Проблема с получением текущего местоположения с помощью GPS_PROVIDER и NETWORK_PROVIDER

Я пытаюсь получить текущее местоположение в своем приложении для Android. Но каждый раз, когда я получаю свое местоположение как нулевое. Я сделал, как показано ниже:

private void getLocation() {
    try {
        if (ActivityCompat.checkSelfPermission((Activity) mContext, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission((Activity) mContext, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            Constant.displayLogE(">> PErmission >> ", ">> not granted");
            return;
        } else {
            mLocationManager = (LocationManager) mContext
                    .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 {
                if (isNetworkEnabled) {
                    mLocationManager.requestLocationUpdates(
                            LocationManager.NETWORK_PROVIDER,
                            0,
                            0, this);
                    if (mLocationManager != null) {

                        mLocation = mLocationManager
                                .getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
                        if (mLocation != null) {
                            mCurrentLatitude = mLocation.getLatitude();
                            mCurrentLongitude = mLocation.getLongitude();
                            loadFilterListData();
                        }
                    }
                } else if (isGPSEnabled) {
                    if (mLocation == null) {
                        mLocationManager.requestLocationUpdates(
                                LocationManager.GPS_PROVIDER,
                                0,
                                0, this);
                        if (mLocationManager != null) {
                            mLocation = mLocationManager
                                    .getLastKnownLocation(LocationManager.GPS_PROVIDER);
                            if (mLocation != null) {
                                mCurrentLatitude = mLocation.getLatitude();
                                mCurrentLongitude = mLocation.getLongitude();
                                loadFilterListData();
                            }
                        }
                    }
                }
                if (mLocation == null) {
                    Constant.displayToast(mContext, "Location not fetched. Please, try again.");
                }
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

}

Я не знаю решения для этого, так как я проверяю как NETWORK_PROVIDER, так и GPS_PROVIDER. Но каждый раз получая mLocation значение null.

Я также дал необходимые разрешения в моем файле манифеста.

В чем может быть проблема?

Спасибо.


person ZaptechDev Kumar    schedule 07.06.2017    source источник
comment
оформить заказ: stackoverflow.com/a/38397092/5955362   -  person Jaydeep Devda    schedule 07.06.2017
comment
Проверяет ли LocationServices.FusedLocationApi как NETWORK_PROVIDER, так и GPS_PROVIDER?   -  person ZaptechDev Kumar    schedule 07.06.2017
comment
Спасибо, @JaydeepPatel, fusedapi потрясающий..!!!   -  person ZaptechDev Kumar    schedule 07.06.2017


Ответы (5)


Это мой класс MapsActivity с обновлениями местоположения, вы можете обновить свой код, используя мой код

package com.example.vishal.gpsloc;

import android.content.Context;
import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.graphics.Color;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import android.os.Environment;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.FragmentActivity;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
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.ResultCallback;
import com.google.android.gms.common.api.Status;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;

import org.fusesource.mqtt.client.BlockingConnection;
import org.fusesource.mqtt.client.MQTT;

import java.io.File;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.text.DateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import com.google.android.gms.maps.model.Polyline;
import com.google.android.gms.maps.model.PolylineOptions;
import com.google.android.gms.vision.barcode.Barcode;

public class MapsActivity extends FragmentActivity implements OnMapReadyCallback, GoogleApiClient.OnConnectionFailedListener, GoogleApiClient.ConnectionCallbacks, GoogleMap.OnMarkerDragListener, GoogleMap.OnMapLongClickListener, com.google.android.gms.location.LocationListener, GoogleMap.OnMapClickListener, ResultCallback<Status> {

    GoogleMap mMap;

    private MarkerOptions marker1, marker2;
    private final int GEOFENCE_REQ_CODE = 0;
    private GoogleApiClient googleApiClient;
    private double longitude;
    private double latitude;
    double lat,lon;

    List latt=new ArrayList();
    List longi=new ArrayList();

    Location lastLocation;
    String ip=null;

