Bagaimana cara mendapatkan lokasi GPS saat ini secara terprogram di Android?

Saya perlu mendapatkan lokasi saya saat ini menggunakan GPS secara terprogram. Bagaimana saya bisa mencapainya?

Saya telah membuat aplikasi kecil dengan deskripsi langkah demi langkah untuk mendapatkan koordinat GPS lokasi saat ini.

Contoh lengkap kode sumber ada di koordinat Get Current Location, Nama kota - di Android .

Lihat cara kerjanya:

• Yang perlu kita lakukan adalah menambahkan izin ini di file manifes:

  <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

• Dan buat instance LocationManager seperti ini:

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

• Periksa apakah GPS diaktifkan atau tidak.

• Dan kemudian laksanakan LocationListener dan dapatkan koordinat:

  LocationListener locationListener = new MyLocationListener();
  locationManager.requestLocationUpdates(
  LocationManager.GPS_PROVIDER, 5000, 10, locationListener);

• Berikut adalah contoh kode untuk melakukannya

/*---------- Listener class to get coordinates ------------- */
private class MyLocationListener implements LocationListener {

    @Override
    public void onLocationChanged(Location loc) {
        editLocation.setText("");
        pb.setVisibility(View.INVISIBLE);
        Toast.makeText(
                getBaseContext(),
                "Location changed: Lat: " + loc.getLatitude() + " Lng: "
                    + loc.getLongitude(), Toast.LENGTH_SHORT).show();
        String longitude = "Longitude: " + loc.getLongitude();
        Log.v(TAG, longitude);
        String latitude = "Latitude: " + loc.getLatitude();
        Log.v(TAG, latitude);

        /*------- To get city name from coordinates -------- */
        String cityName = null;
        Geocoder gcd = new Geocoder(getBaseContext(), Locale.getDefault());
        List<Address> addresses;
        try {
            addresses = gcd.getFromLocation(loc.getLatitude(),
                    loc.getLongitude(), 1);
            if (addresses.size() > 0) {
                System.out.println(addresses.get(0).getLocality());
                cityName = addresses.get(0).getLocality();
            }
        }
        catch (IOException e) {
            e.printStackTrace();
        }
        String s = longitude + "\n" + latitude + "\n\nMy Current City is: "
            + cityName;
        editLocation.setText(s);
    }

    @Override
    public void onProviderDisabled(String provider) {}

    @Override
    public void onProviderEnabled(String provider) {}

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

Berikut ini informasi tambahan untuk jawaban lain.

Sejak Android

GPS_PROVIDER and NETWORK_PROVIDER

Anda dapat mendaftar untuk keduanya dan mulai mengambil acara onLocationChanged(Location location)dari dua sekaligus. Sejauh ini bagus. Sekarang pertanyaannya apakah kita memerlukan dua hasil atau kita harus mengambil yang terbaik. Seperti yang saya tahu GPS_PROVIDERhasilnya lebih akurat daripada NETWORK_PROVIDER.

Mari kita mendefinisikan Locationbidang:

private Location currentBestLocation = null;

Sebelum kita mulai mendengarkan perubahan Lokasi, kita akan menerapkan metode berikut. Metode ini mengembalikan lokasi terakhir yang diketahui, antara GPS dan jaringan. Untuk metode ini yang lebih baru adalah yang terbaik.

/**
 * @return the last know best location
 */
private Location getLastBestLocation() {
    Location locationGPS = mLocationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
    Location locationNet = mLocationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);

    long GPSLocationTime = 0;
    if (null != locationGPS) { GPSLocationTime = locationGPS.getTime(); }

    long NetLocationTime = 0;

    if (null != locationNet) {
        NetLocationTime = locationNet.getTime();
    }

    if ( 0 < GPSLocationTime - NetLocationTime ) {
        return locationGPS;
    }
    else {
        return locationNet;
    }
}

Setiap kali kami mengambil lokasi baru, kami akan membandingkannya dengan hasil kami sebelumnya.

...
static final int TWO_MINUTES = 1000 * 60 * 2;
...

Saya menambahkan metode baru ke onLocationChanged:

@Override
public void onLocationChanged(Location location) {

    makeUseOfNewLocation(location);

    if(currentBestLocation == null){
        currentBestLocation = location;
    }

    ....
}


/**
 * This method modify the last know good location according to the arguments.
 *
 * @param location The possible new location.
 */
void makeUseOfNewLocation(Location location) {
    if ( isBetterLocation(location, currentBestLocation) ) {
        currentBestLocation = location;
    }
}

....

/** Determines whether one location reading is better than the current location fix
 * @param location  The new location that you want to evaluate
 * @param currentBestLocation  The current location fix, to which you want to compare the new one.
 */
protected 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 > TWO_MINUTES;
    boolean isSignificantlyOlder = timeDelta < -TWO_MINUTES;
    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;
}

// Checks whether two providers are the same
private boolean isSameProvider(String provider1, String provider2) {
    if (provider1 == null) {
        return provider2 == null;
    }
    return provider1.equals(provider2);
}

....

Anda dapat menemukan lokasi dengan GPS_PROVIDER or NETWORK_PROVIDER.

Gambaran umum layanan lokasi di Android.

Berikut adalah salah satu contoh yang mencoba mencari lokasi menggunakan GPS. Jika GPS Anda tidak tersedia maka cobalah menggunakan jaringan untuk menemukan lokasi.

