How to get Latitude and Longitude of the mobile device in android?

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How do I get the current Latitude and Longitude of the mobile device in android using location tools?

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8条回答

生来不讨喜

2020-11-22 16:15

Best way is

Add permission manifest file

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

Then you can get GPS location or if GPS location is not available then this function return NETWORK location

    public static Location getLocationWithCheckNetworkAndGPS(Context mContext) {
    LocationManager lm = (LocationManager)
            mContext.getSystemService(Context.LOCATION_SERVICE);
    assert lm != null;
    isGpsEnabled = lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
    isNetworkLocationEnabled = lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER);

    Location networkLoacation = null, gpsLocation = null, finalLoc = null;
    if (isGpsEnabled)
        if (ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {

            return null;
        }gpsLocation = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
    if (isNetworkLocationEnabled)
        networkLoacation = lm.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);

    if (gpsLocation != null && networkLoacation != null) {

        //smaller the number more accurate result will
        if (gpsLocation.getAccuracy() > networkLoacation.getAccuracy())
            return finalLoc = networkLoacation;
        else
            return finalLoc = gpsLocation;

    } else {

        if (gpsLocation != null) {
            return finalLoc = gpsLocation;
        } else if (networkLoacation != null) {
            return finalLoc = networkLoacation;
        }
    }
    return finalLoc;
}

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粉色の甜心

2020-11-22 16:18

you can got Current latlng using this

  public class MainActivity extends ActionBarActivity {
  private LocationManager locationManager;
  private String provider;
  private MyLocationListener mylistener;
  private Criteria criteria;
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
@SuppressLint("NewApi")
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);


             locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
              // Define the criteria how to select the location provider
              criteria = new Criteria();
              criteria.setAccuracy(Criteria.ACCURACY_COARSE);   //default

              // user defines the criteria

              criteria.setCostAllowed(false); 
              // get the best provider depending on the criteria
              provider = locationManager.getBestProvider(criteria, false);

              // the last known location of this provider
              Location location = locationManager.getLastKnownLocation(provider);

              mylistener = new MyLocationListener();

              if (location != null) {
                  mylistener.onLocationChanged(location);
              } else {
                  // leads to the settings because there is no last known location
                  Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
                  startActivity(intent);
              }
              // location updates: at least 1 meter and 200millsecs change
              locationManager.requestLocationUpdates(provider, 200, 1, mylistener);
            String a=""+location.getLatitude();
            Toast.makeText(getApplicationContext(), a, 222).show();

}

private class MyLocationListener implements LocationListener {

      @Override
      public void onLocationChanged(Location location) {
        // Initialize the location fields



          Toast.makeText(MainActivity.this,  ""+location.getLatitude()+location.getLongitude(),
                    Toast.LENGTH_SHORT).show()  

      }

      @Override
      public void onStatusChanged(String provider, int status, Bundle extras) {
          Toast.makeText(MainActivity.this, provider + "'s status changed to "+status +"!",
                    Toast.LENGTH_SHORT).show();
      }

      @Override
      public void onProviderEnabled(String provider) {
          Toast.makeText(MainActivity.this, "Provider " + provider + " enabled!",
            Toast.LENGTH_SHORT).show();

      }

      @Override
      public void onProviderDisabled(String provider) {
          Toast.makeText(MainActivity.this, "Provider " + provider + " disabled!",
            Toast.LENGTH_SHORT).show();
      }
  }

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礼貌的吻别

2020-11-22 16:26

Here is the class LocationFinder to find the GPS location. This class will call MyLocation, which will do the business.

LocationFinder

public class LocationFinder extends Activity {

    int increment = 4;
    MyLocation myLocation = new MyLocation();

    // private ProgressDialog dialog;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.intermediat);
        myLocation.getLocation(getApplicationContext(), locationResult);

        boolean r = myLocation.getLocation(getApplicationContext(),
            locationResult);

        startActivity(new Intent(LocationFinder.this,
        // Nearbyhotelfinder.class));
            GPSMyListView.class));
        finish();
    }

    public LocationResult locationResult = new LocationResult() {

        @Override
        public void gotLocation(Location location) {
            // TODO Auto-generated method stub
            double Longitude = location.getLongitude();
            double Latitude = location.getLatitude();

            Toast.makeText(getApplicationContext(), "Got Location",
                Toast.LENGTH_LONG).show();

            try {
                SharedPreferences locationpref = getApplication()
                    .getSharedPreferences("location", MODE_WORLD_READABLE);
                SharedPreferences.Editor prefsEditor = locationpref.edit();
                prefsEditor.putString("Longitude", Longitude + "");
                prefsEditor.putString("Latitude", Latitude + "");
                prefsEditor.commit();
                System.out.println("SHARE PREFERENCE ME PUT KAR DIYA.");
            } catch (Exception e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    };

