Java 我正在获取无法转换为android.location.LocationListener的类

下面是代码。无法将TabbedActivity强制转换为android.location.LocationListener异常。我尝试了很多选择，但都解决不了这个问题。任何帮助都会有帮助

我已经导入了所有必需的导入，并实现了所有必要的方法。但还是没有运气

    import com.google.android.gms.common.ConnectionResult;
    import com.google.android.gms.common.api.GoogleApiClient;
    import com.google.android.gms.common.api.Status;
    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.location.places.Place;
    import com.google.android.gms.maps.GoogleMap;
    import com.google.android.gms.maps.OnMapReadyCallback;

    public class TabbedActivity extends AppCompatActivity implements GoogleApiClient.ConnectionCallbacks,
            GoogleApiClient.OnConnectionFailedListener, OnMapReadyCallback,
            LocationListener {

        private GoogleMap mMap;
        public static final int MY_PERMISSIONS_REQUEST_LOCATION = 99;
        private GoogleApiClient mGoogleApiClient;
        private LocationRequest mLocationRequest;

        @Override
        protected void onCreate(Bundle savedInstanceState) {        
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_tabbed);
            mGoogleApiClient = new GoogleApiClient.Builder(this)
                    .addConnectionCallbacks(this)
                    .addOnConnectionFailedListener(this)
                    .addApi(LocationServices.API).build();

            mLocationRequest = LocationRequest.create()
                    .setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY)
                    .setInterval(10 * 1000)        
                    .setFastestInterval(1 * 1000);

            SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
            mapFragment.getMapAsync(this);
        }
        @Override
        protected void onResume() {
            super.onResume();
            mGoogleApiClient.connect();
        }

        @Override
        protected void onPause() {
            super.onPause();
            if (mGoogleApiClient.isConnected()) {
                LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
                mGoogleApiClient.disconnect();
            }
        }

        @Override
        public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
            switch (requestCode) {
                case MY_PERMISSIONS_REQUEST_LOCATION: {
                    if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                        if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION)
                                == PackageManager.PERMISSION_GRANTED) {
                            mMap.setMyLocationEnabled(true);
                            Location location = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
                            if (location == null) {
                                LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
                            }
                      }
                 }
            }                    
        }

        @Override
        public void onConnected(@Nullable Bundle bundle) {
            if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {

                return;
            }
            Location location = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
            if (location == null) {
                LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
            }
            else {
                //
            }
        }
        @Override
        public void onLocationChanged(Location location) {

        }
    }

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密码在哪里？对不起。。无法上载..请立即检查代码