GPSTracker.java

 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 = 10; // 10 meters

    // The minimum time between updates in milliseconds
    private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1; // 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);

            // Getting network status
            isNetworkEnabled = locationManager
                    .isProviderEnabled(LocationManager.NETWORK_PROVIDER);

            if (!isGPSEnabled && !isNetworkEnabled) {
                // No network provider is enabled
            } else {
                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 = locationManager
                                .getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
                        if (location != null) {
                            latitude = location.getLatitude();
                            longitude = location.getLongitude();
                        }
                    }
                }
                // If GPS enabled, get latitude/longitude using GPS Services
                if (isGPSEnabled) {
                    if (location == 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 = locationManager
                                    .getLastKnownLocation(LocationManager.GPS_PROVIDER);
                            if (location != null) {
                                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){
            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/Wi-Fi enabled
     * @return boolean
     * */
    public boolean canGetLocation() {
        return this.canGetLocation;
    }


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

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

        // Setting Dialog Message
        alertDialog.setMessage("GPS is not enabled. Do you want to go to settings menu?");

        // On pressing the 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 the 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;
    }
}

Activity -AndroidGPSTrackingActivity.java

    public class AndroidGPSTrackingActivity extends Activity {

    Button btnShowLocation;

    // GPSTracker class
    GPSTracker gps;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        btnShowLocation = (Button) findViewById(R.id.btnShowLocation);

        // Show location button click event
        btnShowLocation.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // Create class object
                gps = new GPSTracker(AndroidGPSTrackingActivity.this);

                // Check if GPS enabled
                if(gps.canGetLocation()) {

                    double latitude = gps.getLatitude();
                    double longitude = gps.getLongitude();

                    // \n is for new line
                    Toast.makeText(getApplicationContext(), "Your Location is - \nLat: " + latitude + "\nLong: " + longitude, Toast.LENGTH_LONG).show();
                } else {
                    // Can't get location.
                    // GPS or network is not enabled.
                    // Ask user to enable GPS/network in settings.
                    gps.showSettingsAlert();
                }
            }
        });
    }
}

Layout- main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <Button android:id="@+id/btnShowLocation"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Show Location"
        android:layout_centerVertical="true"
        android:layout_centerHorizontal="true"/>
</RelativeLayout>

AndroidManifest.xml

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />

Sudah ada banyak jawaban di sana tetapi saya ingin menunjukkan cara terbaru untuk mendapatkan lokasi menggunakan Google API, sehingga pemrogram baru dapat menggunakan metode baru:

Saya telah menulis tutorial terperinci tentang lokasi saat ini di android di blog saya demonuts.com Anda juga dapat menemukan kode sumber lengkap yang dikembangkan dengan android studio.

Pertama-tama, letakkan ini di file gradle

 compile 'com.google.android.gms:play-services:9.0.2'

kemudian mengimplementasikan antarmuka yang diperlukan

public class MainActivity  extends BaseActivitiy implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, com.google.android.gms.location.LocationListener

nyatakan contoh

  private GoogleApiClient mGoogleApiClient;
  private Location mLocation;
  private LocationManager locationManager;
  private LocationRequest mLocationRequest;

letakkan ini onCreate()

 mGoogleApiClient = new GoogleApiClient.Builder(this)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .addApi(LocationServices.API)
                .build();
        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

Akhirnya, ganti metode yang diperlukan

 @Override
    public void onConnected(Bundle bundle) {
        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;
        } startLocationUpdates();
        mLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
        if(mLocation == null){
            startLocationUpdates();
        }
        if (mLocation != null) {
            double latitude = mLocation.getLatitude();
            double longitude = mLocation.getLongitude();
        } else {
            // Toast.makeText(this, "Location not Detected", Toast.LENGTH_SHORT).show();
        }
    }

    protected void startLocationUpdates() {
        // Create the location request
        mLocationRequest = LocationRequest.create()
                .setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY)
                .setInterval(UPDATE_INTERVAL)
                .setFastestInterval(FASTEST_INTERVAL);
        // Request location updates
        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.d("reque", "--->>>>");
    }

    @Override
    public void onConnectionSuspended(int i) {
        Log.i(TAG, "Connection Suspended");
        mGoogleApiClient.connect();
    }

    @Override
    public void onConnectionFailed(ConnectionResult connectionResult) {
        Log.i(TAG, "Connection failed. Error: " + connectionResult.getErrorCode());
    }

    @Override
    public void onStart() {
        super.onStart();
        mGoogleApiClient.connect();
    }

    @Override
    public void onStop() {
        super.onStop();
        if (mGoogleApiClient.isConnected()) {
            mGoogleApiClient.disconnect();
        }
    }
    @Override
    public void onLocationChanged(Location location) {

    }

Jangan lupa untuk memulai GPS di perangkat Anda sebelum menjalankan aplikasi.

Karena saya tidak suka beberapa kode di jawaban lain, inilah solusi sederhana saya. Solusi ini dimaksudkan untuk dapat digunakan dalam Kegiatan atau Layanan untuk melacak lokasi. Itu memastikan bahwa itu tidak pernah mengembalikan data yang terlalu basi kecuali Anda secara eksplisit meminta data basi. Itu dapat dijalankan dalam mode panggilan balik untuk mendapatkan pembaruan saat kami menerimanya, atau dalam mode polling untuk polling untuk info terbaru.