    SharedPreferences pref;
    SharedPreferences.Editor editor;
    int flag=1;String cityName,stateName,countryName,root;

    private ArrayList<LatLng> points; //added
    Polyline line; //added

    File log,myDir;


    private static MQTT mqtt;
    private static BlockingConnection connection;


    private final int UPDATE_INTERVAL = 60000 ;
    private final int FASTEST_INTERVAL = 60000 ;
    private static final float SMALLEST_DISPLACEMENT = 0.25F; //quarter of a meter


    String currentDateTimeString = DateFormat.getDateTimeInstance().format(new Date()), cord, devname, devid = android.os.Build.SERIAL;
    @Override
    public void onBackPressed() {
        super.onBackPressed();


    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        try {
            super.onCreate(savedInstanceState);
            CheckConnection();
            if (!isGooglePlayServicesAvailable()) {
                System.out.println(" My Google Play Not Available");
                finish();
            }
            points = new ArrayList<LatLng>(); //added
            setContentView(R.layout.route_mapper);
            // Obtain the SupportMapFragment and get notified when the map is ready to be used.
            SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                    .findFragmentById(R.id.map);
            mapFragment.getMapAsync(this);

            InitializeDB();

            //Initializing googleApiClient
            googleApiClient = new GoogleApiClient.Builder(this)
                    .addConnectionCallbacks(this)
                    .addOnConnectionFailedListener(this)
                    .addApi(LocationServices.API)
                    .build();
            googleApiClient.connect();

            findViewById(R.id.fab).setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {

                    PunchStop();
                }
            });



            if (this.mMap != null) {

                if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.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.
                    mMap.setMyLocationEnabled(true);
                    return;
                }

            }

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

        mqtt=new MQTT();
        try{
            if(ip==null){
                System.out.println("Mqtt Initialized in Maps Activity");
                ip="demo.aiotm.in:1883";
            }
            //mqtt.setHost("tcp://"+ip);
            mqtt.setHost("tcp://10.30.60.242:1883");
            connection = mqtt.blockingConnection();
            connection.connect();
        }catch (Exception e){
            e.printStackTrace();

        }
    }

    private void InitializeDB() {
        pref = getApplicationContext().getSharedPreferences("MyPref", 0); // 0 - for private mode
        editor = pref.edit();
        if (isExternalStorageReadable() == true && isExternalStorageWritable() == true) {
            root = Environment.getExternalStorageDirectory().toString();
            myDir = new File(root + "/GpsTracking");
            myDir.mkdirs();
            log = new File (myDir, "GpsLog");
            if (myDir.exists()) {
                System.out.println("Directory Already Exsists............");
            } else {
                try {
                    myDir = new File(root + "/GpsTracking");
                    myDir.mkdirs();
                    log = new File (myDir, "GpsLog");

                } catch (Exception e) {
                    Toast.makeText(getBaseContext()
                            ,e.toString(),
                            Toast.LENGTH_SHORT).show();
                    e.printStackTrace();
                }


            }
        }else {Toast.makeText(getBaseContext(),
                "Permissions Not Availiable'",
                Toast.LENGTH_SHORT).show();}
    }

    private void PunchStop() {
        System.out.println("stop Location is "+latitude+","+longitude+"\t"+cityName   );
try {
    String currentDateTimeString = DateFormat.getDateTimeInstance().format(new Date());
    PrintWriter out = new PrintWriter(new FileWriter(log, true));
   out.append(currentDateTimeString+"\t"+latitude+","+longitude+"\t"+cityName+"\n");
   out.close();
    Toast.makeText(getBaseContext(),
            "Done writing SD 'GpsLog.txt'",
            Toast.LENGTH_SHORT).show();

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

        }


    private boolean isGooglePlayServicesAvailable() {
        int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
        if (ConnectionResult.SUCCESS == status) {
            return true;
        } else {
            GooglePlayServicesUtil.getErrorDialog(status, this, 0).show();
            return false;
        }
    }

    private void CheckConnection() {
        String answer=null;
        ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
        if (null != activeNetwork) {
            if(activeNetwork.getType() == ConnectivityManager.TYPE_WIFI)
                answer="You are connected to a WiFi Network";
            if(activeNetwork.getType() == ConnectivityManager.TYPE_MOBILE)
                answer="You are connected to a Mobile Network";
        }
        else
            answer = "No internet Connectivity";
        Toast.makeText(getApplicationContext(), answer, Toast.LENGTH_LONG).show();
    }

