小编rah*_*ani的帖子

我正在尝试学习geofire我尝试实现SFVehicle应用程序,但它显示错误,请你帮助这是我的项目的关键部分

public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {

    private GoogleMap mMap;
    private static final GeoLocation INITIAL_CENTER = new GeoLocation(37.7789, -122.4017);
    private static final int INITIAL_ZOOM_LEVEL = 14;
    private static String GEO_FIRE_DB = "https://learngoef.firebaseio.com";
    private static String GEO_FIRE_REF = GEO_FIRE_DB+ "/_geofire";



    private Circle searchCircle;
    private GeoFire geoFire;
    private GeoQuery mGeoQuery;

    private Map<String,Marker> markers;



    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_maps);
        // Obtain the SupportMapFragment and get notified when the map is ready to be used.
        SupportMapFragment mapFragment = (SupportMapFragment) …