为什么我的标记没有显示在 Google Map 活动上

Question

这里

mMap.addMarker(new MarkerOptions().position(new LatLng(22.7253, 75.8655)).title("Indore"));

上面的行代码在谷歌 Map 中显示标记，但是

mMap.addMarker(new MarkerOptions().position(new LatLng(mlastLocation.getLongitude(),mlastLocation.getLatitude())));

为什么上面的行代码没有在谷歌 Map 中显示标记，

pickuplocation = new LatLng(mlastLocation.getLongitude(),mlastLocation.getLatitude() );
        mMap.addMarker(new MarkerOptions().position(pickuplocation).title("Pickup here").icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED)));
        mMap.addMarker(new MarkerOptions().position(new LatLng(mlastLocation.getLongitude(),mlastLocation.getLatitude())));
        mMap.addMarker(new MarkerOptions().position(new LatLng(22.7253, 75.8655)).title("Indore"));
        Toast.makeText(getApplicationContext(),""+pickuplocation,Toast.LENGTH_SHORT).show();
        cabbook.setText("Getting Your Driver");

这里完整的代码

public class MapsActivity extends FragmentActivity implements OnMapReadyCallback,
        LocationListener, GoogleApiClient.ConnectionCallbacks,
        GoogleApiClient.OnConnectionFailedListener{

    private GoogleMap mMap;
    Button logoutBtn,cabbook;
    FirebaseAuth fAuth;
    Location mlastLocation;
    Marker mycurrentmarker;
    GoogleApiClient mGoogleApiClient;
    LocationRequest mLocationRequest;
    FusedLocationProviderClient fusedLocationProviderClient;
    FirebaseAuth mAuth;
    FirebaseFirestore mFirebaseFirestore;
    private LatLng pickuplocation;


    @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) getSupportFragmentManager()
                .findFragmentById(R.id.map);
        mapFragment.getMapAsync(this);
        fusedLocationProviderClient = LocationServices.getFusedLocationProviderClient(this);
        logoutBtn = findViewById(R.id.logout);
        cabbook = findViewById(R.id.cabbook);
    }

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

        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            return;
        }
        mMap = googleMap;
        mMap.setMyLocationEnabled(true);
        buildGoogleApiClient();
    }

    public void Logout(View view) {
        fAuth.signOut();
        startActivity(new Intent(getApplicationContext(),login.class)); }

    public void main(View view) {
        startActivity(new Intent(getApplicationContext(),login.class));
    }

    protected synchronized void buildGoogleApiClient() {
        mGoogleApiClient = new GoogleApiClient.Builder(this)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .addApi(LocationServices.API).build();
        mGoogleApiClient.connect();
    }
    @Override
    public void onLocationChanged(Location location) {
        if(getApplicationContext() !=null) {
            mlastLocation = location;
            LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
            mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
            mMap.animateCamera(CameraUpdateFactory.zoomTo(11));
        }
    }
    public void customer_request (View view) {
        String Uid = FirebaseAuth.getInstance().getCurrentUser().getUid();
        FirebaseFirestore mdb = FirebaseFirestore.getInstance();
        DatabaseReference ref = FirebaseDatabase.getInstance().getReference("customer_request");
        GeoFire geoFire = new GeoFire(ref);
        geoFire.setLocation(Uid,new GeoLocation(mlastLocation.getLongitude(),mlastLocation.getLatitude()));

        pickuplocation = new LatLng(mlastLocation.getLongitude(),mlastLocation.getLatitude() );
        mMap.addMarker(new MarkerOptions().position(pickuplocation).title("Pickup here").icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED)));
        mMap.addMarker(new MarkerOptions().position(new LatLng(mlastLocation.getLongitude(),mlastLocation.getLatitude())));
        mMap.addMarker(new MarkerOptions().position(new LatLng(22.7253, 75.8655)).title("Indore"));
        Toast.makeText(getApplicationContext(),""+pickuplocation,Toast.LENGTH_SHORT).show();
        cabbook.setText("Getting Your Driver");
    }
    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {
        Toast.makeText(getApplicationContext(), "Provider status changed",Toast.LENGTH_LONG).show();
    }

    @Override
    public void onProviderEnabled(String provider) {
        System.out.println("==onProviderEnabled=" + provider);
        Toast.makeText(getApplicationContext(), "Provider enabled by the user. GPS turned on",Toast.LENGTH_LONG).show();
    }

    @Override
    public void onProviderDisabled(String provider) {
        Toast.makeText(getApplicationContext(),"Provider disabled by the user. GPS turned off",Toast.LENGTH_LONG).show();
    }

    @Override
    public void onPointerCaptureChanged(boolean hasCapture) {

    }

    @Override
    public void onConnected(@Nullable Bundle bundle) {
        mLocationRequest = LocationRequest.create();
        mLocationRequest.setInterval(1000);
        mLocationRequest.setFastestInterval(1000);
        mLocationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
        LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        Log.i("ViewMap", "GPS can work now");
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            // TODO: Consider calling
            //    ActivityCompat#requestPermissions
            // here to request the missing permissions, and then overriding
            //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
            //                                          int[] grantResults)
            // to handle the case where the user grants the permission. See the documentation
            // for ActivityCompat#requestPermissions for more details.
            return;
        }

        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 0, this);
        locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 1000, 0, this);
    }

    @Override
    public void onConnectionSuspended(int i) {

    }

    @Override
    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
        Log.e("ViewMap", "Google play connection failed. GPS might not work");
    }