Android LocationClient 类已弃用，但在文档中使用

Android LocationClient class is deprecated but used in documentation

提问by George Mathew K

If we go through the documentation of the LocationClient, we can see that the class is deprecated.

如果我们查看 的文档LocationClient，我们可以看到该类已被弃用。

But the deprecated class is used in the documentation to get the current location.

但是文档中使用了已弃用的类来获取当前位置。

I think this is little bit misleading or am i looking at incorrect documentations?

我认为这有点误导，还是我查看的文档不正确？

回答by Diego Palomar

Again Google has released a new API but they haven't updated the documentation :$ After spend some time trying to figure out how it works I got it, here you have a full example using the new/latest Location Service API... Enjoy developing :)

Google 再次发布了一个新的 API，但他们还没有更新文档发展:)

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());
    }
}

and do not forget to add this permissions to your AndroidManifest.xml file:

并且不要忘记将此权限添加到您的 AndroidManifest.xml 文件中：

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

Note: if you just need to get the last location (without updates), you can use LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient)from OnConnected

注意：如果您只需要获取最后一个位置（无需更新），则可以使用LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient)from OnConnected

回答by paularius

Some of the documentation is old in Google (some examples you mentioned still use the deprecated LocationClient). You have to use the new GoogleApiClient as described in the location Services examples:

Google 中的某些文档很旧（您提到的某些示例仍然使用已弃用的LocationClient）。您必须使用新的 GoogleApiClient，如位置服务示例中所述：

private GoogleApiClient mGoogleApiClient;

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

and when the new client is connected, you can use the fused location api for example like this:

当新客户端连接时，您可以使用融合位置 api，例如：

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

回答by Sofi Software LLC

It looks like this was covered in the developer blog. For LocationClient, you'd use this in conjunction with LocationServiceswhich then leads us to GeofencingApi.

看起来这在开发者博客中有介绍。对于 LocationClient，您可以将它与LocationServices结合使用，然后将我们引向 GeofencingApi。

回答by PaulR

LocationClient is removed. GoogleApiClient is api to use for Google Play services Location APIs.

LocationClient 被删除。GoogleApiClient 是用于 Google Play 服务位置 API 的 API。

The sample code for the common scenarios is hereand the training classes were updatedwith more coming soon.

常见场景的示例代码在这里，培训课程已更新，更多内容即将推出。

回答by Muhammad Waleed

According to the documentationupdate code..

根据文档更新代码..

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();

    }
}

回答by Saurabh Gaddelpalliwar

You just simply add this in your code,

您只需将其添加到您的代码中，

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());
            }

        }
    });
  .
  .
  }

According to the documentationupdate code..

根据文档更新代码..