Antarmuka LocationTracker generik. Memungkinkan kami memiliki beberapa jenis pelacak lokasi dan memasukkan yang sesuai dengan mudah:

package com.gabesechan.android.reusable.location;

import android.location.Location;

public interface LocationTracker {
    public interface LocationUpdateListener{
        public void onUpdate(Location oldLoc, long oldTime, Location newLoc, long newTime);
    }

    public void start();
    public void start(LocationUpdateListener update);

    public void stop();

    public boolean hasLocation();

    public boolean hasPossiblyStaleLocation();

    public Location getLocation();

    public Location getPossiblyStaleLocation();

}

ProviderLocationTracker- kelas ini akan melacak lokasi untuk GPS atau NETWORK.

package com.gabesechan.android.reusable.location;

import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;

public class ProviderLocationTracker implements LocationListener, LocationTracker {

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

    // The minimum time between updates in milliseconds
    private static final long MIN_UPDATE_TIME = 1000 * 60; 

    private LocationManager lm;

    public enum ProviderType{
        NETWORK,
        GPS
    };    
    private String provider;

    private Location lastLocation;
    private long lastTime;

    private boolean isRunning;

    private LocationUpdateListener listener;

    public ProviderLocationTracker(Context context, ProviderType type) {
        lm = (LocationManager)context.getSystemService(Context.LOCATION_SERVICE);
        if(type == ProviderType.NETWORK){
            provider = LocationManager.NETWORK_PROVIDER;
        }
        else{
            provider = LocationManager.GPS_PROVIDER;
        }
    }

    public void start(){
        if(isRunning){
            //Already running, do nothing
            return;
        }

        //The provider is on, so start getting updates.  Update current location
        isRunning = true;
        lm.requestLocationUpdates(provider, MIN_UPDATE_TIME, MIN_UPDATE_DISTANCE, this);
        lastLocation = null;
        lastTime = 0;
        return;
    }

    public void start(LocationUpdateListener update) {
        start();
        listener = update;

    }


    public void stop(){
        if(isRunning){
            lm.removeUpdates(this);
            isRunning = false;
            listener = null;
        }
    }

    public boolean hasLocation(){
        if(lastLocation == null){
            return false;
        }
        if(System.currentTimeMillis() - lastTime > 5 * MIN_UPDATE_TIME){
            return false; //stale
        }
        return true;
    }

    public boolean hasPossiblyStaleLocation(){
        if(lastLocation != null){
            return true;
        }
        return lm.getLastKnownLocation(provider)!= null;
    }

    public Location getLocation(){
        if(lastLocation == null){
            return null;
        }
        if(System.currentTimeMillis() - lastTime > 5 * MIN_UPDATE_TIME){
            return null; //stale
        }
        return lastLocation;
    }

    public Location getPossiblyStaleLocation(){
        if(lastLocation != null){
            return lastLocation;
        }
        return lm.getLastKnownLocation(provider);
    }

    public void onLocationChanged(Location newLoc) {
        long now = System.currentTimeMillis();
        if(listener != null){
            listener.onUpdate(lastLocation, lastTime, newLoc, now);
        }
        lastLocation = newLoc;
        lastTime = now;
    }

    public void onProviderDisabled(String arg0) {

    }

    public void onProviderEnabled(String arg0) {

    }

    public void onStatusChanged(String arg0, int arg1, Bundle arg2) {
    }
}

Ini adalah FallbackLocationTracker, yang akan melacak dengan GPS dan NETWORK, dan menggunakan lokasi apa pun yang lebih akurat.

package com.gabesechan.android.reusable.location;

import android.content.Context;
import android.location.Location;
import android.location.LocationManager;

public class FallbackLocationTracker  implements LocationTracker, LocationTracker.LocationUpdateListener {


    private boolean isRunning;

    private ProviderLocationTracker gps;
    private ProviderLocationTracker net;

    private LocationUpdateListener listener;

    Location lastLoc;
    long lastTime;

    public FallbackLocationTracker(Context context) {
        gps = new ProviderLocationTracker(context, ProviderLocationTracker.ProviderType.GPS);
        net = new ProviderLocationTracker(context, ProviderLocationTracker.ProviderType.NETWORK);
    }

    public void start(){
        if(isRunning){
            //Already running, do nothing
            return;
        }

        //Start both
        gps.start(this);
        net.start(this);
        isRunning = true;
    }

    public void start(LocationUpdateListener update) {
        start();
        listener = update;
    }


    public void stop(){
        if(isRunning){
            gps.stop();
            net.stop();
            isRunning = false;
            listener = null;
        }
    }

    public boolean hasLocation(){
        //If either has a location, use it
        return gps.hasLocation() || net.hasLocation();
    }

    public boolean hasPossiblyStaleLocation(){
        //If either has a location, use it
        return gps.hasPossiblyStaleLocation() || net.hasPossiblyStaleLocation();
    }

    public Location getLocation(){
        Location ret = gps.getLocation();
        if(ret == null){
            ret = net.getLocation();
        }
        return ret;
    }

    public Location getPossiblyStaleLocation(){
        Location ret = gps.getPossiblyStaleLocation();
        if(ret == null){
            ret = net.getPossiblyStaleLocation();
        }
        return ret;
    }

    public void onUpdate(Location oldLoc, long oldTime, Location newLoc, long newTime) {
        boolean update = false;

        //We should update only if there is no last location, the provider is the same, or the provider is more accurate, or the old location is stale
        if(lastLoc == null){
            update = true;
        }
        else if(lastLoc != null && lastLoc.getProvider().equals(newLoc.getProvider())){
            update = true;
        }
        else if(newLoc.getProvider().equals(LocationManager.GPS_PROVIDER)){
            update = true;
        }
        else if (newTime - lastTime > 5 * 60 * 1000){
            update = true;
        }

        if(update){
            if(listener != null){
                listener.onUpdate(lastLoc, lastTime, newLoc, newTime);                  
            }
            lastLoc = newLoc;
            lastTime = newTime;
        }

    }
}

Karena keduanya mengimplementasikan antarmuka LocationTracker, Anda dapat dengan mudah mengubah pikiran tentang mana yang akan digunakan. Untuk menjalankan kelas dalam mode polling, panggil saja start (). Untuk menjalankannya dalam mode pembaruan, panggil start (Listener).