    /**
     * Manipulates the map once available.
     * This callback is triggered when the map is ready to be used.
     * This is where we can add markers or lines, add listeners or move the camera. In this case,
     * If Google Play services is not installed on the device, the user will be prompted to install
     * it inside the SupportMapFragment. This method will only be triggered once the user has
     * installed Google Play services and returned to the app.
     */
    @Override
    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;

        mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
        getCurrentLocation();
        mMap.setOnMapLongClickListener(this);
        mMap.setOnMapClickListener(this);


    }

    @Override
    public boolean onKeyLongPress(int keyCode, KeyEvent event) {
        if( keyCode == KeyEvent.KEYCODE_POWER ) {
            //Handle what you want in long press.
            Toast.makeText(getApplicationContext(),"Power Key Pressed",Toast.LENGTH_LONG).show();
                flag=1;
            return true;
        }
        return super.onKeyLongPress(keyCode, event);
    }

    private void getCurrentLocation() {
       //mMap.clear();
        if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.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;
        }
        Location location = LocationServices.FusedLocationApi.getLastLocation(googleApiClient);
        if (location != null) {
            //Getting longitude and latitude
            longitude = location.getLongitude();
            latitude = location.getLatitude();

            System.out.println("Parameters are ::" + latitude + ":" + longitude);
            //moving the map to location
            moveMap();

        }
    }

    private void moveMap() {
        /**
         * Creating the latlng object to store lat, long coordinates
         * adding marker to map
         * move the camera with animation
         */
        LatLng latLng = new LatLng(latitude, longitude);
        try {
            Geocoder geocoder = new Geocoder(this, Locale.getDefault());
            List<Address> addresses = null;
            addresses = geocoder.getFromLocation(latitude, longitude, 1);
            cityName = addresses.get(0).getAddressLine(0);
            stateName = addresses.get(0).getAddressLine(1);
            countryName = addresses.get(0).getAddressLine(2);
        } catch (IOException e) {
            e.printStackTrace();
        }
        mMap.addMarker(new MarkerOptions()
                .position(latLng)
                .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA))
                .draggable(true)
                .title(cityName))
                .showInfoWindow();
        mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
        mMap.animateCamera(CameraUpdateFactory.zoomTo(15));
        mMap.getUiSettings().setZoomControlsEnabled(true);
    }

    @Override
    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
        Log.i("info", "Connection Failed");
        try {
          //  connection.disconnect();
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    @Override
    public void onConnected(@Nullable Bundle bundle) {
        Toast.makeText(MapsActivity.this, "Connected", Toast.LENGTH_SHORT).show();
        getCurrentLocation();

        Log.i("info", "onConnected()");
        getLastKnownLocation();

    }

    private void getLastKnownLocation() {
        Log.d("INFO", "getLastKnownLocation()");
        System.out.println("info :: getLastKnownLocation");
        if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.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;
        }
       lastLocation = LocationServices.FusedLocationApi.getLastLocation(googleApiClient);
        if (lastLocation != null) {
            Log.i("INFO", "LasKnown location. " +
                    "Long: " + lastLocation.getLongitude() +
                    " | Lat: " + lastLocation.getLatitude());
            writeLastLocation();
            startLocationUpdates();
        } else {
            Log.w("INFO", "No location retrieved yet");
            startLocationUpdates();
        }


    }

    private LocationRequest locationRequest;


    // Start location Updatess
    private void startLocationUpdates() {
        Log.i("INFO", "startLocationUpdates()");

        pref = getApplicationContext().getSharedPreferences("MyPref", 0); // 0 - for private mode
        editor = pref.edit();

        locationRequest = LocationRequest.create()
                .setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY)
                .setInterval(UPDATE_INTERVAL)
                .setSmallestDisplacement(SMALLEST_DISPLACEMENT)
                .setFastestInterval(FASTEST_INTERVAL);


        if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.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(googleApiClient, locationRequest, (com.google.android.gms.location.LocationListener) this);

