Android 检查是否需要反向地理编码

我正在编写一个Android应用程序，我正在尝试进行反向地理编码，以显示当前用户在地图上的位置（通过检索用户的纬度和经度）

我根本没有得到用户的位置，但是代码的其他部分正在工作，比如添加标记

这是我的主要代码：

public class MapsActivity extends AppCompatActivity implements OnMapReadyCallback,
        GoogleMap.OnMyLocationChangeListener,
        android.location.LocationListener {

    private GoogleMap mGoogleMap;
    private Geocoder mGeocoder;

    private GoogleApiClient mGoogleApiClient = null;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_maps);

        SupportMapFragment mSupportMapFragment = (SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.map);
        mSupportMapFragment.getMapAsync(this);

        mGeocoder = new Geocoder(this, Locale.getDefault());
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_main1, menu);
        return true;
    }

    @Override
    protected void onPause() {
        super.onPause();
        stopLocationUpdates();

        Geocoder geocoder = new Geocoder(this, Locale.getDefault());
    }

    protected void stopLocationUpdates() {
        LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, (LocationListener) this);
    }


    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case R.id.normal:
                mGoogleMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
                break;
            case R.id.satellite:
                mGoogleMap.setMapType(GoogleMap.MAP_TYPE_SATELLITE);
                break;
            case R.id.terrain:
                mGoogleMap.setMapType(GoogleMap.MAP_TYPE_TERRAIN);
                break;
            case R.id.hybrid:
                mGoogleMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
                break;
            case R.id.none:
                mGoogleMap.setMapType(GoogleMap.MAP_TYPE_NONE);
                break;
        }

        return true;
    }

    @Override
    public void onMapReady(GoogleMap googleMap) {
        mGoogleMap = googleMap;
        mGoogleMap.getUiSettings().setZoomControlsEnabled(true);
        mGoogleMap.getUiSettings().setCompassEnabled(true);
        mGoogleMap.getUiSettings().setMyLocationButtonEnabled(true);
        mGoogleMap.setMyLocationEnabled(true);
        mGoogleMap.setOnMyLocationChangeListener(this);

        showMyLocationOnScreen();
    }

    @Override
    public void onMyLocationChange(Location location) {
        double currentLatitude = location.getLatitude();
        double currentLongitude = location.getLongitude();
        LatLng latLng = new LatLng(currentLatitude, currentLongitude);

        MarkerOptions options = new MarkerOptions()
                .position(latLng)
                .title("I am here!");
        mGoogleMap.addMarker(options);
        mGoogleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
        showMyLocationOnScreen();
    }

    private void showMyLocationOnScreen() {

        final LatLng PES_UNIVERSITY=new LatLng(12.9338,77.5345);
        mGoogleMap.addMarker(new MarkerOptions()
                .position(PES_UNIVERSITY)
                .title("PES UNIVERSITY")
                .snippet("Banashankari,3rd stage,Bangalore")
                .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA)));


        final LatLng PES_GYM = new LatLng(12.933996, 77.53438);
        mGoogleMap.addMarker(new MarkerOptions()
                .position(PES_GYM)
                .title("PES GYM")
                .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA)));

        final LatLng PES_CricketGround = new LatLng(12.93443, 77.533819);
        mGoogleMap.addMarker(new MarkerOptions()
                .position(PES_CricketGround)
                .title("PES CRICKET GROUND")
                .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_GREEN)));

        final LatLng NesCafe = new LatLng(12.934913, 77.534608);
        mGoogleMap.addMarker(new MarkerOptions()
                .position(NesCafe)
                .title("NESCAFE")
                .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_ORANGE)));

        final LatLng Chemistry_Lab = new LatLng(12.934801, 77.534702);
        mGoogleMap.addMarker(new MarkerOptions()
                .position(Chemistry_Lab)
                .title("CHEMISTRY LAB")
                .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_VIOLET)));


        final LatLng CISCO = new LatLng(12.935496, 77.534723);
        mGoogleMap.addMarker(new MarkerOptions()
                .position(CISCO)
                .title("CISCO")
                .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_CYAN)));

        final LatLng CampusMart = new LatLng(12.935682, 77.534463);
        mGoogleMap.addMarker(new MarkerOptions()
                .position(CampusMart)
                .title("CAMPUS MART")
                .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_BLUE)));

        final LatLng CafeCoffeeDay = new LatLng(12.933591, 77.534636);
        mGoogleMap.addMarker(new MarkerOptions()
                .position(CafeCoffeeDay)
                .title("CAFE COFFEE DAY")
                .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_ORANGE)));

        final LatLng BasketballCourt = new LatLng(12.933727, 77.534896);
        mGoogleMap.addMarker(new MarkerOptions()
                .position(BasketballCourt)
                .title("BASKETBALL COURT")
                .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED)));

        final LatLng Pir_Cube = new LatLng(12.933696, 77.534601);
        mGoogleMap.addMarker(new MarkerOptions()
                .position(Pir_Cube)
                .title("PIR CUBE")
                .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_ROSE)));

        final LatLng Food_Court = new LatLng(12.933618, 77.534333);
        mGoogleMap.addMarker(new MarkerOptions()
                .position(Food_Court)
                .title("FOOD COURT")
                .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_ORANGE)));

        final LatLng PES_Boys_Hostel = new LatLng(12.933276, 77.534935);
        mGoogleMap.addMarker(new MarkerOptions()
                .position(PES_Boys_Hostel)
                .title("PES BOYS HOSTEL")
                .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_YELLOW)));

        final LatLng IT_Block = new LatLng(12.933278, 77.534423);
        mGoogleMap.addMarker(new MarkerOptions()
                .position(IT_Block)
                .title("IT BLOCK")
                .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_AZURE)));

        final LatLng South_Canteen = new LatLng(12.934559, 77.535666);
        mGoogleMap.addMarker(new MarkerOptions()
                .position(South_Canteen)
                .title("SOUTH CANTEEN")
                .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_ORANGE)));

        final LatLng MRD = new LatLng(12.9354, 77.534942);
        mGoogleMap.addMarker(new MarkerOptions()
                .position(MRD)
                .title("MRD BLOCK")
                .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_AZURE)));

        final LatLng Panini_Block = new LatLng(12.932731, 77.534548);
        mGoogleMap.addMarker(new MarkerOptions()
                .position(Panini_Block)
                .title("PANINI BLOCK")
                .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_AZURE)));

        final LatLng South_Mess = new LatLng(12.93321, 77.534903);
        mGoogleMap.addMarker(new MarkerOptions()
                .position(South_Mess)
                .title("SOUTH MESS")
                .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_ORANGE)));


        final LatLng B_Block = new LatLng(12.935343, 77.534306);
        mGoogleMap.addMarker(new MarkerOptions()
                .position(B_Block)
                .title("B BLOCK")
                .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_AZURE)));

    }

    @Override
    public void onLocationChanged(Location location) {

    }

    @Override
    public void onStatusChanged(String s, int i, Bundle bundle) {

    }

    @Override
    public void onProviderEnabled(String s) {

    }

    @Override
    public void onProviderDisabled(String s) {

    }
}

---

我该如何解决此问题？

是否可能是您的地理编码人员在地图准备就绪之前发现我的定位呼叫正在返回？是否有人可以帮助我检索当前位置？您可以回复我之前的评论吗？另外，您正在使用的回调似乎已被弃用（）是否可能在地图准备就绪之前，您的地理编码器正在返回“查找我的位置”调用？是否有人可以帮助我检索当前位置？您可以回复我以前的评论吗？此外，您正在使用的回调似乎已被弃用（）