    // handler for the background updating

}

MyLocation

public 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 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){}

        //Toast.makeText(context, gps_enabled+" "+network_enabled,     Toast.LENGTH_LONG).show();

        //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(), 10000);
    //    Toast.makeText(context, " Yaha Tak AAya", Toast.LENGTH_LONG).show();
        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() {

            //Context context = getClass().getgetApplicationContext();
             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);
    }
}

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星月不相逢

2020-11-22 16:27

Update 2020: Using Kotlin Coroutine to get Lat, lang & Address of the Device

This is an old question and most answers are outdated. This is how I do it my apps now:

This class help to track the device location and return list of Address of device using Geocoding. Put it in some util class

import android.Manifest
import android.app.AlertDialog
import android.content.Context
import android.content.Intent
import android.content.pm.PackageManager
import android.location.*
import android.os.Bundle
import android.provider.Settings
import android.util.Log
import androidx.core.app.ActivityCompat
import com.bmw.weatherapp.R
import kotlinx.coroutines.*
import java.io.IOException
import java.lang.ref.WeakReference
import java.util.*
import kotlin.coroutines.CoroutineContext

/**
 * Use GPS or Network Provider to get Device Location
 */
class DeviceLocationTracker(context: Context, deviceLocationListener: DeviceLocationListener) : LocationListener, CoroutineScope {
    private var deviceLocation: Location? = null
    private val context: WeakReference<Context>
    private var locationManager: LocationManager? = null
    private var deviceLocationListener: DeviceLocationListener
    private val job = Job()
    override val coroutineContext: CoroutineContext
        get() = job + Dispatchers.Main

    init {
        this.context = WeakReference(context)
        this.deviceLocationListener = deviceLocationListener
        initializeLocationProviders()
    }

    private fun initializeLocationProviders() {
        //Init Location Manger if not already initialized
        if (null == locationManager) {
            locationManager = context.get()
                    ?.getSystemService(Context.LOCATION_SERVICE) as LocationManager
        }
        locationManager?.apply {
            // flag for GPS status
            val isGPSEnabled = isProviderEnabled(LocationManager.GPS_PROVIDER)

            // flag for network status
            val isNetworkEnabled = isProviderEnabled(LocationManager.PASSIVE_PROVIDER)

            //If we have permission
            if (ActivityCompat.checkSelfPermission(context.get()!!, Manifest.permission.ACCESS_FINE_LOCATION)
                    == PackageManager.PERMISSION_GRANTED &&
                    ActivityCompat.checkSelfPermission(context.get()!!, Manifest.permission.ACCESS_COARSE_LOCATION)
                    == PackageManager.PERMISSION_GRANTED) {

                //First Try GPS
                if (isGPSEnabled) {
                    requestLocationUpdates(
                            LocationManager.GPS_PROVIDER,
                            UPDATE_FREQUENCY_TIME,
                            UPDATE_FREQUENCY_DISTANCE.toFloat(), this@DeviceLocationTracker)
                    deviceLocation = locationManager!!.getLastKnownLocation(LocationManager.GPS_PROVIDER)
                } else {
                    // Show alert to open GPS
                    context.get()?.apply {
                        AlertDialog.Builder(this)
                                .setTitle(getString(R.string.title_enable_gps))
                                .setMessage(getString(R.string.desc_enable_gps))
                                .setPositiveButton(getString(R.string.btn_settings)
                                ) { dialog, which ->
                                    val intent = Intent(
                                            Settings.ACTION_LOCATION_SOURCE_SETTINGS)
                                    startActivity(intent)
                                }.setNegativeButton(getString(R.string.btn_cancel))
                                { dialog, which -> dialog.cancel() }.show()
                    }
                }

                //If failed try using NetworkManger
                if(null==deviceLocation && isNetworkEnabled) {
                    requestLocationUpdates(
                            LocationManager.PASSIVE_PROVIDER,
                            0, 0f,
                            this@DeviceLocationTracker)
                    deviceLocation = locationManager!!.getLastKnownLocation(LocationManager.NETWORK_PROVIDER)
                }
            }
        }
    }

    /**
     * Stop using GPS listener
     * Must call this function to stop using GPS
     */
    fun stopUpdate() {
        if (locationManager != null) {
            locationManager!!.removeUpdates(this@DeviceLocationTracker)
        }
    }

    override fun onLocationChanged(newDeviceLocation: Location) {
        deviceLocation = newDeviceLocation
        launch(Dispatchers.Main) {
            withContext(Dispatchers.IO) {
                var addressList: List<Address?>? = null
                try {
                    addressList = Geocoder(context.get(),
                            Locale.ENGLISH).getFromLocation(
                            newDeviceLocation.latitude,
                            newDeviceLocation.longitude,
                            1)
                    deviceLocationListener.onDeviceLocationChanged(addressList)
                    Log.i(TAG, "Fetch address list"+addressList)