    }

    @Override
    public void onConnectionSuspended(int i) {

    }

    @Override
    public void onMarkerDragStart(Marker marker) {

    }

    @Override
    public void onMarkerDrag(Marker marker) {

    }

    @Override
    public void onMarkerDragEnd(Marker marker) {

    }

    @Override
    public void onMapLongClick(LatLng latLng) {

        mMap.clear();
        marker1 = null;
        marker2 = null;
        getCurrentLocation();

    }

    @Override
    protected void onStart() {
        googleApiClient.connect();
        super.onStart();
    }

    @Override
    protected void onStop() {
        googleApiClient.disconnect();
        super.onStop();
    }

    @Override
    public void onMapClick(LatLng latLng) {

    }

    @Override
    public void onLocationChanged(Location location) {
        Log.d("INFO", "onLocationChanged ["+location+"]");
        try {
            Geocoder geocoder = new Geocoder(this, Locale.getDefault());
            List<Address> addresses = null;
            addresses = geocoder.getFromLocation(location.getLatitude(), location.getLongitude(), 1);
            cityName = addresses.get(0).getAddressLine(0);
            stateName = addresses.get(0).getAddressLine(1);
            countryName = addresses.get(0).getAddressLine(2);
        } catch (IOException e) {
            e.printStackTrace();
        }

        LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
        mMap.addMarker(new MarkerOptions()
                .position(latLng)
                .draggable(true)
                .title(cityName))
                .showInfoWindow();

        points.add(latLng);
        redrawline();
        mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
        mMap.animateCamera(CameraUpdateFactory.zoomTo(15));
        mMap.getUiSettings().setZoomControlsEnabled(true);

        lastLocation = location;
        writeActualLocation(location);

    }

    private void redrawline() {
        mMap.clear();  //clears all Markers and Polylines

        PolylineOptions options = new PolylineOptions().width(5).color(Color.BLUE).geodesic(true);
        for (int i = 0; i < points.size(); i++) {
            LatLng point = points.get(i);
            options.add(point);
        }
       getCurrentLocation(); //add Marker in current position
        line = mMap.addPolyline(options); //add Polyline

    }

    // Write location coordinates on UI
    private void writeActualLocation(Location location) {
        Log.d( "Actual Lat: ", String.valueOf(location.getLatitude()));
        Log.d( "Actual Long: ", String.valueOf(location.getLongitude()));

        lat=location.getLatitude();
        lon=location.getLongitude();
        LatLng latLng=new LatLng(lat,lon);
        mMap.addMarker(new MarkerOptions()
        .position(latLng));


    }

    private void writeLastLocation() {
        writeActualLocation(lastLocation);
    }


    @Override
    public void onResult(@NonNull Status status) {
        Log.i("INFO", "onResult: " + status);
        if ( status.isSuccess() ) {
           System.out.println("Status Succes");
            Toast.makeText(getApplicationContext(),"Status Succes",Toast.LENGTH_LONG).show();
           // drawGeofence();
        } else {
            System.out.println("Status failed");
            Toast.makeText(getApplicationContext(),"Status Failed",Toast.LENGTH_LONG).show();
        }
    }

    /* Checks if external storage is available for read and write */
    public boolean isExternalStorageWritable() {
        String state = Environment.getExternalStorageState();
        if (Environment.MEDIA_MOUNTED.equals(state)) {
            return true;
        }
        return false;
    }

    /* Checks if external storage is available to at least read */
    public boolean isExternalStorageReadable() {
        String state = Environment.getExternalStorageState();
        if (Environment.MEDIA_MOUNTED.equals(state) ||
                Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) {
            return true;
        }
        return false;
    }





