无法解决方法＆＃39; requestLocationUpdates＆＃39;

Question

我尝试每5秒钟进行一次用户协调。但我无法解决方法requestLocationUpdates。有人能帮我吗？我已经找了一个决议。我看到许多人对LocationListener的导入存在问题。我已经尝试过，但它对我没有用

我的代码：

package highelo.drivetogether;

import android.content.Context;
import android.content.pm.PackageManager;
import android.location.Location;
import android.location.LocationManager;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;
import android.location.LocationListener;

import com.google.android.gms.location.*;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.location.GeofencingApi;
import com.google.android.gms.location.FusedLocationProviderApi;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.GoogleApiClient.ConnectionCallbacks;
import com.google.android.gms.common.api.GoogleApiClient.OnConnectionFailedListener;


public class Karte extends FragmentActivity implements
        OnMapReadyCallback, ConnectionCallbacks, OnConnectionFailedListener, LocationListener {

    private GoogleMap mMap;
    private GoogleApiClient mGoogleApiClient;
    private LocationRequest mLocationRequest;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.karte_lay);
        if (mGoogleApiClient == null) {
            mGoogleApiClient = new GoogleApiClient.Builder(this)
                    .addConnectionCallbacks(this)
                    .addOnConnectionFailedListener(this)
                    .addApi(LocationServices.API)
                    .build();
        }
        // Obtain the SupportMapFragment and get notified when the map is ready to be used.
        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.map);
        mapFragment.getMapAsync(this);
    }

    /**
     * Manipulates the map once available.
     * This callback is triggered when the map is ready to be used.
     * This is where we can add markers or lines, add listeners or move the camera. In this case,
     * we just add a marker near Sydney, Australia.
     * If Google Play services is not installed on the device, the user will be prompted to install
     * it inside the SupportMapFragment. This method will only be triggered once the user has
     * installed Google Play services and returned to the app.
     */
    @Override
    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;
        mMap.setMyLocationEnabled(true);
    }

    @Override
    public void onConnected(Bundle arg0) {
        Toast.makeText(this, "Connected to location service", Toast.LENGTH_LONG).show();

        LocationRequest request = LocationRequest.create();
        request.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
        request.setInterval(5000);
        request.setFastestInterval(1000);
        mLocationRequest.requestLocationUpdates(request, this);

    }

    @Override
    public void onConnectionSuspended(int i) {

    }

    @Override
    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
        Toast.makeText(this, "Connection failed", Toast.LENGTH_LONG).show();

    }

    @Override
    public void onLocationChanged(Location location) {
        String msg = "Location: " + location.getLatitude() + ", " + location.getLongitude();
        Toast.makeText(this, msg, Toast.LENGTH_LONG).show();
    }
}