Lihat juga posting blog saya pada kode

Dapatkan lokasi gps dengan -

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

LocationListener locationListener = new LocationListener() 
{

            @Override
            public void onStatusChanged(String provider, int status, Bundle extras) {
                // TODO Auto-generated method stub

            }

            @Override
            public void onProviderEnabled(String provider) {
                // TODO Auto-generated method stub

            }

            @Override
            public void onProviderDisabled(String provider) {
                // TODO Auto-generated method stub

            }

            @Override
            public void onLocationChanged(Location location) {
                // TODO Auto-generated method stub
                double latitude = location.getLatitude();
                double longitude = location.getLongitude();
                double speed = location.getSpeed(); //spedd in meter/minute
                speed = (speed*3600)/1000;      // speed in km/minute               Toast.makeText(GraphViews.this, "Current speed:" + location.getSpeed(),Toast.LENGTH_SHORT).show();
            }
        };

        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener);

}

Anda harus menggunakan yang terbaru / terbaru

GoogleApiClient Api

Pada dasarnya yang perlu Anda lakukan adalah:

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

Kemudian

@Override
    public void onConnected(Bundle connectionHint) {
        mLastLocation = LocationServices.FusedLocationApi.getLastLocation(
                mGoogleApiClient);
        if (mLastLocation != null) {
            mLatitudeText.setText(String.valueOf(mLastLocation.getLatitude()));
            mLongitudeText.setText(String.valueOf(mLastLocation.getLongitude()));
        }
    }

untuk lokasi yang paling akurat dan andal. Lihat posting saya di sini:

https://stackoverflow.com/a/33599228/2644905

Jangan gunakan LocationListener yang tidak akurat dan responsnya tertunda. Sejujurnya ini lebih mudah diterapkan. Baca juga dokumentasi: https://developers.google.com/android/reference/com/google/android/gms/common/api/GoogleApiClient

class MyLocation {
    Timer timer1;
    LocationManager lm;
    LocationResult locationResult;
    boolean gps_enabled = false;
    boolean network_enabled = false;

    public boolean getLocation(Context context, LocationResult result) {
        // I use LocationResult callback class to pass location value from
        // MyLocation to user code.
        locationResult = result;
        if (lm == null)
            lm = (LocationManager) context
                    .getSystemService(Context.LOCATION_SERVICE);

        // Exceptions will be thrown if the provider is not permitted.
        try {
            gps_enabled = lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
        }
        catch (Exception ex) {
        }
        try {
            network_enabled = lm
                    .isProviderEnabled(LocationManager.NETWORK_PROVIDER);
        }
        catch (Exception ex) {
        }

        // Don't start listeners if no provider is enabled.
        if (!gps_enabled && !network_enabled)
            return false;

        if (gps_enabled)
            lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0,
                    locationListenerGps);
        if (network_enabled)
            lm.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0,
                    locationListenerNetwork);
        timer1 = new Timer();
        timer1.schedule(new GetLastLocation(), 5000);
        return true;
    }

    LocationListener locationListenerGps = new LocationListener() {
        public void onLocationChanged(Location location) {
            timer1.cancel();
            locationResult.gotLocation(location);
            lm.removeUpdates(this);
            lm.removeUpdates(locationListenerNetwork);
        }

        public void onProviderDisabled(String provider) {
        }

        public void onProviderEnabled(String provider) {
        }

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

    LocationListener locationListenerNetwork = new LocationListener() {
        public void onLocationChanged(Location location) {
            timer1.cancel();
            locationResult.gotLocation(location);
            lm.removeUpdates(this);
            lm.removeUpdates(locationListenerGps);
        }

        public void onProviderDisabled(String provider) {
        }

        public void onProviderEnabled(String provider) {
        }

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

    class GetLastLocation extends TimerTask {
        @Override
        public void run() {
            lm.removeUpdates(locationListenerGps);
            lm.removeUpdates(locationListenerNetwork);

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

            // If there are both values, use the latest one.
            if (gps_loc != null && net_loc != null) {
                if (gps_loc.getTime() > net_loc.getTime())
                    locationResult.gotLocation(gps_loc);
                else
                    locationResult.gotLocation(net_loc);
                return;
            }

            if (gps_loc != null) {
                locationResult.gotLocation(gps_loc);
                return;
            }
            if (net_loc != null) {
                locationResult.gotLocation(net_loc);
                return;
            }
            locationResult.gotLocation(null);
        }
    }

    public static abstract class LocationResult {
        public abstract void gotLocation(Location location);
    }
}

Saya harap ini akan membantu Anda ...

Sekarang karena layanan lokasi Google Play ada di sini, saya sarankan agar pengembang mulai menggunakan penyedia lokasi yang menyatu baru. Anda akan merasa lebih mudah digunakan dan lebih akurat. Silakan tonton video Google I / O Beyond the Blue Dot: Fitur Baru di Android Location oleh dua orang yang membuat API layanan lokasi Google Play yang baru.

