    }

    private Location plotTheInitialMarkerAndGetInitialGps() {
        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 null;
        }
        LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRrequest, this);
        locationOld = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
        if ((locationOld != null)) {
            mLastLocation = locationOld;

            timeOld = locationOld.getTime();
        } else {
            startLocationUpdates();
        }

        return mLastLocation;
    }


    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        onStart(intent, startId);
        Toast.makeText(MyService.this, "start command", Toast.LENGTH_SHORT).show();

        sendUpdatesToUI = new Runnable() {
            public void run() {
                DisplayLoggingInfo();
                handler.postDelayed(this, 10000); // 5 seconds
            }
        };
        handler.postDelayed(sendUpdatesToUI, 10000); // 1 second
        Log.i("LocalService", "Received start id " + startId + ": " + intent);
        return START_NOT_STICKY;
    }

    @Override
    public void onStart(Intent intent, int startId) {
        sendUpdatesToUI = new Runnable() {
            public void run() {
                Log.e("sent", "sent");
                DisplayLoggingInfo();
                handler.postDelayed(this, 5000); // 5 seconds
            }
        };
        handler.postDelayed(sendUpdatesToUI, 1000); // 1 second
        Log.i("LocalService", "Received start id " + startId + ": " + intent);
        super.onStart(intent, startId);
    }

    private void DisplayLoggingInfo() {
        Log.d(TAG, "entered DisplayLoggingInfo");
        intentforBroadcast.putExtra("distance", distance);
        LocalBroadcastManager.getInstance(this).sendBroadcast(intentforBroadcast);
    }

    @Override
    public void onConnectionFailed(ConnectionResult connectionResult) {

    }

    @Override
    public void onMapReady(GoogleMap googleMap) {

    }
}

Answer 6

hay mejores maneras de hacerlo como se menciona en los sitios de desarrolladores de Android http://developer.android.com/guide/topics/location/strategies.html

Answer 7

use la API de fusión que el desarrollador de Google ha desarrollado con la fusión del Sensor GPS, el Magnetómetro, el Acelerómetro y el uso de Wifi o la ubicación de la celda para calcular o calcular la ubicación. También es capaz de dar actualizaciones de ubicación también dentro del edificio con precisión.

package com.example.ashis.gpslocation;

import android.app.Activity;
import android.location.Location;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.TextView;
import android.widget.Toast;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.GoogleApiClient.ConnectionCallbacks;
import com.google.android.gms.common.api.GoogleApiClient.OnConnectionFailedListener;
import com.google.android.gms.location.LocationListener;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationServices;

import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;

/**
 * Location sample.
 *
 * Demonstrates use of the Location API to retrieve the last known location for a device.
 * This sample uses Google Play services (GoogleApiClient) but does not need to authenticate a user.
 * See https://github.com/googlesamples/android-google-accounts/tree/master/QuickStart if you are
 * also using APIs that need authentication.
 */

public class MainActivity extends Activity implements LocationListener,
        GoogleApiClient.ConnectionCallbacks,
        GoogleApiClient.OnConnectionFailedListener {

    private static final long ONE_MIN = 500;
    private static final long TWO_MIN = 500;
    private static final long FIVE_MIN = 500;
    private static final long POLLING_FREQ = 1000 * 20;
    private static final long FASTEST_UPDATE_FREQ = 1000 * 5;
    private static final float MIN_ACCURACY = 1.0f;
    private static final float MIN_LAST_READ_ACCURACY = 1;

    private LocationRequest mLocationRequest;
    private Location mBestReading;
TextView tv;
    private GoogleApiClient mGoogleApiClient;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        if (!servicesAvailable()) {
            finish();
        }

        setContentView(R.layout.activity_main);
tv= (TextView) findViewById(R.id.tv1);
        mLocationRequest = LocationRequest.create();
        mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
        mLocationRequest.setInterval(POLLING_FREQ);
        mLocationRequest.setFastestInterval(FASTEST_UPDATE_FREQ);

        mGoogleApiClient = new GoogleApiClient.Builder(this)
                .addApi(LocationServices.API)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .build();


        if (mGoogleApiClient != null) {
            mGoogleApiClient.connect();
        }
    }

    @Override
    protected void onResume() {
        super.onResume();

        if (mGoogleApiClient != null) {
            mGoogleApiClient.connect();
        }
    }

    @Override
    protected void onPause() {d
        super.onPause();

        if (mGoogleApiClient != null && mGoogleApiClient.isConnected()) {
            mGoogleApiClient.disconnect();
        }
    }


        tv.setText(location + "");
        // Determine whether new location is better than current best
        // estimate
        if (null == mBestReading || location.getAccuracy() < mBestReading.getAccuracy()) {
            mBestReading = location;


            if (mBestReading.getAccuracy() < MIN_ACCURACY) {
                LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
            }
        }
    }

    @Override
    public void onConnected(Bundle dataBundle) {
        // Get first reading. Get additional location updates if necessary
        if (servicesAvailable()) {

            // Get best last location measurement meeting criteria
            mBestReading = bestLastKnownLocation(MIN_LAST_READ_ACCURACY, FIVE_MIN);

            if (null == mBestReading
                    || mBestReading.getAccuracy() > MIN_LAST_READ_ACCURACY
                    || mBestReading.getTime() < System.currentTimeMillis() - TWO_MIN) {

                LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);

               //Schedule a runnable to unregister location listeners

                    @Override
                    public void run() {
                        LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, MainActivity.this);

                    }

                }, ONE_MIN, TimeUnit.MILLISECONDS);

            }

        }
    }

    @Override
    public void onConnectionSuspended(int i) {

    }


    private Location bestLastKnownLocation(float minAccuracy, long minTime) {
        Location bestResult = null;
        float bestAccuracy = Float.MAX_VALUE;
        long bestTime = Long.MIN_VALUE;

        // Get the best most recent location currently available
        Location mCurrentLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
        //tv.setText(mCurrentLocation+"");
        if (mCurrentLocation != null) {
            float accuracy = mCurrentLocation.getAccuracy();
            long time = mCurrentLocation.getTime();

            if (accuracy < bestAccuracy) {
                bestResult = mCurrentLocation;
                bestAccuracy = accuracy;
                bestTime = time;
            }
        }

        // Return best reading or null
        if (bestAccuracy > minAccuracy || bestTime < minTime) {
            return null;
        }
        else {
            return bestResult;
        }
    }

    @Override
    public void onConnectionFailed(ConnectionResult connectionResult) {

    }

    private boolean servicesAvailable() {
        int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);

        if (ConnectionResult.SUCCESS == resultCode) {
            return true;
        }
        else {
            GooglePlayServicesUtil.getErrorDialog(resultCode, this, 0).show();
            return false;
        }
    }
}