Android cannot resolve method requestLocationUpdates FusedLocationProviderAPI

问题

I'm attempting to follow the Android Receiving Location Updates tutorial. The example code is here on Github.

Everything is working except for this line: LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);

It's throwing a cannot resolve method requestLocationUpdates error. I don't see anything in the documentation, but I'm pretty new to Android so might be missing something :).

Here's the full code. Any ideas where I'm going wrong? Thanks!

package location.test.example.com;

import android.app.Fragment;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.os.Bundle;
import android.support.v4.app.NavUtils;
import android.text.format.DateFormat;
import android.util.Log;
import android.view.ActionMode;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationServices;

import java.util.ArrayList;
import java.util.Date;

public class LocationFragment extends Fragment implements
        GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, LocationListener {

    protected GoogleApiClient mGoogleApiClient;
    protected Location mCurrentLocation;
    protected LocationRequest mLocationRequest;
    protected String mLastUpdateTime;

    public static final long UPDATE_INTERVAL_IN_MILLISECONDS = 5000;

    public static final long FASTEST_UPDATE_INTERVAL_IN_MILLISECONDS = UPDATE_INTERVAL_IN_MILLISECONDS / 5;

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

        mLastUpdateTime = "";

        buildGoogleApiClient();

        if (NavUtils.getParentActivityName(getActivity()) != null) {
            getActivity().getActionBar().setDisplayHomeAsUpEnabled(true);
        }
        setHasOptionsMenu(true);

    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.fragment_location, container, false);    

        return v;
    }

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

    protected void createLocationRequest() {
        mLocationRequest = new LocationRequest();

        mLocationRequest.setInterval(UPDATE_INTERVAL_IN_MILLISECONDS);

        mLocationRequest.setFastestInterval(FASTEST_UPDATE_INTERVAL_IN_MILLISECONDS);

        mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
        startLocationUpdates();
    }

    protected void startLocationUpdates() {
        LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
    }

    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {

    }

    @Override
    public void onProviderEnabled(String provider) {

    }

    @Override
    public void onProviderDisabled(String provider) {

    }

    @Override
    public void onLocationChanged(Location location) {
        mCurrentLocation = location;
        mLastUpdateTime = DateFormat.getDateFormat(getActivity()).format(new Date());
        Toast.makeText(getActivity(), location.toString() + "", Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onConnected(Bundle connectionHint) {

    }

    @Override
    public void onConnectionFailed(ConnectionResult result) {
        Log.i("LocationFragment", "Connection failed: ConnectionResult.getErrorCode() " + result.getErrorCode());
    }

    @Override
    public void onConnectionSuspended(int cause) {
        Log.i("LocationFragment", "Connection suspended");
        mGoogleApiClient.connect();
    }

}

回答1:

You have to use LocationListener for LocationServices.FusedLocationApi.requestLocationUpdates's locationListener

not

android.location.LocationListener

but

com.google.android.gms.location.LocationListener

回答2:

Import

import com.google.android.gms.location.LocationListener;

instead of

import android.location.LocationListener;

回答3:

Replace

import android.location.LocationListener;

From

import com.google.android.gms.location.LocationListener;

and remove these override methods

public void onStatusChanged(String provider, int status, Bundle extras) {}
@Override
public void onProviderEnabled(String provider) {}
@Override
public void onProviderDisabled(String provider) {}

回答4:

Importing android.location.LocationListener or com.google.android.gms.location.LocationListener is useless as the packages remains unused. Implement com.google.android.gms.location.LocationListener inteface will do.

回答5:

Instead of changing the import statement , Use implements com.google.android.gms.location.LocationListener

than just LocationListener/android.location.LocationListener.

It sure solved my problem.

回答6:

need update version of google play services 10.0.0+

compile 'com.google.android.gms:play-services:10.0.0'

来源：https://stackoverflow.com/questions/28954421/android-cannot-resolve-method-requestlocationupdates-fusedlocationproviderapi

标签

android

fusedlocationproviderapi