Saya telah bekerja dengan API lokasi di sejumlah platform seluler, dan saya pikir apa yang telah dilakukan kedua orang ini benar-benar revolusioner. Ini telah menyingkirkan sejumlah besar kompleksitas menggunakan berbagai penyedia. Stack Overflow dipenuhi dengan pertanyaan tentang penyedia mana yang akan digunakan, apakah akan menggunakan lokasi yang diketahui terakhir, cara mengatur properti lain di LocationManager, dll. API baru yang mereka buat ini menghapus sebagian besar dari ketidakpastian itu dan membuat layanan lokasi menjadi menyenangkan untuk menggunakan.

Saya telah menulis aplikasi Android yang secara berkala mendapatkan lokasi menggunakan layanan lokasi Google Play dan mengirimkan lokasi ke server web di mana ia disimpan dalam database dan dapat dilihat di Google Maps . Saya telah menulis perangkat lunak klien (untuk Android, iOS, Windows Phone dan Java ME ) dan perangkat lunak server (untuk ASP.NET dan SQL Server atau PHP dan MySQL ). Perangkat lunak ini ditulis dalam bahasa asli di setiap platform dan berfungsi dengan baik di latar belakang masing-masing. Terakhir, perangkat lunak tersebut memiliki Lisensi MIT . Anda dapat menemukan klien Android di sini:

https://github.com/nickfox/GpsTracker/tree/master/phoneClients/android

Sederhana dapat Anda temukan

   package com.javapapers.android.geolocationfinder;

    import android.os.Bundle;
    import android.app.Activity;
    import android.content.Context;
    import android.location.Location;
    import android.location.LocationListener;
    import android.location.LocationManager;
    import android.widget.TextView;

    import android.util.Log;

    public class MainActivity extends Activity implements LocationListener{
    protected LocationManager locationManager;
    protected LocationListener locationListener;
    protected Context context;
    TextView txtLat;
    String lat;
    String provider;
    protected String latitude,longitude; 
    protected boolean gps_enabled,network_enabled;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    txtLat = (TextView) findViewById(R.id.textview1);

    locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
    locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, this);
    }
    @Override
    public void onLocationChanged(Location location) {
    txtLat = (TextView) findViewById(R.id.textview1);
    txtLat.setText("Latitude:" + location.getLatitude() + ", Longitude:" + location.getLongitude());
    }

    @Override
    public void onProviderDisabled(String provider) {
    Log.d("Latitude","disable");
    }

    @Override
    public void onProviderEnabled(String provider) {
    Log.d("Latitude","enable");
    }

    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {
    Log.d("Latitude","status");
    }
    }

LocationManager adalah kelas yang menyediakan metode built-in untuk mendapatkan lokasi tahu terakhir

LANGKAH 1: Buat Obyek LocationManager seperti di bawah ini

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

LANGKAH 2: Tambahkan Kriteria

*Criteria is use for setting accuracy*

Criteria criteria = new Criteria();
int currentapiVersion = android.os.Build.VERSION.SDK_INT;

if (currentapiVersion >= android.os.Build.VERSION_CODES.HONEYCOMB) {

    criteria.setSpeedAccuracy(Criteria.ACCURACY_HIGH);
    criteria.setAccuracy(Criteria.ACCURACY_FINE);
    criteria.setAltitudeRequired(true);
    criteria.setBearingRequired(true);
    criteria.setSpeedRequired(true);

}

LANGKAH 3: DAPATKAN Penyedia yang Tersedia

Threre adalah dua jenis penyedia GPS dan jaringan

 String provider = locationManager.getBestProvider(criteria, true);

LANGKAH 4: Dapatkan Lokasi Tahu Terakhir

Location location = locationManager.getLastKnownLocation(provider);

LANGKAH 5: Dapatkan Latitude dan Longitude

Jika objek lokasi adalah nol maka jangan mencoba untuk memanggil metode di bawah ini

getLatitude and getLongitude is methods which returns double values

Mendapatkan pembaruan lokasi memerlukan banyak kode pirierplate di Android, Anda harus berhati-hati

• Layanan Google Play ketersediaan Periksa,
• Perbarui Layanan Google play jika sudah lama atau tidak tersedia
• Pembuatan Dialog GoogleApiClient dan panggilan baliknya terhubung, terputus, dll.
• Menghentikan dan melepaskan sumber daya untuk pembaruan lokasi
• Menangani skenario izin Lokasi
• Memeriksa Layanan Lokasi Hidup atau Mati
• Mendapatkan lokasi yang diketahui terakhir juga tidak mudah
• Kembali ke lokasi yang terakhir diketahui jika tidak mendapatkan lokasi setelah durasi tertentu

Untuk mempermudah semua langkah ini saya telah membuat Android-EasyLocation (perpustakaan android kecil) yang akan mengurus semua hal ini dan Anda dapat fokus pada logika bisnis.

Yang Anda butuhkan adalah memperpanjang EasyLocationActivity dan ini

requestSingleLocationFix(easyLocationRequest);

atau

requestLocationUpdates(easyLocationRequest);

Periksa contoh aplikasi dan langkah-langkah yang diperlukan di sini di https://github.com/akhgupta/Android-EasyLocation

Saya telah membuat proyek dari mana kita bisa mendapatkan lokasi yang akurat menggunakan Google Play Services, GPS, dan penyedia Jaringan. Proyek ini dapat ditemukan di sini .