}
person Community    schedule 07.06.2017

Пользователь должен включить службу определения местоположения вручную. Вот код. Используйте следующий метод, чтобы включить службы определения местоположения. Также поместите разрешения манифеста

 public void checkLocationService() {
    LocationManager lm = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
    boolean gps_enabled = false;
    boolean network_enabled = false;

    try {
        gps_enabled = lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
    } catch (Exception ex) {
    }

    try {
        network_enabled = lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
    } catch (Exception ex) {
    }

    if (!gps_enabled && !network_enabled) {
        // notify user
        final AlertDialog.Builder dialog = new AlertDialog.Builder(this);
        dialog.setMessage("GPS Not Enabled");
        dialog.setCancelable(false);
        dialog.setPositiveButton("Set", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface paramDialogInterface, int paramInt) {
                // TODO Auto-generated method stub
                Intent myIntent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
                startActivity(myIntent);
                //get gps
            }
        });
        dialog.setNegativeButton("Skip", new DialogInterface.OnClickListener() {

            @Override
            public void onClick(DialogInterface paramDialogInterface, int paramInt) {
                // TODO Auto-generated method stub

            }
        });
        dialog.show();
    }
}

Разрешения:

<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"
 />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
person Kakumanu siva krishna    schedule 07.06.2017

поскольку ДжейДип Патель сослался на меня для ответа,

Я использовал fused google api, чтобы получить точное местоположение внутри моего метода onConnected(), как показано ниже: (получил успех :))

Пожалуйста. проверьте это: это действительно работает:

private void getLocation() {
    try {
        if (ActivityCompat.checkSelfPermission((Activity) mContext, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission((Activity) mContext, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            Constant.displayLogE(">> PErmission >> ", ">> not granted");
            return;
        } else {
            mLocationManager = (LocationManager) mContext
                    .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 {
                if (isNetworkEnabled) {
                    mLocationManager.requestLocationUpdates(
                            LocationManager.NETWORK_PROVIDER,
                            0,
                            0, this);
                    if (mLocationManager != null) {

                        mLocation = mLocationManager
                                .getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
                        if (mLocation != null) {
                            mCurrentLatitude = mLocation.getLatitude();
                            mCurrentLongitude = mLocation.getLongitude();
                            loadFilterListData();
                        } else {
                            mCurrentLatitude = mLastLocation.getLatitude();
                            mCurrentLongitude = mLastLocation.getLongitude();
                            loadFilterListData();
                        }
                    }
                } else if (isGPSEnabled) {
                    if (mLocation == null) {
                        mLocationManager.requestLocationUpdates(
                                LocationManager.GPS_PROVIDER,
                                0,
                                0, this);
                        if (mLocationManager != null) {
                            mLocation = mLocationManager
                                    .getLastKnownLocation(LocationManager.GPS_PROVIDER);
                            if (mLocation != null) {
                                mCurrentLatitude = mLocation.getLatitude();
                                mCurrentLongitude = mLocation.getLongitude();
                                loadFilterListData();
                            } else {
                                mCurrentLatitude = mLastLocation.getLatitude();
                                mCurrentLongitude = mLastLocation.getLongitude();
                                loadFilterListData();
                            }
                        }
                    }
                }
                if (mLastLocation == null) {
                    Constant.displayToast(mContext, "Location not fetched. Please, try again.");
                }
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

}

и ниже мой метод onConnected():

@Override
public void onConnected(@Nullable Bundle bundle) {
    if (ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(mContext, 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;
    }
    mLastLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
    if (mLastLocation != null) {
        // here we go you can see current lat long.
        Log.e(TAG, "onConnected: " + String.valueOf(mLastLocation.getLatitude()) + ":" + String.valueOf(mLastLocation.getLongitude()));
    }
}
person ZaptechDev Kumar    schedule 07.06.2017

Попробуйте этот код

import android.Manifest;
import android.app.AlertDialog;
import android.app.Service;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.IBinder;
import android.provider.Settings;
import android.support.v4.app.ActivityCompat;
import android.util.Log;
import android.widget.Toast;


public class GPSTracker extends Service implements LocationListener {

    private final Context mContext;

    // flag for GPS status
    boolean isGPSEnabled = false;

    // flag for network status
    boolean isNetworkEnabled = false;

    // flag for GPS status
    boolean canGetLocation = false;

    Location location; // location
    double latitude; // latitude
    double longitude; // longitude

