为什么我不能在 Android Studio 的 Google 地图中放置标记？

如何解决为什么我不能在 Android Studio 的 Google 地图中放置标记？

我目前正在使用 Android Studio 开发应用。 但出于某种原因，如果我点击或双击该位置，这不会让我添加标记。 如果我点击或双击它，它只会放大。 你知道为什么吗？我做错了什么？

我的代码是：

public class SetYourLocation extends AppCompatActivity implements OnMapReadyCallback {

    private TextView textView;
    private String park_name,phone,capacity,address,password;
    private  GoogleMap mMap;
    private String location;

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

        SupportMapFragment mapFragment = (SupportMapFragment)
                getSupportFragmentManager()
                        .findFragmentById( R.id.map_loc );
        mapFragment.getMapAsync( this );



        Bundle b = getIntent().getExtras();
        park_name = b.getString("park_name");
        phone = b.getString("phone");
        capacity = b.getString("capacity");
        address = b.getString("address");
        password = b.getString("password");

        //textView.setText(park_name+" "+phone+" "+capacity+" "+map_locatin+" "+password);

    }

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

        try {
            boolean success = googleMap.setMapStyle( MapStyleOptions.loadRawResourceStyle( getApplicationContext(),R.raw.mapstyler_stander ) );
            if (!success) {
                Log.e( "Set Your Location","Style map failed" );
            }
        } catch (Resources.NotFoundException e) {
            Log.e( "Set Your Location","Can't find MAP_Style" + e );
        }

        LatLng cdo = new LatLng(8.481276,124.64666 );
        mMap.moveCamera( CameraUpdateFactory.newLatLngZoom( cdo,11 ) );
        mMap.getUiSettings().setZoomControlsEnabled( true );
        final Marker marker = mMap.addMarker( new MarkerOptions().position( cdo ) );
        marker.remove();
        if (ActivityCompat.checkSelfPermission( this,android.Manifest.permission.ACCESS_FINE_LOCATION ) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission( this,android.Manifest.permission.ACCESS_COARSE_LOCATION ) != PackageManager.PERMISSION_GRANTED) {
            return;
        }
        mMap.setMyLocationEnabled( true );


        mMap.setOnMapClickListener( new GoogleMap.OnMapClickListener() {
            @Override
            public void onMapClick(LatLng point) {
                final double lat = point.latitude ;
                final double lng =   point.longitude  ;
                double zoomV =    mMap.getCameraPosition().zoom  ;
                location = getCompleteAddressString(  point.latitude,point.longitude  );
                try{
                    drawMarker(point,location);
                }catch (Exception e){
                    e.printStackTrace();
                }


                ////////////////////////////////////////////////////////////////////////////////////
                mMap.setOnMarkerClickListener(new GoogleMap.OnMarkerClickListener() {
                    @Override
                    public boolean onMarkerClick(Marker marker) {
                        new AlertDialog.Builder(SetYourLocation.this)
                                .setTitle("My Location")
                                .setMessage(location )
                                .setPositiveButton("Allow",new DialogInterface.OnClickListener() {
                                    public void onClick(DialogInterface dialog,int which) {

                                        //////////////////////////
                                Toast.makeText(getApplicationContext()," Lat:"+lat+" Lng:"+lng+" Add:"+location,Toast.LENGTH_LONG).show();
                                        User user = SharedPrefManager.getInstance(getApplication()).getUser();

                                  Call<DefaultResponse> call = RetrofitClient.getInstance().getApi().rentYourSpaceReg(park_name,user.getFullName(),password,lat,lng,location);
                                  call.enqueue(new Callback<DefaultResponse>() {
                                      @Override
                                      public void onResponse(Call<DefaultResponse> call,Response<DefaultResponse> response) {
                                          DefaultResponse defaultResponse = response.body();
                                          Toast.makeText(getApplicationContext(),defaultResponse.getMsg(),Toast.LENGTH_LONG).show();
                                          Intent  intent = new Intent(SetYourLocation.this,HomepageActivity.class);
                                          intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
                                          startActivity(intent);
                                      }

                                      @Override
                                      public void onFailure(Call<DefaultResponse> call,Throwable t) {
                                          Toast.makeText(getApplicationContext(),t.getMessage(),Toast.LENGTH_LONG).show();
                                      }
                                  });
                                        /////////////////////////

                                    }
                                })
                                .setNegativeButton("Deny",int which) {
                                        dialog.cancel();
                                    }
                                })
                                .show();
                        return false;
                    }
                });
                ////////////////////////////////////////////////////////////////////////////////////






            }
        } );

    }


    public void drawMarker(LatLng point,String add){
        MarkerOptions markerOptions = new MarkerOptions();
        mMap.addMarker(markerOptions.position(point).title( add ).snippet(add).draggable( true ));
        mMap.addMarker(markerOptions.icon( BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA) ) );

        Toast.makeText( getApplicationContext()," "+point+" "+add,Toast.LENGTH_SHORT ).show();
    }


    private String getCompleteAddressString(double LATITUDE,double LONGITUDE) {
        String fullAdd = null;
        try {
            Geocoder geocoder = new Geocoder( getBaseContext(),Locale.getDefault() );
            List<Address> addresses = geocoder.getFromLocation( LATITUDE,LONGITUDE,1 );
            if (addresses.size() > 0) {
                Address address = addresses.get( 0 );
                fullAdd = address.getAddressLine( 0 );
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return fullAdd;
    }


}

我使用的是 Android Studio 模拟器。我认为“myPhone myX11 Plus”只接受 API 28。当我使用模拟器时，我的笔记本电脑很慢。