Strategi dalam menemukan lokasi terbaik adalah yang pertama mendapatkan lokasi dari layanan google play jika lokasi ditemukan kemudian memeriksa cuaca lebih baik atau tidak, jika lokasi yang ditemukan adalah nol memulai kembali layanan google play dan mencoba untuk mengambil lokasi dari Android Location API. Daftarkan lokasi pada perubahan pendengar dan kapan pun lokasi yang lebih baik ditemukan, panggilan balik mengembalikannya ke aktivitas utama.

Sangat mudah untuk menggunakan dan mengimplementasikan dalam kode hanya dua kelas yang perlu kita embed yaitu LocationManagerInterfacedan SmartLocationManager, LocationActivitymengimplementasikan antarmuka dan menggunakan SmartLocationManager untuk mengambil lokasi.

/**
 * Created by Syed Raza Mehdi Naqvi on 8/10/2016.
 */
public interface LocationManagerInterface {
    String TAG = LocationManagerInterface.class.getSimpleName();

    void locationFetched(Location mLocation, Location oldLocation, String time, String locationProvider);

}

di sini adalah kelas manajer lokasi

import android.Manifest;
import android.app.Activity;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentSender;
import android.content.pm.PackageManager;
import android.location.Location;
import android.location.LocationManager;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AlertDialog;
import android.util.Log;
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.location.LocationListener;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationServices;

import java.text.DateFormat;
import java.util.Date;

/**
 * Created by Syed Raza Mehdi Naqvi on 8/9/2016.
 */
public class SmartLocationManager implements
        GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, LocationListener {

    private static final String TAG = SmartLocationManager.class.getSimpleName();

    private static final int TWO_MINUTES = 1000 * 60 * 2;
    private static final int PERMISSION_REQUEST_CODE = 1000;
    private static final int CONNECTION_FAILURE_RESOLUTION_REQUEST = 9000;

    // default value is false but user can change it
    private String mLastLocationUpdateTime;                                                         // fetched location time
    private String locationProvider;                                                                // source of fetched location

    private Location mLastLocationFetched;                                                          // location fetched
    private Location mLocationFetched;                                                              // location fetched
    private Location networkLocation;
    private Location gpsLocation;

    private int mLocationPiority;
    private long mLocationFetchInterval;
    private long mFastestLocationFetchInterval;

    private Context mContext;                                                                       // application context
    private Activity mActivity;                                                                     // activity context
    private LocationRequest mLocationRequest;
    private GoogleApiClient mGoogleApiClient;
    private LocationManagerInterface mLocationManagerInterface;

    private android.location.LocationManager locationManager;
    private android.location.LocationListener locationListener;

    boolean isGPSEnabled;
    boolean isNetworkEnabled;

    private int mProviderType;
    public static final int NETWORK_PROVIDER = 1;
    public static final int ALL_PROVIDERS = 0;
    public static final int GPS_PROVIDER = 2;

//    private final double STANDARD_LOCATION_ACCURACY = 100.0;
//    private final double STANDARD_LOCATION_SEED_LIMIT = 6.95;

    public static final int LOCATION_PROVIDER_ALL_RESTICTION = 1;
    public static final int LOCATION_PROVIDER_RESTRICTION_NONE = 0;
    public static final int LOCATION_PROVIDER_GPS_ONLY_RESTICTION = 2;
    public static final int LOCATION_PROVIDER_NETWORK_ONLY_RESTICTION = 3;
    private int mForceNetworkProviders = 0;

    public SmartLocationManager(Context context, Activity activity, LocationManagerInterface locationInterface, int providerType, int locationPiority, long locationFetchInterval, long fastestLocationFetchInterval, int forceNetworkProviders) {
        mContext = context;
        mActivity = activity;
        mProviderType = providerType;

        mLocationPiority = locationPiority;
        mForceNetworkProviders = forceNetworkProviders;
        mLocationFetchInterval = locationFetchInterval;
        mFastestLocationFetchInterval = fastestLocationFetchInterval;

        mLocationManagerInterface = locationInterface;

        initSmartLocationManager();
    }


    public void initSmartLocationManager() {

        // 1) ask for permission for Android 6 above to avoid crash
        // 2) check if gps is available
        // 3) get location using awesome strategy

        askLocationPermission();                            // for android version 6 above
        checkNetworkProviderEnable(mForceNetworkProviders);                       //

        if (isGooglePlayServicesAvailable())                // if googleplay services available
            initLocationObjts();                            // init obj for google play service and start fetching location
        else
            getLocationUsingAndroidAPI();                   // otherwise get location using Android API
    }

    private void initLocationObjts() {
        // Create the LocationRequest object
        mLocationRequest = LocationRequest.create()
                .setPriority(mLocationPiority)
                .setInterval(mLocationFetchInterval)                    // 10 seconds, in milliseconds
                .setFastestInterval(mFastestLocationFetchInterval);     // 1 second, in milliseconds

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

        startLocationFetching();                                        // connect google play services to fetch location
    }

    @Override
    public void onConnected(Bundle connectionHint) {
        Location location = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
        startLocationUpdates();
        if (location == null) {
            LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
            getLocationUsingAndroidAPI();
        } else {
            setNewLocation(getBetterLocation(location, mLocationFetched), mLocationFetched);
        }
    }

    @Override
    public void onLocationChanged(Location location) {
        if (location == null) {
            getLastKnownLocation();
        } else {
            setNewLocation(getBetterLocation(location, mLocationFetched), mLocationFetched);
        }
    }

    @Override
    public void onConnectionSuspended(int i) {
        Log.i(TAG, "Connection suspended");
    }

