how to get current location in google map android

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Actually my problem is I am not getting current location latitude and longitude I tried so many ways.I know that this question already asked in SO I tried that answers also

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别跟我提以往

2020-11-27 14:56

Select google map activity
you need a Google Maps API key.

To get one, follow this link, follow the directions and press "Create" at the end: https://console.developers.google.com/flows/enableapi?apiid=maps_android_backend&keyType=CLIENT_SIDE_ANDROID&r=48:C7:A8:5B:31:4F:78:F2:38:41:97:F4:70:C3:A0:EB:6A:73:28:88%3Bcom.example.myapplication
Paste this Code in MapsActivity.java

import android.Manifest;
import android.content.pm.PackageManager;
import android.location.Location;
import android.os.Build;

import android.os.Bundle;

import android.widget.Toast;

import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import androidx.fragment.app.FragmentActivity;

import com.google.android.gms.common.ConnectionResult;
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 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;



  public class MapsActivity extends FragmentActivity implement
   OnMapReadyCallback,
   GoogleApiClient.ConnectionCallbacks,
   GoogleApiClient.OnConnectionFailedListener,
  LocationListener{

    @private GoogleMap mMap;
        GoogleApiClient mGoogleApiClient;
        Location mLastLocation;
        Marker mCurrLocationMarker;
        LocationRequest mLocationRequest;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_maps);

            if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                checkLocationPermission();
            }
            // 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);
        }

        @Override
        public void onMapReady(GoogleMap googleMap) {
            mMap = googleMap;


            //Initialize Google Play Services
            if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                if (ContextCompat.checkSelfPermission(this,
                        Manifest.permission.ACCESS_FINE_LOCATION) ==
                    PackageManager.PERMISSION_GRANTED) {
                    buildGoogleApiClient();
                    mMap.setMyLocationEnabled(true);
                }
            } else {
                buildGoogleApiClient();
                mMap.setMyLocationEnabled(true);
            }
        }

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

        @Override
        public void onConnected(Bundle bundle) {

            mLocationRequest = new LocationRequest();
            mLocationRequest.setInterval(1000);
            mLocationRequest.setFastestInterval(1000);
            mLocationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
            if (ContextCompat.checkSelfPermission(this,
                    Manifest.permission.ACCESS_FINE_LOCATION) ==
                PackageManager.PERMISSION_GRANTED) {
                LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
            }

        }

        @Override
        public void onConnectionSuspended(int i) {

        }

        @Override
        public void onLocationChanged(Location location) {

            mLastLocation = location;
            if (mCurrLocationMarker != null) {
                mCurrLocationMarker.remove();
            }

            //Place current location marker
            LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
            MarkerOptions markerOptions = new MarkerOptions();
            markerOptions.position(latLng);
            markerOptions.title("Current Position");
            markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA));
            mCurrLocationMarker = mMap.addMarker(markerOptions);

            //move map camera
            mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
            mMap.animateCamera(CameraUpdateFactory.zoomTo(14));

            //stop location updates
            if (mGoogleApiClient != null) {
                LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
            }

        }

        @Override
        public void onConnectionFailed(ConnectionResult connectionResult) {

        }

        public static final int MY_PERMISSIONS_REQUEST_LOCATION = 99;
        public boolean checkLocationPermission() {
            if (ContextCompat.checkSelfPermission(this,
                    Manifest.permission.ACCESS_FINE_LOCATION) !=
                PackageManager.PERMISSION_GRANTED) {

                // Asking user if explanation is needed
                if (ActivityCompat.shouldShowRequestPermissionRationale(this,
                        Manifest.permission.ACCESS_FINE_LOCATION)) {

                    // Show an explanation to the user *asynchronously* -- don't block
                    // this thread waiting for the user's response! After the user
                    // sees the explanation, try again to request the permission.