                } catch (e: IOException) {
                    Log.e(TAG, "Failed Fetched Address List")
                }
            }
        }
    }

    override fun onProviderDisabled(provider: String) {}
    override fun onProviderEnabled(provider: String) {}
    override fun onStatusChanged(provider: String, status: Int, extras: Bundle) {}
    interface DeviceLocationListener {
        fun onDeviceLocationChanged(results: List<Address>?)
    }

    companion object {
        // The minimum distance to change Updates in meters
        private const val UPDATE_FREQUENCY_DISTANCE: Long = 1 // 10 meters

        // The minimum time between updates in milliseconds
        private const val UPDATE_FREQUENCY_TIME: Long = 1 // 1 minute
        private val TAG = DeviceLocationTracker::class.java.simpleName
    }
}

Add Strings for alert dialog in case GPS is disabled

   <string name="title_enable_gps">Enable GPS</string>
   <string name="desc_enable_gps">GPS is not enabled. Do you want to go to settings menu?</string>
    <string name="btn_settings">Open Settings</string>
    <string name="btn_cancel">Cancel</string>

Add these permission in your Android manifest and request them in app start

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_GPS" />
<uses-permission android:name="android.permission.ACCESS_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

Usage

Implement DeviceLocationListener in your Activity/Fragment class

  class MainActivity : AppCompatActivity, DeviceLocationTracker.DeviceLocationListener {

Override onDeviceLocationChanged callback. You will get current location in onDeviceLocationChanged

  override fun onDeviceLocationChanged(results: List<Address>?) {
        val currntLocation = results?.get(0);
        currntLocation?.apply {
             currentlLat = latitude
             currentLng = longitude
             Country = countryCode
             cityName = getAddressLine(0)
          
        }

    }

To start tracking create a DeviceLocationTracker object in onCreate method of your. Pass the Activity as Context & this as DeviceLocationListener.

private lateinit var deviceLocationTracker: DeviceLocationTracker

override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        ...
        deviceLocationTracker= DeviceLocationTracker(this, this)

That is it, now you will start to get location update in onDeviceLocationChanged.

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别那么骄傲

2020-11-22 16:30

With google things changes very often: non of the previous answers worked for me.

based on this google training here is how you do it using

fused location provider

this requires Set Up Google Play Services

Activity class

public class GPSTrackerActivity extends AppCompatActivity implements
    GoogleApiClient.ConnectionCallbacks,     
 GoogleApiClient.OnConnectionFailedListener {

private GoogleApiClient mGoogleApiClient;
Location mLastLocation;

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

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

}

protected void onStart() {
    mGoogleApiClient.connect();
    super.onStart();
}

protected void onStop() {
    mGoogleApiClient.disconnect();
    super.onStop();
}

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

        mLastLocation = LocationServices.FusedLocationApi.getLastLocation(
                mGoogleApiClient);
        if (mLastLocation != null) {
            Intent intent = new Intent();
            intent.putExtra("Longitude", mLastLocation.getLongitude());
            intent.putExtra("Latitude", mLastLocation.getLatitude());
            setResult(1,intent);
            finish();

        }
    } catch (SecurityException e) {

    }

}

@Override
public void onConnectionSuspended(int i) {

}

@Override
public void onConnectionFailed(ConnectionResult connectionResult) {

}
}

usage

in you activity

 Intent intent = new Intent(context, GPSTrackerActivity.class);
    startActivityForResult(intent,1);

And this method

 protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if(requestCode == 1){
        Bundle extras = data.getExtras();
        Double longitude = extras.getDouble("Longitude");
        Double latitude = extras.getDouble("Latitude");
    }
}

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一整个雨季

2020-11-22 16:34
Use the LocationManager.
```
LocationManager lm = (LocationManager)getSystemService(Context.LOCATION_SERVICE); 
Location location = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
double longitude = location.getLongitude();
double latitude = location.getLatitude();
```
The call to getLastKnownLocation() doesn't block - which means it will return null if no position is currently available - so you probably want to have a look at passing a LocationListener to the requestLocationUpdates() method instead, which will give you asynchronous updates of your location.
```
private final LocationListener locationListener = new LocationListener() {
    public void onLocationChanged(Location location) {
        longitude = location.getLongitude();
        latitude = location.getLatitude();
    }
}

lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 2000, 10, locationListener);
```
You'll need to give your application the ACCESS_FINE_LOCATION permission if you want to use GPS.
```
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
```
You may also want to add the ACCESS_COARSE_LOCATION permission for when GPS isn't available and select your location provider with the getBestProvider() method.
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