    @Override
    public void onConnectionFailed(ConnectionResult connectionResult) {
        if (connectionResult.hasResolution()) {
            try {
                connectionResult.startResolutionForResult(mActivity, CONNECTION_FAILURE_RESOLUTION_REQUEST); // Start an Activity that tries to resolve the error
                getLocationUsingAndroidAPI();                                                                // try to get location using Android API locationManager
            } catch (IntentSender.SendIntentException e) {
                e.printStackTrace();
            }
        } else {
            Log.i(TAG, "Location services connection failed with code " + connectionResult.getErrorCode());
        }
    }

    private void setNewLocation(Location location, Location oldLocation) {
        if (location != null) {
            mLastLocationFetched = oldLocation;
            mLocationFetched = location;
            mLastLocationUpdateTime = DateFormat.getTimeInstance().format(new Date());
            locationProvider = location.getProvider();
            mLocationManagerInterface.locationFetched(location, mLastLocationFetched, mLastLocationUpdateTime, location.getProvider());
        }
    }

    private void getLocationUsingAndroidAPI() {
        // Acquire a reference to the system Location Manager
        locationManager = (LocationManager) mContext.getSystemService(Context.LOCATION_SERVICE);

        setLocationListner();
        captureLocation();
    }

    public void captureLocation() {
        if (Build.VERSION.SDK_INT >= 23 &&
                ContextCompat.checkSelfPermission(mContext, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
                ContextCompat.checkSelfPermission(mContext, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            return;
        }
        try {
            if (mProviderType == SmartLocationManager.GPS_PROVIDER) {
                locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener);
            } else if (mProviderType == SmartLocationManager.NETWORK_PROVIDER) {
                locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListener);
            } else {
                locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListener);
                locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener);
            }
        } catch (Exception e) {
            Log.e(TAG, e.getMessage());
        }
    }

    private void setLocationListner() {
        // Define a listener that responds to location updates
        locationListener = new android.location.LocationListener() {
            public void onLocationChanged(Location location) {
                // Called when a new location is found by the network location provider.
                if (location == null) {
                    getLastKnownLocation();
                } else {
                    setNewLocation(getBetterLocation(location, mLocationFetched), mLocationFetched);
//                    if (isLocationAccurate(location) && location.getAccuracy() < STANDARD_LOCATION_ACCURACY && location.getSpeed() < STANDARD_LOCATION_SEED_LIMIT) {// no use of this if
//                        setNewLocation(getBetterLocation(location, mLocationFetched), mLocationFetched);
//                    } else {
//                        setNewLocation(getBetterLocation(location, mLocationFetched), mLocationFetched);
//                    }
                }
            }

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

            public void onProviderEnabled(String provider) {
            }

            public void onProviderDisabled(String provider) {
            }
        };
    }

    public Location getAccurateLocation() {
        if (Build.VERSION.SDK_INT >= 23 &&
                ContextCompat.checkSelfPermission(mContext, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
                ContextCompat.checkSelfPermission(mContext, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            return null;
        }
        try {
            gpsLocation = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
            networkLocation = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
            Location newLocalGPS, newLocalNetwork;
            if (gpsLocation != null || networkLocation != null) {
                newLocalGPS = getBetterLocation(mLocationFetched, gpsLocation);
                newLocalNetwork = getBetterLocation(mLocationFetched, networkLocation);
                setNewLocation(getBetterLocation(newLocalGPS, newLocalNetwork), mLocationFetched);
            }
        } catch (Exception ex) {
            Log.e(TAG, ex.getMessage());
        }
        return mLocationFetched;
    }

    protected void startLocationUpdates() {
        LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
    }

    public void startLocationFetching() {
        mGoogleApiClient.connect();
        if (mGoogleApiClient.isConnected()) {
            startLocationUpdates();
        }
    }

    public void pauseLocationFetching() {
        if (mGoogleApiClient.isConnected()) {
            LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
            mGoogleApiClient.disconnect();
        }

    }

    public void abortLocationFetching() {
        mGoogleApiClient.disconnect();

        // Remove the listener you previously added
        if (locationManager != null && locationListener != null) {
            if (Build.VERSION.SDK_INT >= 23 &&
                    ContextCompat.checkSelfPermission(mContext, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
                    ContextCompat.checkSelfPermission(mContext, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
                return;
            }
            try {
                locationManager.removeUpdates(locationListener);
                locationManager = null;
            } catch (Exception ex) {
                Log.e(TAG, ex.getMessage());

            }
        }
    }

    public void resetLocation() {
        mLocationFetched = null;
        mLastLocationFetched = null;
        networkLocation = null;
        gpsLocation = null;
    }

    //  Android M Permission check
    public void askLocationPermission() {

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {


            if (ContextCompat.checkSelfPermission(mActivity, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED
                    || ContextCompat.checkSelfPermission(mActivity, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED
                    ) {
                if (ActivityCompat.shouldShowRequestPermissionRationale(mActivity, Manifest.permission.ACCESS_COARSE_LOCATION)
                        || ActivityCompat.shouldShowRequestPermissionRationale(mActivity, Manifest.permission.ACCESS_FINE_LOCATION)) {

                    final AlertDialog.Builder builder = new AlertDialog.Builder(mActivity);
                    builder.setMessage("Please allow all permissions in App Settings for additional functionality.")
                            .setCancelable(false)
                            .setPositiveButton("Allow", new DialogInterface.OnClickListener() {
                                public void onClick(@SuppressWarnings("unused") final DialogInterface dialog, @SuppressWarnings("unused") final int id) {
                                    Toast.makeText(mContext, "Welcome", Toast.LENGTH_SHORT).show();
                                }
                            })
                            .setNegativeButton("Deny", new DialogInterface.OnClickListener() {
                                public void onClick(final DialogInterface dialog, @SuppressWarnings("unused") final int id) {
                                    mActivity.finish();
                                }
                            });
                    final AlertDialog alert = builder.create();
                    alert.show();