    // The minimum distance to change Updates in meters
    private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 1; // 10 meters
    // The minimum time between updates in milliseconds
    private static final long MIN_TIME_BW_UPDATES = 1000 * 60; // 1 minute

    // Declaring a Location Manager
    protected LocationManager locationManager;

    public GPSTracker(Context context) {
        this.mContext = context;
        getLocation();
    }

    public Location getLocation() {
        try {
            locationManager = (LocationManager) mContext
                    .getSystemService(LOCATION_SERVICE);

            // getting GPS status
            isGPSEnabled = locationManager
                    .isProviderEnabled(LocationManager.GPS_PROVIDER);
            //Toast.makeText(mContext, "isGPSEnabled = "+isGPSEnabled, Toast.LENGTH_SHORT).show();
            // getting network status
            isNetworkEnabled = locationManager
                    .isProviderEnabled(LocationManager.NETWORK_PROVIDER);
//            Toast.makeText(mContext, "isNetworkEnabled = "+isNetworkEnabled, Toast.LENGTH_SHORT).show();

            if (!isGPSEnabled && !isNetworkEnabled) {
                // no network provider is enabled
                showSettingsAlert();
                Toast.makeText(mContext, "No Internet Connection", Toast.LENGTH_SHORT).show();
            } else {
                this.canGetLocation = true;
                // First get location from Network Provider
                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 = locationManager
                                .getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
                        if (location != null) {
                            Log.d("isNetworkEbanbled", "Network Available");
                            latitude = location.getLatitude();
                            longitude = location.getLongitude();
                        }
                    }
                }

                // if GPS Enabled get lat/long using GPS Services
                if (isGPSEnabled) {
                    if (location == null) {
                        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) ==
                                PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission
                                (this, Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED)
                        {
                            locationManager.requestLocationUpdates(
                                    LocationManager.GPS_PROVIDER,
                                    MIN_TIME_BW_UPDATES,
                                    MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
                            Log.d("GPS Enabled", "GPS is Enabled");
                            if (locationManager != null) {
                                location = locationManager
                                        .getLastKnownLocation(LocationManager.GPS_PROVIDER);
                                if (location != null) {
                                    Log.d("isGPSEnabled", "GPS");
                                    latitude = location.getLatitude();
                                    longitude = location.getLongitude();
                                }
                            }
                        }

                    }
                }

            }

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

        return location;
    }

    /**
     * Stop using GPS listener
     * Calling this function will stop using GPS in your app
     */
    public void stopUsingGPS() {
        if (locationManager != null) {
            if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
                    != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this,
                    Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
                return;
            }
            locationManager.removeUpdates(GPSTracker.this);
        }
    }

    /**
     * Function to get latitude
     */
    public double getLatitude() {
        if (location != null) {
            latitude = location.getLatitude();
        }

        // return latitude
        return latitude;
    }

    /**
     * Function to get longitude
     */
    public double getLongitude() {
        if (location != null) {
            longitude = location.getLongitude();
        }

        // return longitude
        return longitude;
    }

    /**
     * Function to check GPS/wifi enabled
     *
     * @return boolean
     */
    public boolean canGetLocation() {
        return this.canGetLocation;
    }

    /**
     * Function to show settings alert dialog
     * On pressing Settings button will lauch Settings Options
     */
    public void showSettingsAlert() {
        AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext);

        // Setting Dialog Title
        alertDialog.setTitle("GPS  settings");

        // Setting Dialog Message
        alertDialog.setMessage("GPS is not enabled. Go to Seeting and Please Enabled GPS");

        // On pressing Settings button
        alertDialog.setPositiveButton("Settings", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
                Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
                mContext.startActivity(intent);
            }
        });

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

        // Showing Alert Message
        alertDialog.show();
    }

    @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;
    }

}

Вызовите этот класс в свой MainActivity.java

GPSTracker gps = new GPSTracker(context);
person ND1010_    schedule 07.06.2017

Попробуйте GoogleApiClient, чтобы получить текущее местоположение пользователя

Образец кода:

Сначала вам нужно создать подключение к googleApiclient.

