如何在android中确定当前的本地化并向GoogleMapsApi添加标记

debugcn 发表于 Dev

罗德里克斯

我无法解决这个问题。我试图用地图创建 Fragment，我已经完成了。当我添加静态 Long, Lat 值时，地图会显示此 oa 地图，但是当我尝试通过在可运行中获取本地化来使其自动化时，应用程序只需打开地图而不显示特定的 LongLand 值。

这该怎么做？

为了长时间和迟到，我正在使用 LocalizationManager，当然，我在清单中添加权限并检查运行时

public class LocalizationFragment extends Fragment implements OnMapReadyCallback {


private GoogleMap map;
MapView mapView;
View mview;
private double latitude, longtitude;
private Handler handler;
private Runnable runnable;


public LocalizationFragment() {
    // Required empty public constructor
}

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

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    mview = inflater.inflate(R.layout.fragment_localization, container, false);
    handler = new Handler();
    getLocation();
    if (ContextCompat.checkSelfPermission(getContext(), android.Manifest.permission.CAMERA)
            != PackageManager.PERMISSION_GRANTED) {
        ActivityCompat.requestPermissions(getActivity(), new String[]{Manifest.permission.ACCESS_COARSE_LOCATION}, 13);
    }
    if (ContextCompat.checkSelfPermission(getContext(), android.Manifest.permission.CAMERA)
            != PackageManager.PERMISSION_GRANTED) {
        ActivityCompat.requestPermissions(getActivity(), new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, 11);
    }
    return mview;
}

@OnClick(R.id.button)
public void buttonStart() {
    getLocation();
}

@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);
    mapView = (MapView) mview.findViewById(R.id.mapView);
    if (mapView != null) {
        mapView.onCreate(null);
        mapView.onResume();
        mapView.getMapAsync(this);
    }
}

private void getLocation() {
    LocationManager locationManager = (LocationManager) getContext().getSystemService(Context.LOCATION_SERVICE);

    LocationListener locationListener = new LocationListener() {

        @Override
        public void onStatusChanged(String provider, int status, Bundle extras) {
            // TODO Auto-generated method stub

        }

        @Override
        public void onProviderEnabled(String provider) {
            // TODO Auto-generated method stub

        }

        @Override
        public void onProviderDisabled(String provider) {
            // TODO Auto-generated method stub

        }

        @Override
        public void onLocationChanged(Location location) {
            // TODO Auto-generated method stub
            latitude = location.getLatitude();
            longtitude = location.getLongitude();
        }
    };
    if (ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_FINE_LOCATION)
            != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission
            (getContext(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
        return;
    }
    locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener);

}

@Override
public void onMapReady(final GoogleMap googleMap) {
    MapsInitializer.initialize(getContext());
    map = googleMap;
    googleMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
    runnable = new Runnable() {
        @Override
        public void run() {
            getLocation();
            googleMap.addMarker(new MarkerOptions().position(new LatLng(latitude, longtitude)).title("Statue").snippet("Something"));
            CameraPosition liberty = CameraPosition.builder().target(new LatLng(latitude, longtitude)).zoom(15).bearing(0).tilt(45).build();
            googleMap.moveCamera(CameraUpdateFactory.newCameraPosition(liberty));
            handler.postDelayed(this, 5000);
        }
    };
  }
}

超级头脑

您需要从主线程添加标记。将其添加到您的可运行对象中。

 runOnUiThread(new Runnable() {

                    @Override
                    public void run() {
                    googleMap.addMarker(new MarkerOptions().position(new LatLng(latitude, longtitude)).title("Statue").snippet("Something"));
                    }
                });

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