                } else
                    ActivityCompat.requestPermissions(mActivity, new String[]{Manifest.permission.ACCESS_COARSE_LOCATION
                            , Manifest.permission.ACCESS_FINE_LOCATION
                    }, PERMISSION_REQUEST_CODE);

            }
        }
    }

    public void checkNetworkProviderEnable(int enforceActive) {
        locationManager = (LocationManager) mContext.getSystemService(Context.LOCATION_SERVICE);

        isGPSEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
        isNetworkEnabled = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);

        if (!isGPSEnabled && !isNetworkEnabled) {
            buildAlertMessageTurnOnLocationProviders("Your location providers seems to be disabled, please enable it", "OK", "Cancel");
        } else if (!isGPSEnabled && mForceNetworkProviders == LOCATION_PROVIDER_GPS_ONLY_RESTICTION) {
            buildAlertMessageTurnOnLocationProviders("Your GPS seems to be disabled, please enable it", "OK", "Cancel");
        } else if (!isNetworkEnabled && mForceNetworkProviders == LOCATION_PROVIDER_NETWORK_ONLY_RESTICTION) {
            buildAlertMessageTurnOnLocationProviders("Your Network location provider seems to be disabled, please enable it", "OK", "Cancel");
        }
        // getting network status

        if (!isGPSEnabled && !isNetworkEnabled) {
            Toast.makeText(mContext, "Location can't be fetched!", Toast.LENGTH_SHORT).show(); // show alert
            mActivity.finish();
        }
    }

    private void buildAlertMessageTurnOnLocationProviders(String message, String positiveButtonText, String negativeButtonText) {
        final AlertDialog.Builder builder = new AlertDialog.Builder(mActivity);
        builder.setMessage(message)
                .setCancelable(false)
                .setPositiveButton(positiveButtonText, new DialogInterface.OnClickListener() {
                    public void onClick(@SuppressWarnings("unused") final DialogInterface dialog, @SuppressWarnings("unused") final int id) {
                        Intent mIntent = new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS);
                        mIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                        mContext.startActivity(mIntent);
                    }
                })
                .setNegativeButton(negativeButtonText, new DialogInterface.OnClickListener() {
                    public void onClick(final DialogInterface dialog, @SuppressWarnings("unused") final int id) {
                        mActivity.finish();
                    }
                });
        final AlertDialog alert = builder.create();
        alert.show();
    }


    public Location getLastKnownLocation() {
        locationProvider = LocationManager.NETWORK_PROVIDER;
        Location lastKnownLocation = null;
        // Or use LocationManager.GPS_PROVIDER
        if (Build.VERSION.SDK_INT >= 23 &&
                ContextCompat.checkSelfPermission(mContext, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
                ContextCompat.checkSelfPermission(mContext, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            return lastKnownLocation;
        }
        try {
            lastKnownLocation = locationManager.getLastKnownLocation(locationProvider);
            return lastKnownLocation;
        } catch (Exception e) {
            Log.e(TAG, e.getMessage());
        }
        return lastKnownLocation;
    }

    public boolean isGooglePlayServicesAvailable() {
        int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(mContext);

        if (status == ConnectionResult.SUCCESS) {
            return true;
        } else {
            return false;
        }
    }

    /**
     * Determines whether one Location reading is better than the current Location fix
     *
     * @param location            The new Location that you want to evaluate
     * @param currentBestLocation The current Location fix, to which you want to compare the new one
     */
    protected Location getBetterLocation(Location location, Location currentBestLocation) {
        if (currentBestLocation == null) {
            // A new location is always better than no location
            return location;
        }

        // Check whether the new location fix is newer or older
        long timeDelta = location.getTime() - currentBestLocation.getTime();
        boolean isSignificantlyNewer = timeDelta > TWO_MINUTES;
        boolean isSignificantlyOlder = timeDelta < -TWO_MINUTES;
        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 location;
            // If the new location is more than two minutes older, it must be worse
        } else if (isSignificantlyOlder) {
            return currentBestLocation;
        }

        // 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 location;
        } else if (isNewer && !isLessAccurate) {
            return location;
        } else if (isNewer && !isSignificantlyLessAccurate && isFromSameProvider) {
            return location;
        }
        return currentBestLocation;
    }

    /**
     * Checks whether two providers are the same
     */

    private boolean isSameProvider(String provider1, String provider2) {
        if (provider1 == null) {
            return provider2 == null;
        }
        return provider1.equals(provider2);
    }

    public boolean isLocationAccurate(Location location) {
        if (location.hasAccuracy()) {
            return true;
        } else {
            return false;
        }
    }

    public Location getStaleLocation() {
        if (mLastLocationFetched != null) {
            return mLastLocationFetched;
        }
        if (Build.VERSION.SDK_INT >= 23 &&
                ContextCompat.checkSelfPermission(mContext, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
                ContextCompat.checkSelfPermission(mContext, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            return null;
        }
        if (mProviderType == SmartLocationManager.GPS_PROVIDER) {
            return locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
        } else if (mProviderType == SmartLocationManager.NETWORK_PROVIDER) {
            return locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
        } else {
            return getBetterLocation(locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER), locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER));
        }
    }
}