private synchronized void buildGoogleApiClient(){
    mGoogleApiClient = new GoogleApiClient.Builder(YourApplication.getContext())
            .addConnectionCallbacks(this)
            .addOnConnectionFailedListener(this)
            .addApi(LocationServices.API)
            .build();
    mGoogleApiClient.connect();
}

Запросить разрешение для Android 6.0 и более поздних версий

public void checkLocationPermission(){
    if(ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED){
        // You don't have the permission you need to request it 
        ActivityCompat.requestPermissions(this, Manifest.permission.ACCESS_FINE_LOCATION), REQ_CODE);
    }else{
        // You have the permission.
        requestLocationAccess();
    }
}

Затем реализуйте onRequestPermissionResult, чтобы проверить, предоставил ли пользователь разрешение или нет.

 @Override
    public void onRequestPermissionsResult(int requestCode,
                                           String permissions[], int[] grantResults) {
        switch (requestCode) {

            case REQUEST_LOCATION: {
                // If request is cancelled, the result arrays are empty.

                if (grantResults.length > 0
                        && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    requestLocationAccess();
                } else {


                        Snackbar.make(findViewById(android.R.id.content), "Please Allow to access to your Location",
                                Snackbar.LENGTH_LONG).setAction("Allow",
                                new View.OnClickListener() {
                                    @Override
                                    public void onClick(View v) {
                                        Intent intent = new Intent();
                                        intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
                                        intent.addCategory(Intent.CATEGORY_DEFAULT);
                                        intent.setData(Uri.parse("package:" + getPackageName()));

                                        startActivity(intent);

                                    }
                                }).show();

                }
                return;
            }

            // other 'case' lines to check for other
            // permissions this app might request
        }
    }

Создайте метод requestLocationAccess, где вы получите доступ к местоположению

  public void requestLocationAccess(){
        LocationRequest mLocationRequest = new LocationRequest();
        mLocationRequest.setInterval((long) (LocationHelper.UPDATE_INTERVAL_IN_MILLISECONDS*1.1));
        mLocationRequest.setFastestInterval(LocationHelper.UPDATE_INTERVAL_IN_MILLISECONDS);
        mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
        final LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder().addLocationRequest(mLocationRequest);
        builder.setAlwaysShow(true); //this is the key ingredient
        com.google.android.gms.common.api.PendingResult<LocationSettingsResult> result =
                    LocationServices.SettingsApi.checkLocationSettings(mGoogleApiClient, builder.build());
        result.setResultCallback(new ResultCallback<LocationSettingsResult>(){
            @Override
            public void onResult(@NonNull LocationSettingsResult result){
                if(requester != null){
                    final Status resultStatus = result.getStatus();
                    switch(resultStatus.getStatusCode()){
                        case LocationSettingsStatusCodes.SUCCESS:
                            PendingResult<Status> pendingResult = LocationServices.FusedLocationApi.requestLocationUpdates(
                                        googleApiClient, locationRequest, YourActivity.this);



                            break;
                        case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
                            // Location settings are not satisfied. But could be fixed by showing the user a dialog.
ActivityCompat.requestPermissions(YourActivity.this, new String[]{ACCESS_FINE_LOCATION}, REQUEST_LOCATION);
                            try{
                                resultStatus.startResolutionForResult(this, REQUEST_LOCATION);
                                break;
                            }catch(IntentSender.SendIntentException ignored){}
                        }
                    }
                }
            }
        });  
    }

Затем реализуйте обратный вызов GoogleApliClient onConnected, где вы можете просто получить местоположение пользователя.

 @Override
    public void onConnected(@Nullable Bundle bundle) {

        if (ContextCompat
                .checkSelfPermission(this,
                        ACCESS_FINE_LOCATION)== PackageManager.PERMISSION_GRANTED) {
            location = LocationServices.FusedLocationApi.getLastLocation(
                    googleApiClient);

        }
    }
person Ghanshyam Sharma    schedule 07.06.2017
comment
Этот код работает для меня. Дайте мне знать, если у вас возникнут проблемы @ZaptechDev Kumar - person Ghanshyam Sharma; 07.06.2017