                    //Prompt the user once explanation has been shown
                    ActivityCompat.requestPermissions(this,
                        new String[] {
                            Manifest.permission.ACCESS_FINE_LOCATION
                        },
                        MY_PERMISSIONS_REQUEST_LOCATION);


                } else {
                    // No explanation needed, we can request the permission.
                    ActivityCompat.requestPermissions(this,
                        new String[] {
                            Manifest.permission.ACCESS_FINE_LOCATION
                        },
                        MY_PERMISSIONS_REQUEST_LOCATION);
                }
                return false;
            } else {
                return true;
            }
        }

        @Override
        public void onRequestPermissionsResult(int requestCode,
            String permissions[], int[] grantResults) {
            switch (requestCode) {
                case MY_PERMISSIONS_REQUEST_LOCATION:
                    {
                        // If request is cancelled, the result arrays are empty.
                        if (grantResults.length > 0 &&
                            grantResults[0] == PackageManager.PERMISSION_GRANTED) {

                            // permission was granted. Do the
                            // contacts-related task you need to do.
                            if (ContextCompat.checkSelfPermission(this,
                                    Manifest.permission.ACCESS_FINE_LOCATION) ==
                                PackageManager.PERMISSION_GRANTED) {

                                if (mGoogleApiClient == null) {
                                    buildGoogleApiClient();
                                }
                                mMap.setMyLocationEnabled(true);
                            }

                        } else {

                            // Permission denied, Disable the functionality that depends on this permission.
                            Toast.makeText(this, "permission denied", Toast.LENGTH_LONG).show();
                        }
                        return;
                    }


            }
        }
    }

Make sure these permission are written in Manifest file

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

implementation 'com.google.android.gms:play-services-maps:17.0.0'

implementation 'com.google.android.gms:play-services-location:17.0.0'

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感情败类

2020-11-27 14:57

public class MainActivity extends ActionBarActivity implements
    ConnectionCallbacks, OnConnectionFailedListener {
...
@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()));
    }
}
}

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天涯浪人

2020-11-27 14:58

         import android.Manifest;
import android.content.pm.PackageManager;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.os.Build;
import android.os.Bundle;

import androidx.annotation.RequiresApi;
import androidx.core.app.ActivityCompat;
import androidx.fragment.app.FragmentActivity;

import com.google.android.gms.location.FusedLocationProviderClient;
import com.google.android.gms.location.LocationListener;
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.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
import com.google.android.gms.tasks.OnSuccessListener;

import java.io.IOException;
import java.util.List;
import java.util.Locale;

import static android.Manifest.permission.ACCESS_FINE_LOCATION;

public class MapsActivity extends FragmentActivity implements OnMapReadyCallback, LocationListener {

    private GoogleMap mMap;
    private FusedLocationProviderClient client;
    double latit;
    double longi;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_maps);
        // 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);
        client = LocationServices.getFusedLocationProviderClient(this);
    }
@RequiresApi(api = Build.VERSION_CODES.M)
    @Override
    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;



        try {
            setupMap();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }
 client = LocationServices.getFusedLocationProviderClient(this);

        if (checkSelfPermission(Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            // TODO: Consider calling
            //    Activity#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 Activity#requestPermissions for more details.
            return;
        }
        client.getLastLocation()
                .addOnSuccessListener(this, new OnSuccessListener<Location>() {
                    @Override
                    public void onSuccess(Location location) {
                        // Got last known location. In some rare situations this can be null.
                        if (location != null) {

                            //    local=findViewById(R.id.tv5);

                            double la=location.getLatitude();
                            double lo=location.getLongitude();

                            LatLng curre=new LatLng(la,lo);
                            mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(curre,18));

                        }
                    }
                });



    }
    }

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北荒

2020-11-27 14:59
Your current location might not be available immediately, after the map fragment is initialized.

After set
```
googleMap.setMyLocationEnabled(true);
```
you have to wait until you see the blue dot shown on your MapView. Then
```
Location myLocation = googleMap.getMyLocation();
```
myLocation won't be null.

I think you better use the LocationClient instead, and implement your own LocationListener.onLocationChanged(Location l)

Receiving Location Updates will show you how to get current location from LocationClient
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清歌不尽

2020-11-27 15:00

Please check the sample code for the Google Maps Android API v2. Using this will solve your problem.

private void setUpMapIfNeeded() {
    // Do a null check to confirm that we have not already instantiated the map.
    if (mMap == null) {
        // Try to obtain the map from the SupportMapFragment.
        mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap();
        mMap.setMyLocationEnabled(true);
        // Check if we were successful in obtaining the map.
        if (mMap != null) {
            mMap.setOnMyLocationChangeListener(new GoogleMap.OnMyLocationChangeListener() {
                @Override
                public void onMyLocationChange(Location arg0) {
                    mMap.addMarker(new MarkerOptions().position(new LatLng(arg0.getLatitude(), arg0.getLongitude())).title("It's Me!"));
                }
            });
        }
    }
}

Call this function in onCreate function.

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