Question

我的代码中有两个错误..以下行有错误。无法解析onCreate（）方法和getMapAsync（）。我已经完成了无效的缓存并重新启动但它没有帮助。请帮我解决这个问题。

mapView.onCreate（savedInstanceState）;

map = mapView.getMapAsync（）;

public class PlacesMapActivity extends Fragment implements OnMapReadyCallback {
   private MapView mapView;
   private GoogleMap map;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    View v = inflater.inflate(R.layout.map_places, container, false);
    // Gets the MapView from the XML layout and creates it
    mapView = (MapView) v.findViewById(R.id.map);
    mapView.onCreate(savedInstanceState);

    // Gets to GoogleMap from the MapView and does initialization stuff
    map = mapView.getMapAsync();
    map.getUiSettings().setMyLocationButtonEnabled(false);
    map.setMyLocationEnabled(true);

    // Needs to call MapsInitializer before doing any CameraUpdateFactory calls
    try {
        MapsInitializer.initialize(this.getActivity());
    } catch (GooglePlayServicesNotAvailableException e) {
        e.printStackTrace();
    }
    // Updates the location and zoom of the MapView
    CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngZoom(new LatLng(43.1, -87.9), 10);
    map.animateCamera(cameraUpdate);

    return v;

   }

   @Override
   public void onMapReady(GoogleMap googleMap) {

  }
}

Answer 1

不要退货：map = mapView.getMapAsync();

使用：

  mapView.getMapAsync(this);

然后在onMapReady()内获取Map对象

 @Override
public void onMapReady(GoogleMap googleMap) {
    map= googleMap;
}

无法解析onCreate或getMapAsync

1 个答案: