AndroidLocationClient 类不推荐使用，但在文档中使用

如果我们浏览 LocationClient的文档，我们可以看到这个类是不推荐的。

但是在 获取当前位置的文档中使用了弃用的类。

我认为这有点误导，或者我看到的是不正确的文档？

70690 次浏览
小开

看起来这里被 开发者博客覆盖了。对于 LocationClient，您将与 位置服务一起使用它，然后将我们引向 GeofencingApi。

小开

有些文档在 Google 中已经过时了(您提到的一些例子仍然使用不被推崇的 LocationClient)。 您必须按照位置服务示例中的描述使用新的 GoogleApiClient:

private GoogleApiClient mGoogleApiClient;


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

当连接到新客户端时，您可以使用融合位置 api，例如:

LocationServices.FusedLocationApi.requestLocationUpdates(theNewClient,
locationRequest, locationListener);
小开
最佳答案

Google 又一次发布了一个新的 API，但是他们还没有更新文档: $在花费一些时间试图弄清楚它是如何工作的之后，我得到了它，在这里你有一个使用新的/最新的位置服务 API 的完整例子... 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());
}
}

并且不要忘记将这个权限添加到 AndroidManifest.xml 文件中:

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

注意: 如果只需要获取最后一个位置(不需要更新) ，可以使用 OnConnected 的 LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient)

小开

GoogleApiClient 是用于 GooglePlay 服务位置 API 的 api。

常见场景的示例代码是 给你和培训类 更新了，很快还会有更多。

小开

根据 文件更新代码. 。

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();


}
}
小开

你只需要在代码里加上这个,

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 文件更新代码. 。


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