Android LocationClient 类已弃用，但在文档中使用

Posted 2023-04-13

【中文标题】Android LocationClient 类已弃用，但在文档中使用

【英文标题】：Android LocationClient class is deprecated but used in documentation

【发布时间】：2014-08-28 00:24:51

【问题描述】：

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

但documentation to get the current location中使用了已弃用的类。

我认为这有点误导还是我查看的文档不正确？

【问题讨论】：

与往常一样，他们不推荐使用 api，但不会同时更新文档。您必须等到文档更新或尝试找到一个工作示例

@GeorgeMathewK 你能标出正确答案吗？）

【参考方案1】：

Google 再次发布了一个新的 API，但他们没有更新文档：$ 在花了一些时间试图弄清楚它是如何工作的之后，我得到了它，这里有一个使用新的/最新的位置服务 API 的完整示例。 .. 享受开发:)

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());
    

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"/>

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

【讨论】：

是否有类似的代码示例说明如何使用 LocationServices.GeofencingAPI？

好答案。只需将它与一些旧组件/东西合并，一切都会像魅力一样工作。

请注意，如果您只想获取最后一个位置而不进行更新，您可以使用来自 OnConnected 的LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);

您将如何停止正在进行的位置请求？

FusedLocationApi 已弃用

【参考方案2】：

有些文档在 Google 中是旧的（您提到的一些示例仍然使用已弃用的 LocationClient）。 您必须按照位置服务示例中的说明使用新的 GoogleApiClient：

private GoogleApiClient mGoogleApiClient;

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

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);

【讨论】：

你能告诉我如何得到纬度和经度吗？

FusedLocationApi 已弃用

【参考方案3】：

这似乎在developer blog 中有所提及。对于 LocationClient，您可以将它与 LocationServices 结合使用，然后将我们带到 GeofencingApi。

【讨论】：

新的 Google Play API 发布六个月后，文档尚未更新。

Google 的官方 LocationProvider 应用程序似乎仍在使用此包中不再存在的 LocationClient 导入 com.google.android.gms.location.LocationClient;

【参考方案4】：

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

常见场景的示例代码为here，培训课程were updated 即将推出。

【参考方案5】：

根据documentation更新码..

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://***.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();

    

【参考方案6】：

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());
            

        
    );
  .
  .
  

根据文档更新代码..