A classe LocationClient do Android foi descontinuada, mas usada na documentação

Se examinarmos a documentação do LocationClient, podemos ver que a classe está obsoleta.

Mas a classe descontinuada é usada na documentação para obter o local atual .

Eu acho que isso é um pouco enganador ou estou olhando para documentações incorretas?

Mais uma vez, o Google lançou uma nova API, mas não atualizou a documentação: $ Depois de passar algum tempo tentando descobrir como funciona, eu consegui, aqui você tem um exemplo completo usando a nova / mais recente API do Serviço de Localização ... desenvolvendo :)

import android.location.Location;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;

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;

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

    private final String TAG = "MyAwesomeApp";

    private TextView mLocationView;

    private GoogleApiClient mGoogleApiClient;

    private LocationRequest mLocationRequest;

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

        mLocationView = new TextView(this);

        setContentView(mLocationView);

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

    @Override
    protected void onStart() {
        super.onStart();
        // Connect the client.
        mGoogleApiClient.connect();
    }

    @Override
    protected void onStop() {
        // Disconnecting the client invalidates it.
        mGoogleApiClient.disconnect();
        super.onStop();
    }

    @Override
    public void onConnected(Bundle bundle) {

        mLocationRequest = LocationRequest.create();
        mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
        mLocationRequest.setInterval(1000); // Update location every second

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

    @Override
    public void onConnectionSuspended(int i) {
        Log.i(TAG, "GoogleApiClient connection has been suspend");
    }

    @Override
    public void onConnectionFailed(ConnectionResult connectionResult) {
        Log.i(TAG, "GoogleApiClient connection has failed");
    }

    @Override
    public void onLocationChanged(Location location) {
        mLocationView.setText("Location received: " + location.toString());
    }
}

e não se esqueça de adicionar essas permissões ao seu arquivo AndroidManifest.xml:

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

Nota: se você precisar apenas obter o último local (sem atualizações), poderá usar o LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient)OnConnected

Parte da documentação é antiga no Google (alguns exemplos que você mencionou ainda usam o uso obsoleto LocationClient). Você precisa usar o novo GoogleApiClient, conforme descrito nos exemplos de Serviços de localização:

private GoogleApiClient mGoogleApiClient;

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

e quando o novo cliente estiver conectado, você poderá usar a API da localização fundida, por exemplo, da seguinte maneira:

LocationServices.FusedLocationApi.requestLocationUpdates(theNewClient, 
    locationRequest, locationListener);

Parece que isso foi abordado no blog do desenvolvedor . Para LocationClient, você usaria isso em conjunto com LocationServices, que nos levará ao GeofencingApi .

LocationClient é removido. GoogleApiClient é uma API para usar nas APIs de localização dos serviços Google Play.

O código de exemplo para os cenários comuns está aqui e as aulas de treinamento foram atualizadas com mais em breve.

De acordo com o código de atualização da documentação ..

package iwannado.com.myapplicationforsha1key;

import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.location.Geocoder;
import android.location.Location;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.identity.intents.Address;
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.CameraUpdate;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapView;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.model.CameraPosition;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

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

public class MapWithMapViewActivity extends AppCompatActivity implements OnMapReadyCallback,
        GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, LocationListener {
    private static final String TAG = MapWithMapViewActivity.class.getCanonicalName();


    private GoogleMap mMap = null;
    private MapView mMapView = null;

    private EditText loatcationEditText = null;

    private GoogleApiClient mGoogleApiClient = null;
    private Location mLocationRequest = null;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_map_with_map_view);
        loatcationEditText = (EditText) findViewById(R.id.loatcation_edit_text);
        mMapView = (MapView) findViewById(R.id.mapView);
        /*
        * The method is used to create mapView
        * */
        mMapView.onCreate(savedInstanceState);
        /*
        *The method Return Google map
        * */
        mMapView.getMapAsync(this);

        gotoCurrentLoactionGooglePlayService();
    }

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


    @Override
    protected void onPause() {
        super.onPause();
        mMapView.onPause();
    }

    @Override
    public void onLowMemory() {
        super.onLowMemory();
        mMapView.onLowMemory();
    }

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

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

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        mMapView.onSaveInstanceState(outState);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        mMapView.onDestroy();
    }


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



    }



    private void gotoCurrentLoactionGooglePlayService() {
        /*working with new google api for laction..
http://stackoverflow.com/a/25173057
* */
        mGoogleApiClient = new GoogleApiClient.Builder(this)
                .addApi(LocationServices.API)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .build();
    }



    @Override
    public void onConnected(@Nullable Bundle bundle) {
/*
* Follow this documentation.. https://developer.android.com/training/location/retrieve-current.html
*
* Please add Runtime permission here for android 6
* */
        mLocationRequest = LocationServices.FusedLocationApi.getLastLocation(
                mGoogleApiClient);
        if (mLocationRequest != null) {

           LatLng latLng = new LatLng(mLocationRequest.getLatitude(),mLocationRequest.getLongitude());
        mMap.addMarker(new MarkerOptions().position(latLng).title("Programmatically Current Loaction"));
        mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
            Toast.makeText(this,"getLatitude() = "+String.valueOf(mLocationRequest.getLatitude())+"\n getLongitude() = "+String.valueOf(mLocationRequest.getLongitude()),Toast.LENGTH_LONG).show();

        }
    }


    @Override
    public void onConnectionSuspended(int i) {
        Log.i(TAG, "GoogleApiClient connection has been suspend");
    }

    @Override
    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
        Log.i(TAG, "GoogleApiClient connection has failed");
    }

    @Override
    public void onLocationChanged(Location location) {


        Toast.makeText(this,"Location received: " + location.toString(),Toast.LENGTH_LONG).show();

    }
}

Você simplesmente adiciona isso no seu código,

private FusedLocationProviderClient mFusedLocationClient;
private Location mLastLocation;

 oncreate(){
  .
  .
  FusedLocationProviderClient mFusedLocationClient = LocationServices.getFusedLocationProviderClient(this);
   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;
    }
    mFusedLocationClient.getLastLocation().addOnSuccessListener(new OnSuccessListener<Location>() {
        @Override
        public void onSuccess(Location location) {
            mLastLocation =location;
            if (mLastLocation!= null) {
                LogUtils.logE(TAG, "Lat: " + mLastLocation.getLatitude() + "Long: " + mLastLocation.getLongitude());
            }

        }
    });
  .
  .
  }

De acordo com o código de atualização da documentação ..